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Author Cataldo, M.; Evangelista, H.; Simões, J.C.; Godoi, R.H.M.; Simmonds, I.; Hollanda, M.H.; Wainer, I.; Aquino, F.; Van Grieken, R.
  Title Mineral dust variability in central West Antarctica associated with ozone depletion Type A1 Journal article
  Year 2013 Publication Atmospheric chemistry and physics Abbreviated Journal
  Volume 13 Issue 4 Pages 2165-2175
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract We present here data of mineral dust variability retrieved from an ice core of the central West Antarctic, spanning the last five decades. Main evidence provided by the geochemical analysis is that northerly air mass incursions to the coring site, tracked by insoluble dust microparticles, have declined over the past 50 yr. This result contrasts with dust records from ice cores reported to the coastal West Antarctic that show increases since mid-20th century. We attribute this difference to regional climatic changes due to the ozone depletion and its implications to westerly winds. We found that the diameters of insoluble microparticles in the central West Antarctica ice core are significantly correlated with cyclone depth (energy) and wind intensity around Antarctica.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000315406600027 Publication Date 2013-02-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1680-7316; 1680-7324 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved no
  Call Number UA @ admin @ c:irua:105832 Serial 8250
Permanent link to this record
 

 
Author Chirumamilla, C.S.; Palagani, A.; Kamaraj, B.; Declerck, K.; Verbeek, M.W.C.; Ryabtsova, O.; De Bosscher, K.; Bougarne, N.; Ruttens, B.; Gevaert, K.; Houtman, R.; De Vos, W.H.; Joossens, J.; van der Veken, P.; Augustyns, K.; van Ostade, X.; Bogaerts, A.; De Winter, H.; Vanden Berghe, W.
  Title Selective glucocorticoid receptor properties of GSK866 analogs with cysteine reactive warheads Type Administrative Services
  Year 2017 Publication Frontiers in immunology Abbreviated Journal Front Immunol
  Volume 8 Issue Pages 1324
  Keywords Administrative Services; A1 Journal article; Pharmacology. Therapy; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); Medicinal Chemistry (UAMC)
  Abstract Synthetic glucocorticoids (GC) are the mainstay therapy for treatment of acute and chronic inflammatory disorders. Due to the high adverse effects associated with long-term use, GC pharmacology has focused since the nineties on more selective GC ligand-binding strategies, classified as selective glucocorticoid receptor (GR) agonists (SEGRAs) or selective glucocorticoid receptor modulators (SEGRMs). In the current study, GSK866 analogs with electrophilic covalent-binding warheads were developed with potential SEGRA properties to improve their clinical safety profile for long-lasting topical skin disease applications. Since the off-rate of a covalently binding drug is negligible compared to that of a non-covalent drug, its therapeutic effects can be prolonged and typically, smaller doses of the drug are necessary to reach the same level of therapeutic efficacy, thereby potentially reducing systemic side effects. Different analogs of SEGRA GSK866 coupled to cysteine reactive warheads were characterized for GR potency and selectivity in various biochemical and cellular assays. GR- and NFκB-dependent reporter gene studies show favorable anti-inflammatory properties with reduced GR transactivation of two non-steroidal GSK866 analogs UAMC-1217 and UAMC-1218, whereas UAMC-1158 and UAMC-1159 compounds failed to modulate cellular GR activity. These results were further supported by GR immuno-localization and S211 phospho-GR western analysis, illustrating significant GR phosphoactivation and nuclear translocation upon treatment of GSK866, UAMC-1217, or UAMC-1218, but not in case of UAMC-1158 or UAMC-1159. Furthermore, mass spectrometry analysis of tryptic peptides of recombinant GR ligand-binding domain (LBD) bound to UAMC-1217 or UAMC-1218 confirmed covalent cysteine-dependent GR binding. Finally, molecular dynamics simulations, as well as glucocorticoid receptor ligand-binding domain (GR-LBD) coregulator interaction profiling of the GR-LBD bound to GSK866 or its covalently binding analogs UAMC-1217 or UAMC-1218 revealed subtle conformational differences that might underlie their SEGRA properties. Altogether, GSK866 analogs UAMC-1217 and UAMC-1218 hold promise as a novel class of covalent-binding SEGRA ligands for the treatment of topical inflammatory skin disorders.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Place of publication unknown Editor
  Language Wos 000414136300001 Publication Date 2017-11-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1664-3224 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 6.429 Times cited 2 Open Access OpenAccess
  Notes Approved Most recent IF: 6.429
  Call Number UA @ lucian @ c:irua:146485 Serial 4750
Permanent link to this record
 

 
Author Smets, B.; Boschker, H.T.S.; Wetherington, M.T.; Lelong, G.; Hidalgo-Martinez, S.; Polerecky, L.; Nuyts, G.; De Wael, K.; Meysman, F.J.R.
  Title Multi-wavelength Raman microscopy of nickel-based electron transport in cable bacteria Type A1 Journal article
  Year 2024 Publication Frontiers in microbiology Abbreviated Journal
  Volume 15 Issue Pages 1208033-16
  Keywords A1 Journal article
  Abstract Cable bacteria embed a network of conductive protein fibers in their cell envelope that efficiently guides electron transport over distances spanning up to several centimeters. This form of long-distance electron transport is unique in biology and is mediated by a metalloprotein with a sulfur-coordinated nickel (Ni) cofactor. However, the molecular structure of this cofactor remains presently unknown. Here, we applied multi-wavelength Raman microscopy to identify cell compounds linked to the unique cable bacterium physiology, combined with stable isotope labeling, and orientation-dependent and ultralow-frequency Raman microscopy to gain insight into the structure and organization of this novel Ni-cofactor. Raman spectra of native cable bacterium filaments reveal vibrational modes originating from cytochromes, polyphosphate granules, proteins, as well as the Ni-cofactor. After selective extraction of the conductive fiber network from the cell envelope, the Raman spectrum becomes simpler, and primarily retains vibrational modes associated with the Ni-cofactor. These Ni-cofactor modes exhibit intense Raman scattering as well as a strong orientation-dependent response. The signal intensity is particularly elevated when the polarization of incident laser light is parallel to the direction of the conductive fibers. This orientation dependence allows to selectively identify the modes that are associated with the Ni-cofactor. We identified 13 such modes, some of which display strong Raman signals across the entire range of applied wavelengths (405–1,064 nm). Assignment of vibrational modes, supported by stable isotope labeling, suggest that the structure of the Ni-cofactor shares a resemblance with that of nickel bis(1,2-dithiolene) complexes. Overall, our results indicate that cable bacteria have evolved a unique cofactor structure that does not resemble any of the known Ni-cofactors in biology.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 001189511900001 Publication Date 2024-03-08
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1664-302x ISBN Additional Links UA library record; WoS full record
  Impact Factor Times cited Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:205115 Serial 9214
Permanent link to this record
 

