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“A flexible and accurate quantification algorithm for EPXMA based on thin-film element yields”. Schalm O, Janssens K, Spectrochimica acta: part B : atomic spectroscopy 58, 669 (2003). http://doi.org/10.1016/S0584-8547(02)00290-2
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.241
DOI: 10.1016/S0584-8547(02)00290-2
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“A DNA nanotechnology toolbox for mix-and-match biosensor design”. Rutten I, Safdar S, Ven K, Daems D, Spasic D, Lammertyn J, (2019)
Keywords: P3 Proceeding; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A decision support system for preventive conservation : from measurements towards decision making”. Schalm O, Cabal A, Anaf W, Leyva Pernia D, Callier J, Ortega N, The European Physical Journal Plus 134, 74 (2019). http://doi.org/10.1140/EPJP/I2019-12441-5
Abstract: We present a decision-support system that guides heritage guardians in selecting mitigation actions to improve the indoor air quality and thus the preservation conditions of indoor collections in heritage buildings. This contribution shows that it is feasible to build a decision support system dedicated to preventive conservation when the following barriers are overcome: 1) simultaneous measurement of a wide range of environmental parameters in order to detect a larger number of undesired situations; 2) development of an algorithm to perform reproducible indoor air quality assessments; and 3) transformation of the air quality assessment into a graph that can be read intuitively without causing a wide variation of interpretations among stakeholders. An important aspect of the decision support system is that it reduces several sources of uncertainty that hamper reliable indoor air quality assessments. The possibilities of such a system are illustrated with a measurement campaign in a church where a heating system has been installed and used for the first time.
Keywords: A1 Journal article; Engineering sciences. Technology; Antwerp Systems and software Modelling (AnSyMo); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES)
DOI: 10.1140/EPJP/I2019-12441-5
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“A covalently linked dyad based on zinc phthalocyanine and methylpheophorbide &alpha, : synthetic and physicochemical study”. Balashova IO, Tolbin AY, Tarakanov PA, Krot AR, Fedorova K V, Sergeeva IA, Trashin SA, De Wael K, Pushkarev VE, Koifman MO, Ponomarev G V, Macroheterocycles 14, 40 (2021). http://doi.org/10.6060/MHC210338P
Abstract: The first covalently linked conjugate of metal phthalocyaninate and chlorin e(6) derivative has been obtained by transesterification of alpha-ketomethyl ester in methylpheophorbide a with zinc(II) 2-(2-hydroxymethylbenzyloxy)-9(10),16(17),23(24)-tri-tert-butylphthalocyaninate under mild conditions. The dyad exhibits a panchromatic nature revealing both the phthalocyanine and pheophorbide derived bands in the UV-Vis absorption spectrum. The H-1 NMR spectroscopy data combined with theoretical calculations indicate the presence of spatial intramolecular interactions between the phthalocyanine, pheophorbide and spacer fragments of the dyad allowing to forecast its enhanced nonlinear optical properties, as well as the characteristic energy transfer from the excited pheophorbide subunit to the phthalocyanine core. Indeed, when excited in the UV-Vis range, the conjugate shows red fluorescence with the spectral maximum at 686 nm, which is close to the one of the initial zinc phthalocyaninate. Furthermore, the dyad effectively generates singlet oxygen and, in the presence of polyvinylpyrrolidone (PVP) as biocompatible solubilizer, forms stable micellar saline solutions with the particles ranged in size between 40 and 100 nm. These nanoparticles represent promising third-generation photosensitizing systems for application in theranostics.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.6060/MHC210338P
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“A compact μ-XRF spectrometer for (in-situ) analyses of cultural heritage and forensic materials”. Vittiglio G, Bichlmeier S, Klinger P, Heckel J, Fuzhong W, Vincze L, Janssens K, Engström P, Rindby A, Dietrich K, Jembrih-Simbürger D, Schreiner M, Denis D, Lakdar A, Lamotte A, Nuclear instruments and methods in physics research B 213, 693 (2004)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A chemical investigation of altered jade art objects”. Aerts A, Janssens K, Adams F, Orientations , 79 (1995)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A chemical investigation of altered Chinese jade art objects”. Aerts A, Janssens K, Adams F page 170 (1997).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A characterisation of the surface properties of an ultra fine fly ash (UFFA) used in the polymer industry”. Potgieter-Vermaak SS, Potgieter JH, Kruger RA, Spolnik Z, Van Grieken R, Fuel 84, 2295 (2005). http://doi.org/10.1016/J.FUEL.2005.05.013
