“Sub-part-per-billion determination of total dissolved selenium and selenite in environmental waters by X-ray fluorescence spectrometry”. Robberecht HJ, Van Grieken RE, Analytical chemistry 52, 449 (1980). http://doi.org/10.1021/AC50053A017
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1021/AC50053A017
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“Synergistic exposure of return-sludge to anaerobic starvation, sulfide and free ammonia to suppress nitrite oxidizing bacteria”. Seuntjens D, Van Tendeloo M, Chatzigiannidou I, Carvajal-Arroyo JM, Vandendriessche S, Vlaeminck SE, Boon N, Environmental science and technology 52, 8725 (2018). http://doi.org/10.1021/ACS.EST.7B06591
Abstract: A key step toward energy-positive sewage treatment is the development of mainstream partial nitritation/anammox, a nitrogen removal technology where aerobic ammonium-oxidizing bacteria (AerAOB) are desired, while nitrite-oxidizing bacteria (NOB) are not. To suppress NOB, a novel return-sludge treatment was investigated. Single and combined effects of sulfide (0-600 mg S L-1), anaerobic starvation (0-8 days), and a free ammonia (FA) shock (30 mg FA-N L-1 for 1 h) were tested for immediate effects and long-term recovery. AerAOB and NOB were inhibited immediately and proportionally by sulfide, with AerAOB better coping with the inhibition, while the short FA shock and anaerobic starvation had minor effects. Combinatory effects inhibited AerAOB and NOB more strongly. A combined treatment of sulfide (150 mg S L-1), 2 days of anaerobic starvation, and FA shock (30 mg FA-N L-1) inhibited AerAOB 14% more strongly compared to sulfide addition alone, while the AerAOB/NOB activity ratio remained constant. Despite no positive change being observed in the immediate-stress response, AerAOB recovered much faster than NOB, with a nitrite accumulation ratio (effluent nitrite on nitrite + nitrate) peak of 50% after 12 days. Studying long-term recovery is therefore crucial for design of an optimal NOB-suppression treatment, while applying combined stressors regularly may lead toward practical implementation.
Keywords: A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.1021/ACS.EST.7B06591
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“EXRS2022 : the 2022 edition of the European X-ray Spectrometry conference, held in Bruges, Belgium”. Janssens K, X-ray spectrometry 52, 276 (2023). http://doi.org/10.1002/XRS.3386
Keywords: Editorial; Antwerp X-ray Imaging and Spectroscopy (AXIS)
Impact Factor: 1.2
DOI: 10.1002/XRS.3386
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“L'analyse des eaux géothermales par spectrométrie de masse à, étincelles”. Vandelannoote R, Blommaert W, van Grieken R, Gijbels R, Spectra 2000: la revue de l'instrumentation 53, 66 (1979)
Keywords: A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Conserving African biosphere reserves : a workshop on the valuation of ecosystem services in Man and the Biosphere Reserves”. Janssens de Bisthoven L, Rochette A-J, Verheyen E, Akpona TJ-D, Verbist B, Vanderhaegen K, Naturinda Z, Van Passel S, Berihun D, Munishi L, Hugé, J, Oryx 53, 609 (2019). http://doi.org/10.1017/S003060531900070X
Keywords: A1 Journal article; Engineering Management (ENM); Evolutionary ecology group (EVECO)
Impact Factor: 2.191
DOI: 10.1017/S003060531900070X
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“Calculation of the spectral line profile broadening parameter in graphite furnace atomic absorption spectrometry”. Bencs L, Canadian Journal Of Analytical Sciences And Spectroscopy 53, 52 (2008)
Abstract: A polynomial approach is applied for a number of data from the Posener-tables to calculate the values of the intensity distribution function of atomic absorption lines – H(a, 0.726a) – at the tabulated damping-parameter values with an error not worse than 0.044 %. For the resultant H(a, 0.726a) data, the ninth and sixth order polynomials can be fitted according to the damping parameter range of 0-2, and 2-10, respectively, which results in a minimal error of approximation. The derived functions are simply applicable to the calculation of any H(a, 0.726a) value belonging to a damping-parameter of any arbitrarily selected spectral line, implying the influence of Doppler- and Lorentz-broadening. The overall error of the described method is lower than 0.4 %.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Localised and non-destructive analysis of metallic artefacts from ancient Egypt by means of a compact μ-XRF instrument”. Vittiglio G, Janssens K, Adams F, Oost A, Spectrochimica acta: part B : atomic spectroscopy 54, 1697 (1999). http://doi.org/10.1016/S0584-8547(99)00100-7