 
Author Cao, S.; Nishida, M.; Schryvers, D.
  Title FIB/SEM applied to quantitative 3D analysis of precipitates in Ni-Ti Type A1 Journal article
  Year 2011 Publication Diffusion and defect data : solid state data : part B : solid state phenomena Abbreviated Journal
  Volume 172/174 Issue Pages 1284-1289
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Ni4Ti3 precipitates with a heterogeneous distribution growing in a polycrystalline Ni50.8Ti49.2 alloy have been investigated in a Dual-Beam FIB/SEM system. The volume ratio, mean volume, central plane diameter, thickness, aspect ratio and sphericity of the precipitates in the grain interior as well as near to the grain boundary were measured or calculated. The morphology of the precipitates was classified according to the Zingg scheme. The multistage martensitic transformation occurring in these kinds of samples is interpreted in view of the data of this heterogeneous microstructure of matrix and precipitates.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Vaduz Editor
  Language Wos 000303359700199 Publication Date 2011-07-04
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1662-9779; ISBN Additional Links UA library record; WoS full record
  Impact Factor Times cited Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:90152 Serial 1188
Permanent link to this record
 

 
Author Bogaerts, A.; Aghaei, M.; Autrique, D.; Lindner, H.; Chen, Z.; Wendelen, W.
  Title Computer simulations of laser ablation, plume expansion and plasma formation Type H1 Book chapter
  Year 2011 Publication Abbreviated Journal
  Volume Issue Pages 1-10
  Keywords H1 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Trans Tech Place of Publication Aedermannsdorf Editor
  Language Wos 000292658900001 Publication Date 2011-04-20
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1662-8985; ISBN 978-3-03785-081-7 Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited 8 Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:88340 Serial 470
Permanent link to this record
 

 
Author McLachlan, G.; Majdak, P.; Reijniers, J.; Mihocic, M.; Peremans, H.
  Title Dynamic spectral cues do not affect human sound localization during small head movements Type A1 Journal article
  Year 2023 Publication Frontiers in neuroscience Abbreviated Journal
  Volume 17 Issue Pages 1027827-10
  Keywords A1 Journal article; Psychology; Condensed Matter Theory (CMT); Engineering Management (ENM)
  Abstract Natural listening involves a constant deployment of small head movement. Spatial listening is facilitated by head movements, especially when resolving front-back confusions, an otherwise common issue during sound localization under head-still conditions. The present study investigated which acoustic cues are utilized by human listeners to localize sounds using small head movements (below ±10° around the center). Seven normal-hearing subjects participated in a sound localization experiment in a virtual reality environment. Four acoustic cue stimulus conditions were presented (full spectrum, flattened spectrum, frozen spectrum, free-field) under three movement conditions (no movement, head rotations over the yaw axis and over the pitch axis). Localization performance was assessed using three metrics: lateral and polar precision error and front-back confusion rate. Analysis through mixed-effects models showed that even small yaw rotations provide a remarkable decrease in front-back confusion rate, whereas pitch rotations did not show much of an effect. Furthermore, MSS cues improved localization performance even in the presence of dITD cues. However, performance was similar between stimuli with and without dMSS cues. This indicates that human listeners utilize the MSS cues before the head moves, but do not rely on dMSS cues to localize sounds when utilizing small head movements.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000938567400001 Publication Date 2023-02-03
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1662-4548; 1662-453x ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:194507 Serial 9025
Permanent link to this record
 

 
Author Cotte, M.; Genty-Vincent, A.; Janssens, K.; Susini, J.
  Title Applications of synchrotron X-ray nano-probes in the field of cultural heritage Type A1 Journal article
  Year 2018 Publication Comptes rendus : physique Abbreviated Journal Cr Phys
  Volume 19 Issue 7 Pages 575-588
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract Synchrotron-based techniques are increasingly used in the field of cultural heritage, and this review focuses notably on the application of nano-beams to access high-spatial-resolution information on fragments sampled in historical or model artworks. Depending on the targeted information, various nano-analytical techniques can be applied, providing both identification and localization of the various components. More precisely, nano-X-ray fluorescence probes elements, nano-X-ray diffraction identify crystalline phases, and nano X-ray absorption spectroscopy is sensitive to speciation. Furthermore, computed tomography-based techniques can provide useful information about the morphology and in particular the porosity of materials. (C) 2018 Academie des sciences. Published by Elsevier Masson SAS.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000451631400006 Publication Date 2018-08-13
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1631-0705; 1878-1535 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.048 Times cited 3 Open Access
  Notes ; ; Approved Most recent IF: 2.048
  Call Number UA @ admin @ c:irua:156320 Serial 5476
Permanent link to this record
 

 
Author Pardoen, T.; Colla, M.-S.; Idrissi, H.; Amin-Ahmadi, B.; Wang, B.; Schryvers, D.; Bhaskar, U.K.; Raskin, J.-P.
  Title A versatile lab-on-chip test platform to characterize elementary deformation mechanisms and electromechanical couplings in nanoscopic objects Type A1 Journal article
  Year 2016 Publication Comptes rendus : physique Abbreviated Journal Cr Phys
  Volume 17 Issue 17 Pages 485-495
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract A nanomechanical on-chip test platform has recently been developed to deform under a variety of loading conditions freestanding thin films, ribbons and nanowires involving submicron dimensions. The lab-on-chip involves thousands of elementary test structures from which the elastic modulus, strength, strain hardening, fracture, creep properties can be extracted. The technique is amenable to in situ transmission electron microscopy (TEM) investigations to unravel the fundamental underlying deformation and fracture mechanisms that often lead to size-dependent effects in small-scale samples. The method allows addressing electrical and magnetic couplings as well in order to evaluate the impact of large mechanical stress levels on different solid-state physics phenomena. We had the chance to present this technique in details to Jacques Friedel in 2012 who, unsurprisingly, made a series of critical and very relevant suggestions. In the spirit of his legacy, the paper will address both mechanics of materials related phenomena and couplings with solids state physics issues.
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  Publisher Place of Publication Editor
  Language Wos 000373524300020 Publication Date 2015-12-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1631-0705 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.048 Times cited 7 Open Access
  Notes This research has been performed with the financial support of the “Politique scientifique fédérale” under the framework of the interuniversity attraction poles program, IAP7/21, as well as with the support of the “Communauté française de Belgique” under the program “Actions de recherche concertées” ARC 05/10-330 and ARC Convention No. 11/16-037. The support of the “Fonds belge pour la recherche dans l'industrie et l'agriculture (FRIA)” for M.-S. Colla is also gratefully acknowledged as are the FWO research projects G012012N “Understanding nanocrystalline mechanical behavior from structural investigations” for B. Amin-Ahmadi. Approved Most recent IF: 2.048
  Call Number c:irua:129995 Serial 4014
Permanent link to this record
 