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/J.FUEL.2005.05.013
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“A case study of ships forming and not forming tracks in moderately polluted clouds”. Noone KJ, Öström E, Ferek RJ, Garrett T, Hobbs PV, Johnson DW, Taylor JP, Russell LM, Flagan RC, Seinfeld JH, O'Dowd CD, Smith MH, Durkee PA, Nielsen K, Hudson JG, Pockalny RA, de Bock L, Van Grieken RE, Gasparovic RF, Brooks I, Journal of the atmospheric sciences 57, 2729 (2000). http://doi.org/10.1175/1520-0469(2000)057<2729:ACSOSF>2.0.CO;2
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1175/1520-0469(2000)057<2729:ACSOSF>2.0.CO;2
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“A case study of ship track formation in a polluted marine boundary layer”. Noone KJ, Johnson DW, Taylor JP, Ferek RJ, Garrett T, Hobbs PV, Durkee PA, Nielsen K, Öström E, O'Dowd CD, Smith MH, Russell LM, Flagan RC, Seinfeld JH, de Bock L, Van Grieken RE, Hudson JG, Brooks I, Gasparovic RF, Pockalny RA, Journal of the atmospheric sciences 57, 2748 (2000). http://doi.org/10.1175/1520-0469(2000)057<2748:ACSOST>2.0.CO;2
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1175/1520-0469(2000)057<2748:ACSOST>2.0.CO;2
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“A case study of high-temperature corrosion in rotary cement kilns”. Potgieter JH, Godoi RHM, Van Grieken R, Journal of the South African Institute of Mining and Metallurgy 104, 603 (2004)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A brief history of 50 years of ICXOM”. Janssens K, , 1 (2010)
Abstract: The ICXOM series of meetings began in 1956 and for over 50 years have been conferences devoted to the topic of “X-ray microanalysis”, both for those interested in developing instrumentation and methods of analysis and for scientists mainly interested in using X-ray micro-analysers for investigations of an applied nature. This contribution surveys the ICXOM series origins, its development and trends over the years.
Keywords: P1 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A biosensor fabricated by incorporation of a redox mediator into a carbon nanotube/nafion composite for tyrosinase immobilization : detection of matairesinol, an endocrine disruptor”. Rather JA, Pilehvar S, De Wael K, The analyst 238, 204 (2013). http://doi.org/10.1039/C2AN35959F
Abstract: An electrochemical matairesinol biosensor was fabricated by immobilizing tyrosinase on a poly(thionine)/nafion/multi-walled carbon nanotube composite film. A polymeric film of the redox dye thionine enables the stable immobilization of tyrosinase while acting as a mediator for the enzymatic process has been incorporated into the carbon nanotube/nafion composite film. The immobilization method is based on crosslinking of the tyrosinase layer with an electropolymerized film of poly(thionine). The good homogenization of the electron conductor CNTs in the integrated films provides the possibility of a three-dimensional electron conductive network. The biosensor was characterized by electrochemical impedance spectroscopy and electrochemical characterization. The composite electrode exhibits catalytic activity, high sensitivity, stability and is applicable over a wide range of concentrations from 180 nM to 4.33 μM with a detection limit (LOD) of 37 nM. The obtained results suggest that the developed sensor can be successfully used for the determination of phenolic endocrine disruptors over a concentration range covering their environmental levels.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.885
Times cited: 23
DOI: 10.1039/C2AN35959F
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“A Benzocaine‐Induced Local Near‐Surface pH Effect: Influence on the Accuracy of Voltammetric Cocaine Detection”. de Jong M, Sleegers N, Schram J, Daems D, Florea A, De Wael K, Analysis &, Sensing , anse.202000012 (2020). http://doi.org/10.1002/anse.202000012
Abstract: This work reports on a local induced near-surface pH effect (pHS), due to the presence of one analyte, leading to an influence or even suppression of redox signals of a second analyte present in solution. This concept and its impact on voltammetric sensing is illustrated by focusing on the detection of cocaine in the presence of the common adulterant benzocaine. An in-depth study on the occurring interference mechanism and why it occurs for benzocaine specifically and not for other adulterants was performed through the use of multiple electrochemical strategies. It was concluded that the potential shift and loss of intensity of the squarewave voltammetric cocaine signal in the presence of benzocaine was caused by a local pHS effect. A cathodic pretreatment strategy was developed to nonetheless allow accurate cocaine detection. The gathered insights are useful to explain unidentified phenomena involving compounds with properties similar to benzocaine in voltammetric electroanalysis.
