1
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Hannibal VD, Greb L. Tetra-Amido Macrocyclic Ligand (TAML) at Silicon(IV): A Structurally Constrained, Water-Soluble Silicon Lewis Superacid. J Am Chem Soc 2024. [PMID: 39223943 DOI: 10.1021/jacs.4c08015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Tetracoordinate silicon species are typically tetrahedral, weak Lewis acids, and often sensitive to moisture. In this study, we present a tetra-amido macrocyclic ligand (TAML)-substituted Si(IV), isolated as its bis(pyridine) adduct. Due to structural constraint toward anti van't-Hof/Le Bel geometry, this compound exhibits Lewis superacidity and effectively catalyzes the hydroboration of pyridine. Kinetic and computational analyses of the catalytic cycle reveal that TAML-Si(IV) acts as a hydride transfer agent, and the hydrido silicate key intermediate is isolated. Notably, the Lewis acid is highly soluble (5 g/L) and long-term stable in water. Unlike previously described silicon-H2O adducts, the bound water becomes substantially acidified, reaching the Bro̷nsted superacidity range. A comparison of water affinity versus pKa lowering confirms our previous theory of the strength and the effect of Lewis acids. Overall, the compound's unlimited water compatibility and its mechanistically understood catalytic efficiency mark significant progress in applying structural constraint strategies for p-block element-based catalysis, while the acidification touches critical aspects of zeolite and silica surface chemistry.
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Affiliation(s)
- Valentin D Hannibal
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 275, Heidelberg 69120, Germany
| | - Lutz Greb
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 275, Heidelberg 69120, Germany
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2
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Adams SR, Mackey MR, Ramachandra R, Deerinck TJ, Castillon GA, Phan S, Hu J, Boassa D, Ngo JT, Ellisman MH. Fe-TAMLs as a new class of small molecule peroxidase probes for correlated light and electron microscopy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.25.554352. [PMID: 37662194 PMCID: PMC10473768 DOI: 10.1101/2023.08.25.554352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
We introduce Fe-TAML, a small molecule-based peroxidase as a versatile new member of the correlated fluorescence and electron microscopy toolkit. The utility of the probe is demonstrated by high resolution imaging of newly synthesized DNA (through biorthogonal labeling), genetically tagged proteins (using HaloTag), and untagged endogenous proteins (via immunostaining). EM visualization in these applications is facilitated by exploiting Fe-TAML's catalytic activity for the deposition of localized osmiophilic precipitates based on polymerized 3,3'-diaminobenzidine. Optimized conditions for synthesizing and implementing Fe-TAML based probes are also described. Overall, Fe-TAML is a new chemical biology tool that can be used to visualize diverse biomolecular species along nanometer and micron scales within cells.
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3
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Palit D, Kundu S, Pain PK, Sarma R, Manna D. A Chemical Model of a TET Enzyme for Selective Oxidation of Hydroxymethyl Cytosine to Formyl Cytosine. Inorg Chem 2023. [PMID: 37339080 DOI: 10.1021/acs.inorgchem.3c00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Methylation/demethylation of cytosines in DNA is central to epigenetics, which plays crucial roles in the regulation of about half of all human genes. Although the methylation mechanism, which downregulates gene expression, has been sufficiently decoded; the demethylation pathway, which upregulates gene expression, still holds questions to be answered. Demethylation of 5-methylcytosine by ten-eleven translocation (TET) enzymes yields understudied but epigenetically relevant intermediates, 5-hydroxymethyl (5-hmC), 5-formyl (5-fC), and 5-carboxyl (5-caC) cytosines. Here we report an iron complex, FeIIITAML (TAML = tetraamido macrocyclic ligand), which can facilitate selective oxidation of 5-hmC to its oxidative derivatives by forming a high-valent Fe-oxo intermediate in the presence of H2O2 under physiologically relevant conditions. Detailed HPLC analyses supported by a wide reaction condition optimization for the 5-hmC → 5-fC oxidation provides us with a chemical model of the TET enzyme. This study shines light on future efforts for a better understanding of the roles of 5-hmC and the TET enzyme mechanism and potentially novel therapeutic methods.
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Affiliation(s)
- Dipanwita Palit
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP 462066, India
| | - Shubhankar Kundu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP 462066, India
| | - Pritam Kumar Pain
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP 462066, India
| | - Rajdeep Sarma
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP 462066, India
| | - Debasish Manna
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP 462066, India
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4
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Liu J, Ruan G, Ma W, Sun Y, Yu H, Xu Z, Yu C, Li H, Zhang CW, Li L. Horseradish peroxidase-triggered direct in situ fluorescent immunoassay platform for sensing cardiac troponin I and SARS-CoV-2 nucleocapsid protein in serum. Biosens Bioelectron 2022; 198:113823. [PMID: 34838374 PMCID: PMC8606172 DOI: 10.1016/j.bios.2021.113823] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/27/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022]
Abstract
Direct in situ fluorescent enzyme-linked immunosorbent assay (ELISA) is rarely investigated and reported. Herein, a direct in situ high-performance HRP-labeled fluorescent immunoassay platform was constructed. The platform was developed based on a rapid in situ fluorogenic reaction between Polyethyleneimine (PEI) and p-Phenylenediamine (PPD) analogues to generate fluorescent copolymer nanoparticles (FCNPs). The formation mechanism of FCNPs was found to be the oxidation of •OH radicals, which was further proved by nitrogen protection and scavenger of •OH radicals. Meantime, the fluorescence wavelength of FCNPs could be adjusted from 471 to 512 nm by introducing various substitution groups into the PPD structure. Using cardiac troponin I (cTnI) and SARS-CoV-2 nucleocapsid protein (N-protein) as the model antigens, the proposed fluorescent ELISA exhibited a wide dynamic range of 5-180 ng/mL and a low limit of detection (LOD) of 0.19 ng/mL for cTnI, and dynamic range of 0-120 ng/mL and a LOD of 0.33 ng/mL for SARS-CoV-2 N protein, respectively. Noteworthy, the proposed method was successful applied to evaluate the cTnI and SARS-CoV-2 N protein levels in serum with satisfied results. Therefore, the proposed platform paved ways for developing novel fluorescence-based HRP-labeled ELISA technologies and broadening biomarker related clinical diagnostics.
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Affiliation(s)
- Jinhua Liu
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China.
| | - Guotong Ruan
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Wenlin Ma
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Yujie Sun
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Haidong Yu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Zhihui Xu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, PR China
| | - Changmin Yu
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Hai Li
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Cheng-Wu Zhang
- School of Basic Medical Sciences, Shanxi Medical University, Xinjian Road, Taiyuan, 310003, PR China.
| | - Lin Li
- Institute of Advanced Materials (IAM), Key Laboratory of Flexible Electronics (KLOFE) Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China.
