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Nie J, Islam T, Roy SC, Li D, Amin R, Taylor-Pashow K, Zhu X, Feng R, Chernikov R, Pramanik A, Han FX, Kumbhar AS, Islam SM. Amorphous K-Co-Mo-S x Chalcogel: A Synergy of Surface Sorption and Ion-Exchange. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400679. [PMID: 38488771 DOI: 10.1002/smll.202400679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/01/2024] [Indexed: 08/09/2024]
Abstract
Chalcogel represents a unique class of meso- to macroporous nanomaterials that offer applications in energy and environmental pursuits. Here, the synthesis of an ion-exchangeable amorphous chalcogel using a nominal composition of K2CoMo2S10 (KCMS) at room temperature is reported. Synchrotron X-ray pair distribution function (PDF), X-ray absorption near-edge structure (XANES), and extended X-ray absorption fine structure (EXAFS) reveal a plausible local structure of KCMS gel consisting of Mo5+ 2 and Mo4+ 3 clusters in the vicinity of di/polysulfides which are covalently linked by Co2+ ions. The ionically bound K+ ions remain in the percolating pores of the Co-Mo-S covalent network. XANES of Co K-edge shows multiple electronic transitions, including quadrupole (1s→3d), shakedown (1s→4p + MLCT), and dipole allowed 1s→4p transitions. Remarkably, despite a lack of regular channels as in some crystalline solids, the amorphous KCMS gel shows ion-exchange properties with UO2 2+ ions. Additionally, it also presents surface sorption via [S∙∙∙∙UO2 2+] covalent interactions. Overall, this study underscores the synthesis of quaternary chalcogels incorporating alkali metals and their potential to advance separation science for cations and oxo-cationic species by integrating a synergy of surface sorption and ion-exchange.
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Affiliation(s)
- Jing Nie
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| | - Taohedul Islam
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| | - Subrata Chandra Roy
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| | - Dien Li
- Savannah River National Laboratory, Aiken, SC, 29808, USA
| | - Ruhul Amin
- Electrification & Energy Infrastructure Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | | | - Xianchun Zhu
- Department of Civil Engineering, Jackson State University, Jackson, MS, 39217, USA
| | - Renfei Feng
- Canadian Light Source, Saskatoon, Saskatchewan, S7N2V3, Canada
| | - Roman Chernikov
- Canadian Light Source, Saskatoon, Saskatchewan, S7N2V3, Canada
| | - Avijit Pramanik
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| | - Fengxiang X Han
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| | - Amar S Kumbhar
- Chapel Hill Analytical and Nanofabrication Laboratory (CHANL) &, Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Saiful M Islam
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
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Morante S, Botticelli S, Chiaraluce R, Consalvi V, La Penna G, Novak L, Pasquo A, Petrosino M, Proux O, Rossi G, Salina G, Stellato F. Metal Ion Binding in Wild-Type and Mutated Frataxin: A Stability Study. Front Mol Biosci 2022; 9:878017. [PMID: 35712353 PMCID: PMC9195147 DOI: 10.3389/fmolb.2022.878017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
This work studies the stability of wild-type frataxin and some of its variants found in cancer tissues upon Co2+ binding. Although the physiologically involved metal ion in the frataxin enzymatic activity is Fe2+, as it is customarily done, Co2+ is most often used in experiments because Fe2+ is extremely unstable owing to the fast oxidation reaction Fe2+ → Fe3+. Protein stability is monitored following the conformational changes induced by Co2+ binding as measured by circular dichroism, fluorescence spectroscopy, and melting temperature measurements. The stability ranking among the wild-type frataxin and its variants obtained in this way is confirmed by a detailed comparative analysis of the XAS spectra of the metal-protein complex at the Co K-edge. In particular, a fit to the EXAFS region of the spectrum allows positively identifying the frataxin acidic ridge as the most likely location of the metal-binding sites. Furthermore, we can explain the surprising feature emerging from a detailed analysis of the XANES region of the spectrum, showing that the longer 81-210 frataxin fragment has a smaller propensity for Co2+ binding than the shorter 90-210 one. This fact is explained by the peculiar role of the N-terminal disordered tail in modulating the protein ability to interact with the metal.
