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Chi G, Shuai D, Li J, Chen X, Yang H, Zhao M, Jiang Z, Wang L, Chen B. Mechanism of melanogenesis inhibition by Keggin-type polyoxometalates. NANOSCALE 2023; 15:14543-14550. [PMID: 37609952 DOI: 10.1039/d3nr02303f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Abnormal melanin overproduction can result in hyperpigmentation syndrome in human skin diseases and enzymatic browning of fruits and vegetables. Recently, our group found that Keggin-type polyoxometalates (POMs) can efficiently inhibit tyrosinase activity. However, it remains unclear whether Keggin-type POMs exhibit optimal effects in vivo. Additionally, the inhibitory effect and mechanism of action of POMs on cellular tyrosinase activity and melanogenesis have been rarely reported. Here we demonstrate that our screened and synthesised PMo11Zn and GaMo12 show superior inhibitory effects on melanin formation as well as inhibition of cellular tyrosinase activity compared to other Keggin-type POMs. Intriguingly, we reveal that Keggin-type POMs competitively bind to tyrosinase mainly through more interactions with Cu2+ ions and the amino acid residue is capable of forming van der Waals, cation-π and hydrogen bonds, resulting in a reversible non-covalent complex formation. Our findings provide valuable insights into the design, synthesis and screening of polyoxometalates as multifunctional metallodrugs and food preservatives against hyperpigmentation.
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Affiliation(s)
- Guoxiang Chi
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Die Shuai
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Jiaxin Li
- School of Life Sciences, Jilin University, Changchun 130012, PR China
| | - Xiangsong Chen
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Han Yang
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Meijuan Zhao
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Zedong Jiang
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Li Wang
- College of Ocean Food and Bioengineering, Jimei University, Xiamen 361021, PR China.
| | - Bingnian Chen
- Xiang'an Hospital of Xiamen University, Xiamen 361021, PR China.
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2
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Maalaoui A, Agwamba EC, Louis H, Mathias GE, Rzaigui M, Akriche S. Combined Experimental and Computational Study of V-Substituted Lindqvist Polyoxotungstate: Screening by Docking for Potential Antidiabetic Activity. Inorg Chem 2023; 62:14279-14290. [PMID: 37616561 PMCID: PMC10481374 DOI: 10.1021/acs.inorgchem.3c01651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Indexed: 08/26/2023]
Abstract
In the current work, a novel vanadotungstate compound, (C6H9N2)4[V2W4O19]·2H2O (1), is isolated by a simple stepwise synthesis method and characterized by a combined experimental and computational study. Molecular docking is conducted for the first time for this kind of substituted Lindqvist polyoxometalates to elucidate for potential antidiabetic activity. Hence, the modeling results revealed a significant docking score of the reported compound to bind to the active sites of α-glucosidase with the lowest binding energy of -5.7 kcal/mol, where the standard drug acarbose (ACB) had -4.6 kcal/mol binding energy. The stability of binding was enhanced by strong H-bonding, van der Waals, and electrostatic interactions occurring in the three-dimensional (3D) supramolecular network of polyanionic vanadotungstate subunits templated with organic moieties as shown by X-ray diffraction and Hirshfeld analyses. Furthermore, density functional theory (DFT) calculations supported with photophysical measurements are also discussed to predict the most chemical and biological reactivity. In this view, the complete description of electronic and biological features of (1) is enhanced by determination of the highest occupied molecular orbital (HOMO)/least unoccupied molecular orbital (LUMO) energy, electronic density, ionization potential, electron affinity, etc. These chemical descriptors, intermolecular interactions, docking score, and binding free energy estimation are essential in understanding the reactivity of this bioactive compound offering potential inhibition of the α-glucosidase enzyme.