 
Author Thomassen, G.; Egiguren Vila, U.; Van Dael, M.; Lemmens, B.; Van Passel, S.
  Title A techno-economic assessment of an algal-based biorefinery Type A1 Journal article
  Year 2016 Publication Clean Technologies And Environmental Policy Abbreviated Journal Clean Technol Envir
  Volume 18 Issue 6 Pages 1849-1862
  Keywords A1 Journal article; Economics; Engineering sciences. Technology; Engineering Management (ENM)
  Abstract Economic and technological assessments have identified difficulties with the commercialization of bulk products from microalgae, like biofuels. To overcome these problems, a multi-product algal-based biorefinery has been proposed. This paper performs a techno-economic assessment of such a biorefinery. Four production pathways, ranging from a base case with commercial technologies to an improved case with innovative technologies, are analyzed. All region-specific parameters were adapted to Belgian conditions. Three scenarios result in techno-economically viable production plants. The most profitable scenario is the scenario which uses a specialized membrane for medium recycling and an open pond algae cultivation. Although the inclusion of a photobioreactor decreases the culture medium costs, the higher investment costs result in lower economic profits. The carotenoid content and price are identified as critical parameters. Furthermore, the economies of scale assumption for the photobioreactor is critical for the feasibility of this cultivation technology. The techno-economic assessment is an important methodology to guide and evaluate further improvements in research and shorten the time-to-market for innovative technologies in this field.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000384470700017 Publication Date 2016-03-26
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-954x ISBN Additional Links UA library record; WoS full record; WoS citing articles; WoS full record; WoS citing articles
  Impact Factor 3.331 Times cited 24 Open Access
  Notes ; We would like to thank Herman Beckers, Metin Bulut, Frans Snijkers, Joris van der Have, Jan Vanderheyden, Leen Bastiaens, and Lies Eykens for the provision of technological and economic data and the useful discussions on the assumptions in the model. We would also like to thank Eva Cordery for proofreading the article and the anonymous reviewers for their valuable feedback and suggestions. Furthermore, we gratefully acknowledge the financial support of the Fundacion Novia Salcedo. ; Approved Most recent IF: 3.331
  Call Number UA @ admin @ c:irua:139027 Serial 6262
Permanent link to this record
 

 
Author De Schepper, E.; Van Passel, S.; Lizin, S.; Achten, W.M.J.; Van Acker, K.
  Title Cost-efficient emission abatement of energy and transportation technologies : mitigation costs and policy impacts for Belgium Type A1 Journal article
  Year 2014 Publication Clean Technologies And Environmental Policy Abbreviated Journal Clean Technol Envir
  Volume 16 Issue 6 Pages 1107-1118
  Keywords A1 Journal article; Economics; Engineering sciences. Technology; Engineering Management (ENM)
  Abstract In the light of global warming, this paper develops a framework to compare energy and transportation technologies in terms of cost-efficient GHG emission reduction. We conduct a simultaneous assessment of economic and environmental performances through life cycle costing and life cycle assessment. To calculate the GHG mitigation cost, we create reference systems within the base scenario. Further, we extend the concept of the mitigation cost, allowing (i) comparision of technologies given a limited investment resource, and (ii) evaluation of the direct impact of policy measures by means of the subsidized mitigation cost. The framework is illustrated with a case of solar photovoltaics (PV), grid powered battery electric vehicles (BEVs), and solar powered BEVs for a Belgian small and medium sized enterprise. The study's conclusions are that the mitigation cost of solar PV is high, even though this is a mature technology. The emerging mass produced BEVs on the other hand are found to have a large potential for cost-efficient GHG mitigation as indicated by their low cost of mitigation. Finally, based on the subsidized mitigation cost, we conclude that the current financial stimuli for all three investigated technologies are excessive when compared to the CO2 market value under the EU Emission Trading Scheme.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000339874900010 Publication Date 2014-02-12
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-954x ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.331 Times cited 14 Open Access
  Notes ; ; Approved Most recent IF: 3.331; 2014 IF: 1.934
  Call Number UA @ admin @ c:irua:127543 Serial 6175
Permanent link to this record
 

 
Author Van Oijstaeijen, W.; Finizola e Silva, M.; Back, P.; Collins, A.; Verheyen, K.; De Beelde, R.; Cools, J.; Van Passel, S.
  Title The Nature Smart Cities business model : a rapid decision-support and scenario analysis tool to reveal the multi-benefits of green infrastructure investments Type Administrative Services
  Year 2023 Publication Urban forestry & urban greening Abbreviated Journal
  Volume 84 Issue Pages 127923-14
  Keywords Administrative Services; A1 Journal article; Art; Engineering Management (ENM)
  Abstract Incorporating natural spaces within urban areas has been shown to have multiple benefits. However, despite greening and adaptation strategies at different levels of government, progress remains slow with a lack of easy to use and comprehensive tools identified as key to overcoming this. This paper presents a co-designed tool with academic and local authority partners to demonstrate the ecosystem service benefits of small-scale urban green infrastructure projects. Through the tool, users can readily assess the impact of green infrastructure investments on the delivery of a selection of ecosystem services in the early stages of a project. Furthermore, the tool provides a standardised assessment of cultural ecosystem services' contributions, as well as offering a method to score spatial designs on the impact on habitat for biodiversity. Use of the tool is demonstrated using a pilot study in Kapelle, the Netherlands. The results set out an overview of the impacts of the spatial design on estimated ecosystem service delivery. They also show the tool's potential to add value in early project stages and as a planning and design tool, helping to maximise the benefits that can be achieved through green infrastructure design. Complementing these arguments with ball-park estimations on green infrastructure costs, the Nature Smart Cities Business Model aims to offer public sector officers the means to create a business case for green infrastructure measures, facilitating the translation from strategies to actual plans, thus benefitting green infrastructure implementation in the public realm.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000982199900001 Publication Date 2023-04-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-8667 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 6.4 Times cited Open Access
  Notes Approved Most recent IF: 6.4; 2023 IF: 2.113
  Call Number UA @ admin @ c:irua:196748 Serial 9235
Permanent link to this record
 