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5
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Chen G, Yu Y, Fu X, Wang G, Wang Z, Wu X, Ren J, Zhao Y. Microfluidic encapsulated manganese organic frameworks as enzyme mimetics for inflammatory bowel disease treatment. J Colloid Interface Sci 2021; 607:1382-1390. [PMID: 34583043 DOI: 10.1016/j.jcis.2021.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/03/2021] [Accepted: 09/03/2021] [Indexed: 12/17/2022]
Abstract
Metal organic frameworks (MOFs) with physicochemical properties and adjustable structures have been proposed as very attractive materials. The studies on development of such functional materials tended to fabricate featured MOF objects with fascinating catalytic capabilities to utilize their biomedical values. In this paper, we present novel biocompatible manganese metal organic framework (Mn-MOF)-based catalase mimetics with microfluidic microcapsule encapsulation for intravital inflammatory bowel disease (IBD) treatment. Phosphoserine, a component of the cell membrane, served as an organic ligand to ensure biocompatibility of Mn-MOF. Owing to the core-shell structure of the microcapsule, the Mn-MOF exhibited a well-organized distribution and controlled release features, which could protect them from gastric juice and provide function in the intestine. Upon reaching the sites of the inflammatory bowel, Mn-MOF could effectively scavenge reactive oxygen species (ROS) over-produced by neutrophils and macrophages under various gastrointestinal pH environments, protecting intestinal epithelial cells from ROS damage. The Mn-MOF-encapsulated microcapsules exhibited high performances in treating spontaneous IBD in interleukin-10-deficient mice by relieving the oxidative stress, reducing the inflammation, and restoring the intestinal barrier. These results indicate that the functional Mn-MOF-encapsulated microcapsules have practical applications in the treatment of ROS-associated diseases.
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Affiliation(s)
- Guopu Chen
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Yunru Yu
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210002, China; State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xiao Fu
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210002, China
| | - Gefei Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Zhiming Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Xiuwen Wu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China.
| | - Jianan Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China.
| | - Yuanjin Zhao
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China; Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210002, China; State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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6
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Somasundar Y, Burton AE, Mills MR, Zhang DZ, Ryabov AD, Collins TJ. Quantifying evolving toxicity in the TAML/peroxide mineralization of propranolol. iScience 2020; 24:101897. [PMID: 33364585 PMCID: PMC7753967 DOI: 10.1016/j.isci.2020.101897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/19/2020] [Accepted: 12/01/2020] [Indexed: 12/29/2022] Open
Abstract
Oxidative water purification of micropollutants (MPs) can proceed via toxic intermediates calling for procedures for connecting degrading chemical mixtures to evolving toxicity. Herein, we introduce a method for projecting evolving toxicity onto composite changing pollutant and intermediate concentrations illustrated through the TAML/H2O2 mineralization of the common drug and MP, propranolol. The approach consists of identifying the key intermediates along the decomposition pathway (UPLC/GCMS/NMR/UV-Vis), determining for each by simulation and experiment the rate constants for both catalytic and noncatalytic oxidations and converting the resulting predicted concentration versus time profiles to evolving composite toxicity exemplified using zebrafish lethality data. For propranolol, toxicity grows substantially from the outset, even after propranolol is undetectable, echoing that intermediate chemical and toxicity behaviors are key elements of the environmental safety of MP degradation processes. As TAML/H2O2 mimics mechanistically the main steps of peroxidase catalytic cycles, the findings may be relevant to propranolol degradation in environmental waters.
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Affiliation(s)
- Yogesh Somasundar
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Abigail E Burton
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Matthew R Mills
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - David Z Zhang
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Alexander D Ryabov
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Terrence J Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
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7
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Liang S, Xian Z, Yang H, Wang Z, Wang C, Shi X, Tian H. Rapid destruction of triclosan by Iron(III)-Tetraamidomacrocyclic ligand/hydrogen peroxide system. CHEMOSPHERE 2020; 261:127704. [PMID: 32721690 DOI: 10.1016/j.chemosphere.2020.127704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/16/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
Iron(III)-tetraamidomacrocyclic ligand (Fe(III)-TAML) activators can activate hydrogen peroxide to oxidize many kinds of organic pollutants. In this study, we investigated the degradation of triclosan, a widely used broad-spectrum bactericide, under the treatment of Fe(III)-TAML/H2O2 system at different pH conditions. We also studied the influence of natural organic matter (NOM) on the degradation process. Our results showed that complete removal of triclosan could be obtained within several minutes under the optimal conditions. The degradation of triclosan by Fe(III)-TAML/H2O2 system exhibited strong pH-dependence and the degradation rate increased with the increase in pH level from 7.0 to 10.0. When adding fulvic acid (FA) or humic acid (HA) in the reaction system, the degradation of triclosan could be suppressed slightly, and HA exhibited stronger inhibition than FA. Based on the analysis of reaction intermediates, phenoxyl radical reaction and ring open reaction were involved in the decomposition of triclosan. Significant inhibition of overall toxicity to Photobacterium phosphoreum further confirmed the high efficiency of Fe(III)-TAML/H2O2 system for the removal of antibiotic activities resulting from the parent triclosan molecule and its degradation products.
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Affiliation(s)
- Sijia Liang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Zeyu Xian
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Haotian Yang
- Springside Chestnut Hill Academy, 500 West Willow Grove Avenue, Philadelphia, PA, 19118, USA
| | - Ziyu Wang
- Jurong Country Garden School, Zhenjiang, 212400, PR China
| | - Chao Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Xiaoxia Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Haoting Tian
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resource and Environment, Linyi University, Linyi, 276005, PR China.
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8
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Frame HC, Somasundar Y, Warner GR, Ryabov AD, Collins TJ. Kinetics of catalytic oxidation of the potent aquatic toxin microcystin-LR by latest generation TAML activators. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1840562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hannah C. Frame
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Yogesh Somasundar
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Genoa R. Warner
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
- Department of Comparative Biosciences, University of Illinois, Urbana, IL, USA
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9
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Kundu S, Shen LQ, Somasundar Y, Annavajhala M, Ryabov AD, Collins TJ. TAML- and Buffer-Catalyzed Oxidation of Picric Acid by H 2O 2: Products, Kinetics, DFT, and the Mechanism of Dual Catalysis. Inorg Chem 2020; 59:13223-13232. [DOI: 10.1021/acs.inorgchem.0c01581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumen Kundu
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Longzhu Q. Shen
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, United Kingdom
| | - Yogesh Somasundar
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Medini Annavajhala
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D. Ryabov
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Terrence J. Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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10
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Somasundar Y, Lu IC, Mills MR, Qian LY, Olivares X, Ryabov AD, Collins TJ. Oxidative Catalysis by TAMLs: Obtaining Rate Constants for Non-Absorbing Targets by UV-Vis Spectroscopy. Chemphyschem 2020; 21:1083-1086. [PMID: 32291857 DOI: 10.1002/cphc.202000222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/13/2020] [Indexed: 11/07/2022]
Abstract
Understanding the catalysis of oxidative reactions by TAML activators of peroxides, i. e. iron(III) complexes of tetraamide macrocyclic ligands, advocated a spectrophotometric procedure for quantifying the catalytic activity of TAMLs for colorless targets (kII ', M-1 s-1 ), which is incomparably more advantageous in terms of time, cost, energy, and ecology than NMR, HPLC, UPLC, GC-MS and other similar techniques. Dyes Orange II or Safranin O (S) are catalytically bleached by non-excessive amount of H2 O2 in the presence of colorless substrates (S1 ) according to the rate law: -d[S]/dt=kI kII [H2 O2 ][S][TAML]/(kI [H2 O2 ]+kII [S]+kII '[S1 ]). The bleaching rate is thus a descending hyperbolic function of S1 : v=ab/(b+[S1 ]). Values of kII ' found from a and b for phenol and propranolol with commonly used TAML [FeIII {o,o'-C6 H4 (NCONMe2 CO)2 CMe2 }2 (OH2 )]+ are consistent with those for S1 (phenol, propranolol) obtained directly by UPLC. The study sends vital messages to enzymologists and environmentalists.