Keywords: A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/anse.202000012
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“3D extension of the Monte Carlo code MCSHAPE for photon-matter interactions in the heterogeneous media”. Scot V, Fernandez JE, Vincze L, Janssens K, Nuclear instruments &, methods in physics research section B-Beam interactions with materiala and atoms 263, 204 (2007). http://doi.org/10.1016/J.NIMB.2007.04.205
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Times cited: 15
DOI: 10.1016/J.NIMB.2007.04.205
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“2θ-resolution obtainable during – XRPD experiments at Beamline L”. de Nolf W, Jaroszewicz J, Janssens K, Falkenberg G page 1655 (2008).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“2D X-ray and FTIR micro-analysis of the degradation of cadmium yellow pigment in paintings of Henri Matisse”. Pouyet E, Cotte M, Fayard B, Salome M, Meirer F, Mehta A, Uffelman ES, Hull A, Vanmeert F, Kieffer J, Burghammer M, Janssens K, Sette F, Mass J, Applied physics A : materials science &, processing 121, 967 (2015). http://doi.org/10.1007/S00339-015-9239-4
Abstract: The chemical and physical alterations of cadmium yellow (CdS) paints in Henri Matisse's The Joy of Life (1905-1906, The Barnes Foundation) have been recognized since 2006, when a survey by portable X-ray fluorescence identified this pigment in all altered regions of the monumental painting. This alteration is visible as fading, discoloration, chalking, flaking, and spalling of several regions of light to medium yellow paint. Since that time, synchrotron radiation-based techniques including elemental and spectroscopic imaging, as well as X-ray scattering have been employed to locate and identify the alteration products observed in this and related works by Henri Matisse. This information is necessary to formulate one or multiple mechanisms for degradation of Matisse's paints from this period, and thus ensure proper environmental conditions for the storage and the display of his works. This paper focuses on 2D full-field X-ray Near Edge Structure imaging, 2D micro-X-ray Diffraction, X-ray Fluorescence, and Fourier Transform Infra-red imaging of the altered paint layers to address one of the long-standing questions about cadmium yellow alteration-the roles of cadmium carbonates and cadmium sulphates found in the altered paint layers. These compounds have often been assumed to be photo-oxidation products, but could also be residual starting reagents from an indirect wet process synthesis of CdS. The data presented here allow identifying and mapping the location of cadmium carbonates, cadmium chlorides, cadmium oxalates, cadmium sulphates, and cadmium sulphides in thin sections of altered cadmium yellow paints from The Joy of Life and Matisse's Flower Piece (1906, The Barnes Foundation). Distribution of various cadmium compounds confirms that cadmium carbonates and sulphates are photo-degradation products in The Joy of Life, whereas in Flower Piece, cadmium carbonates appear to have been a [(partially) unreacted] starting reagent for the yellow paint, a role previously suggested in other altered yellow paints.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/S00339-015-9239-4
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“2014 Award for best referee of X-Ray Spectrometry”. Van Grieken R, X-ray spectrometry 43, 311 (2014). http://doi.org/10.1002/XRS.2564
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2564
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“2,2′-Diaminodiethylamine cellulose powder for trace metal preconcentrations from water”. Reggers C, Van Grieken R, Fresenius' Zeitschrift für analytische Chemie 317, 520 (1984). http://doi.org/10.1007/BF00511918
Abstract: Cellulose powder with 2,2′-diaminodiethylamine (DEN) functional groups exhibits efficient complexation of transition metal cations. Collection yields above 85 % are obtained up to a chelation capacity of 1.5 meq per gram. Since a good collection is obtained for a pH up from 5, no pH adjustments have to be made for natural water samples. The cellulose-DEN powder is insensitive to abundant substances like alkali and alkaline earth ions, and humic matter. Some cations can be eluted efficiently in a small volume of HNO3. Blank concentration levels from the cellulose-DEN powder are reported.
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF00511918
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Caen J, Schalm O, Janssens K (2009) 15th century stained-glass windows in the former County of Flanders : a historical and chemical study related to recent conservation campaigns. 459–466
Keywords: P2 Proceeding; Engineering sciences. Technology; History; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“In vitro validation of a mobile Raman-XRF micro-analytical instrument's capabilities on the diagnosis of Byzantine icons”. Andrikopoulos KS, Daniilia S, Roussel B, Janssens K, Journal of Raman spectroscopy 37, 1026 (2006). http://doi.org/10.1002/JRS.1612
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 2.969
Times cited: 53
DOI: 10.1002/JRS.1612
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“(Electro)sensing of phenicol antibiotics : a review”. Pilehvar S, Gielkens K, Trashin SA, Dardenne F, Blust R, De Wael K, Critical reviews in food science and nutrition 56, 2416 (2016). http://doi.org/10.1080/10408398.2013.845140
Abstract: The presence of residues from frequent antibiotic use in animal feed can cause serious health risks by contaminating products for human consumption such as meat and milk. The present article gives an overview of the electrochemical methods developed for the detection of phenicol antibiotic residues (chloramphenicol, thiamphenicol, and florfenicol) in different kinds of foodstuffs. Electrochemical sensors based on different biomolecules and nanomaterials are described. The detection limit of various developed methods with their advantages and disadvantage will be highlighted.
Keywords: A1 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 6.077
Times cited: 13
DOI: 10.1080/10408398.2013.845140
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