 
Author Swaenen, M.; Stefaniak, E.A.; Frost, R.; Worobiec, A.; Van Grieken, R.
  Title Investigation of inclusions trapped inside Libyan desert glass by Raman microscopy Type A1 Journal article
  Year 2010 Publication Analytical and bioanalytical chemistry Abbreviated Journal
  Volume 397 Issue 7 Pages 2659-2665
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
  Abstract Several specimens of Libyan desert glass (LDG), an enigmatic natural glass from Egypt, were subjected to investigation by micro-Raman spectroscopy. The spectra of inclusions inside the LDG samples were successfully measured through the layers of glass and the mineral species were identified on this basis. The presence of cristobalite as typical for high-temperature melt products was confirmed, together with co-existing quartz. TiO2 was determined in two polymorphic species rutile and anatase. Micro-Raman spectroscopy proved also the presence of minerals unusual for high-temperature glasses such as anhydrite and aragonite.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000280122100004 Publication Date 2010-01-26
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642; 1618-2650 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved no
  Call Number UA @ admin @ c:irua:83276 Serial 8125
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Author Avigo, D.; Godoi, A.F.L.; Janissek, P.R.; Makarovska, Y.; Krata, A.; Potgieter-Vermaak, S.; Alfoldy, B.; Van Grieken, R.; Godoi, R.H.M.
  Title Particulate matter analysis at elementary schools in Curitiba, Brazil Type A1 Journal article
  Year 2008 Publication Analytical and bioanalytical chemistry Abbreviated Journal
  Volume 391 Issue 4 Pages 1459-1468
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000256088700043 Publication Date 2008-03-24
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642; 1618-2650 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved no
  Call Number UA @ admin @ c:irua:68797 Serial 8360
Permanent link to this record
 

 
Author Cabal Rodríguez, A.E.; Leyva Pernia, D.; Schalm, O.; van Espen, P.J.M.
  Title Possibilities of energy-resolved X-ray radiography for the investigation of paintings Type A1 Journal article
  Year 2012 Publication Analytical and bioanalytical chemistry Abbreviated Journal
  Volume 402 Issue 4 Pages 1471-1480
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract X-ray radiographic images of paintings often show little or no contrast. In order to increase the contrast in radiographic images we measured the X-ray spectrum of a low power X-ray tube, after passing through the painting, with a high energy-resolution SDD detector. To obtain images, the detector is collimated with a 400 mu m diameter pinhole and the painting was moved through the beam in the x and y-direction using a dwell time of a few seconds per pixel. The data obtained consists of a data cube of, typically, 200 x 200 pixels and a 512-channel X-ray spectrum for each pixel, spanning the energy range from 0 to 40 keV. Having the absorbance spectrum available for each pixel, we are able, a posteriori, to produce images by edge subtraction for any given element. In this way high contrast, element-specific, images can be obtained. Because of the high energy-resolution a much simpler edge subtraction algorithm can be applied. We also used principal-component imaging to obtain, in a more automated way, images with high contrast. Some of these images can easily be attributed to specific elements. It turns out that preprocessing of the spectral data is crucial for the success of the multivariate image processing.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000299842000008 Publication Date 2011-07-14
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642; 1618-2650 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved no
  Call Number UA @ admin @ c:irua:96200 Serial 8394
Permanent link to this record
 

 
Author Cagno, S.; Janssens, K.; Mendera, M.
  Title Compositional analysis of Tuscan glass samples: in search of raw materials fingerprints Type A1 Journal article
  Year 2008 Publication Analytical and bioanalytical chemistry Abbreviated Journal Anal Bioanal Chem
  Volume 391 Issue 4 Pages 1389-1395
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000256088700035 Publication Date 2008-02-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.431 Times cited 26 Open Access
  Notes Approved Most recent IF: 3.431; 2008 IF: 3.328
  Call Number UA @ admin @ c:irua:69320 Serial 5545
Permanent link to this record
 

 
Author Bugani, S.; Camaiti, M.; Morselli, L.; Van de Casteele, E.; Janssens, K.
  Title Investigating morphological changes in treated vs. untreated stone building materials by x-ray micro-CT Type A1 Journal article
  Year 2008 Publication Analytical and bioanalytical chemistry Abbreviated Journal Anal Bioanal Chem
  Volume 391 Issue 4 Pages 1343-1350
  Keywords A1 Journal article; Vision lab; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000256088700030 Publication Date 2008-03-14
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.431 Times cited 25 Open Access
  Notes Approved Most recent IF: 3.431; 2008 IF: 3.328
  Call Number UA @ admin @ c:irua:69319 Serial 5673
Permanent link to this record
 