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Affiliation(s)
- Yogesh Somasundar
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Iris C Lu
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Matthew R Mills
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Lisa Y Qian
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Ximena Olivares
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Alexander D Ryabov
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Terrence J Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
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11
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Rasheed T, Rizwan K, Bilal M, Iqbal HMN. Metal-Organic Framework-Based Engineered Materials-Fundamentals and Applications. Molecules 2020; 25:E1598. [PMID: 32244456 PMCID: PMC7180910 DOI: 10.3390/molecules25071598] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/26/2020] [Accepted: 03/29/2020] [Indexed: 02/05/2023] Open
Abstract
Metal-organic frameworks (MOFs) are a fascinating class of porous crystalline materials constructed by organic ligands and inorganic connectors. Owing to their noteworthy catalytic chemistry, and matching or compatible coordination with numerous materials, MOFs offer potential applications in diverse fields such as catalysis, proton conduction, gas storage, drug delivery, sensing, separation and other related biotechnological and biomedical applications. Moreover, their designable structural topologies, high surface area, ultrahigh porosity, and tunable functionalities all make them excellent materials of interests for nanoscale applications. Herein, an effort has been to summarize the current advancement of MOF-based materials (i.e., pristine MOFs, MOF derivatives, or MOF composites) for electrocatalysis, photocatalysis, and biocatalysis. In the first part, we discussed the electrocatalytic behavior of various MOFs, such as oxidation and reduction candidates for different types of chemical reactions. The second section emphasizes on the photocatalytic performance of various MOFs as potential candidates for light-driven reactions, including photocatalytic degradation of various contaminants, CO2 reduction, and water splitting. Applications of MOFs-based porous materials in the biomedical sector, such as drug delivery, sensing and biosensing, antibacterial agents, and biomimetic systems for various biological species is discussed in the third part. Finally, the concluding points, challenges, and future prospects regarding MOFs or MOF-based materials for catalytic applications are also highlighted.
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Affiliation(s)
- Tahir Rasheed
- School of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Komal Rizwan
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan;
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Hafiz M. N. Iqbal
- School of Engineering and Sciences, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, NL CP 64849, Mexico
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12
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Li S, Wang L, Zhou R, Zhou C, Du H. Synthesis of a simplified iron(III) tetraamido macrocyclic ligand (Fe III-TAML) catalyst and its catalytic activity for degradation of dye wastewater by H 2O 2. J COORD CHEM 2020. [DOI: 10.1080/00958972.2019.1710138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shunlai Li
- College of Chemistry, Beijing University of Chemical Technology, Beijing, China
| | - Liaoyuan Wang
- College of Chemistry, Beijing University of Chemical Technology, Beijing, China
| | - Run Zhou
- College of Chemistry, Beijing University of Chemical Technology, Beijing, China
| | - Cheng Zhou
- College of Chemistry, Beijing University of Chemical Technology, Beijing, China
| | - Hongguang Du
- College of Chemistry, Beijing University of Chemical Technology, Beijing, China
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13
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Warner GR, Somasundar Y, Jansen KC, Kaaret EZ, Weng C, Burton AE, Mills MR, Shen LQ, Ryabov AD, Pros G, Pintauer T, Biswas S, Hendrich MP, Taylor JA, Vom Saal FS, Collins TJ. Bioinspired, Multidisciplinary, Iterative Catalyst Design Creates the Highest Performance Peroxidase Mimics and the Field of Sustainable Ultradilute Oxidation Catalysis (SUDOC). ACS Catal 2019. [DOI: 10.1021/acscatal.9b01409] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Genoa R. Warner
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Yogesh Somasundar
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Kyle C. Jansen
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Evan Z. Kaaret
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Cindy Weng
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Abigail E. Burton
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Matthew R. Mills
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Longzhu Q. Shen
- University of Cambridge, Downing Street, Cambridge CB2 3EJ, United Kingdom
| | - Alexander D. Ryabov
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Gabrielle Pros
- Department of Chemistry and Biochemistry, 600 Forbes Avenue, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Tomislav Pintauer
- Department of Chemistry and Biochemistry, 600 Forbes Avenue, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Saborni Biswas
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Michael P. Hendrich
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Julia A. Taylor
- Division of Biological Sciences, University of Missouri, Columbia, Missouri 65211, United States
| | - Frederick S. Vom Saal
- Division of Biological Sciences, University of Missouri, Columbia, Missouri 65211, United States
| | - Terrence J. Collins
- Institute for Green Science, Department of Chemistry, 4400 Fifth Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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14
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Ho XL, Das SP, Ng LKS, Ng AYR, Ganguly R, Soo HS. Cobalt Complex of a Tetraamido Macrocyclic Ligand as a Precursor for Electrocatalytic Hydrogen Evolution. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xian Liang Ho
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
- Solar Fuels Laboratory, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Siva Prasad Das
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
- Department of Chemistry, School of Science, RK University, Bhavnagar Highway, Kasturbadham, Rajkot 360020, Gujarat India
| | - Leonard Kia-Sheun Ng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Andrew Yun Ru Ng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Singapore 138634
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Han Sen Soo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
- Solar Fuels Laboratory, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
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15
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Bhakta S, Nayek A, Roy B, Dey A. Induction of Enzyme-like Peroxidase Activity in an Iron Porphyrin Complex Using Second Sphere Interactions. Inorg Chem 2019; 58:2954-2964. [DOI: 10.1021/acs.inorgchem.8b02707] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Snehadri Bhakta
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Abhijit Nayek
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Bijan Roy
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Abhishek Dey
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata, India 700032
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16
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Wei MJ, Fu JQ, Li B, Shao KZ, Zang HY, Wang XH, Su ZM. Metal–oxygen clusters as peroxidase mimics for their multifarious applications in colorimetric sensors. NEW J CHEM 2019. [DOI: 10.1039/c9nj02748c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Metal–oxygen cluster (Fe28) was certified to own inherent peroxidase-like performance, which displayed multi-functional applications in H2O2, glucose and dopamine detection.
