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Sharma P, Ganguly M, Doi A. Analytical developments in the synergism of copper particles and cysteine: a review. NANOSCALE ADVANCES 2024; 6:3476-3493. [PMID: 38989510 PMCID: PMC11232554 DOI: 10.1039/d4na00321g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/15/2024] [Indexed: 07/12/2024]
Abstract
Cysteine, a sulfur-containing amino acid, is a vital candidate for physiology. Coinage metal particles (both clusters and nanoparticles) are highly interesting for their spectacular plasmonic properties. In this case, copper is the most important candidate for its cost-effectiveness and abundance. However, rapid oxidation destroys the stability of copper particles, warranting the necessity of suitable capping agents and experimental conditions. Cysteine can efficiently carry out such a role. On the contrary, cysteine sensing is a vital step for biomedical science. This review article is based on a comparative account of copper particles with cysteine passivation and copper particles for cysteine sensing. For the deep understanding of readers, we discuss nanoparticles and nanoclusters, properties of cysteine, and importance of capping agents, along with various synthetic protocols and applications (sensing and bioimaging) of cysteine-capped copper particles (cysteine-capped copper nanoparticles and cysteine-capped copper nanoclusters). We also include copper nanoparticles and copper nanoclusters for cysteine sensing. As copper is a plasmonic material, fluorometric and colorimetric methods are mostly used for sensing. Real sample analysis for both copper particles with cysteine and copper particles for cysteine sensing are also incorporated in this review to demonstrate their practical applications. Both cysteine-capped copper particles and copper particles for cysteine sensing are the main essence of this review. The aspect of the synergism of copper and cysteine (unlike other amino acids) is quite promising for future researchers.
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Affiliation(s)
- Priyanka Sharma
- Department of Chemistry, Manipal University Jaipur Dehmi Kalan Jaipur 303007 India
| | - Mainak Ganguly
- Department of Chemistry, Manipal University Jaipur Dehmi Kalan Jaipur 303007 India
| | - Ankita Doi
- Department of Biosciences, Manipal University Jaipur Dehmi Kalan Jaipur 303007 India
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2
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Rajendran HK, Deen MA, Ray JP, Singh A, Narayanasamy S. Harnessing the Chemical Functionality of Metal-Organic Frameworks Toward Removal of Aqueous Pollutants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:3963-3983. [PMID: 38319923 DOI: 10.1021/acs.langmuir.3c02668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Wastewater treatment has been bestowed with a plethora of materials; among them, metal-organic frameworks (MOFs) are one such kind with exceptional properties. Besides their application in gas adsorption and storage, they are applied in many fields. In orientation toward wastewater treatment, MOFs have been and are being successfully employed to capture a variety of aqueous pollutants, including both organic and inorganic ones. This review sheds light on the postsynthetic modifications (PSMs) performed over MOFs to adsorb and degrade recalcitrant. Modifications performed on the metal nodes and the linkers have been explained with reference to some widely used chemical modifications like alkylation, amination, thiol addition, tandem modifications, and coordinate modifications. The boost in pollutant removal efficacy, reaction rate, adsorption capacity, and selectivity for the modified MOFs is highlighted. The rationale and the robustness of micromotor MOFs, i.e., MOFs with motor activity, and their potential application in the capture of toxic pollutants are also presented for readers. This review also discusses the challenges and future recommendations to be considered in performing PSM over a MOF concerning wastewater treatment.
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Affiliation(s)
- Harish Kumar Rajendran
- Biochemical and Environmental Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Mohammed Askkar Deen
- Biochemical and Environmental Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Jyoti Prakash Ray
- Biochemical and Environmental Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anushka Singh
- Biochemical and Environmental Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Selvaraju Narayanasamy
- Biochemical and Environmental Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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3
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Selden CR, Schilling K, Godfrey L, Yee N. Metal-binding amino acid ligands commonly found in metalloproteins differentially fractionate copper isotopes. Sci Rep 2024; 14:1902. [PMID: 38253574 PMCID: PMC11229503 DOI: 10.1038/s41598-024-52091-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Copper (Cu) is a cofactor in numerous key proteins and, thus, an essential element for life. In biological systems, Cu isotope abundances shift with metabolic and homeostatic state. However, the mechanisms underpinning these isotopic shifts remain poorly understood, hampering use of Cu isotopes as biomarkers. Computational predictions suggest that isotope fractionation occurs when proteins bind Cu, with the magnitude of this effect dependent on the identity and arrangement of the coordinating amino acids. This study sought to constrain equilibrium isotope fractionation values for Cu bound by common amino acids at protein metal-binding sites. Free and bound metal ions were separated via Donnan dialysis using a cation-permeable membrane. Isotope ratios of pre- and post-dialysis solutions were measured by MC-ICP-MS following purification. Sulfur ligands (cysteine) preferentially bound the light isotope (63Cu) relative to water (Δ65Cucomplex-free = - 0.48 ± 0.18‰) while oxygen ligands favored the heavy isotope (65Cu; + 0.26 ± 0.04‰ for glutamate and + 0.16 ± 0.10‰ for aspartate). Binding by nitrogen ligands (histidine) imparted no isotope effect (- 0.01 ± 0.04‰). This experimental work unequivocally demonstrates that amino acids differentially fractionate Cu isotopes and supports the hypothesis that metalloprotein biosynthesis affects the distribution of transition metal isotopes in biological systems.
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Affiliation(s)
- Corday R Selden
- Department of Marine and Coastal Sciences, Rutgers, University, New Brunswick, NJ, USA.
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA.
| | - Kathrin Schilling
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Linda Godfrey
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA
| | - Nathan Yee
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA
- Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, USA
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Bain D, Russier-Antoine I, Yuan H, Kolay S, Maclot S, Moulin C, Salmon E, Brevet PF, Pniakowska A, Olesiak-Bańska J, Antoine R. Solvent-Induced Aggregation of Self-Assembled Copper-Cysteine Nanoparticles Reacted with Glutathione: Enhancing Linear and Nonlinear Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16554-16561. [PMID: 37947385 DOI: 10.1021/acs.langmuir.3c02526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Copper-thiolate self-assembly nanostructures are a unique class of nanomaterials because of their interesting properties such as hierarchical structures, luminescence, and large nonlinear optical efficiency. Herein, we synthesized biomolecule cysteine (Cys) and glutathione (GSH) capped sub-100 nm self-assembly nanoparticles (Cu-Cys-GSH NPs) with red fluorescence. The as-synthesized NPs show high emission enhancement in the presence of ethanol, caused by the aggregation-induced emission. We correlated the structure and optical properties of Cu-Cys-GSH NPs by measuring the mass, morphology, and surface charge as well as their two-photon excited fluorescence cross-section (σ2PEPL), two-photon absorption cross-section (σTPA) and first hyperpolarizability (β) of Cu-Cys-GSH NPs in water and water-ethanol using near-infrared wavelength. We found a high β value as (77 ± 10) × 10-28 esu (in water) compared to the reference medium water. The estimated values of σ2PEPL and σTPA are found to be (13 ± 2) GM and (1.4 ± 0.2) × 104 GM, respectively. We hope our investigations of linear and nonlinear optical properties of copper-thiolate self-assemblies in water and its solvent-induced aggregates will open up new possibilities in designing self-assembled systems for many applications including sensing, drug delivery, and catalysis.