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Affiliation(s)
- Ahlem Maalaoui
- Laboratory
of Materials Chemistry, Faculty of Sciences
of Bizerte, 7021 Zarzouna, Bizerte, Tunisia
| | - Ernest C. Agwamba
- Department
of Chemistry, Covenant University, Idiroko Road, P.M.B, Ota 1023, Ogun
State, Nigeria
- Computational
and Bio-Simulation Research Group, University
of Calabar, P.M.B. 1115, Calabar 540221, Nigeria
| | - Hitler Louis
- Computational
and Bio-Simulation Research Group, University
of Calabar, P.M.B. 1115, Calabar 540221, Nigeria
- Department
of Pure and Applied Chemistry, University
of Calabar, P.M.B. 1115, Calabar 540221, Nigeria
| | - Gideon E. Mathias
- Computational
and Bio-Simulation Research Group, University
of Calabar, P.M.B. 1115, Calabar 540221, Nigeria
- Department
of Pure and Applied Chemistry, University
of Calabar, P.M.B. 1115, Calabar 540221, Nigeria
| | - Mohamed Rzaigui
- Laboratory
of Materials Chemistry, Faculty of Sciences
of Bizerte, 7021 Zarzouna, Bizerte, Tunisia
| | - Samah Akriche
- Laboratory
of Materials Chemistry, Faculty of Sciences
of Bizerte, 7021 Zarzouna, Bizerte, Tunisia
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3
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Tian N, Chu D, Wang H, Yan H. Synthesis and anti-HIV-1 activity evaluation of Keggin-type polyoxometalates with amino acid as organic cations. Bioorg Med Chem Lett 2023; 91:129380. [PMID: 37331638 DOI: 10.1016/j.bmcl.2023.129380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/05/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023]
Abstract
Polyoxometalates (POMs), as a class of multinuclear metal oxygen clusters, have promising biological activities. And their amino acid derivatives will lead to better pharmacological activity by the diversity in structures and properties. With reference to the anti-HIV-1 activities of PM-19 (K7PTi2W10O40) and its pyridinium derivatives, a series of novel Keggin-type POMs with amino acid as organic cations (A7PTi2W10O40) were synthesized by hydrothermal synthetic method. The final products were characterized by 1H NMR, Elemental analyzes and single crystal X-ray diffraction. All the synthesized compounds were obtained in the yields of 44.3-61.7% and evaluated the cytotoxicity and anti-HIV-1 activity in vitro. Compared with the reference compound PM-19, the target compounds had a lower toxicity to TZM-bl cells and a higher inhibitory activity against HIV-1. Among them, compound A3 showed higher anti-HIV-1 activity with IC50 of 0.11 nM than that of PM-19 with 4.68 nM. This study demonstrated that combination of Keggin-type POMs and amino acids can be a new strategy to enhance the anti-HIV-1 biological activity of POMs. All results will be expected to helpful for developing more potent and effective HIV-1 inhibitors.
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Affiliation(s)
- Nana Tian
- Beijing Tide Pharmaceutical Co., Ltd, Beijing 100176, China
| | - Dongchen Chu
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hongjun Wang
- Beijing Tide Pharmaceutical Co., Ltd, Beijing 100176, China.