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Affiliation(s)
- Mei-Jie Wei
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Jia-Qi Fu
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Bo Li
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Kui-Zhan Shao
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Hong-Ying Zang
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Xiao-Hong Wang
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Zhong-Min Su
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
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17
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Somasundar Y, Shen LQ, Hoane AG, Tang LL, Mills MR, Burton AE, Ryabov AD, Collins TJ. Structural, Mechanistic, and Ultradilute Catalysis Portrayal of Substrate Inhibition in the TAML–Hydrogen Peroxide Catalytic Oxidation of the Persistent Drug and Micropollutant, Propranolol. J Am Chem Soc 2018; 140:12280-12289. [DOI: 10.1021/jacs.8b08108] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yogesh Somasundar
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Longzhu Q. Shen
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, U.K
| | - Alexis G. Hoane
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Liang L. Tang
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Matthew R. Mills
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Abigail E. Burton
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D. Ryabov
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Terrence J. Collins
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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18
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Su H, Yu C, Zhou Y, Gong L, Li Q, Alvarez PJJ, Long M. Quantitative structure-activity relationship for the oxidation of aromatic organic contaminants in water by TAML/H 2O 2. WATER RESEARCH 2018; 140:354-363. [PMID: 29751317 DOI: 10.1016/j.watres.2018.04.062] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/23/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Tetra-amido macrocyclic ligand (TAML) activator is a functional analog of peroxidase enzymes, which activates hydrogen peroxide (H2O2) to form high valence iron-oxo complexes that selectively degrade persistent aromatic organic contaminants (ACs) in water. Here, we develop quantitative structure-activity relationship (QSAR) models based on measured pseudo first-order kinetic rate coefficients (kobs) of 29 ACs (e.g., phenols and pharmaceuticals) oxidized by TAML/H2O2 at neutral and basic pH values to gain mechanistic insight on the selectivity and pH dependence of TAML/H2O2 systems. These QSAR models infer that electron donating ability (EHOMO) is the most important AC characteristic for TAML/H2O2 oxidation, pointing to a rate-limiting single-electron transfer (SET) mechanism. Oxidation rates at pH 7 also depend on AC reactive indices such as fmin- and qH+, which respectively represent propensity for electrophilic attack and the most positive net atomic charge on hydrogen atoms. At pH 10, TAML/H2O2 is more reactive towards ACs with a lower hydrogen to carbon atoms ratio (#H:C), suggesting the significance of hydrogen atom abstraction. In addition, lnkobs of 14 monosubstituted phenols is negatively correlated with Hammett constants (σ) and exhibits similar sensitivity to substituent effects as horseradish peroxidase. Although accurately predicting degradation rates of specific ACs in complex wastewater matrices could be difficult, these QSAR models are statistically robust and help predict both relative degradability and reaction mechanism for TAML/H2O2-based treatment processes.
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Affiliation(s)
- Hanrui Su
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lidong Gong
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Qilin Li
- Department of Civil and Environmental Engineering, Rice University, Houston, TX 77005, United States
| | - Pedro J J Alvarez
- Department of Civil and Environmental Engineering, Rice University, Houston, TX 77005, United States
| | - Mingce Long
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Key Laboratory for Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China.
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19
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A nanoporous palladium(II) bridged coordination polymer acting as a peroxidase mimic in a method for visual detection of glucose in tear and saliva. Mikrochim Acta 2018; 185:245. [DOI: 10.1007/s00604-018-2776-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/16/2018] [Indexed: 10/17/2022]
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20
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Lim JH, Engelmann X, Corby S, Ganguly R, Ray K, Soo HS. C-H activation and nucleophilic substitution in a photochemically generated high valent iron complex. Chem Sci 2018; 9:3992-4002. [PMID: 29862004 PMCID: PMC5944818 DOI: 10.1039/c7sc05378a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/22/2018] [Indexed: 12/15/2022] Open
Abstract
The (photo) chemical oxidation of a (TAML)FeIII complex using outer-sphere oxidants results in valence tautomerisation and C–H activation governed by exogenous anions.
The photochemical oxidation of a (TAML)FeIII complex 1 using visible light generated Ru(bpy)33+ produces valence tautomers (TAML)FeIV (1+) and (TAML˙+)FeIII (1-TAML˙+), depending on the exogenous anions. The presence of labile Cl– or Br– results in a ligand-based oxidation and stabilisation of a radical-cationic (TAML˙+)FeIII complex, which subsequently leads to unprecedented C–H activation followed by nucleophilic substitution on the TAML aryl ring. In contrast, exogenous cyanide culminates in metal-based oxidation, yielding the first example of a crystallographically characterised S = 1 [(TAML)FeIV(CN)2]2– species. This is a rare report of an anion-dependent valence tautomerisation in photochemically accessed high valent (TAML)Fe systems with potential applications in the oxidation of pollutants, hydrocarbons, and water. Furthermore, the nucleophilic aromatic halogenation reaction mediated by (TAML˙+)FeIII represents a novel domain for high-valent metal reactivity and highlights the possible intramolecular ligand or substrate modification pathways under highly oxidising conditions. Our findings therefore shine light on high-valent metal oxidants based on TAMLs and other potential non-innocent ligands and open new avenues for oxidation catalyst design.
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Affiliation(s)
- Jia Hui Lim
- Energy Research Institute@NTU (ERI@N) , Nanyang Technological University , Interdisciplinary Graduate School , Research Techno Plaza , Singapore 63755.,Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 .
| | - Xenia Engelmann
- Humboldt-Universität zu Berlin , Institut für Chemie , Brook-Taylor-Straβe 2 , 12489 Berlin , Germany .
| | - Sacha Corby
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 . .,Imperial College London , Department of Chemistry , South Kensington Campus , London , SW7 2AZ , UK
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 .
| | - Kallol Ray
- Humboldt-Universität zu Berlin , Institut für Chemie , Brook-Taylor-Straβe 2 , 12489 Berlin , Germany .