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Affiliation(s)
- Dipankar Bain
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Isabelle Russier-Antoine
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Hao Yuan
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Sarita Kolay
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Sylvain Maclot
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Christophe Moulin
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Estelle Salmon
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Pierre-François Brevet
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Anna Pniakowska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wrocław 50-370, Poland
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wrocław 50-370, Poland
| | - Rodolphe Antoine
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
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Song Z, Xu Y, Wu H, Huang J, Zhang Y. Superior photo-Fenton degradation of acetamiprid by α- Fe 2O 3-pillared bentonite/L-cysteine complex: Synergy of L-cysteine and visible light. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118523. [PMID: 37393869 DOI: 10.1016/j.jenvman.2023.118523] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/16/2023] [Accepted: 06/24/2023] [Indexed: 07/04/2023]
Abstract
Acetamiprid is a potential threat to human health, aquatic life, soil microorganisms and beneficial insects as a recalcitrant pollutant in wastewater treatment plant effluents. In this work, the synthesized α-Fe2O3-pillared bentonite (FPB) was used to degrade acetamiprid in the photo-Fenton process with the assistance of L-cysteine (L-cys) existing in natural aquatic environment. The kinetic constant k of acetamiprid degradation by FPB/L-cys in the photo-Fenton process was far more than that in the Fenton process of FPB/L-cys lacking light and the photo-Fenton process of FPB without L-cys. The positive linear correlation between k and ≡Fe(II) content indicated the synergy of L-cys and visible light accelerated the cycle of Fe(III) to Fe(II) in FPB/L-cys during the degradation of acetamiprid by elevating the visible light response of FPB, and promoting the interfacial electron transfer from the active sites of FPB to hydrogen peroxide and photo-generated electron transfer from conduction band of α-Fe2O3 to the active sites of FPB. The boosting •OH and 1O2 were predominantly responsible for acetamiprid degradation. Acetamiprid could be efficiently degraded into less toxic small molecules in the photo-Fenton process via C-N bond breaking, hydroxylation, demethylation, ketonization, dechlorination, and ring cleavage.
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Affiliation(s)
- Zhelin Song
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Yu Xu
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Honghai Wu
- School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & Key Laboratory of Theoretical Chemistry of Environment Ministry of Education, South China Normal University, Guangzhou, 510006, China
| | - Jiahui Huang
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Yanlin Zhang
- School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & Key Laboratory of Theoretical Chemistry of Environment Ministry of Education, South China Normal University, Guangzhou, 510006, China.
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Huseyinova S, Blanco Trillo JM, Ramallo-López JM, Requejo FG, Buceta D, López-Quintela MA. Synthesis of photocatalytic cysteine-capped Cu ≈10 clusters using Cu 5 clusters as catalysts. Phys Chem Chem Phys 2023; 25:6025-6031. [PMID: 36757180 DOI: 10.1039/d2cp04550h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We report an easily scalable synthesis method for the preparation of cysteine-capped Cu≈10 clusters through the reduction of Cu(II) ions with NaBH4, using Cu5 clusters as catalysts. The presence of such catalytic clusters allows controlling the formation of the larger Cu≈10 clusters and prevents the production of copper oxides or Cu(I)-cysteine complexes, which are formed when Cu5 is absent or at lower concentrations, respectively. These results indicate that small catalytic clusters could be involved, as precursor species before the reduction step, in the different methods developed for the synthesis of clusters. The visible light-absorbing Cu≈10 clusters, obtained by the cluster-catalysed method, display high photocatalytic activities for the decomposition of methyl orange with visible light.
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Affiliation(s)
- Shahana Huseyinova
- Physical Chemistry Department, Faculty of Chemistry, and NANOMAG Laboratory, IMATUS, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
| | - José M Blanco Trillo
- Physical Chemistry Department, Faculty of Chemistry, and NANOMAG Laboratory, IMATUS, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
| | - José M Ramallo-López
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - INIFTA (CONICET, UNLP), 1900, La Plata, Argentina
| | - Félix G Requejo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - INIFTA (CONICET, UNLP), 1900, La Plata, Argentina
| | - David Buceta
- Physical Chemistry Department, Faculty of Chemistry, and NANOMAG Laboratory, IMATUS, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
| | - M Arturo López-Quintela
- Physical Chemistry Department, Faculty of Chemistry, and NANOMAG Laboratory, IMATUS, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
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7
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Mechanochemical synthesis of six Cu(II) complexes with selected thiols, their physicochemical characterization and interaction with DNA. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Junaid A, Ng CH, Ooi IH. Synthesis and Characterization of the Nanogold-Bound Ternary Copper(II) Complex of Phenanthroline and Cysteine as Potential Anticancer Agents. ACS OMEGA 2022; 7:26190-26200. [PMID: 35936482 PMCID: PMC9352234 DOI: 10.1021/acsomega.2c01858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of this study was to synthesize and characterize a nanogold-{[(Cu)(phen)(cys)(H2O)]NO3}n conjugate and to evaluate its antiproliferative property against the breast cancer cell line (MCF7) and normal cell line (MCF10A). Nanogold solution was prepared using the Turkevich method. In one approach, a ternary copper(II) complex of 1,10-phenanthroline with l-cysteine, [(Cu)(phen)(cys)(H2O)]NO3, was first prepared and then tethered with the gold nanoparticles. In another approach, gold nanoparticles were reacted with l-cysteine, copper(II) nitrate, and 1,10-phenanthroline subsequently. The synthesized [(Cu)(phen)(cys)(H2O)]NO3 complex was characterized by Fourier transform infrared (FTIR) and electrospray ionization mass spectrometry techniques, which showed that l-cysteine was bound to the copper through carboxylic and amino groups, with the thiol moiety remaining free. The free thiol group was bound to the nanogold surface to form the nanogold-{[(Cu)(phen)(cys)(H2O)]NO3}n conjugate, as evidenced by the increase in the surface plasmon absorption band in ultraviolet-visible and the absence of a thiol peak in FTIR of the nanogold-copper complex conjugate. The anticancer activity of the nanogold-copper complex conjugate and the free copper complex against a breast cancer cell line (MCF7) and their toxicity on a normal cell line (MCF10A) were examined using the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxy phenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay. Results suggested that the nanogold-{[(Cu)(phen)(cys)(H2O)]NO3}n conjugate demonstrates a selective antiproliferative and proapoptotic effect on the breast cancer cells, confirming the potential of the nanogold-copper complex conjugate as an anticancer agent.
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Pachón Gómez EM, Fernando Silva O, Der Ohannesian M, Núñez Fernández M, Oliveira RG, Fernández MA. Micelle‐to‐vesicle transition of lipoamino Gemini surfactant induced by metallic salts and its effects on antibacterial activity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Salhi O, Ez-zine T, Oularbi L, El Rhazi M. Cysteine combined with carbon black as support for electrodeposition of poly (1,8-Diaminonaphthalene): Application as sensing material for efficient determination of nitrite ions. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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11
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Zhang Y, Zhang L, Liang X, Wang Q, Yin X, Pierce EM, Gu B. Competitive exchange between divalent metal ions [Cu(II), Zn(II), Ca(II)] and Hg(II) bound to thiols and natural organic matter. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127388. [PMID: 34879578 DOI: 10.1016/j.jhazmat.2021.127388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/21/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
Mercuric Hg(II) ion forms exceptionally strong complexes with various organic ligands, particularly thiols and dissolved organic matter (DOM) in natural water. Few studies, however, have experimentally determined whether or not the presence of base cations and transition metal ions, such as Ca(II), Cu(II), and Zn(II), would compete with Hg(II) bound to these ligands, as concentrations of these metal ions are usually orders of magnitude higher than Hg(II) in aquatic systems. Different from previous model predictions, a significant fraction of Hg(II) bound to cysteine (CYS), glutathione (GSH), or DOM was found to be competitively exchanged by Cu(II), but not by Zn(II) or Ca(II). About 20-75% of CYS-bound-Hg(II) [at 2:1 CYS:Hg(II)] and 14-40% of GSH-bound-Hg(II) [at 1:1 GSH:Hg(II)] were exchanged by Cu(II) at concentrations 1-3 orders of magnitude greater than Hg(II). Competitive exchange was also observed between Cu(II) and Hg(II) bound to DOM, albeit to a lower extent, depending on relative abundances of thiol and carboxylate functional groups on DOM and their equilibrium time with Hg(II). When complexed with ethylenediaminetetraacetate (EDTA), most Hg(II) could be exchanged by Cu(II) and Zn(II), as well as Ca(II) at increasing concentrations. These results shed additional light on competitive exchange reactions between Hg(II) and coexisting metal ions and have important implications in Hg(II) chemical speciation and biogeochemical transformation, particularly in contaminated environments containing relatively high concentrations of Hg(II) and metal ions.
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Affiliation(s)
- Yaoling Zhang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, Qinghai 810008, China; Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Lijie Zhang
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Xujun Liang
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Quanying Wang
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Xiangping Yin
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Eric M Pierce
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Baohua Gu
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States; Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States.