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.241
DOI: 10.1016/S0584-8547(99)00100-7
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“Catalytic Nox reduction with simultaneous dioxin and furan oxidation”. Goemans M, Clarysse P, Joannès J, de Clercq P, Lenaerts S, Matthys K, Boels K, Chemosphere 54, 1357 (2004). http://doi.org/10.1016/S0045-6535(03)00255-8
Abstract: The engineering, construction, performance and running costs of a catalytic flue gas cleaning component in the low dust area of a municipal waste incinerator is discussed. For this purpose, the case study of a Flemish incineration plant is presented, covering the history, the design procedure of the catalyst, relevant process data and the financial aspects. A reliable PCDD/F-destruction by means of oxidation by the catalyst to typical values of 0.001 ng TEQ/Nm3 has been demonstrated. At the same time, NOx− and CO-emissions are reduced by 90% and 20% to about 50 mg/Nm3 and below 10 mg/Nm3, respectively.
Keywords: A1 Journal article
Impact Factor: 4.208
DOI: 10.1016/S0045-6535(03)00255-8
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“Plasma propagation in a single bead DBD reactor at different dielectric constants : insights from fluid modelling”. Wang W, Butterworth T, Bogaerts A, Journal Of Physics D-Applied Physics 54, 214004 (2021). http://doi.org/10.1088/1361-6463/ABE8FF
Abstract: Packed bed dielectric barrier discharge (PB-DBD) plasma reactors are very promising for various plasma catalysis applications, but the exact mechanisms of plasma-catalyst interaction are far from understood, because the plasma discharge and catalyst/packing properties are mutually dependent. To better understand the effect of packing dielectric material on the electrical plasma properties, we study here a single bead DBD plasma reactor operating in dry air, with beads of different dielectric constant and for different applied voltages, by means of fluid modelling validated by optical imaging experiments. Our study reveals that the plasma in the single bead DBD reactor can manifest itself in two different modalities, i.e. (a) polar discharges at the bead poles in contact with the electrodes, and (b) a streamer discharge caused by surface ionization waves, which bridges the gas gap. Beads with high dielectric constant result in localised electric field enhancement and hence yield a reduction of the applied voltage required for plasma production. At low applied voltage, the discharge appears as polar discharges between the bead and the electrodes, and upon higher voltage it undergoes a transition into a bridging streamer discharge. The transition voltage to the streamer mode rises for beads with higher dielectric constant. These observations are important for plasma catalysis applications. A higher dielectric constant yields a higher electric field and thus higher average electron energy and density, giving rise to more reactive species, but it also yields a confined discharge near the contact points of packing beads, limiting the interaction area between the catalyst and the active plasma species. In addition, our model reveals that the dielectric bead behaves as a capacitor and traps charges, which can explain the significant occurrence of partial discharging in PB-DBDs and non-parallelogram shaped Lissajous plots. Hence, equivalent circuit modelling of PB-DBDs should take into account the role of packing beads in charge trapping as a capacitor.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 2.588
DOI: 10.1088/1361-6463/ABE8FF
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“Prediction of two-dimensional bismuth-based chalcogenides Bi₂X₃(X = S, Se, Te) monolayers with orthorhombic structure : a first-principles study”. Bafekry A, Faraji M, Fadlallah MM, Jappor HR, Hieu NN, Ghergherehchi M, Feghhi SAH, Gogova D, Journal Of Physics D-Applied Physics 54, 395103 (2021). http://doi.org/10.1088/1361-6463/AC118C