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Affiliation(s)
- S. Morante
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- *Correspondence: S. Morante ,
| | - S. Botticelli
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - R. Chiaraluce
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - V. Consalvi
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - G. La Penna
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- CNR—Istituto di Chimica dei Composti Organometallici, Firenze, Italy
| | - L. Novak
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - A. Pasquo
- ENEA CR Frascati, Diagnostics and Metrology Laboratory FSN-TECFIS-DIM, Frascati, Italy
| | - M. Petrosino
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Fribourg, Switzerland
| | - O. Proux
- Observatoire des Sciences de L’Univers de Grenoble, UAR 832 CNRS, Université Grenoble Alpes, Grenoble, France
| | - G. Rossi
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- Museo Storico della Fisica e Centro Studi e Ricerche E. Fermi, Roma, Italy
| | - G. Salina
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - F. Stellato
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
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Bresson C, Spezia R, Solari PL, Jankowski CK, Den Auwer C. XAS examination of glutathione–cobalt complexes in solution. J Inorg Biochem 2015; 142:126-31. [DOI: 10.1016/j.jinorgbio.2014.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/17/2014] [Accepted: 10/17/2014] [Indexed: 01/09/2023]
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Hummer AA, Rompel A. The use of X-ray absorption and synchrotron based micro-X-ray fluorescence spectroscopy to investigate anti-cancer metal compounds in vivo and in vitro. Metallomics 2013; 5:597-614. [PMID: 23558305 DOI: 10.1039/c3mt20261e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
X-ray absorption spectroscopy (XAS) and micro-synchrotron based X-ray fluorescence (micro-SXRF) are element specific spectroscopic techniques and have been proven to be valuable tools for the investigation of changes in the chemical environment of metal centres. XAS allows the determination of the oxidation state, the coordination motif of the probed element, the identity and the number of adjacent atoms and the absorber-ligand distances. It is further applicable to nearly all types of samples independent of their actual physical state (solid, liquid, gaseous) down to μM concentrations. Micro-SXRF can provide information on the distribution and concentration of multiple elements within a sample simultaneously, allowing for the chemical state of several elements within subcellular compartments to be probed. Modern third generation synchrotrons offer the possibility to investigate the majority of the biologically relevant elements. The biological mode of action of metal-based compounds often involves interactions with target and/or transport molecules. The presence of reducing agents may also give rise to changes in the coordination sphere and/or the oxidation state. XAS and micro-SXRF are ideal techniques for investigating these issues. This tutorial review introduces the use of XAS and micro-SXRF techniques into the field of inorganic medicinal chemistry. The results obtained for platinum, ruthenium, gallium, gold and cobalt compounds within the last few years are presented.
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Affiliation(s)
- Alfred A Hummer
- Institut für Biophysikalische Chemie, Universität Wien, Althanstr. 14, 1090 Wien, Austria
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Bresson C, Chartier F, Ansoborlo E, Ortega R. Analytical tools for speciation in the field of toxicology. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.2013.2046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
The knowledge of the speciation of elements at trace and ultra-trace level, in biological and environmental media is essential to acquire a better understanding of the mechanisms of toxicity, transport and accumulation in which they are involved. Determining the speciation of an element in a given medium is challenging and requires the knowledge of different methodological approaches: the calculation approach and the experimental approach through the use of dedicated analytical and spectroscopic tools. In this framework, this mini-review reports the approaches to investigate the speciation of elements in biological and environmental media as well as the experimental techniques of speciation analysis, illustrated by recent examples. The main analytical and spectroscopic techniques to obtain structural, molecular, elemental and isotopic information are described. A brief overview of separation techniques coupled with spectrometric techniques is given. Imaging and micro-localisation techniques, which aim at determining the in situ spatial distribution of elements and molecules in various solid samples, are also presented. The last part deals with the development of micro-analytical systems, since they open crucial perspectives to speciation analysis for low sample amounts and analysis on field.