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Lin X, Tian M, Cao C, Shu T, Wen Y, Su L, Zhang X. Using bimetallic Au/Cu nanoplatelets for construction of facile and label-free inner filter effect-based photoluminescence sensing platform for sarcosine detection. Anal Chim Acta 2022; 1192:339331. [PMID: 35057923 DOI: 10.1016/j.aca.2021.339331] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/01/2022]
Abstract
Herein, we report a facile and label-free method for sensitive and specific determination of prostate cancer biomarker sarcosine via using photoluminescent bimetallic Au/Cu nanoplatelets (AuCu NPs) to construct an inner filter effect (IFE)-based photoluminescence (PL) sensing platform. The AuCu NPs were formed by the cysteine-induced co-reduction reaction, which displayed bright PL with an emission peak at 560 nm. Meanwhile, the Cu(I) doping caused a maximum 25-fold enhancement of quantum yield (QY), compared with the native Au(I) complexes, i.e., from 0.85 to 21.5%. By integrating the AuCu NPs with p-phenylenediamine (PPD) oxidation reaction, an IFE-based sensor for sarcosine detection was constructed. In this method, sarcosine is oxidized under the catalysis of sarcosine oxidase (SOx) to yield H2O2. The latter further oxidizes PPD to form 2,5-diamino-N,N'-bis(p-aminophenyl)-l,4-benzoquinone di-imine (PPDox) in the presence of horseradish peroxidase (HRP). The UV-vis absorption spectrum of the PPDox can overlap well with the excitation and emission spectra of the AuCu NPs, resulting in the efficient quenching of the AuCu NPs via the IFE effect. Therefore, this IFE-based AuCu NPs/SOx/PPD/HRP sensing platform can be used for highly sensitive and specific sensing of sarcosine. The sensing platform showed two linear regions of the PL intensity of the AuCu NPs versus the concentration of sarcosine in the range of 0.5-5 μM and 5-100 μM with a detection limit (LOD) of 0.12 μM (S/N = 3). Furthermore, this IFE-based sensing platform could be developed into a paper-based biosensor for simple, instrument-free, and visual detection of sarcosine.
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Affiliation(s)
- Xiangfang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Meng Tian
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Chengcheng Cao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Tong Shu
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518037, PR China
| | - Yongqiang Wen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Lei Su
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518037, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518037, PR China
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13
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Ramek M, Pejić J, Sabolović J. Structure prediction of neutral physiological copper(II) compounds with l-cysteine and l-histidine. J Inorg Biochem 2021; 223:111536. [PMID: 34274876 DOI: 10.1016/j.jinorgbio.2021.111536] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/19/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
Bis(aminoacidato)copper(II) [CuII(aa)2] coordination compounds are the physiological species of copper(II) amino acid compounds in blood plasma. Since there are no experimental data in the literature about the geometries that physiological CuII(aa)2 could form with l-cysteine (Cys), that is, for bis(l-cysteinato)copper(II) [Cu(Cys)2] and the ternary (l-histidinato)(l-cysteinato)copper(II) [Cu(His)(Cys)], this paper computationally examines the possible conformations that the two compounds could form with the Cys ligand having a protonated sulfur, as in the conventional zwitterion, which was determined to be prevailing in aqueous solution. These two amino acids can bind metals in a tridentate fashion and thus form many possible coordination patterns. Density functional calculations were performed for the conformational analyses in the gas phase and in implicitly modeled aqueous solution using a polarizable continuum model. Additionally, we examine which coordination mode, with thiol or thiolate group, is more stable. The Cys coordination via the amino N and carboxylato O atoms (a glycinato mode) is obtained as the most stable one in aqueous Cu(Cys)2, and also in Cu(His)(Cys) when the His glycinato or histaminato mode combines with the intact thiol group. Whereas the conformers with N and thiol S as the copper(II) donor atoms are predicted to be the least stable, those with the Cu-N and Cu-S(thiolate) bonding (and protonated carboxylato group) are the most stable. The differences are explained by different covalent and ionic contributions of Cu-S(thiol) vs. Cu-S(thiolate). The study can contribute to the insight into formation and reactivity of the copper(II) cysteinato complexes in solution.
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Affiliation(s)
- Michael Ramek
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Jelena Pejić
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, HR-10000 Zagreb, Croatia
| | - Jasmina Sabolović
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, HR-10000 Zagreb, Croatia.
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14
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Gizatullin A, Becker J, Islamov D, Serov N, Schindler S, Klimovitskii A, Shtyrlin V. Synthesis and structure of a complex of copper(I) with l-cysteine and chloride ions containing Cu 12S 6 nanoclusters. Acta Crystallogr E Crystallogr Commun 2021; 77:324-330. [PMID: 33936751 PMCID: PMC8025850 DOI: 10.1107/s2056989021002012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/20/2021] [Indexed: 11/11/2022]
Abstract
The title hydrated copper(I)-l-cysteine-chloride complex has a polymeric structure of composition {[Cu16(CysH2)6Cl16]·xH2O} n [CysH2 = HO2CCH(NH3 +)CH2S- or C3H7NO2S], namely, poly[[tetra-μ3-chlorido-deca-μ2-chlorido-di-chlorido-hexa-kis-(μ4-l-cysteinato)hexa-deca-copper] polyhydrate]. The copper atoms are linked by thiol-ate groups to form Cu12S6 nanoclusters that take the form of a tetra-kis cubocta-hedron, made up of a Cu12 cubo-octa-hedral subunit that is augmented by six sulfur atoms that are located symmetrically atop of each of the Cu4 square units of the Cu12 cubo-octa-hedron. The six S atoms thus form an octa-hedral subunit themselves. The exterior of the Cu12S6 sphere is decorated by chloride ions and trichlorocuprate units. Three chloride ions are coordinated in an irregular fashion to trigonal Cu3 subunits of the nanocluster, and four trigonal CuCl3 units are bonded via each of their chloride ions to a copper ion on the Cu12S6 sphere. The trigonal CuCl3 units are linked via Cu2Cl2 bridges covalently connected to equivalent units in neighboring nanoclusters. Four such connections are arranged in a tetra-hedral fashion, thus creating an infinite diamond-like net of Cu12S6Cl4(CuCl3)4 nanoclusters. The network thus formed results in large channels occupied by solvent mol-ecules that are mostly too ill-defined to model. The content of the voids, believed to be water mol-ecules, was accounted for via reverse Fourier-transform methods using the SQUEEZE algorithm [Spek (2015 ▸). Acta Cryst. C71, 9-18]. The protonated amino groups of the cysteine ligands are directed away from the sphere, forming N-H⋯Cl hydrogen bonds with chloride-ion acceptors of their cluster. The protonated carb-oxy groups point outwards and presumably form O-H⋯O hydrogen bonds with the unresolved water mol-ecules of the solvent channels. Disorder is observed in one of the two crystallographically unique [Cu16(CysH2)6Cl16] segments for three of the six cysteine anions.