Abstract: First-principles calculation is a very powerful tool for discovery and design of novel two-dimensional materials with unique properties needed for the next generation technology. Motivated by the successful preparation of Bi2S3 nanosheets with orthorhombic structure in the last year, herein we gain a deep theoretical insight into the crystal structure, stability, electronic and optical properties of Bi2X3 (X = S, Se, Te) monolayers of orthorhombic phase employing the first-principles calculations. The Molecular dynamics study, phonon spectra, criteria for elastic stability, and cohesive energy results confirm the desired stability of the Bi2X3 monolayers. From S, to Se and Te, the work function value as well as stability of the systems decrease due to the decline in electronegativity. Mechanical properties study reveals that Bi2X3 monolayers have brittle nature. The electronic bandgap values of Bi2S3, Bi2Se3 and Bi2Te3 monolayers are predicted by the HSE06 functional to be 2.05, 1.20 and 1.16 eV, respectively. By assessing the optical properties, it has been found that Bi2X3 monolayers can absorb ultraviolet light. The high in-plane optical anisotropy offers an additional degree of freedom in the design of optical devices. The properties revealed in our survey will stimulate and inspire the search for new approaches of orthorhombic Bi2X3 (X = S, Se, Te) monolayers synthesis and properties manipulation for fabrication of novel nanoelectronic and optoelectronic devices.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.588
DOI: 10.1088/1361-6463/AC118C
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“Ellipticalness index : a simple measure of the complexity of oval leaf shape”. Li Y, Quinn BK, Niinemets Ü, Schrader J, Gielis J, Liu M, Shi P, Pakistan journal of botany : An official publication of pakistan botanical society 54, 1 (2022). http://doi.org/10.30848/PJB2022-6(44)
Abstract: Plants have diverse leaf shapes that have evolved to adapt to the environments they have experienced over their evolutionary history. Leaf shape and leaf size can greatly influence the growth rate, competitive ability, and productivity of plants. However, researchers have long struggled to decide how to properly quantify the complexity of leaf shape. Prior studies recommended the leaf roundness index (RI = 4πA/P2) or dissection index (DI = ), where P is leaf perimeter and A is leaf area. However, these two indices merely measure the extent of the deviation of leaf shape from a circle, which is usually invalid as leaves are seldom circular. In this study, we proposed a simple measure, named the ellipticalness index (EI), for quantifying the complexity of leaf shape based on the hypothesis that the shape of any oval leaf can be regarded as a variation from a standard ellipse. 2220 leaves from nine species of Magnoliaceae were sampled to check the validity of the EI. We also tested the validity of the Montgomery equation (ME), which assumes a proportional relationship between leaf area and the product of leaf length and width, because the EI actually comes from the proportionality coefficient of the ME. We also compared the ME with five other models of leaf area. The ME was found to be the best model for calculating leaf area based on consideration of the trade-off between model fit vs. complexity, which strongly supported the robustness of the EI for describing oval leaf shape. The new index can account for both leaf shape and size, and we conclude that it is a promising method for quantifying and comparing oval leaf shapes across species in future studies.
Keywords: A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL)
Impact Factor: 1.2
DOI: 10.30848/PJB2022-6(44)
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“Determination of silicon in organic matrices with grazing-emission X-ray fluorescence spectrometry”. Claes M, van Dyck K, Deelstra H, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 54, 1517 (1999). http://doi.org/10.1016/S0584-8547(99)00098-1
Abstract: The potential of a prototype grazing-emission X-ray fluorescence spectrometer for reliable analysis of sample solutions, obtained by pressurized microwave oven digestion of Si-spiked organic and biological materials, was investigated as part of an inter-laboratory study. The fact that this grazing-emission technique is based on the total reflection phenomenon and wavelength-dispersive detection, gives it the benefit to determine light elements in a sensitive way. Results of the determination of silicon in pork liver, cellulose, urine, serum, spinach, beer, mineral water and horsetail (dry plant extract) samples are presented. Some of the results are compared with those obtained with other analytical techniques. The study proved that determination of silicon traces in biological matrices represents an extremely difficult task, however, measurements of silicon are achieved with acceptable precision. The most important problems still arise when sample pre-treatment is needed prior to analysis. (C) 1999 Elsevier Science B.V. All rights reserved.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(99)00098-1