| | - Han Sen Soo
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 . .,Singapore-Berkeley Research Initiative for Sustainable Energy , 1 Create Way , Singapore 138602.,Solar Fuels Laboratory , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798
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21
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Kojima T, Ogishima F, Nishibu T, Kotani H, Ishizuka T, Okajima T, Nozawa S, Shiota Y, Yoshizawa K, Ohtsu H, Kawano M, Shiga T, Oshio H. Intermediate-Spin Iron(III) Complexes Having a Redox-Noninnocent Macrocyclic Tetraamido Ligand. Inorg Chem 2018; 57:9683-9695. [DOI: 10.1021/acs.inorgchem.8b00037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takahiko Kojima
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
- CREST, Japan Science and Technology Agency, 4 Chome-1-8, Kawaguchi, Honcho, Saitama 332-0012, Japan
| | - Fumiya Ogishima
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Takahisa Nishibu
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Hiroaki Kotani
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Tomoya Ishizuka
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Toshihiro Okajima
- Kyushu Synchrotron Light Research Center, 8-7 Yayoigaoka, Tosu, Saga 841-0005, Japan
| | - Shunsuke Nozawa
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- CREST, Japan Science and Technology Agency, 4 Chome-1-8, Kawaguchi, Honcho, Saitama 332-0012, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - Hiroyoshi Ohtsu
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Masaki Kawano
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Takuya Shiga
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Hiroki Oshio
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
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22
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Sun J, Zhao J, Wang L, Li H, Yang F, Yang X. Inner Filter Effect-Based Sensor for Horseradish Peroxidase and Its Application to Fluorescence Immunoassay. ACS Sens 2018; 3:183-190. [PMID: 29260859 DOI: 10.1021/acssensors.7b00830] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Being an important model peroxidase, horseradish peroxidase (HRP) has been thoroughly understood, and the detection of HRP is not only directly related to peroxidase-triggered catalytic process, but also linked to the development of HRP-based enzyme-linked immunosorbent assay (ELISA). Herein, we have reported an unconventional fluorescent sensor for convenient assay of HRP activity based on the HRP-catalyzed specific conversion of p-phenylenediamine (PPD) into chromogenic PPDox with H2O2 as the oxidizing agent, accompanied by the fluorescence quenching effect on fluorescein. By combining UV-vis absorption spectrum, isothermal titration calorimetry, and fluorescence lifetime analysis, we have confirmed the inner filter effect as a main quenching mechanism in our proposed fluorescent assay. According to the intrinsic sensitivity of fluorescent sensor and high selectivity, our PPD/fluorescein-based sensing system can be utilized for real-time monitoring of the HRP activity in real biological samples. Furthermore, the unambiguous response mechanism and excellent sensing performance encourage us to extend such HRP assay into the HRP-based fluorescent ELISA, which has a broad prospect of application in fluorescent diagnosis of hepatocellular carcinoma (HCC) by sensing alpha-fetoprotein, the well-known serologic HCC marker.
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Affiliation(s)
- Jian Sun
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Jiahui Zhao
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Wang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Hongwei Li
- State
Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, Jilin 130012, China
| | - Fan Yang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xiurong Yang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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23
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Ellis WC, Ryabov AD, Fischer A, Hayden JA, Shen LQ, Bominaar EL, Hendrich MP, Collins TJ. Bis phenylene flattened 13-membered tetraamide macrocyclic ligand (TAML) for square planar cobalt(III). J COORD CHEM 2018; 71:1822-1836. [PMID: 31249429 DOI: 10.1080/00958972.2018.1487060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The preparation, characterization, and evaluation of a cobalt(III) complex with 13-membered tetraamide macrocyclic ligand (TAML) is described. This is a square-planar (X-ray) S = 1 paramagnetic (1H NMR) compound, which becomes an S = 0 diamagnetic octahedral species in excess d5-pyridine. Its one-electron oxidation at an electrode is fully reversible with the lowest E 1/2 value (0.66 V vs SCE) among all investigated CoIII TAML complexes. The oxidation results in a neutral blue species which is consistent with a CoIII/radical-cation ligand. The ease of oxidation is likely due to the two benzene rings incorporated in the ligand structure (whereas there is just one in many other CoIII TAMLs). The oxidized neutral species are unexpectedly EPR silent, presumably due to the π-stacking aggregation. However, they display eight-line hyperfine patterns in the presence of excess of 4-tert-butylpyridine or 4-tert-butyl isonitrile. The EPR spectra are more consistent with the CoIII/radical-cation ligand formulation rather than with a CoIV complex. Attempts to synthesize a similar vanadium complex under the same conditions as for cobalt using [VVO(OCHMe2)3] were not successful. TAML-free decavanadate was isolated instead.
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Affiliation(s)
- W Chadwick Ellis
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Alexander D Ryabov
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Andreas Fischer
- Inorganic Chemistry, department of Chemistry, Royal institute of Technology, Stockholm, Sweden
| | - Joshua A Hayden
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Longzhu Q Shen
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Emile L Bominaar
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Michael P Hendrich
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
| | - Terrence J Collins
- Department of Chemistry, Carnegie Mellon university, Pittsburgh, PA, USA
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24
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One step electro-oxidative preparation of graphene quantum dots from wood charcoal as a peroxidase mimetic. Talanta 2017; 173:36-43. [DOI: 10.1016/j.talanta.2017.05.061] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/20/2017] [Accepted: 05/23/2017] [Indexed: 01/25/2023]
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25
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Chandra B, Singh KK, Gupta SS. Selective photocatalytic hydroxylation and epoxidation reactions by an iron complex using water as the oxygen source. Chem Sci 2017; 8:7545-7551. [PMID: 29163909 PMCID: PMC5676249 DOI: 10.1039/c7sc02780j] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/02/2017] [Indexed: 11/23/2022] Open
Abstract
Iron complex catalysed selective and efficient photocatalytic hydroxylation and epoxidation reactions using water as the oxygen atom source has been reported.
The iron complex [(bTAML)FeIII–OH2]– (1) selectively catalyses the photocatalytic hydroxylation and epoxidation reactions of alkanes and alkenes, respectively, using water as the oxygen-atom source. Upon the oxidation of unactivated alkanes, which included several substrates including natural products, hydroxylation was observed mostly at the 3° C–H bonds with 3° : 2° selectivity up to ∼100 : 1. When alkenes were used as the substrates, epoxides were predominantly formed with high yields. In the presence of H218O, more than 90% of the 18O-labelled oxygen atoms were incorporated into the hydroxylated and epoxide product indicating that water was the primary oxygen source. Mechanistic studies indicate the formation of an active [{(bTAML)FeIV}2-μ-oxo]2– (2) dimer from the starting complex 1via PCET. The subsequent disproportionation of 2 upon addition of substrate, leading to the formation of FeV(O), renders the high selectivity observed in these reactions.
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Affiliation(s)
- Bittu Chandra
- Department of Chemical Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur , West Bengal , India-741246 .
| | - Kundan K Singh
- Department of Chemical Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur , West Bengal , India-741246 .
| | - Sayam Sen Gupta
- Department of Chemical Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur , West Bengal , India-741246 .
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26
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Ghosh M, Pattanayak S, Dhar BB, Singh KK, Panda C, Sen Gupta S. Selective C-H Bond Oxidation Catalyzed by the Fe-bTAML Complex: Mechanistic Implications. Inorg Chem 2017; 56:10852-10860. [PMID: 28841016 DOI: 10.1021/acs.inorgchem.7b00453] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Nonheme iron complexes bearing tetradentate N-atom-donor ligands with cis labile sites show great promise for chemoselective aliphatic C-H hydroxylation. However, several challenges still limit their widespread application. We report a mechanism-guided development of a peroxidase mimicking iron complex based on the bTAML macrocyclic ligand framework (Fe-bTAML: biuret-modified tetraamido macrocyclic ligand) as a catalyst to perform selective oxidation of unactivated 3° bonds with unprecedented regioselectivity (3°:2° of 110:1 for adamantane oxidation), high stereoretention (99%), and turnover numbers (TONs) up to 300 using mCPBA as the oxidant. Ligand decomposition pathways involving acid-induced demetalation were identified, and this led to the development of more robust and efficient Fe-bTAML complexes that catalyzed chemoselective C-H oxidation. Mechanistic studies, which include correlation of the product formed with the FeV(O) reactive intermediates generated during the reaction, indicate that the major pathway involves the cleavage of C-H bonds by FeV(O). When these oxidations were performed in the presence of air, the yield of the oxidized product doubled, but the stereoretention remained unchanged. On the basis of 18O labeling and other mechanistic studies, we propose a mechanism that involves the dual activation of mCPBA and O2 by Fe-bTAML, leading to formation of the FeV(O) intermediate. This high-valent iron oxo remains the active intermediate for most of the reaction, resulting in high regio- and stereoselectivity during product formation.