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Affiliation(s)
- Amir Gizatullin
- A. M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya St., 18, Kazan, 420008, Russian Federation
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig University of Giessen, Heinrich-Buff Ring 17, D-35392 Giessen, Germany
| | - Daut Islamov
- A. E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov St. 8, 420088 Kazan, Russian Federation
| | - Nikita Serov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya St., 18, Kazan, 420008, Russian Federation
| | - Siegfried Schindler
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig University of Giessen, Heinrich-Buff Ring 17, D-35392 Giessen, Germany
| | - Alexander Klimovitskii
- A. M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya St., 18, Kazan, 420008, Russian Federation
| | - Valery Shtyrlin
- A. M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya St., 18, Kazan, 420008, Russian Federation
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Mercy JSI, Maruthupandi M, Mamat MHB, Vasimalai N. Facile In-Situ Synthesis of Biopolymer Capped Nano Sized Silver Particles: Smartphone Aided Paper-Based Selective Detection of CYS and TC Drugs in Biological and Drug Samples. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02035-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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16
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Maruthupandi M, Vasimalai N. Nanomolar detection of L-cysteine and Cu2+ ions based on Trehalose capped silver nanoparticles. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105782] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Deilamy-Rad G, Asghari K, Tavallali H. Development of a Reversible Indicator Displacement Assay Based on the 1-(2-Pyridylazo)-2-naphthol for Colorimetric Determination of Cysteine in Biological Samples and Its Application to Constructing the Paper Test Strips and a Molecular-Scale Set/Reset Memorized Device. Appl Biochem Biotechnol 2020; 192:85-102. [DOI: 10.1007/s12010-019-03165-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/23/2019] [Indexed: 02/01/2023]
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18
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Hu C, Hu H, Song M, Tan J, Huang G, Zuo J. Preparation, characterization, and Cd(II) sorption of/on cysteine-montmorillonite composites synthesized at various pH. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:10599-10606. [PMID: 31942713 DOI: 10.1007/s11356-019-07550-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Montmorillonite-cysteine could be used as the immobilizer, detector, and detoxifier of heavy metals. To further the understanding and the application, the interaction between the montmorillonite and cysteine and the adsorption of cysteine on montmorillonite and characterization of the composites need to be studied further. In present work, the effects of pH, contact time and initial concentration of cysteine on the adsorption, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Cd(II) adsorption on the composites were conducted to characterize the composites synthesized at different pH conditions. The results showed that the adsorption amount of cysteine on montmorillonite decreased with the increase of pH in the range of 2.4-8.0, reached equilibrium in about 1 min and increased with the initial concentration of cysteine and reached the maximum at 160 mg/g. The adsorption data fitted with Langmuir better than Freundlich, fitted with first-order and second-order better than the intraparticle diffusion model. XRD patterns and FTIR spectra showed that the interlayer spacing of the composite synthesized in the range of pH 2.4-4.3 was larger than that at pH 4.5-8.0 and the bonding of cysteine and montmorillonite mainly depended on the action of the amino group. Adsorption of Cd(II) on composites indicated more cysteine loaded (pH < 4.5) composite had greater capacity for Cd(II). The above results demonstrated that the composite synthesized under lower pH could retain more active cysteine, which might be beneficial to its various applications.
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Affiliation(s)
- Chao Hu
- Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life Science and Technology,, Hubei Engineering University, Xiaogan, 432000, China.
| | - Hongqing Hu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Mengdie Song
- Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life Science and Technology,, Hubei Engineering University, Xiaogan, 432000, China
| | - Ju Tan
- Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life Science and Technology,, Hubei Engineering University, Xiaogan, 432000, China
| | - Guoyong Huang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jichao Zuo
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
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19
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Berestova TV, Khursan SL, Mustafin AG. Experimental and theoretical substantiation of differences of geometric isomers of copper(II) α-amino acid chelates in ATR-FTIR spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117950. [PMID: 31862653 DOI: 10.1016/j.saa.2019.117950] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/20/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Stereo and structural isomerism of the copper(II) chelate complexes define their biological activity. At the same time, the identification of the geometric isomers of such complexes is a nontrivial task of modern coordination chemistry. In the presented work we have studied the trans- and cis-isomers of chelates bis(S-valinato)copper(II), (R,S-valinato)copper(II) and other mixed ligand copper(II) amino acid complexes with the joint use of experimental by ATR-FTIR spectroscopy and DFT simulations. Using DFT simulations (method M06/6 311+G(d)) the optimum conformers of the geometric isomers of copper(II) a-amino acid chelate complexes were found and their characteristic stretching vibrations were established in the mid-wave region of the IR spectra. The experimental ATR-FTIR bands of the compounds well agree with the theoretical estimates. Such a joint use allows to determine of cis- and trans-isomers of copper(II) N,O-amino acid chelates in the mid-wave region of the ATR-FTIR spectrum.
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Affiliation(s)
| | - Sergey L Khursan
- Ufa Institute of Chemistry, Ufa Federal Research Center of the Russian Academy of Sciences, Ufa, Russian Federation
| | - Akhat G Mustafin
- Bashkir State University, Department of Chemistry, Ufa, Russian Federation; Ufa Institute of Chemistry, Ufa Federal Research Center of the Russian Academy of Sciences, Ufa, Russian Federation
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Basu S, Nawaj MW, Gayen C, Paul A. Photo induced chemical modification of surface ligands for aggregation and luminescence modulation of copper nanoclusters in the presence of oxygen. Phys Chem Chem Phys 2019; 21:21776-21781. [PMID: 31552924 DOI: 10.1039/c9cp01484e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Surface modification of nanoparticles has been a popular approach to tailor the properties of nanoparticles. Herein we report the unprecedented photo oxidation of cysteine moeties on the surface of copper nanoclusters (Cu NCs) leading to aggregation of Cu NCs, which further led to quenching of luminescence of the latter. Upon illumination of a dispersion of Cu NCs at 365 nm wavelength light, the luminescence of Cu NCs was completely quenched. Furthermore, the extent of luminescence quenching of Cu NCs upon photo illumination could be tuned by varying the area of exposure of light. Confirmation of photooxidation of cysteine molecules was made through Fourier transformed infrared (FTIR) studies, while the formation of submicron sized aggregates of Cu NCs as a result of photo oxidation of cysteine stabilizing the nanoclusters was evinced through transmission electron microscopy (TEM). The study embodied herein opens up new avenues for the tailoring of the chemical and optical properties of metal nanoclusters through chemical transformation of surface ligand moieties, which is envisioned to emerge as a powerful strategy for broadening the application potential of metal nanoclusters.
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Affiliation(s)
- Srestha Basu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
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Tavallali H, Deilamy-Rad G, Karimi MA, Rahimy E. A novel dye-based colorimetric chemosensors for sequential detection of Cu2+ and cysteine in aqueous solution. Anal Biochem 2019; 583:113376. [DOI: 10.1016/j.ab.2019.113376] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/22/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022]
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22
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Badetti E, Calgaro L, Falchi L, Bonetto A, Bettiol C, Leonetti B, Ambrosi E, Zendri E, Marcomini A. Interaction between Copper Oxide Nanoparticles and Amino Acids: Influence on the Antibacterial Activity. NANOMATERIALS 2019; 9:nano9050792. [PMID: 31126084 PMCID: PMC6566567 DOI: 10.3390/nano9050792] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 05/20/2019] [Indexed: 11/16/2022]
Abstract
The increasing concern about antibiotic-resistance has led to the search for alternative antimicrobial agents. In this effort, different metal oxide nanomaterials are currently under investigation, in order to assess their effectiveness, safety and mode of action. This study focused on CuO nanoparticles (CuO NPs) and was aimed at evaluating how the properties and the antimicrobial activity of these nanomaterials may be affected by the interaction with ligands present in biological and environmental media. Ligands can attach to the surface of particles and/or contribute to their dissolution through ligand-assisted ion release and the formation of complexes with copper ions. Eight natural amino acids (L-Arg, L-Asp, L-Glu, L-Cys, L-Val, L-Leu, L-Phe, L-Tyr) were chosen as model molecules to investigate these interactions and the toxicity of the obtained materials against the Gram-positive bacterium Staphylococcus epidermidis ATCC 35984. A different behavior from pristine CuO NPs was observed, depending on the aminoacidic side chain. These results were supported by physico-chemical and colloidal characterization carried out by means of Fourier-Transform Infrared spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and Thermo-Gravimetric Analysis (TGA), Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and light scattering techniques (Dynamic Light Scattering (DLS), Electrophoretic Light Scattering (ELS) and Centrifugal Separation Analysis (CSA).
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Affiliation(s)
- Elena Badetti
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Loris Calgaro
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Laura Falchi
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Alessandro Bonetto
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Cinzia Bettiol
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Benedetta Leonetti
- DMSN-Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Via Torino 155/b, 30172 Venice Mestre, Italy.
- ECLT Lab-European Centre for Living Technology, University Ca' Foscari of Venice, Via Torino 155/b, 30172 Venice Mestre, Italy.
| | - Emmanuele Ambrosi
- DMSN-Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Via Torino 155/b, 30172 Venice Mestre, Italy.
- ECLT Lab-European Centre for Living Technology, University Ca' Foscari of Venice, Via Torino 155/b, 30172 Venice Mestre, Italy.
| | - Elisabetta Zendri
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
| | - Antonio Marcomini
- DAIS-Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice Mestre, Italy.