 
Author Terzano, R.; Alfeld, M.; Janssens, K.; Vekemans, B.; Schoonjans, T.; Vincze, L.; Tomasi, N.; Pinton, R.; Cesco, S.
  Title Spatially resolved (semi)quantitative determination of iron (Fe) in plants by means of synchrotron micro X-ray fluorescence Type A1 Journal article
  Year 2013 Publication Analytical and bioanalytical chemistry Abbreviated Journal Anal Bioanal Chem
  Volume 405 Issue 10 Pages 3341-3350
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract Iron (Fe) is an essential element for plant growth and development; hence determining Fe distribution and concentration inside plant organs at the microscopic level is of great relevance to better understand its metabolism and bioavailability through the food chain. Among the available microanalytical techniques, synchrotron mu-XRF methods can provide a powerful and versatile array of analytical tools to study Fe distribution within plant samples. In the last years, the implementation of new algorithms and detection technologies has opened the way to more accurate (semi)quantitative analyses of complex matrices like plant materials. In this paper, for the first time the distribution of Fe within tomato roots has been imaged and quantified by means of confocal mu-XRF and exploiting a recently developed fundamental parameter-based algorithm. With this approach, Fe concentrations ranging from few hundreds of ppb to several hundreds of ppm can be determined at the microscopic level without cutting sections. Furthermore, Fe (semi)quantitative distribution maps were obtained for the first time by using two opposing detectors to collect simultaneously the XRF radiation emerging from both sides of an intact cucumber leaf.
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  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000316338700033 Publication Date 2013-02-07
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1618-2642 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.431 Times cited 27 Open Access
  Notes ; Research was supported by grants from Italian MIUR (FIRB-Programma “Futuro in Ricerca”) and Free University of Bolzano (TN5046 and TN5056). Synchrotron experiments at HASY-LAB were financially supported by the European Community Research Infrastructure Action under the FP6 “Structuring the European Research Area” Program I (Integrating Activity on Synchrotron and Free Electron Laser Science; project: contract RII3-CT-2004-506008). Matthias Alfeld receives a Ph.D. fellowship of the Research Foundation-Flanders (FWO). We thank Karen Rickers-Appel for her scientific and technical support in obtaining the experimental data at Beamline L (HASYLAB, DESY, Hamburg, Germany). ; Approved Most recent IF: 3.431; 2013 IF: 3.578
  Call Number UA @ admin @ c:irua:108261 Serial 5838
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Author Keunecke, M.; Lyzwa, F.; Schwarzbach, D.; Roddatis, V.; Gauquelin, N.; Müller-Caspary, K.; Verbeeck, J.; Callori, S.J.; Klose, F.; Jungbauer, M.; Moshnyaga, V.
  Title High-TCInterfacial Ferromagnetism in SrMnO3/LaMnO3Superlattices Type A1 Journal article
  Year 2019 Publication Advanced functional materials Abbreviated Journal Adv. Funct. Mater.
  Volume Issue Pages 1808270
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Heterostructures of strongly correlated oxides demonstrate various intriguing and potentially useful interfacial phenomena. LaMnO3/SrMnO3 superlattices are presented showcasing a new high‐temperature ferromagnetic phase with Curie temperature, TC ≈360 K, caused by electron transfer from the surface of the LaMnO3 donor layer into the neighboring SrMnO3 acceptor layer. As a result, the SrMnO3 (top)/LaMnO3 (bottom) interface shows an enhancement of the magnetization as depth‐profiled by polarized neutron reflectometry. The length scale of charge transfer, λTF ≈2 unit cells, is obtained from in situ growth monitoring by optical ellipsometry, supported by optical simulations, and further confirmed by high resolution electron microscopy and spectroscopy. A model of the inhomogeneous distribution of electron density in LaMnO3/SrMnO3 layers along the growth direction is concluded to account for a complex interplay between ferromagnetic and antiferromagnetic layers in superlattices.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000535358900008 Publication Date 2019-02-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616301X ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 15.621 Times cited 26 Open Access
  Notes The authors thank EU FP7 Framework (Project IFOX) and DFG (SFB 1073, TP B04, A02, Z02) for the financial support. J.V., K.M.C and N.G. acknowledge funding through the GOA project “Solarpaint” of the University of Antwerp and from the FWO project G.0044.13N (Charge ordering). The microscope used in this work was partly funded by the Hercules Fund from the Flemish Government. The PNR experiment was funded by the Australian Nuclear Science and Technology Organization (proposal number P3985). Approved Most recent IF: NA
  Call Number EMAT @ emat @UA @ admin @ c:irua:162108 Serial 5294
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Author Filippov, S.K.; Sedlacek, O.; Bogomolova, A.; Vetrik, M.; Jirak, D.; Kovar, J.; Kucka, J.; Bals, S.; Turner, S.; Stepanek, P.; Hruby, M.;
  Title Glycogen as a biodegradable construction nanomaterial for in vivo use Type A1 Journal article
  Year 2012 Publication Macromolecular bioscience Abbreviated Journal Macromol Biosci
  Volume 12 Issue 12 Pages 1731-1738
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract It is demonstrated that glycogen as a biodegradable and inexpensive material coming from renewable resources can be used as a carrier for the construction of in vivo imaging nanoagents. The model system considered is composed of glycogen modified with gadolinium and fluorescent labels. Systematic studies of properties of these nanocarriers by a variety of physical methods and results of in vivo tests of biodegradability are reported. This represents, to the authors' best knowledge, the first such use of glycogen.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000312242600016 Publication Date 2012-11-21
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-5187; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.238 Times cited 22 Open Access
  Notes 262348 ESMI; FWO; Hercules Approved Most recent IF: 3.238; 2012 IF: 3.742
  Call Number UA @ lucian @ c:irua:105286 Serial 1354
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Author Yiu, H.H.P.; Niu, H.-jun; Biermans, E.; Van Tendeloo, G.; Rosseinsky, M.J.
  Title Designed multifunctional nanocomposites for biomedical applications Type A1 Journal article
  Year 2010 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 20 Issue 10 Pages 1599-1609
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The assembly of multifunctional nanocomposite materials is demonstrated by exploiting the molecular sieving property of SBA-16 nanoporous silica and using it as a template material. The cages of the pore networks are used to host iron oxide magnetic nanoparticles, leaving a pore volume of 0.29 cm3 g-1 accessible for drug storage. This iron oxide-silica nanocomposite is then functionalized with amine groups. Finally the outside of the particle is decorated with antibodies. Since the size of many protein molecules, including that of antibodies, is too large to enter the pore system of SBA-16, the amine groups inside the pores are preserved for drug binding. This is proven using a fluorescent protein, fluorescein-isothiocyanate-labeled bovine serum albumin (FITC-BSA), with the unreacted amine groups inside the pores dyed with rhodamine B isothiocyanate (RITC). The resulting nanocomposite material offers a dual-targeting drug delivery mechanism, i.e., magnetic and antibody-targeting, while the functionalization approach is extendable to other applications, e.g., fluorescence-magnetic dual-imaging diagnosis.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000278597100008 Publication Date 2010-04-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X;1616-3028; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 56 Open Access