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Hummer AA, Rompel A. X-Ray Absorption Spectroscopy. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2013; 93:257-305. [DOI: 10.1016/b978-0-12-416596-0.00008-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Collins RN, Bakkaus E, Carrière M, Khodja H, Proux O, Morel JL, Gouget B. Uptake, localization, and speciation of cobalt in Triticum aestivum L. (wheat) and Lycopersicon esculentum M. (tomato). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:2904-2910. [PMID: 20345097 DOI: 10.1021/es903485h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The root-to-shoot transfer, localization, and chemical speciation of Co were investigated in a monocotyledon (Triticum aestivum L., wheat) and a dicotyledon (Lycopersicon esculentum M., tomato) plant species grown in nutrient solution at low (5 muM) and high (20 muM) Co(II) concentrations. Cobalt was measured in the roots and shoots by inductively coupled plasma-mass spectrometry. X-ray absorption spectroscopy measurements were used to identify the chemical structure of Co within the plants and Co distribution in the leaves was determined by micro-PIXE (particle induced X-ray emission). Although the root-to-shoot transport was higher for tomato plants exposed to excess Co, both plants appeared as excluders. The oxidation state of Co(II) was not transformed by either plant in the roots or shoots and Co appeared to be present as Co(II) in a complex with carboxylate containing organic acids. Cobalt was also essentially located in the vascular system of both plant species indicating that neither responded to Co toxicity via sequestration in epidermal or trichome tissues as has been observed for other metals in metal hyperaccumulating plants.
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Affiliation(s)
- Richard N Collins
- UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
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Levitskaia TG, Morris JE, Creim JA, Woodstock AD, Luders T, Curry TL, Thrall KD. Aminothiol receptors for decorporation of intravenously administered (60)Co in the rat. HEALTH PHYSICS 2010; 98:53-60. [PMID: 19959951 PMCID: PMC2818207 DOI: 10.1097/hp.0b013e3181b9dbbc] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This report provides a comparison of the oral decorporation efficacy of L-glutathione (GSH), L-cysteine (Cys), and a liposomal GSH formulation (ReadiSorb) toward systemic (60)Co to that observed following intravenous administration of GSH and Cys in F344 rats. Aminoacid L-histidine (His) containing no thiol functionality was tested intravenously to compare in vivo efficacy of the aminothiol (GSH, Cys) chelators with that of the aminoimidazole (His) chelator. In these studies, (60)Co was administered to animals by intravenous injection, followed by intravenous or oral gavage doses of a chelator repeated at 24-h intervals for a total of 5 doses. The results suggest that GSH and Cys are potent decorporation agents for (60)Co in the rat model, although the efficacy of treatment depends largely on the systemic availability of the chelator. The intravenous route of administration of GSH or Cys was most effective in reducing tissue (60)Co levels and in increasing excretion of radioactivity compared to control animals. Liposomal encapsulation was found to markedly enhance the oral bioavailability of GSH compared to non-formulated GSH. The oral administration of liposomal GSH reduced (60)Co levels in nearly all tissues by 12-43% compared to that observed for non-formulated GSH. Efficacy of oral Cys was only slightly reduced in comparison with intravenous Cys. Further studies to optimize the dosing regimen in order to maximize decorporation efficiency are warranted.
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Affiliation(s)
- Tatiana G Levitskaia
- Pacific Northwest National Laboratory, PO Box 999, MSIN P7-25, Richland, WA 99352, USA.
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Myers WK, Duesler EN, Tierney DL. Integrated paramagnetic resonance of high-spin Co(II) in axial symmetry: chemical separation of dipolar and contact electron-nuclear couplings. Inorg Chem 2008; 47:6701-10. [PMID: 18605690 DOI: 10.1021/ic800245k] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Integrated paramagnetic resonance, utilizing electron paramagnetic resonance (EPR), NMR, and electron-nuclear double resonance (ENDOR), of a series of cobalt bis-trispyrazolylborates, Co(Tp ( x )) 2, are reported. Systematic substitutions at the ring carbons and on the apical boron provide a unique opportunity to separate through-bond and through-space contributions to the NMR hyperfine shifts for the parent, unsubstituted Tp complex. A simple relationship between the chemical shift difference (delta H - delta Me) and the contact shift of the proton in that position is developed. This approach allows independent extraction of the isotropic hyperfine coupling, A iso, for each proton in the molecule. The Co..H contact coupling energies derived from the NMR, together with the known metrics of the compounds, were used to predict the ENDOR couplings at g perpendicular. Proton ENDOR data is presented that shows good agreement with the NMR-derived model. ENDOR signals from all other magnetic nuclei in the complex ( (14)N, coordinating and noncoordinating, (11)B and (13)C) are also reported.