| | - Hong Yan
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
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4
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Liu H, Liu C, Zong X, Chen K, Yao W, Su Y, Qian H, Wang Y, Chou S, Hu Z, Zhang Z. Highiy Efficient Water Splitting with Polyoxometalate Coated on Deliberately Designed Porous Carbon as a Bifunctional Electrocatalyst. ChemistrySelect 2022. [DOI: 10.1002/slct.202202382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huimin Liu
- Key Laboratory for Functional Material School of Chemical Engineering University of Science and Technology Liaoning 185 Qianshan Zhong Road Anshan 114051 P. R. China
| | - Chang Liu
- Key Laboratory for Functional Material School of Chemical Engineering University of Science and Technology Liaoning 185 Qianshan Zhong Road Anshan 114051 P. R. China
| | - Xing Zong
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Ketong Chen
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Wangdong Yao
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Yunhao Su
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Huayun Qian
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Yongfei Wang
- Key Laboratory for Functional Material School of Chemical Engineering University of Science and Technology Liaoning 185 Qianshan Zhong Road Anshan 114051 P. R. China
- School of Materials and Metallurgy University of Science and Technology Liaoning Anshan Liaoning 114051 P. R. China
| | - Shulei Chou
- Institute for Carbon Neutralization College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 China
| | - Zhizhi Hu
- Key Laboratory for Functional Material School of Chemical Engineering University of Science and Technology Liaoning 185 Qianshan Zhong Road Anshan 114051 P. R. China
| | - Zhiqiang Zhang
- Key Laboratory for Functional Material School of Chemical Engineering University of Science and Technology Liaoning 185 Qianshan Zhong Road Anshan 114051 P. R. China
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Mamdouh AA, Ibrahim ABM, Reyad NEHA, Elsayed TR, Santos IC, Paulo A, Mahfouz RM. (NH4)2[Co(H2O)6]2V10O28·4H2O Vs. (NH4)2[Ni(H2O)6]2V10O28·4H2O: Structural, Spectral and Thermal Analyses and Evaluation of Their Antibacterial Activities. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02326-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractThis paper presents the synthesis of two cluster compounds {(NH4)2[Co(H2O)6]2V10O28·4H2O (C1) and (NH4)2[Ni(H2O)6]2V10O28·4H2O (C2)} which were obtained as single crystals suitable for XRD analysis that revealed their crystallization in the monoclinic (C2/c) and triclinic (P-1) space groups, respectively. Additionally, C1 and C2 were characterized using CHN analysis and FT-IR spectroscopy and their thermal decomposition mechanisms were investigated. The antibacterial activities of both compounds were determined against three human pathogenic bacterial strains {Bacillus cereus ATCC 33,018, Escherichia coli O157:H7 and Pseudomonas aeruginosa ATCC 9027} and one phytopathogenic bacterial strain {Ralstonia solanacearum}, while drug standards {chloramphenicol and streptomycin} were used as control. The inhibitory activity and the minimum inhibitory concentration (MIC) values of the tested compounds clearly indicated higher antibacterial activities of the nickel compound against B. cereus ATCC 33,018, E. coli O157 and R. solanacearum with MIC values of 3.150, 3.150 and 6.300 mg/ml, respectively. On the other hand, (NH4)2[Co(H2O)6]2V10O28·4H2O exhibited higher antibacterial activity against P. aeruginosa ATCC 9027 (MIC value of 6.300 mg/ml) in comparison to the nickel analog. In general, the measured activities are lower than that obtained for the standards except for the higher activity given by C2 in comparison to streptomycin against the R. solanacearum strain.
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6
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Liao Z, Wu Y, Cao S, Yuan S, Fang Y, Qin J, Shi J, Shi C, Ou C, Zhu J. Facile in situ decorating polyacrylonitrile membranes using polyoxometalates for enhanced separation performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Fabbian S, Giachin G, Bellanda M, Borgo C, Ruzzene M, Spuri G, Campofelice A, Veneziano L, Bonchio M, Carraro M, Battistutta R. Mechanism of CK2 Inhibition by a Ruthenium-Based Polyoxometalate. Front Mol Biosci 2022; 9:906390. [PMID: 35720133 PMCID: PMC9201508 DOI: 10.3389/fmolb.2022.906390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/18/2022] [Indexed: 12/03/2022] Open
Abstract
CK2 is a Ser/Thr protein kinase involved in many cellular processes such as gene expression, cell cycle progression, cell growth and differentiation, embryogenesis, and apoptosis. Aberrantly high CK2 activity is widely documented in cancer, but the enzyme is also involved in several other pathologies, such as diabetes, inflammation, neurodegeneration, and viral infections, including COVID-19. Over the last years, a large number of small-molecules able to inhibit the CK2 activity have been reported, mostly acting with an ATP-competitive mechanism. Polyoxometalates (POMs), are metal-oxide polyanionic clusters of various structures and dimensions, with unique chemical and physical properties. POMs were identified as nanomolar CK2 inhibitors, but their mechanism of inhibition and CK2 binding site remained elusive. Here, we present the biochemical and biophysical characterizing of the interaction of CK2α with a ruthenium-based polyoxometalate, [Ru4(μ-OH)2(μ-O)4(H2O)4 (γ-SiW10O36)2]10− (Ru4POM), a potent inhibitor of CK2. Using analytical Size-Exclusion Chromatography (SEC), Isothermal Titration Calorimetry (ITC), and SAXS we were able to unravel the mechanism of inhibition of Ru4POM. Ru4POM binds to the positively-charged substrate binding region of the enzyme through electrostatic interactions, triggering the dimerization of the enzyme which consequently is inactivated. Ru4POM is the first non-peptide molecule showing a substrate-competitive mechanism of inhibition for CK2. On the basis of SAXS data, a structural model of the inactivated (CK2α)2(Ru4POM)2 complex is presented.