  Notes Approved Most recent IF: 12.124; 2010 IF: 8.508
  Call Number UA @ lucian @ c:irua:83298 Serial 662
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Author Solís, C.; Rossell, M.D.; Garcia, G.; Van Tendeloo, G.; Santiso, J.
  Title Unusual strain accommodation and conductivity enhancement by structure modulation variations in Sr4Fe6O12+\delta epitaxial films Type A1 Journal article
  Year 2008 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 18 Issue 5 Pages 785-793
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000254448400014 Publication Date 2008-03-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X;1616-3028; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 10 Open Access
  Notes Iap V-1; Gbou Approved Most recent IF: 12.124; 2008 IF: 6.808
  Call Number UA @ lucian @ c:irua:70039 Serial 3818
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Author Huijben, M.; Koster, G.; Kruize, M.K.; Wenderich, S.; Verbeeck, J.; Bals, S.; Slooten, E.; Shi, B.; Molegraaf, H.J.A.; Kleibeuker, J.E.; Van Aert, S.; Goedkoop, J.B.; Brinkman, A.; Blank, D.H.A.; Golden, M.S.; Van Tendeloo, G.; Hilgenkamp, H.; Rijnders, G.;
  Title Defect engineering in oxide heterostructures by enhanced oxygen surface exchange Type A1 Journal article
  Year 2013 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 23 Issue 42 Pages 5240-5248
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract The synthesis of materials with well-controlled composition and structure improves our understanding of their intrinsic electrical transport properties. Recent developments in atomically controlled growth have been shown to be crucial in enabling the study of new physical phenomena in epitaxial oxide heterostructures. Nevertheless, these phenomena can be influenced by the presence of defects that act as extrinsic sources of both doping and impurity scattering. Control over the nature and density of such defects is therefore necessary to fully understand the intrinsic materials properties and exploit them in future device technologies. Here, it is shown that incorporation of a strontium copper oxide nano-layer strongly reduces the impurity scattering at conducting interfaces in oxide LaAlO3SrTiO3(001) heterostructures, opening the door to high carrier mobility materials. It is proposed that this remote cuprate layer facilitates enhanced suppression of oxygen defects by reducing the kinetic barrier for oxygen exchange in the hetero-interfacial film system. This design concept of controlled defect engineering can be of significant importance in applications in which enhanced oxygen surface exchange plays a crucial role.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000327480900003 Publication Date 2013-06-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 87 Open Access
  Notes Countatoms; Vortex; Fwo; Ifox ECASJO_; Approved Most recent IF: 12.124; 2013 IF: 10.439
  Call Number UA @ lucian @ c:irua:109273UA @ admin @ c:irua:109273 Serial 615
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Author Wang, J.T.W.; Cabana, L.; Bourgognon, M.; Kafa, H.; Protti, A.; Venner, K.; Shah, A.M.; Sosabowski, J.K.; Mather, S.J.; Roig, A.; Ke, X.; Van Tendeloo, G.; de Rosales, R.T.M.; Tobias, G.; Al-Jamal, K.T.
  Title Magnetically decorated multiwalled carbon nanotubes as dual MRI and SPECT contrast agents Type A1 Journal article
  Year 2014 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 24 Issue 13 Pages 1880-1894
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Carbon nanotubes (CNTs) are one of the most promising nanomaterials to be used in biomedicine for drug/gene delivery as well as biomedical imaging. This study develops radio-labeled, iron oxide-decorated multiwalled CNTs (MWNTs) as dual magnetic resonance (MR) and single photon emission computed tomography (SPECT) contrast agents. Hybrids containing different amounts of iron oxide are synthesized by in situ generation. Physicochemical characterisations reveal the presence of superparamagnetic iron oxide nanoparticles (SPION) granted the magnetic properties of the hybrids. Further comprehensive examinations including high resolution transmission electron microscopy (HRTEM), fast Fourier transform simulations, X-ray diffraction, and X-ray photoelectron spectroscopy assure the conformation of prepared SPION as γ-Fe2O3. High r2 relaxivities are obtained in both phantom and in vivo MRI compared to the clinically approved SPION Endorem. The hybrids are successfully radio labeled with technetium-99m through a functionalized bisphosphonate and enable SPECT/CT imaging and γ-scintigraphy to quantitatively analyze the biodistribution in mice. No abnormality is found by histological examination and the presence of SPION and MWNT are identified by Perls stain and Neutral Red stain, respectively. TEM images of liver and spleen tissues show the co-localization of SPION and MWNTs within the same intracellular vesicles, indicating the in vivo stability of the hybrids after intravenous injection. The results demonstrate the capability of the present SPIONMWNT hybrids as dual MRI and SPECT contrast agents for in vivo use.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000333674100007 Publication Date 2013-11-19
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 50 Open Access
  Notes Countatoms; Fp7; Esteem2; esteem2_ta Approved Most recent IF: 12.124; 2014 IF: 11.805
  Call Number UA @ lucian @ c:irua:111589 Serial 1891
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Author Boschker, H.; Verbeeck, J.; Egoavil, R.; Bals, S.; Van Tendeloo, G.; Huijben, M.; Houwman, E.P.; Koster, G.; Blank, D.H.A.; Rijnders, G.
  Title Preventing the reconstruction of the polar discontinuity at oxide heterointerfaces Type A1 Journal article
  Year 2012 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 22 Issue 11 Pages 2235-2240
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Perovskite oxide heteroepitaxy receives much attention because of the possibility to combine the diverse functionalities of perovskite oxide building blocks. A general boundary condition for the epitaxy is the presence of polar discontinuities at heterointerfaces. These polar discontinuities result in reconstructions, often creating new functionalities at the interface. However, for a significant number of materials these reconstructions are unwanted as they alter the intrinsic materials properties at the interface. Therefore, a strategy to eliminate this reconstruction of the polar discontinuity at the interfaces is required. We show that the use of compositional interface engineering can prevent the reconstruction at the La0.67Sr0.33MnO3/SrTiO3 (LSMO/STO) interface. The polar discontinuity at this interface can be removed by the insertion of a single La0.33Sr0.67O layer, resulting in improved interface magnetization and electrical conductivity.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000304749600002 Publication Date 2012-03-23
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 72 Open Access