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“Enhancement of electron-induced X-ray intensity for single particles under grazing-exit conditions”. Tsuji K, Spolnik Z, Wagatsuma K, Zhang J, Van Grieken RE, Spectrochimica acta: part B : atomic spectroscopy 54, 1243 (1999). http://doi.org/10.1016/S0584-8547(99)00073-7
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(99)00073-7
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“Enhancement of X-ray fluorescence intensity from an ultra-thin sandwiched layer at grazing-emission angles”. Tsuji K, Takenaka H, Wagatsuma K, de Bokx PK, Van Grieken RE, Spectrochimica acta: part B : atomic spectroscopy 54, 1881 (1999). http://doi.org/10.1016/S0584-8547(99)00143-3
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(99)00143-3
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“Laser microprobe mass spectrometry : 1 : basic principles and performance characteristics”. Denoyer E, Van Grieken R, Adams F, Ntausch DFS, Analytical chemistry 54, 26a (1982). http://doi.org/10.1021/AC00238A722
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1021/AC00238A722
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“Quantification in grazing-emission X-ray fluorescence spectrometry”. Spolnik ZM, Claes M, Van Grieken RE, de Bokx PK, Urbach HP, Spectrochimica acta: part B : atomic spectroscopy 54, 1525 (1999). http://doi.org/10.1016/S0584-8547(99)00051-8
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(99)00051-8
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“Interpretation and use of inter-element correlation graphs obtained by scanning X-ray fluorescence micro-beam spectrometry from individual particles: part 1: theory”. Somogyi A, Janssens K, Vincze L, Vekemans B, Rindby A, Adams F, Spectrochimica acta: part B : atomic spectroscopy 55, 75 (2000). http://doi.org/10.1016/S0584-8547(99)00172-X
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.241
DOI: 10.1016/S0584-8547(99)00172-X
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“Interpretation and use of inter-element correlation graphs obtained by scanning X-ray fluorescence micro-beam spectrometry from individual particles: part 2: application”. Somogyi A, Janssens K, Vincze L, Vekemans B, Rindby A, Adams F, Spectrochimica acta: part B : atomic spectroscopy 55, 1039 (2000). http://doi.org/10.1016/S0584-8547(00)00220-2
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.241
DOI: 10.1016/S0584-8547(00)00220-2
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“The use of synchrotron micro-XRF for characterisation of the micro-heterogeneity of low-Z reference materials”. Kempenaers L, Vincze L, Janssens K, Spectrochimica acta: part B : atomic spectroscopy 55, 651 (2000). http://doi.org/10.1016/S0584-8547(00)00207-X
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Impact Factor: 3.241
DOI: 10.1016/S0584-8547(00)00207-X
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“Urban heat stress mitigation potential of green walls: A review”. Koch K, Ysebaert T, Denys S, Samson R, Urban Forestry &, Urban Greening 55, 126843 (2020). http://doi.org/10.1016/J.UFUG.2020.126843
Abstract: Cities with resilience to climate change appear to be a vision of the future, but are inevitable to ensure the quality of life for citizens and to avoid an increase in civilian mortality. Urban green infrastructure (UGI), with the focus on vertical green, poses a beneficial mitigation and adaptation strategy for challenges such as climate change through cooling effects on building and street level. This review article explores recent literature regarding this considerable topic and investigates how green walls can be applied to mitigate this problem. Summary tables (see additional information) and figures are presented that can be used by policy makers and researchers to make informed decisions when installing green walls in built-up environments. At last, knowledge gaps are uncovered that need further investigation to exploit the benefits at its best.