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24
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Priyanga S, Khamrang T, Velusamy M, Karthi S, Ashokkumar B, Mayilmurugan R. Coordination geometry-induced optical imaging of l-cysteine in cancer cells using imidazopyridine-based copper(ii) complexes. Dalton Trans 2019; 48:1489-1503. [PMID: 30632585 DOI: 10.1039/c8dt04634d] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Overexpression of cysteine cathepsins proteases has been documented in a wide variety of cancers, and enhances the l-cysteine concentration in tumor cells. We report the synthesis and characterization of copper(ii) complexes [Cu(L1)2(H2O)](SO3CF3)2, 1, L1 = 3-phenyl-1-(pyridin-2-yl)imidazo[1,5-a]pyridine, [Cu(L2)2(SO3CF3)]SO3CF3, 2, L2 = 3-(4-methoxyphenyl)-1-pyridin-2-yl-imidazo[1,5-a]pyridine, [Cu(L3)2(H2O)](SO3CF3)2, 3, L3 = 3-(3,4-dimethoxy-phenyl)-1-pyridin-2-yl-imidazo[1,5-a]pyridine and [Cu(L4)2(H2O)](SO3CF3)2, 4, L4 = dimethyl-[4-(1-pyridin-2-yl-imidazo[1,5-a]pyridin-3-yl)phenyl]amine as 'turn-on' optical imaging probes for l-cysteine in cancer cells. The molecular structure of complexes adopted distorted trigonal pyramidal geometry (τ, 0.68-0.87). Cu-Npy bonds (1.964-1.989 Å) were shorter than Cu-Nimi bonds (2.024-2.074 Å) for all complexes. Geometrical distortion was strongly revealed in EPR spectra, showing g‖ (2.26-2.28) and A‖ values (139-163 × 10-4 cm-1) at 70 K. The d-d transitions appeared around 680-741 and 882-932 nm in HEPES, which supported the existence of five-coordinate geometry in solution. The Cu(ii)/Cu(i) redox potential of 1 (0.221 V vs. NHE) was almost identical to that of 2 and 3 but lower than that of 4 (0.525 V vs. NHE) in HEPES buffer. The complexes were almost non-emissive in nature, but became emissive by the interaction of l-cysteine in 100% HEPES at pH 7.34 via reduction of Cu(ii) to Cu(i). Among the probes, probe 2 showed selective and efficient turn-on fluorescence behavior towards l-cysteine over natural amino acids with a limit of detection of 9.9 × 10-8 M and binding constant of 2.3 × 105 M-1. The selectivity of 2 may have originated from a nearly perfect trigonal plane adopted around a copper(ii) center (∼120.70°), which required minimum structural change during the reduction of Cu(ii) to Cu(i) while imaging Cys. The other complexes, with their distorted trigonal planes, required more reorganizational energy, which resulted in poor selectivity. Probe 2 was employed for optical imaging of l-cysteine in HeLa cells and macrophages. It exhibited brighter fluorescent images by visualizing Cys at pH 7.34 and 37 °C. It showed relatively less toxicity for these cell lines as ascertained by the MTT assay.
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Affiliation(s)
- Selvarasu Priyanga
- Bioinorganic Chemistry Laboratory/Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625021, India.
| | - Themmila Khamrang
- Department of Chemistry, North-Eastern Hill University, Shillong, 793022, India
| | - Marappan Velusamy
- Department of Chemistry, North-Eastern Hill University, Shillong, 793022, India
| | - Sellamuthu Karthi
- School of Biotechnology, Madurai Kamaraj University, Madurai, 625 021, India
| | | | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625021, India.
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Thangaraj A, Bhardwaj V, Sahoo SK. A multi-analyte selective dansyl derivative for the fluorescence detection of Cu(ii) and cysteine. Photochem Photobiol Sci 2019; 18:1533-1539. [DOI: 10.1039/c9pp00080a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A new multi-analyte selective fluorescence chemosensor DA was synthesized by a simple one pot reaction between dansyl chloride and 2-aminobenzohydrazide in the presence of a base.
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Affiliation(s)
- Anand Thangaraj
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Vinita Bhardwaj
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Suban K. Sahoo
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
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26
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Frank A, Grunwald J, Breitbach B, Scheu C. Facile and Robust Solvothermal Synthesis of Nanocrystalline CuInS₂ Thin Films. NANOMATERIALS 2018; 8:nano8060405. [PMID: 29874827 PMCID: PMC6027332 DOI: 10.3390/nano8060405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 11/19/2022]
Abstract
This work demonstrates that the solvothermal synthesis of nanocrystalline CuInS2 thin films using the amino acid l-cysteine as sulfur source is facile and robust against variation of reaction time and temperature. Synthesis was carried out in a reaction time range of 3–48 h (at 150 °C) and a reaction temperature range of 100–190 °C (for 18 h). It was found that at least a time of 6 h and a temperature of 140 °C is needed to produce pure nanocrystalline CuInS2 thin films as proven by X-ray and electron diffraction, high-resolution transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Using UV-vis spectroscopy, a good absorption behavior as well as direct band gaps between 1.46 and 1.55 eV have been determined for all grown films. Only for a reaction time of 3 h and temperatures below 140 °C CuInS2 is not formed. This is attributed to the formation of metal ion complexes with l-cysteine and the overall slow assembly of CuInS2. This study reveals that the reaction parameters can be chosen relatively free; the reaction is completely nontoxic and precursors and solvents are rather cheap, which makes this synthesis route interesting for industrial up scaling.
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Affiliation(s)
- Anna Frank
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
| | - Jan Grunwald
- Ludwig-Maximilians-Universität, Butenandtstraße 5-11, 81377 Munich, Germany.
| | - Benjamin Breitbach
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
| | - Christina Scheu
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
- Materials Analytics, RWTH Aachen University, Kopernikusstraße 10, 52074 Aachen, Germany.
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27
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Wu J, Chen X, Wang Q, Bian Y, Zhang K, Sheng Z, Jin J, Yang M, Dai P, Fu X, Chang W, Xie C. Organic-inorganic-hybrid-enhancement Electrochemical Sensor for Determination of Cu (II) in River Water. ELECTROANAL 2018. [DOI: 10.1002/elan.201800056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ju Wu
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Xin Chen
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Qishai Wang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Yuting Bian
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Kai Zhang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Zhong Sheng
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Juncheng Jin
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Mei Yang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Panpan Dai
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Xucheng Fu
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Wengui Chang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
| | - Chenggen Xie
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology; West Anhui University, Lu'an, Anhui; 237015 China
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28
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Dos Santos MM, Prestes AS, de Macedo GT, Ecker A, Barcelos RP, Boligon AA, Souza D, de Bem AF, da Rocha JBT, Barbosa NV. Syzygium cumini leaf extract inhibits LDL oxidation, but does not protect the liproprotein from glycation. JOURNAL OF ETHNOPHARMACOLOGY 2018; 210:69-79. [PMID: 28844679 DOI: 10.1016/j.jep.2017.08.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 08/22/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
ETNOPHARMACOLOGICAL RELEVANCE Syzygium cumini (L.) Skeels is a plant widely used in folk medicine to treat diabetes mellitus (DM). The tea from its leaves is frequently used by diabetics for lowering hyperglycemia. There is a close relationship between DM and atherosclerosis, a chronic immuno-inflammatory disease, were the early stages encompass oxidative and glycative modifications in the structure of low density lipoprotein (LDL). AIM OF THIS STUDY To investigate the potential protective effects of aqueous-leaf extract from Syzygium cumini (S.cExt) against CuSO4-induced oxidation and methylglyoxal (MG)-induced glycation of human LDL in vitro. MATERIALS AND METHODS LDL oxidative changes were evaluated by measuring conjugated dienes (CD) formation, thiobarbituric acid reactive substances (TBARS) levels, quenching of tryptophan (Trp) fluorescence and structural modifications in LDL particle. In LDL glycated by MG (glyLDL), we determined the levels of fluorescent advanced glycation end products (AGEs) and mobility by agarose gel electrophoresis. RESULTS S.cExt blocked oxidative events induced by CuSO4 in human LDL, plasma and serum. Fourier transform infrared spectroscopy (FT-IR) revealed that specific regions of apoB100 were oxidized by CuSO4 in human LDL and that S.cExt reduced these oxidations. Unlike, the increased AGEs levels and eletrophoretic mobility observed in LDL MG-glycated were not modified by S.cExt. CONCLUSION The findings herein indicate that S.cExt could be tested in atherogenesis models as potential protective agent against LDL oxidation.
