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Zheng Y, Cui Y, Ruan Q, Zhao Y, Hou H, Zhou Y, Ling C, Wang J, Chen Z, Guo X. Heavily Doped Carbon Nitride Nanocrystal Promotes Visible-Near-Infrared Photosynthesis of Hydrogen Peroxide with Near-Unit Photon Utilization. ACS NANO 2024; 18:14583-14594. [PMID: 38722840 DOI: 10.1021/acsnano.4c02387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Direct photosynthesis of hydrogen peroxide (H2O2) from water and oxygen represents an intriguing alternative to the current indirect process involving the reduction and oxidation of quinones. However, limited light utilization and sluggish charge transfer largely impede overall photocatalytic efficiency. Herein, we present a heavily doped carbon nitride (CNKLi) nanocrystal for efficient and selective photoproduction of H2O2 via a two-electron oxygen reduction reaction (ORR) pathway. CNKLi induces metal-to-ligand charge transfer (MLCT) and electron trapping, which broadens the light absorption to the visible-near-infrared (vis-NIR) spectrum and prolongs the photoelectron lifetime to the microsecond time scale with an exceptional charge diffusion length of ∼1200 nm. Near-unit photoutilization with an apparent quantum yield (AQY) of 100% for H2O2 generation is achieved below 420 nm. Impressively, CNKLi exhibits an appreciable AQY of 16% at 700 nm, which reaches the absorption capacity (∼16%), thus suggesting a near-unit photon utilization <700 nm. In situ characterization and theoretical calculations reveal the facilitated charge transfer from K+ to the heptazine ring skeleton. These findings provide an approach to improve the photosynthetic efficiency of direct H2O2 preparation in the vis-NIR region and expand applications for driving kinetically slow and technologically desirable oxidations or high-value chemical generation.
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Affiliation(s)
- Yanmei Zheng
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Cui
- School of Physics, Southeast University, Nanjing 211189, China
| | - Qiushi Ruan
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Yuhong Zhao
- Collaborative Innovation Center of Ministry of Education and Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Hua Hou
- School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Yong Zhou
- School of Physics, Nanjing University, Nanjing 210046, China
| | - Chongyi Ling
- School of Physics, Southeast University, Nanjing 211189, China
| | - Jinlan Wang
- School of Physics, Southeast University, Nanjing 211189, China
| | - Zupeng Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xinli Guo
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
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Mondal S, Karar M, Dey N. Dye-surfactant co-assembly as the chromogenic indicator for nanomolar level detection of Cu(I) ions via a color-changing response. J Mater Chem B 2023; 11:4111-4120. [PMID: 37165919 DOI: 10.1039/d3tb00115f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Polyaromatic amphiphilic probes have been developed, that can be involved in chromogenic detection of Cu+ ions in anionic micelles. A rapid change in solution color from yellow to orange was observed in the presence of Cu+ ions. The detection limit was found at the nanomolar range. To the best of our knowledge, this is the first report of the visible detection of Cu+ ions in aqueous medium using anionic micelles as a stabilizing agent. Interestingly, the compound can also detect Cu+ ions, generated in situ from physiological redox processes. The mechanistic investigation suggests that the probe molecule forms a diamagnetic tetrahedral complex with the Cu+ ion, coordinating through a pyridyl ketone unit. In addition, we have also followed the interaction with Cu+ on a bilayer surface made of anionic phospholipids. Further, a Cu2+-probe ensemble is used to assay the reducing ability of different biogenic thiols depending upon the pKa of their sulfhydryl (-SH) group. This allows us to determine the amount of reducing thiols present in human urine samples. Considering the high sensitivity of the present system, we screened water samples collected from different natural sources for Cu+ ions. Nearly 100% recovery values with considerably small relative standard deviations (<5%) indicate that the present system is indeed suitable for real-life sample analysis. Finally, low-cost, reusable, chemically-modified paper strips have been developed for rapid, on-location detection of Cu+ ions.
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Affiliation(s)
- Sourav Mondal
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Hyderabad-500078, India.
| | - Monaj Karar
- Department of Science and Humanities, MLR Institute of Technology, Hyderabad, Telangana-500043, India
| | - Nilanjan Dey
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Hyderabad-500078, India.