Keywords: A1 Journal article; Engineering sciences. Technology; Art; Sustainable Energy, Air and Water Technology (DuEL)
Impact Factor: 6.4
DOI: 10.1016/J.UFUG.2020.126843
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“Application of energy dispersive X-ray spectrometry for quantitative evaluation of sorption phenomena at solid-liquid interfaces”. Szalóki I, Varga K, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 55, 1031 (2000). http://doi.org/10.1016/S0584-8547(00)00175-0
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(00)00175-0
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“Comparison of grazing-exit particle-induced X-ray emission with other related methods”. Tsuji K, Huisman M, Spolnik Z, Wagatsuma K, Mori Y, Van Grieken RE, Vis RD, Spectrochimica acta: part B : atomic spectroscopy 55, 1009 (2000). http://doi.org/10.1016/S0584-8547(00)00148-8
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(00)00148-8
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“Electrochemical in situ pH control enables chemical-free full urine nitrification with concomitant nitrate extraction”. De Paepe J, Clauwaert P, Gritti MC, Ganigue R, Sas B, Vlaeminck SE, Rabaey K, Environmental Science &, Technology 55, 8287 (2021). http://doi.org/10.1021/ACS.EST.1C00041
Abstract: Urine is a valuable resource for nutrient recovery. Stabilization is, however, recommended to prevent urea hydrolysis and the associated risk for ammonia volatilization, uncontrolled precipitation, and malodor. This can be achieved by alkalinization and subsequent biological conversion of urea and ammonia into nitrate (nitrification) and organics into CO2. Yet, without pH control, the extent of nitrification is limited as a result of insufficient alkalinity. This study explored the feasibility of an integrated electrochemical cell to obtain on-demand hydroxide production through water reduction at the cathode, compensating for the acidification caused by nitritation, thereby enabling full nitrification. To deal with the inherent variability of the urine influent composition and bioprocess, the electrochemical cell was steered via a controller, modulating the current based on the pH in the bioreactor. This provided a reliable and innovative alternative to base addition, enabling full nitrification while avoiding the use of chemicals, the logistics associated with base storage and dosing, and the associated increase in salinity. Moreover, the electrochemical cell could be used as an in situ extraction and concentration technology, yielding an acidic concentrated nitrate-rich stream. The make-up of the end product could be tailored by tweaking the process configuration, offering versatility for applications on Earth and in space.
Keywords: A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL)
Impact Factor: 6.198
DOI: 10.1021/ACS.EST.1C00041
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“Influence of spark generator parameters in the analysis of graphite-electrodes by spark source-mass spectrometry”. Vos L, Van Grieken R, International journal of mass spectrometry and ion processes 55, 233 (1984). http://doi.org/10.1016/0168-1176(84)87087-1
Abstract: Spark source mass spectrometric analyses of doped carbon samples were performed at different pulse lengths, pulse frequencies and breakdown voltages. The pulse length and pulse frequencies had no influence on the analysis. The relation between breakdown voltage, spark gap and sample matrix was determined. With increasing breakdown voltage, the abundance of the multiply charged ions was found to decrease, whereas the abundance of the cluster ions increased. The breakdown voltage was also found to affect the absolute and relative intensities of different elements in different manners. Interpretation of these results led to some new considerations on the phenomena in a spark discharge.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/0168-1176(84)87087-1
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“Operational strategies to selectively produce purple bacteria for microbial protein in raceway reactors”. Alloul A, Cerruti M, Adamczyk D, Weissbrodt DG, Vlaeminck SE, Environmental Science &, Technology 55, 8278 (2021). http://doi.org/10.1021/ACS.EST.0C08204
Abstract: Purple non-sulfur bacteria (PNSB) show potential for microbial protein production on wastewater as animal feed. They offer good selectivity (i.e., low microbial diversity and high abundance of one species) when grown anaerobically in the light. However, the cost of closed anaerobic photobioreactors is prohibitive for protein production. Although open raceway reactors are cheaper, their feasibility to selectively grow PNSB is thus far unexplored. This study developed operational strategies to boost PNSB abundance in the biomass of a raceway reactor fed with volatile fatty acids. For a flask reactor run at a 2 day sludge retention time (SRT), matching the chemical oxygen demand (COD) loading rate to the removal rate in the light period prevented substrate availability during the dark period and increased the PNSB abundance from 50-67 to 88-94%. A raceway reactor run at a 2 day SRT showed an increased PNSB abundance from 14 to 56% when oxygen supply was reduced (no stirring at night). The best performance was achieved at the highest surface-to-volume ratio (10 m(2) m(-3) increased light availability) showing productivities up to 0.2 g protein L-1 day(-1) and a PNSB abundance of 78%. This study pioneered in PNSB-based microbial protein production in raceway reactors, yielding high selectivity while avoiding the combined availability of oxygen, COD, and darkness.