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Affiliation(s)
- Matheus M Dos Santos
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Alessandro S Prestes
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Gabriel T de Macedo
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Assis Ecker
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Rômulo P Barcelos
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil; Graduate Program in Bio-experimentation, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Aline A Boligon
- Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Diego Souza
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Andreza F de Bem
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - João B T da Rocha
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Nilda V Barbosa
- Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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Zanzen U, Bovenkamp-Langlois L, Klysubun W, Hormes J, Prange A. The interaction of copper ions with Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli: an X-ray absorption near-edge structure (XANES) spectroscopy study. Arch Microbiol 2017; 200:401-412. [PMID: 29181710 DOI: 10.1007/s00203-017-1454-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/13/2017] [Accepted: 11/14/2017] [Indexed: 01/26/2023]
Abstract
The antimicrobial properties of copper ions have been known for a long time. However, the exact mechanism of action of the transition metal on microorganisms has long been unclear. X-ray absorption near-edge structure (XANES) spectroscopy at the Cu K edge allows the determination of copper speciation in Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa that have been treated with Cu(II) and Cu(I) solutions. The death/inactivation of the bacteria was observed using plate counting and light microscopy. The Cu K-XANES spectra of the two Gram-negative bacteria are different than those of the Gram-positive strain. The results clearly show that the Cu+-S bond contributes to the antibacterial activity of copper, as in the case of silver. The detailed evaluation of the differentiated absorption spectra shows that Cu+ (not Cu2+) is the dominant ion that binds to the bacteria. Because Cu+ is not the most common copper ion, copper is not as effective an antibacterial agent as silver, whose common valency is actually + 1. Any reaction of copper with phosphorus from the bacteria can be excluded after the evaluation of the absorption spectra.
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Affiliation(s)
- Ulrike Zanzen
- Microbiology and Food Hygiene, Department of Food Sciences, Niederrhein University of Applied Sciences, Rheydter Strasse 277, 41065, Mönchengladbach, Germany.,Institute for Virology and Microbiology, University of Witten/Herdecke, 58448, Witten, Germany
| | - Lisa Bovenkamp-Langlois
- Center for Advanced Microstructures and Devices (CAMD), Louisiana State University, 6980 Jefferson Hwy, Baton Rouge, LA, 70806, USA
| | - Wantana Klysubun
- SIAM Photon Source, Synchrotron Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima, 30000, Thailand
| | - Josef Hormes
- Center for Advanced Microstructures and Devices (CAMD), Louisiana State University, 6980 Jefferson Hwy, Baton Rouge, LA, 70806, USA.,Institute of Physics, University of Bonn, 53115, Bonn, Germany
| | - Alexander Prange
- Microbiology and Food Hygiene, Department of Food Sciences, Niederrhein University of Applied Sciences, Rheydter Strasse 277, 41065, Mönchengladbach, Germany. .,Institute for Virology and Microbiology, University of Witten/Herdecke, 58448, Witten, Germany. .,Center for Advanced Microstructures and Devices (CAMD), Louisiana State University, 6980 Jefferson Hwy, Baton Rouge, LA, 70806, USA.
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Transformation of CuO Nanoparticles in the Aquatic Environment: Influence of pH, Electrolytes and Natural Organic Matter. NANOMATERIALS 2017; 7:nano7100326. [PMID: 29036921 PMCID: PMC5666491 DOI: 10.3390/nano7100326] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 10/11/2017] [Accepted: 10/11/2017] [Indexed: 11/19/2022]
Abstract
Many studies have shown the effect of solution chemistry on the environmental behavior of metal-based nanoparticles (NPs), except CuO NPs. Here, we investigated the agglomeration, sedimentation, dissolution, and speciation of CuO NPs by varying pH, ionic strength, ionic valence, and natural organic matter (NOM). The results showed that as the pH moved away from 6, the size of CuO agglomerates decreased, along with the enhanced NP suspension stabilization, due to the increase of electrostatic repulsive force. Increasing ionic strength and valence intensified the agglomeration and sedimentation of CuO NPs because of the compression of electrical double layers. The presence of humic acid and citric acid enhanced the dispersion and stabilization of CuO NP suspension, but l-cysteine showed a different impact. Decreasing pH, increasing ionic strength and all NOM improved the dissolution of CuO NPs, but the divalent electrolyte (CaCl2) inhibited the Cu2+ release from CuO NPs compared to the monovalent electrolyte (NaCl). In addition, X-ray absorption near edge structure (XANES) analysis demonstrated that the presence of l-cysteine transformed more than 30% of CuO NPs to Cu(I)-cysteine by coordinating with thiol group. This study can give us an in-depth understanding on the environmental behavior and fate of CuO NPs in the aquatic environment.
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Balestri F, Moschini R, Cappiello M, Mura U, Del-Corso A. Thiol oxidase ability of copper ion is specifically retained upon chelation by aldose reductase. J Biol Inorg Chem 2017; 22:559-565. [PMID: 28224255 DOI: 10.1007/s00775-017-1447-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/15/2017] [Indexed: 12/28/2022]
Abstract
Bovine lens aldose reductase is susceptible to a copper-mediated oxidation, leading to the generation of a disulfide bridge with the concomitant incorporation of two equivalents of the metal and inactivation of the enzyme. The metal complexed by the protein remains redox active, being able to catalyse the oxidation of different physiological thiol compounds. The thiol oxidase activity displayed by the enzymatic form carrying one equivalent of copper ion (Cu1-AR) has been characterized. The efficacy of Cu1-AR in catalysing thiol oxidation is essentially comparable to the free copper in terms of both thiol concentration and pH effect. On the contrary, the two catalysts are differently affected by temperature. The specificity of the AR-bound copper towards thiols is highlighted with Cu1-AR being completely ineffective in promoting the oxidation of both low-density lipoprotein and ascorbic acid.
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Affiliation(s)
- Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Antonella Del-Corso
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy.
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Maheshwaran D, Nagendraraj T, Manimaran P, Ashokkumar B, Kumar M, Mayilmurugan R. A Highly Selective and Efficient Copper(II) - “Turn-On” Fluorescence Imaging Probe forl-Cysteine. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601229] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Duraiyarasu Maheshwaran
- Bioinorganic Chemistry Laboratory/Physical Chemistry; School of Chemistry; Madurai Kamaraj University; 625021 Madurai Tamil Nadu India
| | - Thavasilingam Nagendraraj
- Bioinorganic Chemistry Laboratory/Physical Chemistry; School of Chemistry; Madurai Kamaraj University; 625021 Madurai Tamil Nadu India
| | - Paramasivam Manimaran
- School of Biotechnology; Madurai Kamaraj University; 625021 Madurai Tamil Nadu India
| | | | - Mukesh Kumar
- Solid State Physics Division; Physics Group; Bhabha Atomic Research Center; Mumbai Maharashtra India
| | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry; School of Chemistry; Madurai Kamaraj University; 625021 Madurai Tamil Nadu India
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Maheshwaran D, Priyanga S, Mayilmurugan R. Copper(ii)-benzimidazole complexes as efficient fluorescent probes forl-cysteine in water. Dalton Trans 2017; 46:11408-11417. [DOI: 10.1039/c7dt01895a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Copper(ii)-benzimidazole complexes could detectl-cysteine over other natural amino acids at pH 7.34 by a ‘turn-on’ fluorescence mechanismviathe reduction of Cu(ii) to Cu(i) followed by displacement with excellent selectivity.
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Affiliation(s)
- Duraiyarasu Maheshwaran
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Selvarasu Priyanga
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
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34
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Frank A, Wochnik AS, Bein T, Scheu C. A biomolecule-assisted, cost-efficient route for growing tunable CuInS2 films for green energy application. RSC Adv 2017. [DOI: 10.1039/c6ra27294k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A successful biomolecule-assisted, non-toxic solvothermal synthesis for CuInS2 on TCO substrate with desirable absorption behavior and band gaps is presented.