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Mulder AJ, Tilbury RD, Werrett MV, Wright PJ, Patel P, Becker T, Jones F, Stagni S, Jia G, Massi M, Buntine MA. Ligand-Mediated Control of the Surface Oxidation States of Copper Nanoparticles Produced by Laser Ablation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5156-5168. [PMID: 36995293 DOI: 10.1021/acs.langmuir.3c00225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
We report on studies that demonstrate how the chemical composition of the surface of copper nanoparticles (CuNPs) - in terms of percentage copper(I/II) oxides - can be varied by the presence of N-donor ligands during their formation via laser ablation. Changing the chemical composition thus allows systematic tuning of the surface plasmon resonance (SPR) transition. The trialed ligands include pyridines, tetrazoles, and alkylated tetrazoles. CuNPs formed in the presence of pyridines, and alkylated tetrazoles exhibit a SPR transition only slightly blue shifted with respect to CuNPs formed in the absence of any ligand. On the other hand, the presence of tetrazoles results in CuNPs characterized by a significant blue shift of the order of 50-70 nm. By comparing these data also with the SPR of CuNPs formed in the presence of carboxylic acids and hydrazine, this work demonstrates that the blue shift in the SPR is due to tetrazolate anions providing a reducing environment to the nascent CuNPs, thus preventing the formation of copper(II) oxides. This conclusion is further supported by the fact that both AFM and TEM data indicate only small variations in the size of the nanoparticles, which is not enough to justify a 50-70 nm blue-shift of the SPR transition. High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) studies further confirm the absence of Cu(II)-containing CuNPs when prepared in the presence of tetrazolate anions.
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Affiliation(s)
- Ashley J Mulder
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Rhys D Tilbury
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Melissa V Werrett
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Phillip J Wright
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Payal Patel
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
- School of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Thomas Becker
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Franca Jones
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Stefano Stagni
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, viale del Risorgimento 4, Bologna 40136, Italy
| | - Guohua Jia
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Massimiliano Massi
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
| | - Mark A Buntine
- Department of Chemistry, Curtin University, GPO Box U1987 Perth, WA 6845, Australia
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Wang L, Zhang J, Zhang Y, Yu H, Qu Y, Yu J. Inorganic Metal-Oxide Photocatalyst for H 2 O 2 Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104561. [PMID: 34716646 DOI: 10.1002/smll.202104561] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/18/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is a mild but versatile oxidizing agent with extensive applications in bleaching, wastewater purification, medical treatment, and chemical synthesis. The state-of-art H2 O2 production via anthraquinone oxidation is hardly considered a cost-efficient and environment-friendly process because it requires high energy input and generates hazardous organic wastes. Photocatalytic H2 O2 production is a green, sustainable, and inexpensive process which only needs water and gaseous dioxygen as the raw materials and sunlight as the power source. Inorganic metal oxide semiconductors are good candidates for photocatalytic H2 O2 production due to their abundance in nature, biocompatibility, exceptional stability, and low cost. Progress has been made to enhance the photocatalytic activity toward H2 O2 production, however, H2 O2 photosynthesis is still in the laboratory research phase since the productivity is far from satisfaction. To inspire innovative ideas for boosting the H2 O2 yield in photocatalysis, the most well-studied metal oxide photocatalysts are selected and the modification strategies to improve their activity are listed. The mechanisms for H2 O2 production over modified photocatalysts are discussed to highlight the facilitating role of the modification methods. Besides, methods for the quantification of H2 O2 and associated radical intermediates are provided to guide future studies in this field.
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Affiliation(s)
- Linxi Wang
- School of Materials Science & Engineering, Xi'an Polytechnic University, Jinhua South Road 19, Xi'an, Shaanxi, 710048, P. R. China
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Jianjun Zhang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Yong Zhang
- College of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi, 435003, P. R. China
| | - Huogen Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Yinhu Qu
- School of Materials Science & Engineering, Xi'an Polytechnic University, Jinhua South Road 19, Xi'an, Shaanxi, 710048, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
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Plasma-Tuned nitrogen vacancy graphitic carbon nitride sphere for efficient photocatalytic H 2O 2 production. J Colloid Interface Sci 2021; 609:75-85. [PMID: 34894556 DOI: 10.1016/j.jcis.2021.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitride (CN) is a promising photocatalyst for sustainable energy conversion. Meanwhile, N vacancies are useful for H2O2 generation; however, they are hard to control. In this study, the N vacancy CN sphere (NVCNS) is synthesized by H2 plasma treatment to tune the NV. The as-synthesized NVCNS exhibits an efficient and stable photocatalytic H2O2 yield of 4413.1 μmol gcat-1h-1, which is 2.5 and 4.6 times higher than that of CNS (1766.4 μmol gcat-1h-1) and bulk CN (956.6 μmol gcat-1h-1), respectively, using a Xe lamp with an intensity of 100 mWcm-2. In particular, the charges recombination rate is remarkably reduced by introducing N defect state, promoting electron accumulation and O2 adsorption, through theoretical calculation and experiments. Furthermore, the NV creates abundant unsaturated sites and induces strong interlayer interactions, leading to effective electronic excitation and the promotion of charge transport.