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Affiliation(s)
- Simone Fabbian
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Gabriele Giachin
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Massimo Bellanda
- Department of Chemical Sciences, University of Padova, Padova, Italy
- CNR Institute of Biomolecular Chemistry, University of Padova, Padova, Italy
| | - Christian Borgo
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Maria Ruzzene
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- CNR Institute of Neurosciences, University of Padova, Padova, Italy
- *Correspondence: Maria Ruzzene, ; Mauro Carraro, ; Roberto Battistutta,
| | - Giacomo Spuri
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Ambra Campofelice
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Laura Veneziano
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Marcella Bonchio
- Department of Chemical Sciences, University of Padova, Padova, Italy
- Institute on Membrane Technology (ITM)-CNR, University of Padova, Padova, Italy
| | - Mauro Carraro
- Department of Chemical Sciences, University of Padova, Padova, Italy
- Institute on Membrane Technology (ITM)-CNR, University of Padova, Padova, Italy
- *Correspondence: Maria Ruzzene, ; Mauro Carraro, ; Roberto Battistutta,
| | - Roberto Battistutta
- Department of Chemical Sciences, University of Padova, Padova, Italy
- CNR Institute of Biomolecular Chemistry, University of Padova, Padova, Italy
- *Correspondence: Maria Ruzzene, ; Mauro Carraro, ; Roberto Battistutta,
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9
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Monoclinic- vs. triclinic-(NH4)2[Mg(H2O)6]2V10O28∙4H2O: Structural studies and variation in antibacterial activities with the polymorph type. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Zhang X, Lv R, Chen L, Sun R, Zhang Y, Sheng R, Du T, Li Y, Qi Y. A Multifunctional Janus Electrospun Nanofiber Dressing with Biofluid Draining, Monitoring, and Antibacterial Properties for Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12984-13000. [PMID: 35266385 DOI: 10.1021/acsami.1c22629] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Wound healing greatly affects patients' health and produces medical burden. Therefore, we developed a multifunctional electrospun nanofiber dressing, which can inhibit methicillin-resistant Staphylococcus aureus (MRSA), drain excessive biofluid to promote wound healing, and simultaneously monitor wound pH level. The polyoxometalate (α-K6P2W18O62·14H2O, P2W18) and oxacillin (OXA) are encapsulated in hydrophobic polylactide (PLA) nanofiber to synergistically inhibit MRSA. The phenol red (PSP) is encapsulated in hydrophilic polyacrylonitrile (PAN) nanofiber to sensitively indicate wound pH in situ. The PSP/PAN nanofiber is directly electrospun on the patterning OXA/P2W18/PLA nanofiber layer to form a Janus dressing. By taking advantage of the wettability difference between the two layers, the excess biofluid can be drained away from the wound. In addition, the Janus dressing exhibits good biocompatibility and accelerates wound healing via its antimicrobial activity and skin repairing function. This multifunctional Janus electrospun nanofiber dressing would be beneficial for wound management and treatment.