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Affiliation(s)
- Anna Frank
- Max-Planck-Institut für Eisenforschung GmbH
- 40237 Düsseldorf
- Germany
| | - Angela S. Wochnik
- Department of Chemistry
- Center for NanoScience (CeNS)
- Ludwig-Maximilians-Universität
- Munich
- Germany
| | - Thomas Bein
- Department of Chemistry
- Center for NanoScience (CeNS)
- Ludwig-Maximilians-Universität
- Munich
- Germany
| | - Christina Scheu
- Max-Planck-Institut für Eisenforschung GmbH
- 40237 Düsseldorf
- Germany
- Materials Analytics
- RWTH Aachen University
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35
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Adams MS, Dillon CT, Vogt S, Lai B, Stauber J, Jolley DF. Copper Uptake, Intracellular Localization, and Speciation in Marine Microalgae Measured by Synchrotron Radiation X-ray Fluorescence and Absorption Microspectroscopy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8827-39. [PMID: 27437565 DOI: 10.1021/acs.est.6b00861] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Metal toxicity to aquatic organisms depends on the speciation of the metal and its binding to the critical receptor site(s) (biotic ligand) of the organism. The intracellular nature of the biotic ligand for Cu in microalgal cells was investigated using the high elemental sensitivity of microprobe synchrotron radiation X-ray fluorescence (SR-XRF) and X-ray absorption near-edge spectroscopy (XANES). The marine microalgae, Ceratoneis closterium, Phaeodactylum tricornutum, and Tetraselmis sp. were selected based on their varying sensitivities to Cu (72-h 50% population growth inhibitions of 8-47 μg Cu/L). Intracellular Cu in control cells was similar for all three species (2.5-3.2 × 10(-15) g Cu/cell) and increased 4-fold in C. closterium and Tetraselmis sp. when exposed to copper, but was unchanged in P. tricornutum (72-h exposure to 19, 40, and 40 μg Cu/L, respectively). Whole cell microprobe SR-XRF identified endogenous Cu in the central compartment (cytoplasm) of control (unexposed) cells. After Cu exposure, Cu was colocated with organelles/granules dense in P, S, Ca, and Si and this was clearly evident in thin sections of Tetraselmis sp. XANES indicated coexistence of Cu(I) and Cu(II) in control and Cu-exposed cells, with the Cu ligand (e.g., phytochelatin) in P. tricornutum different from that in C. closterium and Tetraselmis sp. This study supports the hypothesis that Cu(II) is reduced to Cu(I) and that polyphosphate bodies and phytochelatins play a significant role in the internalization and detoxification of Cu in marine microalgae.
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Affiliation(s)
- Merrin S Adams
- Centre for Environmental Contaminants Research, CSIRO Land and Water Flagship , Locked Bag 2007, Kirrawee 2232, New South Wales, Australia
- School of Chemistry, University of Wollongong , Wollongong 2522, New South Wales, Australia
| | - Carolyn T Dillon
- School of Chemistry, University of Wollongong , Wollongong 2522, New South Wales, Australia
| | - Stefan Vogt
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Barry Lai
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Jennifer Stauber
- Centre for Environmental Contaminants Research, CSIRO Land and Water Flagship , Locked Bag 2007, Kirrawee 2232, New South Wales, Australia
| | - Dianne F Jolley
- School of Chemistry, University of Wollongong , Wollongong 2522, New South Wales, Australia
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36
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Khan Z, Obaid AY. Seedless, copper-induced synthesis of stable Ag/Cu bimetallic nanoparticles and their optical properties. RSC Adv 2016. [DOI: 10.1039/c5ra26732c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this study, we demonstrate a sensitive and selective method for the seedless synthesis of Ag@Cu bimetallic nano-structured material based on the competitive coordination chemistry of cysteine with Cu2+ and Ag+.
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Affiliation(s)
- Zaheer Khan
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah
- Saudi Arabia
| | - Abdullah Yousif Obaid
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah
- Saudi Arabia
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37
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Castañeda-Arriaga R, Alvarez-Idaboy JR, Mora-Diez N. Theoretical study of copper complexes with lipoic and dihydrolipoic acids. RSC Adv 2016. [DOI: 10.1039/c6ra23553k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Cu(ii) complex with doubly-deprotonated dihydrolipoic acid has antioxidant capacity, since it is able to slow down by two orders the first step of the Haber–Weiss cycle reducing the potential damage caused by ˙OH radical formation.
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Affiliation(s)
- Romina Castañeda-Arriaga
- Facultad de Química
- Departamento de Física y Química Teórica
- Universidad Nacional Autónoma de México
- Mexico
- Department of Chemistry
| | - J. Raul Alvarez-Idaboy
- Facultad de Química
- Departamento de Física y Química Teórica
- Universidad Nacional Autónoma de México
- Mexico
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39
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Real-time monitoring of “self-oxidation” of cysteine in presence of Cu2+: novel findings in the oxidation mechanism. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1577-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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40
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Aliaga ME, López-Alarcón C, Bridi R, Speisky H. Redox-implications associated with the formation of complexes between copper ions and reduced or oxidized glutathione. J Inorg Biochem 2015; 154:78-88. [PMID: 26277412 DOI: 10.1016/j.jinorgbio.2015.08.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 07/03/2015] [Accepted: 08/05/2015] [Indexed: 02/08/2023]
Abstract
Binding of copper by reduced glutathione (GSH) is generally seen as a mechanism to lower, if not abolish, the otherwise high electrophilicity and redox activity of its free ions. In recent years, however, this concept has been contradicted by new evidence revealing that, rather than stabilizing free copper ions, its binding to GSH leads to the formation of a Cu(I)-[GSH]2 complex capable of reducing molecular oxygen into superoxide. It is now understood that, under conditions leading to the removal of such radicals, the Cu(I)-[GSH]2 complex is readily oxidized into Cu(II)-GSSG. Interestingly, in the presence of a GSH excess, the latter complex is able to regenerate the superoxide-generating capacity of the complex it originated from, opening the possibility that a GSH-dependent interplay exists between the reduced and the oxidized glutathione forms of these copper-complexes. Furthermore, recent evidence obtained from experiments conducted in non-cellular systems and intact mitochondria indicates that the Cu(II)-GSSG complex is also able to function in a catalytic manner as an efficient superoxide dismutating- and catalase-like molecule. Here we review and discuss the most relevant chemical and biological evidence on the formation of the Cu(I)-[GSH]2 and Cu(II)-GSSG complexes and on the potential redox implications associated with their intracellular occurrence.
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Affiliation(s)
- Margarita E Aliaga
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago 6094411, Chile.
| | - Camilo López-Alarcón
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago 6094411, Chile
| | - Raquel Bridi
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago 6094411, Chile
| | - Hernán Speisky
- Nutrition and Food Technology Institute, University of Chile, Santiago, Chile; Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile.
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41
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Quintanova C, Keri RS, Chaves S, Santos MA. Copper(II) complexation of tacrine hybrids with potential anti-neurodegenerative roles. J Inorg Biochem 2015; 151:58-66. [PMID: 26119099 DOI: 10.1016/j.jinorgbio.2015.06.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 06/05/2015] [Accepted: 06/06/2015] [Indexed: 12/22/2022]
Abstract
The complexity and multifactorial nature of neurodegenerative diseases turn quite difficult the development of adequate drugs for their treatment. Multi-target analogues, in conjugation with natural moieties, have been developed in order to combine acetylcholinesterase (AChE) inhibition with antioxidant properties, metal-binding capacity and inhibition of amyloid-β (Aβ) aggregation. Due to the recent interest on natural-based drugs and also the importance of studying the role of transition metal ions in the disease process, we herein evaluate the copper chelating capacity and inhibitory ability for self- and Cu-induced Aβ1-42 aggregation of two nature-base hybrid model compounds obtained from conjugation of a tacrine moiety with a S-allylcystein (1) or S-propargylcystein (2) moiety. Both compounds show a moderate chelating power towards Cu(II) (pCu 7.13-7.51, CL/CCu=10, CCu=10(-6)M, pH7.4), with predominant formation of 1:1 complex species (CuL, CuH-1L) for which the coordination sphere involves the N-amide and the NH2 amine of the cysteine derivative as well as the NH of tacrine. The compounds are able to improve the inhibition of Aβ aggregation in the presence of Cu(II) and this is slightly more relevant for the allyl derivative (1), a stronger copper chelator, than for the propargyl (2). Moreover, the presence of a chloro atom in the tacrine moiety and the size of the chain length between the two NH groups appeared also to improve the inhibition capacity for Aβ aggregation.