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Eremina JA, Smirnova KS, Klyushova LS, Berezin AS, Lider EV. Synthesis and cytotoxicity evaluation of copper(II) complexes with polypyridines and 5-benzyltetrazole. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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7
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Eremina JA, Ermakova EA, Smirnova KS, Klyushova LS, Berezin AS, Sukhikh TS, Zubenko AA, Fetisov LN, Kononenko KN, Lider EV. Cu(II), Co(II), Mn(II) complexes with 5-phenyltetrazole and polypyridyl ligands: Synthesis, characterization and evaluation of the cytotoxicity and antimicrobial activity. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Patra SA, Mohanty M, Banerjee A, Kesarwani S, Henkel F, Reuter H, Dinda R. Protein binding and cytotoxic activities of monomeric and dimeric oxido-vanadium(V) salan complexes: Exploring the solution behavior of monoalkoxido-bound oxido-vanadium(V) complex. J Inorg Biochem 2021; 224:111582. [PMID: 34450411 DOI: 10.1016/j.jinorgbio.2021.111582] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/04/2021] [Accepted: 08/12/2021] [Indexed: 02/09/2023]
Abstract
Three ONNO donor tetradentate diamino bis(phenolato) "salan" ligands, N, N'-dimethyl-N, N'-bis-(5-chloro-2-hydroxy-3-methyl-benzyl)-1,2-diaminoethane (H2L1), N, N'-dimethyl-N, N'-bis-(5-chloro-2-hydroxy-3-isopropyl-6-methyl-benzyl)-1,2-diamino-ethane (H2L2) and N, N'-bis-(5-chloro-2-hydroxy-3-isopropyl-6-methyl-benzyl)-1,2-diaminocyclohexane (H2L3) have been synthesized by following Mannich condensation reaction. Reaction of these ligands with their corresponding vanadium metal precursors gave one oxidomethoxidovanadium(V) [VVOL1(OCH3)] (1) and two monooxido-bridged divanadium (V, V) complexes [VVOL2-3]2(μ-O) (2-3). The complexes were characterized by IR, UV-vis, NMR and ESI mass spectrometry. Also, the structure of all the complexes (1-3) was confirmed by the Single-Crystal X-ray diffraction analysis, which revealed a distorted octahedral geometry around the metal centres. The solution behavior of the [VVOL1(OCH3)] (1) reveals the formation of two different types of V(V) species in solution, the structurally characterized compound 1 and its corresponding monooxido-bridged divanadium (V, V) complex [VVOL1]2(μ-O), which was further studied by IR, and NMR spectroscopy. The electrochemical behavior of all the complexes was evaluated through cyclic voltammetry. Interaction of the salan-V(V) complexes with human serum albumin (HSA) and bovine serum albumin (BSA) were analysed through fluorescence quenching, UV-vis absorption titration, synchronous fluorescence, circular dichroism studies, and förster resonance energy transfer (FRET). Finally, the in vitro cytotoxicity of the complexes was investigated against MCF-7 and HT-29 and NIH-3T3 cell lines. Cytotoxicity value of complexes in both MCF-7 and HT-29 follows the same trend that is 3 > 1 > 2 which is in line with protein binding affinity of the complexes.
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Affiliation(s)
- Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Monalisa Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Atanu Banerjee
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Shivani Kesarwani
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Felix Henkel
- Institute of Chemistry of New Materials, University of Osnabrück, Barbarastraße 6, 49069 Osnabruck, Germany
| | - Hans Reuter
- Institute of Chemistry of New Materials, University of Osnabrück, Barbarastraße 6, 49069 Osnabruck, Germany
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India.