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Affiliation(s)
- Xinming Zhang
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Ruijuan Lv
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Lixia Chen
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Ruimeng Sun
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Yang Zhang
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Rongtian Sheng
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Ting Du
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Yuhan Li
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Yanfei Qi
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
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Chen X, Shuai D, Han Y, Luo D, Wang L, Chen B. Polyoxometalates as Potential Next‐Generation Metallodrugs in the melanogenesis inhibitor. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202100319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | | | - Li Wang
- Jimei University fisheries college Yindou Road 43 Jimei, Xiamen 361021 Xiamen CHINA
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12
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Preparation and Characterization of Biodegradable κ-Carrageenan Based Anti-Bacterial Film Functionalized with Wells-Dawson Polyoxometalate. Foods 2022; 11:foods11040586. [PMID: 35206062 PMCID: PMC8871218 DOI: 10.3390/foods11040586] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/10/2022] [Accepted: 02/15/2022] [Indexed: 01/27/2023] Open
Abstract
In the present study, an anti-bacterial film (Carr/POM film) was prepared through the incorporation of Wells-Dawson polyoxometalate K6[Mo18O62P2] into κ-carrageenan-based polymers using the tape-casting method. The mechanical properties, thermal stability, and morphology of the prepared film were characterized. The obtained results showed that incorporation of K6[Mo18O62P2] significantly affected the morphology and structure of the films. Moreover, the polyoxometalate-based film demonstrated desirable bactericidal activity against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive). Carr/POM (@8 mg/mL) film resulted in an obvious inhibition zone around the film in Kirby-Bauer disk diffusion test, which could also remove 99% of S. aureus and E. coli on plastic, glass, and stainless steel. In addition, this anti-bacterial film also demonstrated good biodegradability, which could be decomposed in soil in around 1 week. In conclusion, the polyoxometalate-based film showed good anti-bacterial property against food-borne pathogenic microbes, suggesting the prepared film has great potential to be developed as promising food packaging.
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13
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Wheel-shaped icosanuclear Cu-containing polyoxometalate catalyst: Mechanistic and stability studies on light-driven hydrogen generation. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63840-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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An inorganic-organic hybrid polyoxotungstogermanate based on [Ln(α-GeW11O39)2] dimer and dimethylammonium: Synthesis, crystal structure and photoluminescence property. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Xie X, Liu X, Ma Z, Zhao H, Li W. Cationic peptides template the assembly of polyoxometalates into ultrathin nanosheet with in-plane ordered arrangement. Dalton Trans 2022; 51:3839-3844. [DOI: 10.1039/d1dt04292k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrathin polyoxometalates nanosheets with in-plane alignment have been constructed in aqueous solution with the assistance of cationic peptides. Different POMs varying in topology, size, and charges could be templated into...
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Chen X, Shuai D, Jiang Z, Yang H, Luo D, Ni H, Wang L, Chen B. Study on the Regulation and Mechanism of the Vanadium Substituted Polyoxometalates of H 6[P 2Mo 18O 62] on Melanogenesis of Mouse Melanoma Cell B16. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21110528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Nisar A, Gul E, Rahman G, Wu Y, Bokhari TH, Rahman AU, Zafar A, Rana Z, Shah A, Hussain S, Maaz K, Javaid S, Karim S, Sun H, Ahmad M, Xiang G. Amphiphilic Polyoxometalate-CNTs Nanohybrid as Highly Efficient Enzyme-free Electrocatalyst for H2O2 Sensing. NEW J CHEM 2022. [DOI: 10.1039/d2nj03112d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid nanomaterials are emerging as a potential platform for the efficient detection of biomolecules, thus, the rational design of such materials has been widely explored. Polyoxometalates (POM) nanoclusters can serve...