  Notes We wish to acknowledge the financial support of the Dutch Science Foundation (NWO) and the Dutch Nanotechnology program NanoNed. S. B. acknowledges the financial support from the European Union under the Framework 6 program under a contract for an Integrated Infrastructure Initiative. Reference 026019 ESTEEM. J. V. and G. V. T. acknowledge funding from the European Research Council under the 7th Framework Program (FP7), ERC grant N246791 – COUNTATOMS. R. E. acknowledges funding by the European Union Council under the 7th Framework Program (FP7) grant NNMP3-LA-2010-246102 IFOX. We thank Sandra Van Aert for stimulating discussions. Approved Most recent IF: 12.124; 2012 IF: 9.765
  Call Number UA @ lucian @ c:irua:98907UA @ admin @ c:irua:98907 Serial 2712
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Author Khaletskaya, K.; Turner, S.; Tu, M.; Wannapaiboon, S.; Schneemann, A.; Meyer, R.; Ludwig, A.; Van Tendeloo, G.; Fischer, R.A.
  Title Self-directed localization of ZIF-8 thin film formation by conversion of ZnO nanolayers Type A1 Journal article
  Year 2014 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 24 Issue 30 Pages 4804-4811
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Control of localized metal-organic framework (MOF) thin film formation is a challenge. Zeolitic imidazolate frameworks (ZIFs) are an important sub-class of MOFs based on transition metals and imidazolate linkers. Continuous coatings of intergrown ZIF crystals require high rates of heterogeneous nucleation. In this work, substrates coated with zinc oxide layers are used, obtained by atomic layer deposition (ALD) or by magnetron sputtering, to provide the Zn2+ ions required for nucleation and localized growth of ZIF-8 films ([Zn(mim)(2)]; Hmim = 2-methylimidazolate). The obtained ZIF-8 films reveal the expected microporosity, as deduced from methanol adsorption studies using an environmentally controlled quartz crystal microbalance (QCM) and comparison with bulk ZIF-8 reference data. The concept is transferable to other MOFs, and is applied to the formation of [Al(OH)(1,4-ndc)](n) (ndc = naphtalenedicarboxylate) thin films derived from Al2O3 nanolayers.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000340549900010 Publication Date 2014-05-07
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 77 Open Access
  Notes 312483 Esteem2; Fwo; esteem2_ta Approved Most recent IF: 12.124; 2014 IF: 11.805
  Call Number UA @ lucian @ c:irua:119215 Serial 2975
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Author Spyrou, K.; Potsi, G.; Diamanti, E.K.; Ke, X.; Serestatidou, E.; Verginadis, I.I.; Velalopoulou, A.P.; Evangelou, A.M.; Deligiannakis, Y.; Van Tendeloo, G.; Gournis, D.; Rudolf, P.;
  Title Towards Novel Multifunctional Pillared Nanostructures: Effective Intercalation of Adamantylamine in Graphene Oxide and Smectite Clays Type A1 Journal article
  Year 2014 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 24 Issue 37 Pages 5841-5850
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Multifunctional pillared materials are synthesized by the intercalation of cage-shaped adamantylamine (ADMA) molecules into the interlayer space of graphite oxide (GO) and aluminosilicate clays. The physicochemical and structural properties of these hybrids, determined by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman and X-ray photoemission (XPS) spectroscopies and transmission electron microscopy (TEM) show that they can serve as tunable hydrophobic/hydrophilic and stereospecific nanotemplates. Thus, in ADMA-pillared clay hybrids, the phyllomorphous clay provides a hydrophilic nanoenvironment where the local hydrophobicity is modulated by the presence of ADMA moieties. On the other hand, in the ADMA-GO hybrid, both the aromatic rings of GO sheets and the ADMA molecules define a hydrophobic nanoenvironment where sp(3)-oxo moieties (epoxy, hydroxyl and carboxyl groups), present on GO, modulate hydrophilicity. As test applications, these pillared nanostructures are capable of selective/stereospecific trapping of small chlorophenols or can act as cytotoxic agents.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000342794500008 Publication Date 2014-07-19
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 19 Open Access
  Notes Approved Most recent IF: 12.124; 2014 IF: 11.805
  Call Number UA @ lucian @ c:irua:121085 Serial 3686
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Author Solmaz, A.; Huijben, M.; Koster, G.; Egoavil, R.; Gauquelin, N.; Van Tendeloo, G.; Verbeeck, J.; Noheda, B.; Rijnders, G.
  Title Domain Selectivity in BiFeO3Thin Films by Modified Substrate Termination Type A1 Journal article
  Year 2016 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 26 Issue 26 Pages 2882-2889
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Ferroelectric domain formation is an essential feature in ferroelectric thin films. These domains and domain walls can be manipulated depending on the growth conditions. In rhombohedral BiFeO3 thin films, the ordering of the domains and the presence of specific types of domain walls play a crucial role in attaining unique ferroelectric and magnetic properties. In this study, controlled ordering of domains in BiFeO3 film is presented, as well as a controlled selectivity between two types of domain walls is presented, i.e., 71° and 109°, by modifying the substrate termination. The experiments on two different substrates, namely SrTiO3 and TbScO3, strongly indicate that the domain selectivity is determined by the growth kinetics of the initial BiFeO3 layers.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000377587800011 Publication Date 2016-03-21
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 34 Open Access
  Notes The authors are grateful to Saeedeh Farokhipoor and Tamalika Banerjee for very useful discussions. This work was supported by the Netherlands Organization for Scientific Research NWO-FOM (under FOM-Nano project 10UNST04–2). The Qu-Ant-EM microscope was partly funded by the Hercules fund from the Flemish Government. GOA project “Solarpaint” of the University of Antwerp. The electron microscopy part of the work was supported by funding from the European Research Council under the 7th Framework Program (FP7), ERC Grant No. 246791– COUNTATOMS. Funding from the European Union Council under the 7th Framework Program (FP7) Grant No. NMP3-LA-2010–246102 FOX is acknowledged. The Fund for Scientific Research Flanders is acknowledged for FWO Project No. G.0044.13N. Approved Most recent IF: 12.124
  Call Number c:irua:132641UA @ admin @ c:irua:132641 Serial 4053
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Author Liao, Z; , Green, R.J; Gauquelin, N; Macke, S.; Li, L.; Gonnissen, J; Sutarto, R.; Houwman, E.P.; Zhong, Z.; Van Aert, S.; Verbeeck, J.; Sawatzky, G.A.; Huijben, M.; Koster, G.; Rijnders, G.
  Title Long-Range Domain Structure and Symmetry Engineering by Interfacial Oxygen Octahedral Coupling at Heterostructure Interface Type A1 Journal article
  Year 2016 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 26 Issue 26 Pages 6627-6634
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract In epitaxial thin film systems, the crystal structure and its symmetry deviate from the bulk counterpart due to various mechanisms such as epitaxial strain and interfacial structural coupling, which is accompanyed by a change in their properties. In perovskite materials, the crystal symmetry can be described by rotations of sixfold coordinated transition metal oxygen octahedra, which are found to be altered at interfaces. Here, it is unraveled how the local oxygen octahedral coupling at perovskite heterostructural interfaces strongly influences the domain structure and symmetry of the epitaxial films resulting in design rules to induce various structures in thin films using carefully selected combinations of substrate/buffer/film. Very interestingly it is discovered that these combinations lead to structure changes throughout the full thickness of the film. The results provide a deep insight into understanding the origin of induced structures in a perovskite heterostructure and an intelligent route to achieve unique functional properties.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000384809800010 Publication Date 2016-06-23