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Affiliation(s)
- Munmun Ghosh
- Chemical Engineering Division, CSIR, National Chemical Laboratory , Pune 411008, India
| | - Santanu Pattanayak
- Chemical Engineering Division, CSIR, National Chemical Laboratory , Pune 411008, India
| | - Basab B Dhar
- Department of Chemistry, Shiv Nadar University , Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Kundan K Singh
- Chemical Engineering Division, CSIR, National Chemical Laboratory , Pune 411008, India
| | - Chakadola Panda
- Chemical Engineering Division, CSIR, National Chemical Laboratory , Pune 411008, India
| | - Sayam Sen Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata , Mohanpur 741246, India
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27
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Collins TJ, Ryabov AD. Targeting of High-Valent Iron-TAML Activators at Hydrocarbons and Beyond. Chem Rev 2017; 117:9140-9162. [PMID: 28488444 DOI: 10.1021/acs.chemrev.7b00034] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
TAML activators of peroxides are iron(III) complexes. The ligation by four deprotonated amide nitrogens in macrocyclic motifs is the signature of TAMLs where the macrocyclic structures vary considerably. TAML activators are exceptional functional replicas of the peroxidases and cytochrome P450 oxidizing enzymes. In water, they catalyze peroxide oxidation of a broad spectrum of compounds, many of which are micropollutants, compounds that produce undesired effects at low concentrations-as with the enzymes, peroxide is typically activated with near-quantitative efficiency. In nonaqueous solvents such as organic nitriles, the prototype TAML activator gave the structurally authenticated reactive iron(V)oxo units (FeVO), wherein the iron atom is two oxidation equivalents above the FeIII resting state. The iron(V) state can be achieved through the intermediacy of iron(IV) species, which are usually μ-oxo-bridged dimers (FeIVFeIV), and this allows for the reactivity of this potent reactive intermediate to be studied in stoichiometric processes. The present review is primarily focused at the mechanistic features of the oxidation by FeVO of hydrocarbons including cyclohexane. The main topic is preceded by a description of mechanisms of oxidation of thioanisoles by FeVO, because the associated studies provide valuable insight into the ability of FeVO to oxidize organic molecules. The review is opened by a summary of the interconversions between FeIII, FeIVFeIV, and FeVO species, since this information is crucial for interpreting the kinetic data. The highest reactivity in both reaction classes described belongs to FeVO. The resting state FeIII is unreactive oxidatively. Intermediate reactivity is typically found for FeIVFeIV; therefore, kinetic features for these species in interchange and oxidation processes are also reviewed. Examples of using TAML activators for C-H bond cleavage applied to fine organic synthesis conclude the review.
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Affiliation(s)
- Terrence J Collins
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D Ryabov
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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28
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Golchin J, Golchin K, Alidadian N, Ghaderi S, Eslamkhah S, Eslamkhah M, Akbarzadeh A. Nanozyme applications in biology and medicine: an overview. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:1-8. [DOI: 10.1080/21691401.2017.1313268] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jafar Golchin
- Division of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kazem Golchin
- Division of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Alidadian
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahrooz Ghaderi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Division of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sajjad Eslamkhah
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Eslamkhah
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolfazl Akbarzadeh
- Division of Nanomedicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Mills MR, Weitz AC, Zhang DZ, Hendrich MP, Ryabov AD, Collins TJ. A "Beheaded" TAML Activator: A Compromised Catalyst that Emphasizes the Linearity between Catalytic Activity and pK a. Inorg Chem 2016; 55:12263-12269. [PMID: 27934426 DOI: 10.1021/acs.inorgchem.6b01988] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Studies of the new tetra-amido macrocyclic ligand (TAML) activator [FeIII{(Me2CNCOCMe2NCO)2CMe2}OH2]- (4) in water in the pH range of 2-13 suggest its pseudo-octahedral geometry with two nonequivalent axial H2O ligands and revealed (i) the anticipated basic drift of the first pKa of water to 11.38 due to four electron-donating methyl groups alongside (ii) its counterintuitive enhanced resistance to acid-induced iron(III) ejection from the macrocycle. The catalytic activity of 4 in the oxidation of Orange II (S) by H2O2 in the pH range of 7-12 is significantly lower than that of previously reported TAML activators, though it follows the common rate law (v/[FeIII] = kIkII[H2O2][S]/(kI[H2O2] + kII[S]) and typical pH profiles for kI and kII. At pH 7 and 25 °C the rate constants kI and kII equal 0.63 ± 0.02 and 1.19 ± 0.03 M-1 s-1, respectively. With these new values for pKa, kI and kII establishing new high and low limits, respectively, the rate constants kI and kII were correlated with pKa values of all TAML activators. The relations log k = log k0 + α × pKa were established with log k0 = 13 ± 2 and 20 ± 4 and α = -1.1 ± 0.2 and -1.8 ± 0.4 for kI and kII, respectively. Thus, the reactivity of TAML activators across four generations of catalysts is predictable through their pKa values.
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Affiliation(s)
- Matthew R Mills
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Andrew C Weitz
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - David Z Zhang
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Michael P Hendrich
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D Ryabov
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Terrence J Collins
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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Dai QQ, Ren JL, Peng F, Chen XF, Gao CD, Sun RC. Synthesis of Acylated Xylan-Based Magnetic Fe₃O₄ Hydrogels and Their Application for H₂O₂ Detection. MATERIALS 2016; 9:ma9080690. [PMID: 28773811 PMCID: PMC5512512 DOI: 10.3390/ma9080690] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 07/30/2016] [Accepted: 08/08/2016] [Indexed: 11/16/2022]
Abstract
Acylated xylan-based magnetic Fe₃O₄ nanocomposite hydrogels (ACX-MNP-gels) were prepared by fabricating Fe₃O₄ nanoctahedra in situ within a hydrogel matrix which was synthesized by the copolymerization of acylated xylan (ACX) with acrylamide and N-isopropylacrylamide under ultraviolet irradiation. The size of the Fe₃O₄ fabricated within the hydrogel matrix could be adjusted through controlling the crosslinking concentrations (C). The magnetic hydrogels showed desirable magnetic and mechanical properties, which were confirmed by XRD, Raman spectroscopy, physical property measurement system, SEM, TGA, and compression test. Moreover, the catalytic performance of the magnetic hydrogels was explored. The magnetic hydrogels (C = 7.5 wt %) presented excellent catalytic activity and provided a sensitive response to H₂O₂ detection even at a concentration level of 5 × 10-6 mol·L-1. This approach to preparing magnetic hydrogels loaded with Fe₃O₄ nanoparticles endows xylan-based hydrogels with new promising applications in biotechnology and environmental chemistry.