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Light-guided tumor diagnosis and therapeutics: from nanoclusters to polyoxometalates. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.057] [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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19
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Pessoa JC, Santos MF, Correia I, Sanna D, Sciortino G, Garribba E. Binding of vanadium ions and complexes to proteins and enzymes in aqueous solution. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214192] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Cao Z, Yang W, Min X, Liu J, Cao X. Recent advances in synthesis and anti-tumor effect of organism-modified polyoxometalates inorganic organic hybrids. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108904] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Mubeena S, Annapareddy G, N M, Sarma M. Crystallographic and spectroscopic analysis of 9,10-bis-alkyl imidazolium anthracene hexatungstate supramolecular complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Two new hybrids built upon Wells-Dawson polyoxoanions and copper–ethylendiamine coordination cations. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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23
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Abdelhameed SAM, Ly HGT, Moons J, de Azambuja F, Proost P, Parac-Vogt TN. Expanding the reactivity of inorganic clusters towards proteins: the interplay between the redox and hydrolytic activity of Ce(iv)-substituted polyoxometalates as artificial proteases. Chem Sci 2021; 12:10655-10663. [PMID: 34447559 PMCID: PMC8356750 DOI: 10.1039/d1sc02760c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/05/2021] [Indexed: 12/13/2022] Open
Abstract
The ability of soluble metal-oxo clusters to specifically interact with protein surfaces makes them attractive as potential inorganic drugs and as artificial enzymes. In particular, metal-substituted polyoxometalates (MS-POMs) are remarkably selective in hydrolyzing a range of different proteins. However, the influence of MS-POMs' redox chemistry on their proteolytic activity remains virtually unexplored. Herein we report a highly site-selective hydrolysis of hemoglobin (Hb), a large tetrameric globular protein, by a Ce(iv)-substituted Keggin polyoxometalate (CeIVK), and evaluate the effect of CeIVK's redox chemistry on its reactivity and selectivity as an artificial protease. At pH 5.0, incubation of Hb with CeIVK resulted in strictly selective protein hydrolysis at six Asp-X bonds, two of which were located in the α-chain (α(Asp75-Leu76) and α(Asp94-Pro95)) and five at the β-chain (β(Asp51-Ala52), β(Asp68-Ser69), β(Asp78-Asp79), β(Asp98-Pro99) and β(Asp128-Phe129)). However, increasing the pH of the reaction mixture to 7.4 decreased the CeIVK hydrolytic reactivity towards Hb, resulting in the cleavage of only one peptide bond (β(Asp128-Phe129)). Combination of UV-Vis, circular dichroism and Trp fluorescence spectroscopy indicated similar interactions between Hb and CeIVK at both pH conditions; however, 31P NMR spectroscopy showed faster reduction of CeIVK into the hydrolytically inactive CeIIIK form in the presence of protein at pH 7.4. In agreement with these results, careful mapping of all hydrolyzed Asp-X bonds on the protein structure revealed that the lower reactivity toward the α-chain was consistent with the presence of more redox-active amino acids (Tyr and His) in this subunit in comparison with the β-chain. This points towards a link between the presence of the redox-active sites on the protein surface and efficiency and selectivity of redox-active MS-POMs as artificial proteases. More importantly, the study provides a way to tune the redox and hydrolytic reactivity of MS-POMs towards proteins through adjustment of reaction parameters like temperature and pH.