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Nasrollahzadeh M, Nezafat Z, Bidgoli NSS, Shafiei N. Use of tetrazoles in catalysis and energetic applications: Recent developments. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Unraveling the binding mechanism of an Oxovanadium(IV) - Curcumin complex on albumin, DNA and DNA gyrase by in vitro and in silico studies and evaluation of its hemocompatibility. J Inorg Biochem 2021; 221:111402. [PMID: 33975249 DOI: 10.1016/j.jinorgbio.2021.111402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/09/2021] [Accepted: 02/13/2021] [Indexed: 11/20/2022]
Abstract
An oxovanadium(IV) - curcumin based complex, viz. [VO(cur)(2,2´-bipy)(H2O)] where cur is curcumin and bipy is bipyridine, previously synthesized, has been studied for interaction with albumin and DNA. Fluorescence emission spectroscopy was used to evaluate the interaction of the complex with bovine serum albumin (BSA) and the BSA-binding constant (Kb) was calculated to be 2.56 x 105 M-1, whereas a single great-affinity binding site was revealed. Moreover, the hemocompatibility test demonstrated that the complex presented low hemolytic fraction (mostly below 1%), in all concentrations tested (0-250 μΜ of complex, 5% DMSO) assuring a safe application in interaction with blood. The binding of the complex to DNA was also investigated using absorption, fluorescence, and viscometry methods indicating a binding through a minor groove mode. From competitive studies with ethidium bromide the apparent binding constant value to DNA was estimated to be 4.82 x 106 M-1. Stern-Volmer quenching phenomenon gave a ΚSV constant [1.92 (± 0.05) x 104 M-1] and kq constant [8.33 (± 0.2) x 1011 M-1s-1]. Molecular docking simulations on the crystal structure of BSA, calf thymus DNA, and DNA gyrase, as well as pharmacophore analysis for BSA target, were also employed to study in silico the ability of [VO(cur)(2,2´-bipy)(H2O)] to bind to these target bio-macromolecules and explain the observed in vitro activity.
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11
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Synthesis and crystal structures of cytotoxic mixed-ligand copper(II) complexes with alkyl tetrazole and polypyridine derivatives. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120169] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Chhabra V, Kumar Kundu B, Ranjan R, Pragti, Mobin SM, Mukhopadhyay S. Coligand driven efficiency of catecholase activity and proteins binding study of redox active copper complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119389] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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The effective photocatalytic water splitting to simultaneously produce H2 and H2O2 over Pt loaded K-g-C3N4 catalyst. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2019.12.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Banerjee A, Dash SP, Mohanty M, Sanna D, Sciortino G, Ugone V, Garribba E, Reuter H, Kaminsky W, Dinda R. Chemistry of mixed-ligand oxidovanadium(IV) complexes of aroylhydrazones incorporating quinoline derivatives: Study of solution behavior, theoretical evaluation and protein/DNA interaction. J Inorg Biochem 2019; 199:110786. [PMID: 31377474 DOI: 10.1016/j.jinorgbio.2019.110786] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 01/15/2023]
Abstract
A series of eight hexacoordinated mixed-ligand oxidovanadium(IV) complexes [VO(Lx)(LN-N)] (1-8), where Lx = L1 - L4 are four differently substituted ONO donor aroylhydrazone ligands and LN-N are N,N-donor bases like 2,2'-bipyridine (bipy) (1, 3, 5 and 7) and 1,10-phenanthroline (phen) (2, 4, 6 and 8), have been reported. All synthesized complexes have been characterized by various physicochemical techniques and molecular structures of 1 and 6 were determined by X-ray crystallography. With a view to evaluate the biological activity of the VIVO species, the behavior of the systems VIVO2+/Lx, VIVO2+/Lx/bipy and VIVO2+/Lx/phen was studied as a function of pH in a mixture of H2O/DMSO 50/50 (v/v). DFT calculations allowed finding out the relative stability of the tautomeric forms of the ligands, and predicting the structure of vanadium complexes and their EPR parameters. To study their interaction with proteins, firstly the ternary systems VIVO2+/L1,2 with 1-methylimidazole, which is a good model for histidine binding, were examined. Subsequently the interaction of the complexes with lysozyme (Lyz), cytochrome c (Cyt) and bovine serum albumin (BSA) was studied. The results indicate that the complexes showed moderate binding affinity towards BSA, while no interaction takes place with lysozyme and cytochrome c. This could be explained with the higher number of accessible coordinating and polar residues for BSA than for Lyz and Cyt. Further, the complexes were also evaluated for their DNA binding propensity through UV-vis absorption titration and fluorescence spectral studies. These results were consistent with BSA binding affinity and showed moderate binding affinity towards CT-DNA.