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301x ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 23 Open Access
  Notes We thank B. Keimer for valuable discussions. M.H., G.K. and G.R. acknowledge funding from DESCO program of the Dutch Foundation for Fundamental Research on Matter (FOM) with financial support from the Netherlands Organization for Scientific Research (NWO). This work was funded by the European Union Council under the 7th Framework Program (FP7) grant nr NMP3-LA-2010-246102 IFOX. J.V. and S.V.A. acknowledge financial support from the Research Foundation Flanders (FWO, Belgium) through project fundings (G.0044.13N, G.0374.13N, G.0368.15N, G.0369.15N). The Qu-Ant-EM microscope was partly funded by the Hercules fund from the Flemish Government. N.G. acknowledges funding from the European Research Council under the 7th Framework Program (FP7), ERC Starting Grant 278510 VORTEX. N.G., J.G., S.V.A., J.V. acknowledge financial support from the European Union under the Seventh Framework Program under a contract for an Integrated Infrastructure Initiative (Reference No. 312483-ESTEEM2). The Canadian work was supported by NSERC and the Max Planck-UBC Centre for Quantum Materials. Some experiments for this work were performed at the Canadian Light Source, which is funded by the Canada Foundation for Innovation, NSERC, the National Research Council of Canada, the Canadian Institutes of Health Research, the Government of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan.; esteem2jra2; esteem2jra3; ECASJO_; Approved Most recent IF: 12.124
  Call Number EMAT @ emat @ c:irua:144663UA @ admin @ c:irua:144663 Serial 4106
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Author Gonnissen, J.; Batuk, D.; Nataf, G.F.; Jones, L.; Abakumov, A.M.; Van Aert, S.; Schryvers, D.; Salje, E.K.H.
  Title Direct Observation of Ferroelectric Domain Walls in LiNbO3: Wall-Meanders, Kinks, and Local Electric Charges Type A1 Journal article
  Year 2016 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 26 Issue 26 Pages 7599-7604
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Direct observations of the ferroelectric domain boundaries in LiNbO3 are performed using high-resolution high-angle annular dark field scanning transmission electron microscopy imaging, revealing a very narrow width of the domain wall between the 180° domains. The domain walls demonstrate local side-way meandering, which results in inclinations even when the overall wall orientation follows the ferroelectric polarization. These local meanders contain kinks with “head-to-head” and “tail-to-tail” dipolar configurations and are therefore locally charged. The charged meanders are confined to a few cation layers along the polarization direction and are separated by longer stretches of straight domain walls.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000388166700006 Publication Date 2016-09-16
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301X ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 23 Open Access
  Notes J.G. acknowledges the support from the Research Foundation Flanders (FWO, Belgium) through various project fundings (G.0368.15N, G.0369.15N, and G.0374.13N), as well as the financial support from the European Union Seventh Framework Program (FP7/2007–2013) under Grant agreement no. 312483 (ESTEEM2). The authors thank J. Hadermann for useful suggestions on the interpretation of the HAADFSTEM images. E.K.H.S. thanks the EPSRC (EP/K009702/1) and the Leverhulme Trust (EM-2016-004) for support. G.F.N. thanks the National Research Fund, Luxembourg (FNR/P12/4853155/Kreisel) for support.; esteem2_jra2 Approved Most recent IF: 12.124
  Call Number c:irua:135336 c:irua:135336 Serial 4129
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Author Van Aelst, J.; Verboekend, D.; Philippaerts, A.; Nuttens, N.; Kurttepeli, M.; Gobechiya, E.; Haouas, M.; Sree, S.P.; Denayer, J.F.M.; Martens, J.A.; Kirschhock, C.E.A.; Taulelle, F.; Bals, S.; Baron, G.V.; Jacobs, P.A.; Sels, B.F.
  Title Catalyst design by NH4OH treatment of USY zeolite Type A1 Journal article
  Year 2015 Publication Advanced functional materials Abbreviated Journal Adv Funct Mater
  Volume 25 Issue 25 Pages 7130-7144
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Hierarchical zeolites are a class of superior catalysts which couples the intrinsic zeolitic properties to enhanced accessibility and intracrystalline mass transport to and from the active sites. The design of hierarchical USY (Ultra-Stable Y) catalysts is achieved using a sustainable postsynthetic room temperature treatment with mildly alkaline NH4OH ( 0.02(M)) solutions. Starting from a commercial dealuminated USY zeolite (Si/Al = 47), a hierarchical material is obtained by selective and tuneable creation of interconnected and accessible small mesopores (2- 6 nm). In addition, the treatment immediately yields the NH4+ form without the need for additional ion exchange. After NH4OH modification, the crystal morphology is retained, whereas the microporosity and relative crystallinity are decreased. The gradual formation of dense amorphous phases throughout the crystal without significant framework atom leaching rationalizes the very high material yields (>90%). The superior catalytic performance of the developed hierarchical zeolites is demonstrated in the acid-catalyzed isomerization of alpha-pinene and the metal-catalyzed conjugation of safflower oil. Significant improvements in activity and selectivity are attained, as well as a lowered susceptibility to deactivation. The catalytic performance is intimately related to the introduced mesopores, hence enhanced mass transport capacity, and the retained intrinsic zeolitic properties.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Weinheim Editor
  Language Wos 000366503700003 Publication Date 2015-10-30
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN (down) 1616-301x ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.124 Times cited 64 Open Access OpenAccess
  Notes ; The authors thank Dr. M. Thommes and Dr. K. Cychosz for numerous and helpful discussions on the correct evaluation of the Ar isotherms. I. Cuppens is acknowledged for ICP-AES analyses. Research was funded through a PhD grant to J.V.A. of the Agency for Innovation by Science and Technology in Flanders (IWT). D.V. and A.P. acknowledge F.W.O.-Vlaanderen (Research Foundation Flanders) for a postdoctoral fellowship. N.N. thanks the KU Leuven for financial support (FLOF). E.G., C.K., and J.M. acknowledge the long-term structural funding by the Flemish Government (Methusalem). S.B. acknowledges the European Research Council for funding under the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement No. 335078-COLOURATOMS. The authors are grateful for financial support by the Belgian government through Interuniversity Attraction Poles (IAP-PAI). They also thank Oleon NV for supplying safflower oil. ; ecas_Sara Approved Most recent IF: 12.124; 2015 IF: 11.805
  Call Number UA @ lucian @ c:irua:130214 Serial 4147
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