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Affiliation(s)
- William K Myers
- Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, USA
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Spezia R, Bresson C, Auwer CD, Gaigeot MP. Solvation of Co(III)-Cysteinato Complexes in Water: A DFT-based Molecular Dynamics Study. J Phys Chem B 2008; 112:6490-9. [DOI: 10.1021/jp075774h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Riccardo Spezia
- Laboratoire Analyse et Modelisation pour la Biologie et l’Environnement, Université d’Evry Val d’Essonne, UMR-CNRS 8587, 91025 Evry Cedex, CEA Saclay, DEN/DPC/SECR/LSRM, 91191 Gif sur Yvette, France, CEA Marcoule, DEN/DRCP/SCPS, 3017 Bagnols sur Ceze, France, and Laboratoire de Physique Théorique de la Matiere Condensée LPTMC UMR-CNRS 7600, Université P/M Curie, 75052 Paris, France
| | - Carole Bresson
- Laboratoire Analyse et Modelisation pour la Biologie et l’Environnement, Université d’Evry Val d’Essonne, UMR-CNRS 8587, 91025 Evry Cedex, CEA Saclay, DEN/DPC/SECR/LSRM, 91191 Gif sur Yvette, France, CEA Marcoule, DEN/DRCP/SCPS, 3017 Bagnols sur Ceze, France, and Laboratoire de Physique Théorique de la Matiere Condensée LPTMC UMR-CNRS 7600, Université P/M Curie, 75052 Paris, France
| | - Christophe Den Auwer
- Laboratoire Analyse et Modelisation pour la Biologie et l’Environnement, Université d’Evry Val d’Essonne, UMR-CNRS 8587, 91025 Evry Cedex, CEA Saclay, DEN/DPC/SECR/LSRM, 91191 Gif sur Yvette, France, CEA Marcoule, DEN/DRCP/SCPS, 3017 Bagnols sur Ceze, France, and Laboratoire de Physique Théorique de la Matiere Condensée LPTMC UMR-CNRS 7600, Université P/M Curie, 75052 Paris, France
| | - Marie-Pierre Gaigeot
- Laboratoire Analyse et Modelisation pour la Biologie et l’Environnement, Université d’Evry Val d’Essonne, UMR-CNRS 8587, 91025 Evry Cedex, CEA Saclay, DEN/DPC/SECR/LSRM, 91191 Gif sur Yvette, France, CEA Marcoule, DEN/DRCP/SCPS, 3017 Bagnols sur Ceze, France, and Laboratoire de Physique Théorique de la Matiere Condensée LPTMC UMR-CNRS 7600, Université P/M Curie, 75052 Paris, France
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Bresson C, Spezia R, Esnouf S, Solari PL, Coantic S, Den Auwer C. A combined spectroscopic and theoretical approach to investigate structural properties of Co(ii)/Co(iii) tris-cysteinato complexes in aqueous medium. NEW J CHEM 2007. [DOI: 10.1039/b707055a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bresson C, Lamouroux C, Sandre C, Tabarant M, Gault N, Poncy JL, Lefaix JL, Den Auwer C, Spezia R, Gaigeot MP, Ansoborlo E, Mounicou S, Fraysse A, Deves G, Bacquart T, Seznec H, Pouthier T, Moretto P, Ortega R, Lobinski R, Moulin C. An interdisciplinary approach to investigate the impact of cobalt in a human keratinocyte cell line. Biochimie 2006; 88:1619-29. [PMID: 17007991 DOI: 10.1016/j.biochi.2006.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Accepted: 09/04/2006] [Indexed: 11/15/2022]
Abstract
Since in nuclear power plants, risks of skin contact contamination by radiocobalt are significant, we focused on the impact of cobalt on a human cutaneous cell line, i.e. HaCaT keratinocytes. The present paper reports an interdisciplinary approach aimed at clarifying the biochemical mechanisms of metabolism and toxicity of cobalt in HaCaT cells. Firstly, a brief overview of the used instrumental techniques is reported. The following parts present description and discussion of results concerning: (i) toxicological studies concerning cobalt impact towards HaCaT cells (ii) structural and speciation fundamental studies of cobalt-bioligand systems, through X-ray absorption spectroscopy (XAS), ab initio and thermodynamic modelling (iii) preliminary results regarding intracellular cobalt speciation in HaCaT cells using size exclusion chromatography/inductively coupled plasma-atomic emission spectroscopy (SEC/ICP-AES) and direct in situ analysis by ion beam micropobe analytical techniques.
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Affiliation(s)
- C Bresson
- DEN/DANS/DPC/SECR/LSRM, CEA Saclay, Batiment 391, 91191 Gif-sur-Yvette, France
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