Keywords: A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL)
Impact Factor: 6.198
DOI: 10.1021/ACS.EST.0C08204
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“Quantitative characterization of individual aerosol particles by thin-window electron probe microanalysis combined with iterative simulation”. Szalóki I, Osán J, Ro C-U, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 55, 1017 (2000). http://doi.org/10.1016/S0584-8547(00)00174-9
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(00)00174-9
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“Can endohedral transition metals enhance hydrogen storage in carbon nanotubes?”.Khalilov U, Uljayev U, Mehmonov K, Nematollahi P, Yusupov M, Neyts EC, Neyts EC, International journal of hydrogen energy 55, 640 (2024). http://doi.org/10.1016/J.IJHYDENE.2023.11.195
Abstract: The safe and efficient use of hydrogen energy, which is in high demand worldwide today, requires efficient hydrogen storage. Despite significant advances in hydrogen storage using carbon-based nanomaterials, including carbon nanotubes (CNTs), efforts to substantially increase the storage capacity remain less effective. In this work, we demonstrate the effect of endohedral transition metal atoms on the hydrogen storage capacity of CNTs using reactive molecular dynamics simulations. We find that an increase in the volume fraction of endohedral nickel atoms leads to an increase in the concentration of physisorbed hydrogen molecules around single-walled CNTs (SWNTs) by approximately 1.6 times compared to pure SWNTs. The obtained results provide insight into the underlying mechanisms of how endohedral transition metal atoms enhance the hydrogen storage ability of SWNTs under nearly ambient conditions.
Keywords: A1 Journal article; Engineering sciences. Technology; Modelling and Simulation in Chemistry (MOSAIC); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 7.2
DOI: 10.1016/J.IJHYDENE.2023.11.195
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“Synchrotron XRF analysis identifies cerium accumulation colocalized with pharyngeal deformities in CeO₂, NP-exposed caenorhabditis elegans”. Rossbach LM, Brede DA, Nuyts G, Cagno S, Olsson RMS, Oughton DH, Falkenberg G, Janssens K, Lind OC, Environmental science and technology 56, 5081 (2022). http://doi.org/10.1021/ACS.EST.1C08509
Abstract: A combination of synchrotron radiation-based elementalimaging, in vivo redox status analysis, histology, and toxic responses was usedto investigate the uptake, biodistribution, and adverse effects of Cenanoparticles (CeO2NP; 10 nm; 0.5-34.96 mg Ce L-1) or Ce(NO3)3(2.3-26 mg Ce L-1)inCaenorhabditis elegans. Elemental mapping of theexposed nematodes revealed Ce uptake in the alimentary canal prior todepuration. Retention of CeO2NPs was low compared to that of Ce(NO3)3in depurated individuals. X-rayfluorescence (XRF) mapping showed that Cetranslocation was confined to the pharyngeal valve and foregut. Ce(NO3)3exposure significantly decreased growth, fertility, and reproduction, causedslightly reduced fecundity. XRF mapping and histological analysis revealedsevere tissue deformities colocalized with retained Ce surrounding thepharyngeal valve. Both forms of Ce activated the sod-1 antioxidant defense,particularly in the pharynx, whereas no significant effects on the cellular redox balance were identified. The CeO2NP-induceddeformities did not appear to impair the pharyngeal function or feeding ability as growth effects were restricted to Ce(NO3)3exposure. The results demonstrate the utility of integrated submicron-resolution SR-based XRF elemental mapping of tissue-specificdistribution and adverse effect analysis to obtain robust toxicological evaluations of metal-containing contaminants.
Keywords: A1 Journal article; Antwerp X-ray Imaging and Spectroscopy (AXIS)
Impact Factor: 11.4
DOI: 10.1021/ACS.EST.1C08509
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“Atomic number correction in electron probe X-ray microanalysis of curved samples and particles”. Markowicz AA, Van Grieken RE, Analytical chemistry 56, 2798 (1984). http://doi.org/10.1021/AC00278A036
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1021/AC00278A036
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“Characterization of aerosol-associated lead by DPASV and LAMMA”. Wonders JHAM, Houweling S, de Bont FAJ, van Leeuwen HP, Eeckhaoudt SM, Van Grieken R, International journal of environmental analytical chemistry 56, 193 (1994). http://doi.org/10.1080/03067319408034100
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1080/03067319408034100
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