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Affiliation(s)
- Atanu Banerjee
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Subhashree P Dash
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India; Department of Basic Sciences, Parala Maharaja Engineering College, Sitalapalli, Brahmapur, Odisha 761003, India
| | - Monalisa Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Daniele Sanna
- Istituto CNR di Chimica Biomolecolare, Trav. La Crucca 3, I-07040 Sassari, Italy
| | - Giuseppe Sciortino
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Barcelona, Spain; Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - Valeria Ugone
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy.
| | - Hans Reuter
- Institute of Chemistry of New Materials, University of Osnabrück, Barbarastraße 6, 49069 Osnabruck, Germany
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, Odisha, India.
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15
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Efficient oxidation of benzene catalyzed by Cu(II) tetrazolato complexes under mild conditions. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Kundu BK, Ranjan R, Mukherjee A, Mobin SM, Mukhopadhyay S. Mannich base Cu(II) complexes as biomimetic oxidative catalyst. J Inorg Biochem 2019; 195:164-173. [PMID: 30954693 DOI: 10.1016/j.jinorgbio.2019.03.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/23/2019] [Accepted: 03/28/2019] [Indexed: 11/16/2022]
Abstract
Galactose Oxidase (GOase) and catechol oxidase (COase) are the metalloenzymes of copper having monomeric and dimeric sites of coordination, respectively. This paper summarizes the results of our studies on the structural, spectral and catalytic properties of new mononuclear copper (II) complexes [CuL(OAc)] (1), and [CuL2] (2), (HL = 2,4‑dichloro‑6‑{[(2'‑dimethyl‑aminoethyl)methylamino]methyl}‑phenol) which can mimic the functionalities of the metalloenzymes GOase and COase. The structure of the compounds has been elucidated by X-ray crystallography and the mimicked Cu(II) catalysts were further characterized by EPR. These mimicked models were used for GOase and COase catalysis. The GOase catalytic results were identified by GC-MS and, analyzed by HPLC at room temperature. The conversion of benzyl alcohol to benzaldehyde were significant in presence of a strong base, Bu4NOMe in comparison to the neutral medium. Apart from that, despite of being monomeric in nature, both the homogeneous catalysts are very prone to participate in COase mimicking oxidation reaction. Nevertheless, during COase catalysis, complex 1 was found to convert 3,5‑ditertarybutyl catechol (3,5-DTBC) to 3,5‑ditertarybutyl quinone (3,5-DTBQ) having greater rate constant, kcat or turn over number (TON) value over complex 2. The generation of reactive intermediates during COase catalysis were accounted by electrospray ionization mass spectrometry (ESI-MS). Through mechanistic approach, we found that H2O2 is the byproduct for both the GOase and COase catalysis, thus, confirming the generation of reactive oxygen species during catalysis. Notably, complex 1 having mono-ligand coordinating atmosphere has superior catalytic activity for both cases in comparison to complex 2, that is having di-ligand environment.
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Affiliation(s)
- Bidyut Kumar Kundu
- Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, India
| | - Rishi Ranjan
- Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, India
| | | | - Shaikh M Mobin
- Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, India
| | - Suman Mukhopadhyay
- Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, India; Discipline of Biosciences and Biomedical Engineering, School of Engineering, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, India.
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Li Z, Xiong N, Gu G. Fabrication of a full-spectrum-response Cu2(OH)2CO3/g-C3N4 heterojunction catalyst with outstanding photocatalytic H2O2 production performance via a self-sacrificial method. Dalton Trans 2019; 48:182-189. [DOI: 10.1039/c8dt04081h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Over the past few decades, near infrared light (NIR), as an important part of sunlight, has seldom been utilized in photocatalytic reactions.
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Affiliation(s)
- Zheng Li
- College of Chemistry
- Chemical Engineering
- and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
| | - Nanni Xiong
- College of Chemistry
- Chemical Engineering
- and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
| | - Guizhou Gu
- College of Chemistry
- Chemical Engineering
- and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
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18
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Liang H, Fang L, Hu S. Construction of a wide-spectrum-driven V N-g-C 3N 4/Cu 2(OH) 2CO 3 heterojunction catalyst from VIS to NIR light via the in situ self-sacrificial method: the effect of oxygen on the N 2 photofixation ability. NEW J CHEM 2019. [DOI: 10.1039/c9nj01306g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, an N vacancy-doped g-C3N4/Cu2(OH)2CO3 (VN-GCN/CuCOH) heterojunction catalyst with superior wide-spectrum-driven (from VIS to NIR) N2 photofixation ability was synthesized via the in situ self-sacrificial method.