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Affiliation(s)
| | - Hong Giang T Ly
- KU Leuven, Department of Chemistry Celestijnenlaan 200F 3001 Leuven Belgium
- Department of Chemistry, College of Natural Sciences, Can Tho University Can Tho Vietnam
| | - Jens Moons
- KU Leuven, Department of Chemistry Celestijnenlaan 200F 3001 Leuven Belgium
| | | | - Paul Proost
- KU Leuven Department of Microbiology, Immunology, and Transplantation Herestraat 49 3000 Leuven Belgium
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Cui T, Qin L, Fu F, Xin X, Li H, Fang X, Lv H. Pentadecanuclear Fe-Containing Polyoxometalate Catalyst for Visible-Light-Driven Generation of Hydrogen. Inorg Chem 2021; 60:4124-4132. [PMID: 33621075 DOI: 10.1021/acs.inorgchem.1c00267] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The structurally new, carbon-free pentadecanuclear Fe-containing polyoxometalate, Na21[NaFe15(OH)12(PO4)4(A-α-SiW9O34)4]·85H2O (Na21-Fe15P4(SiW9)4), was synthesized using a facile one-pot, solution-based synthetic approach and systematically characterized by various spectroscopic techniques. Single-crystal X-ray diffraction reveals that the title complex is composed of two [Fe4(A-α-SiW9O34)] fragments and two [Fe3.5(A-α-SiW9O34)] fragments stabilized by four PO4 linkers in a tetrameric style with idealized Td point group symmetry. When coupling with (4,4'-ditert-butyl-2,2'-dipyridyl)-bis(coumarin)-iridium(III) hexafluorophosphate ([Ir(coumarin)2(dtbbpy)][PF6]) photosensitizer and triethanolamine (TEOA) sacrificial electron donor, polyoxoanion Fe15P4(SiW9)4 effectively catalyzed hydrogen production with a minimally optimized TON of 986, which represents, to our knowledge, one of the highest values among known Fe-substituted POM-catalyzed hydrogen production systems. Both a mercury-poisoning test and FT-IR characterizations proved the structural stability of Fe15P4(SiW9)4 catalyst under photocatalytic conditions. The photocatalytic mechanism of the present hydrogen-evolving system was investigated by time-solved luminescence and static emission quenching measurements.
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Affiliation(s)
- Tingting Cui
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Lin Qin
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Fangyu Fu
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Xing Xin
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Huijie Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Xikui Fang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Hongjin Lv
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
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25
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Tagliavini V, Honisch C, Serratì S, Azzariti A, Bonchio M, Ruzza P, Carraro M. Enhancing the biological activity of polyoxometalate-peptide nano-fibrils by spacer design. RSC Adv 2021; 11:4952-4957. [PMID: 35424453 PMCID: PMC8694496 DOI: 10.1039/d0ra10218k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 01/16/2021] [Indexed: 01/18/2023] Open
Abstract
Polyoxometalates (POMs) and peptides can be conjugated to yield novel bio-hybrids with potential application as nanodrugs. However, the observed POM-induced folding of the peptide prevents its availability towards biological targets. An Anderson-Evans POM was functionalized with a bombesin analog peptide and engineered by adding a tailored hydrophilic and anionic spacer between the two moieties, to make the targeting sequence more accessible and enable an unprecedented cancer cell recognition capability.