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Affiliation(s)
- Catarina Quintanova
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Rangappa S Keri
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal; Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka 562112, India
| | - Sílvia Chaves
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - M Amélia Santos
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
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Tan QG, Wang Y, Wang WX. Speciation of Cu and Zn in Two Colored Oyster Species Determined by X-ray Absorption Spectroscopy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:6919-6925. [PMID: 25936404 DOI: 10.1021/es506330h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In oysters, Cu and Zn concentration can reach extraordinarily high (1-2% of tissue dry weights), leading to intense green or blue colors in oyster tissues. It is thus puzzling how oysters detoxify the excessively accumulated metals. Here, we used X-ray absorption spectroscopy to examine the Cu and Zn speciation in two "colored" oysters (Crassostrea hongkongensis and Crassostrea sikamea) collected from a severely metal-contaminated estuary. In contaminated oysters, we found a much higher proportion of tissue Cu and Zn as oxygen- or nitrogen-bonded species, contrasting to the sulfur-bonded (thiolate) species in normal oysters. Speciation of Cu and Zn in mantle was similar to that in gills, both of which were different from that in the digestive gland. In C. sikamea, the difference of metal speciation between normal and contaminated individuals was of similar pattern but less pronounced than that in C. hongkongensis. In normal oysters, Cu existed mainly as Cu(I) bound to sulfur, whereas in contaminated oysters mainly as Cu(II) bound to oxygen or nitrogen. Our study provided direct and semiquantitative information on the changes of metal speciation in contaminated oysters, indicating that oysters could efficiently detoxify the excessively accumulated Cu and Zn by storing them in oxygen- and nitrogen-bonded complexes in metal-rich environments.
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Affiliation(s)
- Qiao-Guo Tan
- †Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, College of Environment and Ecology, Xiamen University, Xiamen, Fujian 361102, China
| | - Yu Wang
- ‡Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Wen-Xiong Wang
- †Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, College of Environment and Ecology, Xiamen University, Xiamen, Fujian 361102, China
- §Division of Life Science, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong
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44
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Zaghal MH, Bani Saeed MS, Abdel Hamid AAG, Ali BF. Bis-Chelated Pd(II)-Amino Acid Complexes: Substitution Reactions of cis-Dichlorobis(benzonitrile)Palladium(II) with Amino Acids. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/15533174.2013.819895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Basem F. Ali
- Department of Chemistry, Al al-Bayt University, Mafraq, Jordan
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45
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Nazari AM, Cox PW, Waters KE. Copper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubbles. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Pereira F, Vázquez M, Debán L, Aller A. Spectrometric characterisation of the solid complexes formed in the interaction of cysteine with As(III), Th(IV) and Zr(IV). Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Rouff AA, Eaton TT, Lanzirotti A. Heavy metal distribution in an urban wetland impacted by combined sewer overflow. CHEMOSPHERE 2013; 93:2159-2164. [PMID: 24012138 DOI: 10.1016/j.chemosphere.2013.07.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/22/2013] [Accepted: 07/28/2013] [Indexed: 06/02/2023]
Abstract
The heavy metal content and distribution in an urban wetland affected by combined sewer overflow (CSO) discharge during dry conditions was evaluated. Metals identified in the CSO discharge were also measured upstream and downstream of the CSO. Metals were detected in the acid-extractable fraction of the wetland sediments and the roots of Phragmites australis plants. Sediment from the banks of a pool created by the CSO, and from a clay bed upstream were found to be moderately contaminated with Cu, Pb and Zn. Micro X-ray fluorescence (μ-XRF) of Phragmites roots from the CSO banks showed a correlation in the spatial distribution of Fe and Mn, attributed to the formation of mineral plaques on the root surface. Micro X-ray absorption near edge spectroscopy (μ-XANES) revealed that Cu and Zn were complexed with the organic ligands phytate and cysteine. The findings indicated that continuous discharge from the CSO is a source of heavy metals to the wetland. Metals bound to sediments are susceptible to remobilization and subsequent transport, whereas those associated with Phragmites roots may be more effectively sequestered. These observations provide insight into the behavior of heavy metals in urban areas where CSOs discharge into wetlands.
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Affiliation(s)
- Ashaki A Rouff
- School of Earth and Environmental Sciences, Queens College City University of New York, 65-30 Kissena Blvd., Queens, NY 11367, USA.
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48
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Parsons JG, Dokken KM, McClure J, Gardea-Torresdey JL. FTIR, XAS, and XRD study of cadmium complexes with l-cysteine. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.04.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lu L, Liu A, Chen F, Wang X. X-ray absorption fine structure of artificial antigens for cadmium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 82:345-350. [PMID: 21839671 DOI: 10.1016/j.saa.2011.07.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 07/05/2011] [Accepted: 07/18/2011] [Indexed: 05/31/2023]
Abstract
Immunoassay technology as a quick and large-scale screening method to detect metal ions in foods and environmental samples has rapidly been developed due to several advantages over conventional instrument-intensive methods. Unlike biomacromolecule, metal ions are haptens without immunogenicity, so successful preparation of artificial antigens is the first critical step for establishing immunoassay methods for them. In the current paper, cadmium ions were conjugated to BSA and OVA, respectively, using bifunctional chelator, p-SCN-Bn-DTPA. The ultraviolet analysis indicated that the maximum absorption peak of Cd-p-SCN-DTPA-BSA and Cd-p-SCN-DTPA-OVA had a small peak shift and an apparent absorbance increase compared to that of BSA and OVA, and the extents of substitution of ɛ-amino in both conjugates were 51.2% and 58.6%, respectively. In addition, the EXAFS of conjugates implied that Cd(2+) coordinated with N and O atoms of DTPA in artificial antigens, the coordination type and number of Cd-DTPA, Cd-p-SCN-Bn-DTPA-BSA, Cd-p-SCN-Bn-DTPA-OVA were the same. XANES region and geometries of the three compounds were also same. These results implied that the three antigens had the similar local structure and atomic geometry. This was the first time that the XAFS was attempted for the identification of artificial heavy metal ion antigens.
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Affiliation(s)
- Liang Lu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei Province, PR China
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Kopittke PM, Menzies NW, de Jonge MD, McKenna BA, Donner E, Webb RI, Paterson DJ, Howard DL, Ryan CG, Glover CJ, Scheckel KG, Lombi E. In situ distribution and speciation of toxic copper, nickel, and zinc in hydrated roots of cowpea. PLANT PHYSIOLOGY 2011; 156:663-73. [PMID: 21525332 PMCID: PMC3177266 DOI: 10.1104/pp.111.173716] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The phytotoxicity of trace metals is of global concern due to contamination of the landscape by human activities. Using synchrotron-based x-ray fluorescence microscopy and x-ray absorption spectroscopy, the distribution and speciation of copper (Cu), nickel (Ni), and zinc (Zn) was examined in situ using hydrated roots of cowpea (Vigna unguiculata) exposed to 1.5 μm Cu, 5 μm Ni, or 40 μm Zn for 1 to 24 h. After 24 h of exposure, most Cu was bound to polygalacturonic acid of the rhizodermis and outer cortex, suggesting that binding of Cu to walls of cells in the rhizodermis possibly contributes to the toxic effects of Cu. When exposed to Zn, cortical concentrations remained comparatively low with much of the Zn accumulating in the meristematic region and moving into the stele; approximately 60% to 85% of the total Zn stored as Zn phytate within 3 h of exposure. While Ni concentrations were high in both the cortex and meristem, concentrations in the stele were comparatively low. To our knowledge, this is the first report of the in situ distribution and speciation of Cu, Ni, and Zn in hydrated (and fresh) plant tissues, providing valuable information on the potential mechanisms by which they are toxic.
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Affiliation(s)
- Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia.
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