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Affiliation(s)
- Hongyu Liang
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Lei Fang
- Daqing Chemical Research Centre of Petrochemical Research Institute
- Daqing
- China
| | - Shaozheng Hu
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
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19
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Patra D, Paul S, Majumder I, Sepay N, Bera S, Kundu R, Drew MGB, Ghosh T. Exploring the effect of substituent in the hydrazone ligand of a family of μ-oxidodivanadium(v) hydrazone complexes on structure, DNA binding and anticancer activity. Dalton Trans 2018; 46:16276-16293. [PMID: 29138774 DOI: 10.1039/c7dt03585c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The reaction of 2-hydroxybenzoylhydrazine (H2bh) separately with equimolar amounts of [VIVO(aa)2] and [VIVO(ba)2] in CHCl3 afforded the complexes [VO3(HL1)2] (1) and [VO3(HL2)2] (2) respectively in good to excellent yield ((HL1)2- and (HL2)2- represent respectively the dianionic form of 2-hydroxybenzoylhydrazones of acetylacetone (H3L1) and benzoylacetone (H3L2) (general abbreviation H3L)). From X-ray structure analysis, the VV-O-VV angle was found to be ∼115° and 180° in 1 and 2 respectively. Upon one-electron reduction selectively at one V centre at an appropriate potential, each of 1 and 2 generated mixed-valence [(HL)VVO-(μ-O)-OVIV(HL)]- species 1A and 2A respectively, which showed valence delocalization at room temperature and localization at 77 K, and the VIV-O-VV bond angles were calculated to be 177.5° and 180° respectively. The intercalative mode of binding of the two complexes 1 and 2 with CT DNA has been suggested by UV-visible spectroscopy (Kb = 7.31 × 105 M-1 and 8.71 × 105 M-1 respectively for 1 and 2), fluorescence spectroscopy (Ksv = 6.85 × 105 M-1 and 8.53 × 105 M-1 respectively for 1 and 2) and circular dichroism spectroscopy. Such intercalative mode of binding of these two complexes with CT DNA and HPV DNA has also been confirmed by molecular docking study. Both complexes 1 and 2 exhibited promising anti-cancer activity against SiHa cervical cancer cells with IC50 values of 28 ± 0.5 μM and 25 ± 0.5 μM respectively for 24 h which is significantly better than that of widely used cisplatin (with IC50 value of 63.5 μM). Nuclear staining experiments reveal that these complexes kill the SiHa cells through apoptotic mode. It is interesting to note that these two complexes are non-toxic to normal T293 cell line. Complex 2 showed higher DNA binding ability with CT DNA and HPV DNA as well as better anti-cancer properties towards SiHa cervical cancer cells in comparison to complex 1, a fact which can be explained by considering the lower energy of LUMO (which favours electron transition from DNA to the metal complex) and also the higher surface area of complex 2 in comparison to complex 1 due to the presence of one extra electron-withdrawing phenyl group in the former.
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Affiliation(s)
- Debashis Patra
- Post Graduate Department of Chemistry, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata-700118, India.