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Affiliation(s)
- Valeria Tagliavini
- Department of Chemical Sciences, Institute on Membrane Technology of CNR, University of Padova Padova Italy
| | - Claudia Honisch
- Institute of Biomolecular Chemistry of CNR Padova Unit Padova Italy
| | - Simona Serratì
- Nanotechnology Laboratory, IRCCS Istituto Tumori "Giovanni Paolo II" Viale Orazio Flacco, 65 70124 Bari Italy
| | - Amalia Azzariti
- Experimental Pharmacology Laboratory, IRCCS Istituto Tumori "Giovanni Paolo II" Viale Orazio Flacco, 65 70124 Bari Italy
| | - Marcella Bonchio
- Department of Chemical Sciences, Institute on Membrane Technology of CNR, University of Padova Padova Italy
| | - Paolo Ruzza
- Institute of Biomolecular Chemistry of CNR Padova Unit Padova Italy
| | - Mauro Carraro
- Department of Chemical Sciences, Institute on Membrane Technology of CNR, University of Padova Padova Italy
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26
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Carter OWL, Xu Y, Sadler PJ. Minerals in biology and medicine. RSC Adv 2021; 11:1939-1951. [PMID: 35424161 PMCID: PMC8693805 DOI: 10.1039/d0ra09992a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/21/2020] [Indexed: 01/08/2023] Open
Abstract
Natural minerals ('stone drugs') have been used in traditional Chinese medicines for over 2000 years, but there is potential for modern-day use of inorganic minerals to combat viral infections, antimicrobial resistance, and for other areas in need of new therapies and diagnostic aids. Metal and mineral surfaces on scales from milli-to nanometres, either natural or synthetic, are patterned or can be modified with hydrophilic/hydrophobic and ionic/covalent target-recognition sites. They introduce new strategies for medical applications. Such surfaces have novel properties compared to single metal centres. Moreover, 3D mineral particles (including hybrid organo-minerals) can have reactive cavities, and some minerals have dynamic movement of metal ions, anions, and other molecules within their structures. Minerals have a unique ability to interact with viruses, microbes and macro-biomolecules through multipoint ionic and/or non-covalent contacts, with potential for novel applications in therapy and biotechnology. Investigations of mineral deposits in biology, with their often inherent heterogeneity and tendency to become chemically-modified on isolation, are highly challenging, but new methods for their study, including in intact tissues, hold promise for future advances.
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Affiliation(s)
- Oliver W L Carter
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
- MAS CDT, Senate House, University of Warwick Coventry CV4 7AL UK
| | - Yingjian Xu
- GoldenKeys High-Tech Materials Co., Ltd, Building B, Innovation & Entrepreneurship Park Guian New Area Guizhou Province 550025 China
| | - Peter J Sadler
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
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27
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Ren C, Lu Z, Luo B, Yi X, Lin L, Xu L. Deeply reduced empty Keggin clusters [MoIVxMVI12−xO 40−xpy x] ( x = 3, 6; M = Mo, W; py = pyridine): synthesis, structures, and Lewis field catalysis. Inorg Chem Front 2021. [DOI: 10.1039/d1qi01080h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
First MoIV3-Keggin anions [MoIVxMVI12−xO40−xpyx]8− (M = Mo, W; x = 3, 6) display unprecedented empty Keggin structure caused by the weak u3-O coordinating capability of the [MoIV3O4] triads and LCF-dependent hydrogen transfer catalysis.
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Affiliation(s)
- Cuiming Ren
- School of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhihao Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Benlong Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xiaofeng Yi
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Lifang Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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28
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Zhang S, Ou F, Ning S, Cheng P. Polyoxometalate-based metal–organic frameworks for heterogeneous catalysis. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01407a] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
POM-based MOFs simultaneously possessing the virtues of POMs and MOFs exhibit excellent heterogeneous catalytic properties.
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Affiliation(s)
- Shaowei Zhang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of the Ministry of Education
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
- Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
| | - Fuxia Ou
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of the Ministry of Education
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
- Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
| | - Shiggang Ning
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of the Ministry of Education
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
- Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
| | - Peng Cheng
- College of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
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29
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Xu P, Zhang L, Jia X, Wen H, Wang X, Yang S, Hui J. A novel heterogeneous catalyst NH 2-MIL-88/PMo 10V 2 for the photocatalytic activity enhancement of benzene hydroxylation. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01056e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this work, heterogeneous catalyst NH2-MIL-88/PMo10V2-3 has shown the high hydroxylation activity of benzene under visible light (a 5 W LED), which mainly attributed to the production of hydroxyl radical(˙OH) and V5+/V4+ redox pair in the existence of electron (e−).
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Affiliation(s)
- PanPan Xu
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Liuxue Zhang
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Xu Jia
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Hao Wen
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Xiulian Wang
- School of Energy and Environment, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Suqing Yang
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
| | - Juxian Hui
- School of Materials and Chemical Engineering, Zhong yuan University of Technology, Zhengzhou, 450007, PR China
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