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Affiliation(s)
- Qing-Qing Dai
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jun-Li Ren
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
| | - Xiao-Feng Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Cun-Dian Gao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Run-Cang Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
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31
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Spectrophotometric determination of mercury(II) ions based on their stimulation effect on the peroxidase-like activity of molybdenum disulfide nanosheets. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1886-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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32
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Tang LL, DeNardo MA, Gayathri C, Gil RR, Kanda R, Collins TJ. TAML/H2O2 Oxidative Degradation of Metaldehyde: Pursuing Better Water Treatment for the Most Persistent Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:5261-5268. [PMID: 27088657 DOI: 10.1021/acs.est.5b05518] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The extremely persistent molluscicide, metaldehyde, widely used on farms and gardens, is often detected in drinking water sources of various countries at concentrations of regulatory concern. Metaldehyde contamination restricts treatment options. Conventional technologies for remediating dilute organics in drinking water, activated carbon, and ozone, are insufficiently effective against metaldehyde. Some treatment plants have resorted to effective, but more costly UV/H2O2. Here we have examined if TAML/H2O2 can decompose metaldehyde under laboratory conditions to guide development of a better real world option. TAML/H2O2 slowly degrades metaldehyde to acetaldehyde and acetic acid. Nuclear magnetic resonance spectroscopy ((1)H NMR) was used to monitor the degradation-the technique requires a high metaldehyde concentration (60 ppm). Within the pH range of 6.5-9, the reaction rate is greatest at pH 7. Under optimum conditions, one aliquot of TAML 1a (400 nM) catalyzed 5% degradation over 10 h with a turnover number of 40. Five sequential TAML aliquots (2 μM overall) effected a 31% removal over 60 h. TAML/H2O2 degraded metaldehyde steadily over many hours, highlighting an important long-service property. The observation of metaldehyde decomposition under mild conditions provides a further indication that TAML catalysis holds promise for advancing water treatment. These results have turned our attention to more aggressive TAML activators in development, which we expect will advance the observed technical performance.
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Affiliation(s)
- Liang L Tang
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Matthew A DeNardo
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Chakicherla Gayathri
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Roberto R Gil
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Rakesh Kanda
- Institute for the Environment, Brunel University , Halsbury Building (130), Kingston Lane, Uxbridge, Middlesex, UB8 3PH, United Kingdom
| | - Terrence J Collins
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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DeNardo MA, Mills MR, Ryabov AD, Collins TJ. Unifying Evaluation of the Technical Performances of Iron-Tetra-amido Macrocyclic Ligand Oxidation Catalysts. J Am Chem Soc 2016; 138:2933-6. [DOI: 10.1021/jacs.5b13087] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew A. DeNardo
- Department of Chemistry,
Institute of Green Science, Mellon Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Matthew R. Mills
- Department of Chemistry,
Institute of Green Science, Mellon Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D. Ryabov
- Department of Chemistry,
Institute of Green Science, Mellon Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Terrence J. Collins
- Department of Chemistry,
Institute of Green Science, Mellon Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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34
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Nirala NR, Pandey S, Bansal A, Singh VK, Mukherjee B, Saxena PS, Srivastava A. Different shades of cholesterol: Gold nanoparticles supported on MoS2 nanoribbons for enhanced colorimetric sensing of free cholesterol. Biosens Bioelectron 2015; 74:207-13. [DOI: 10.1016/j.bios.2015.06.043] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 06/16/2015] [Accepted: 06/18/2015] [Indexed: 11/24/2022]
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35
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Kim MC, Lee SY. Peroxidase-like oxidative activity of a manganese-coordinated histidyl bolaamphiphile self-assembly. NANOSCALE 2015; 7:17063-70. [PMID: 26419275 DOI: 10.1039/c5nr04893a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A peroxidase-like catalyst was constructed through the self-assembly of histidyl bolaamphiphiles coordinated to Mn(2+) ions. The prepared catalyst exhibited oxidation activity for the organic substrate o-phenylenediamine (OPD) in the presence of hydrogen peroxide (H2O2). The histidyl bolaamphiphiles of bis(N-alpha-amido-histidine)-1,7-heptane dicarboxylates self-assembled to make spherical structures in an aqueous solution. Subsequent association of Mn(2+) ions with the histidyl imidazoles in the self-assembly produced catalytic active sites. The optimal Mn(2+) ion concentration was determined and coordination of the Mn(2+) ion with multiple histidine imidazoles was investigated using spectroscopy analysis. The activation energy of the produced catalysts was 55.0 kJ mol(-1), which was comparable to other peroxidase-mimetic catalysts. A detailed kinetics study revealed that the prepared catalyst followed a ping-pong mechanism and that the turnover reaction was promoted by increasing the substrate concentration. Finally, application of the prepared catalyst for glucose detection was demonstrated through cascade enzyme catalysis. This study demonstrated a facile way to prepare an enzyme-mimetic catalyst through the self-assembly of an amphiphilic molecule containing amino acid segments.
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Affiliation(s)
- Min-Chul Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Korea.
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36
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Tang LL, Gunderson WA, Weitz AC, Hendrich MP, Ryabov AD, Collins TJ. Activation of Dioxygen by a TAML Activator in Reverse Micelles: Characterization of an Fe(III)Fe(IV) Dimer and Associated Catalytic Chemistry. J Am Chem Soc 2015; 137:9704-15. [PMID: 26161504 DOI: 10.1021/jacs.5b05229] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Iron TAML activators of peroxides are functional catalase-peroxidase mimics. Switching from hydrogen peroxide (H2O2) to dioxygen (O2) as the primary oxidant was achieved by using a system of reverse micelles of Aerosol OT (AOT) in n-octane. Hydrophilic TAML activators are localized in the aqueous microreactors of reverse micelles where water is present in much lower abundance than in bulk water. n-Octane serves as a proximate reservoir supplying O2 to result in partial oxidation of Fe(III) to Fe(IV)-containing species, mostly the Fe(III)Fe(IV) (major) and Fe(IV)Fe(IV) (minor) dimers which coexist with the Fe(III) TAML monomeric species. The speciation depends on the pH and the degree of hydration w0, viz., the amount of water in the reverse micelles. The previously unknown Fe(III)Fe(IV) dimer has been characterized by UV-vis, EPR, and Mössbauer spectroscopies. Reactive electron donors such as NADH, pinacyanol chloride, and hydroquinone undergo the TAML-catalyzed oxidation by O2. The oxidation of NADH, studied in most detail, is much faster at the lowest degree of hydration w0 (in "drier micelles") and is accelerated by light through NADH photochemistry. Dyes that are more resistant to oxidation than pinacyanol chloride (Orange II, Safranine O) are not oxidized in the reverse micellar media. Despite the limitation of low reactivity, the new systems highlight an encouraging step in replacing TAML peroxidase-like chemistry with more attractive dioxygen-activation chemistry.