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20
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Li X, Zhang J, Zhou F, Zhang H, Bai J, Wang Y, Wang H. Preparation of N-vacancy-doped g-C 3 N 4 with outstanding photocatalytic H 2 O 2 production ability by dielectric barrier discharge plasma treatment. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63046-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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21
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Wang Y, Hu S, Li Q, Gu G, Zhao Y, Liang H, Li W. One step synthesis of high-efficiency AgBr–Br–g-C3N4 composite catalysts for photocatalytic H2O2 production via two channel pathway. RSC Adv 2018; 8:36903-36909. [PMID: 35558951 PMCID: PMC9088936 DOI: 10.1039/c8ra07749e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/17/2018] [Indexed: 11/29/2022] Open
Abstract
In this work, a two-component modified AgBr–Br–g-C3N4 composite catalyst with outstanding photocatalytic H2O2 production ability is synthesized. XRD, UV-Vis, N2 adsorption, TEM, XPS, EPR and PL were used to characterize the obtained catalysts. The as-prepared AgBr–Br–g-C3N4 composite catalyst shows the highest H2O2 equilibrium concentration of 3.9 mmol L−1, which is 7.8 and 19.5 times higher than that of GCN and AgBr. A “two channel pathway” is proposed for this reaction system which causes the remarkably promoted H2O2 production ability. In addition, compared with another two-component modified catalyst, Ag–AgBr–g-C3N4, AgBr–Br–g-C3N4 composite catalyst displays the higher photocatalytic H2O2 production ability and stability. In this work, a two-component modified AgBr–Br–g-C3N4 composite catalyst with outstanding photocatalytic H2O2 production ability is synthesized.![]()
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Affiliation(s)
- Yunke Wang
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Shaozheng Hu
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Qiang Li
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Guizhou Gu
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Yanfeng Zhao
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Hongyu Liang
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Wei Li
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
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22
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Bai J, Sun Y, Li M, Yang L, Li J, Hu S. “Two channel” photocatalytic hydrogen peroxide production using g-C3N4 coated CuO nanorod heterojunction catalysts prepared via a novel molten salt-assisted microwave process. NEW J CHEM 2018. [DOI: 10.1039/c8nj02565g] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports g-C3N4 coated CuO nanorod catalysts with outstanding photocatalytic H2O2 production ability via a “two channel pathway”.
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Affiliation(s)
- Jin Bai
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Yongzhen Sun
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Meiyuan Li
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Lina Yang
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Jian Li
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Shaozheng Hu
- College of Chemistry
- Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
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23
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Wang H, Fang L, Hu S, Pei Y, Ma W. A green and facile method to prepare graphitic carbon nitride nanosheets with outstanding photocatalytic H2O2 production ability via NaClO hydrothermal treatment. NEW J CHEM 2018. [DOI: 10.1039/c8nj03044h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Transportation and transformation of photogenerated carriers during the photocatalytic process of graphitic carbon nitride (g-C3N4) are restricted by the low surface area and insufficient charge separation efficiency.
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Affiliation(s)
- Hui Wang
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Lei Fang
- Daqing Chemical Research Center of Petrochemical Research Institute
- PetroChina
- Daqing
- China
| | - Shaozheng Hu
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Yanbo Pei
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Wentao Ma
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
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24
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Patra D, Paul S, Sepay N, Kundu R, Ghosh T. Structure-activity relationship on DNA binding and anticancer activities of a family of mixed-ligand oxidovanadium(V) hydrazone complexes. J Biomol Struct Dyn 2017; 36:4143-4155. [DOI: 10.1080/07391102.2017.1409652] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Debashis Patra
- Department of Chemistry, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
| | - Subhabrata Paul
- Department of Botany, University of Calcutta, 35 Ballyguange Circular Road, Kolkata 700019, India
| | - Nayim Sepay
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Rita Kundu
- Department of Botany, University of Calcutta, 35 Ballyguange Circular Road, Kolkata 700019, India
| | - Tapas Ghosh
- Department of Chemistry, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
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25
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Saha M, Vyas KM, Martins LM, Martins NM, Pombeiro AJ, Mobin SM, Bhattacherjee D, Bhabak KP, Mukhopadhyay S. Copper(II) tetrazolato complexes: Role in oxidation catalysis and protein binding. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Wu G, Hu S, Han Z, Liu C, Li Q. The effect of Ni(i)–N active sites on the photocatalytic H2O2 production ability over nickel doped graphitic carbon nitride nanofibers. NEW J CHEM 2017. [DOI: 10.1039/c7nj03298f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work provides a strategy to improve the photocatalytic H2O2 production ability by embedding Ni(i)–N sites into the g-C3N4 lattice.
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Affiliation(s)
- Guang Wu
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Shaozheng Hu
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Zheng Han
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Chuntao Liu
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Qiang Li
- College of Chemistry, Chemical Engineering, and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
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27
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Saha M, Malviya N, Das M, Choudhuri I, Mobin SM, Pathak B, Mukhopadhyay S. Effect on catecholase activity and interaction with biomolecules of metal complexes containing differently tuned 5-substituted ancillary tetrazolato ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Malviya N, Mandal P, Das M, Ganguly R, Mukhopadhyay S. Nickel tetrazolato complexes synthesized by microwave irradiation: Catecholase like activity and interaction with biomolecules. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1260121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Novina Malviya
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Poulami Mandal
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Mriganka Das
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore, Singapore
| | - Suman Mukhopadhyay
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
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