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Affiliation(s)
- Liang L Tang
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - William A Gunderson
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Andrew C Weitz
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Michael P Hendrich
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Alexander D Ryabov
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Terrence J Collins
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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37
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Warner GR, Mills MR, Enslin C, Pattanayak S, Panda C, Panda TK, Gupta SS, Ryabov AD, Collins TJ. Reactivity and Operational Stability ofN-Tailed TAMLs through Kinetic Studies of the Catalyzed Oxidation of Orange II by H2O2: Synthesis and X-ray Structure of anN-Phenyl TAML. Chemistry 2015; 21:6226-33. [DOI: 10.1002/chem.201406061] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Indexed: 11/08/2022]
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38
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Saavedra Díaz RO, Le Lagadec R, Shen LQ, Ryabov AD. In search for chelating TAMLs ( tetra amido macrocyclic ligands) with peripheral bidentate donor centers: a cobalt(III) complex of the 3,3′-(2,2′-bipyridindiyl)-tailed TAML. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.964224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - Longzhu Q. Shen
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
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39
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Kumari S, Dhar BB, Panda C, Meena A, Sen Gupta S. Fe-TAML encapsulated inside mesoporous silica nanoparticles as peroxidase mimic: femtomolar protein detection. ACS APPLIED MATERIALS & INTERFACES 2014; 6:13866-13873. [PMID: 25089579 DOI: 10.1021/am503275g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Peroxidase, such as horseradish peroxidase (HRP), conjugated to antibodies are routinely used for the detection of proteins via an ELISA type assay in which a critical step is the catalytic signal amplification by the enzyme to generate a detectable signal. Synthesis of functional mimics of peroxidase enzyme that display catalytic activity which far exceeds the native enzyme is extremely important for the precise and accurate determination of very low quantities of proteins (fM and lower) that is necessary for early clinical diagnosis. Despite great advancements, analyzing proteins of very low abundance colorimetrically, a method that is most sought after since it requires no equipment for the analysis, still faces great challenges. Most reported HRP mimics that show catalytic activity greater than native enzyme (∼10-fold) are based on metal/metal-oxide nanoparticles such as Fe3O4. In this paper, we describe a second generation hybrid material developed by us in which approximately 25,000 alkyne tagged biuret modified Fe-tetraamido macrocyclic ligand (Fe-TAML), a very powerful small molecule synthetic HRP mimic, was covalently attached inside a 40 nm mesoporous silica nanoparticle (MSN). Biuret-modified Fe-TAMLs represent one of the best small molecule functional mimics of the enzyme HRP with reaction rates in water close to the native enzyme and operational stability (pH, ionic strength) far exceeding the natural enzyme. The catalytic activity of this hybrid material is around 1000-fold higher than that of natural HRP and 100-fold higher than that of most metal/metal oxide nanoparticle based HRP mimics reported to date. We also show that using antibody conjugates of this hybrid material it is possible to detect and, most importantly, quantify femtomolar quantities of proteins colorimetrically in an ELISA type assay. This represents at least 10-fold higher sensitivity than other colorimetric protein assays that have been reported using metal/metal oxide nanoparticles as HRP mimic. Using a human IgG expressing cell line, we were able to demonstrate that the protein of interest human IgG could be detected from a mixture of interfering proteins in our assay.
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Affiliation(s)
- Sushma Kumari
- CReST Chemical Engineering Division, National Chemical Laboratory , Pune-411008, India
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40
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Panda C, Debgupta J, Díaz Díaz D, Singh KK, Sen Gupta S, Dhar BB. Homogeneous photochemical water oxidation by biuret-modified Fe-TAML: evidence of Fe(V)(O) intermediate. J Am Chem Soc 2014; 136:12273-82. [PMID: 25119524 DOI: 10.1021/ja503753k] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Water splitting, leading to hydrogen and oxygen in a process that mimics natural photosynthesis, is extremely important for devising a sustainable solar energy conversion system. Development of earth-abundant, transition metal-based catalysts that mimic the oxygen-evolving complex of photosystem II, which is involved in oxidation of water to O2 during natural photosynthesis, represents a major challenge. Further, understanding the exact mechanism, including elucidation of the role of active metal-oxo intermediates during water oxidation (WO), is critical to the development of more efficient catalysts. Herein, we report Fe(III) complexes of biuret-modified tetra-amidomacrocyclic ligands (Fe-TAML; 1a and 1b) that catalyze fast, homogeneous, photochemical WO to give O2, with moderate efficiency (maximum TON = 220, TOF = 0.76 s(-1)). Previous studies on photochemical WO using iron complexes resulted in demetalation of the iron complexes with concomitant formation of iron oxide nanoparticles (NPs) that were responsible for WO. Herein, we show for the first time that a high valent Fe(V)(O) intermediate species is photochemically generated as the active intermediate for the oxidation of water to O2. To the best of our knowledge, this represents the first example of a molecular iron complex catalyzing photochemical WO through a Fe(V)(O) intermediate.
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Affiliation(s)
- Chakadola Panda
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune 411008, India
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41
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Wang H, Li S, Si Y, Zhang N, Sun Z, Wu H, Lin Y. Platinum nanocatalysts loaded on graphene oxide-dispersed carbon nanotubes with greatly enhanced peroxidase-like catalysis and electrocatalysis activities. NANOSCALE 2014; 6:8107-8116. [PMID: 24916053 DOI: 10.1039/c4nr00983e] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A powerful enzymatic mimetic has been fabricated by employing graphene oxide (GO) nanocolloids to disperse conductive carbon supports of hydrophobic carbon nanotubes (CNTs) before and after the loading of Pt nanocatalysts. The resulting GOCNT-Pt nanocomposites could present improved aqueous dispersion stability and Pt spatial distribution. Unexpectedly, they could show greatly enhanced peroxidase-like catalysis and electrocatalysis activities in water, as evidenced in the colorimetric and electrochemical investigations in comparison to some inorganic nanocatalysts commonly used. Moreover, it is found that the new enzyme mimetics could exhibit peroxidase-like catalysis activity comparable to natural enzymes; yet, they might circumvent some of their inherent problems in terms of catalysis efficiency, electron transfer, environmental stability, and cost effectiveness. Also, sandwiched electrochemical immunoassays have been successfully conducted using GOCNT-Pt as enzymatic tags. Such a fabrication avenue of noble metal nanocatalysts loaded on well-dispersed conductive carbon supports should be tailored for the design of different enzyme mimics promising the extensive catalysis applications in environmental, medical, industrial, and particularly aqueous biosensing fields.
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Affiliation(s)
- Hua Wang
- Shandong Province Key Laboratory of Life-Organic Analysis, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City 273165, P. R. China.
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Yao Y, Mao Y, Huang Q, Wang L, Huang Z, Lu W, Chen W. Enhanced decomposition of dyes by hemin-ACF with significant improvement in pH tolerance and stability. JOURNAL OF HAZARDOUS MATERIALS 2014; 264:323-331. [PMID: 24316804 DOI: 10.1016/j.jhazmat.2013.10.063] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 10/23/2013] [Accepted: 10/26/2013] [Indexed: 06/02/2023]
Abstract
In this study, we evaluated a novel heterogeneous catalytic system (hemin-ACF/H2O2) based on activated carbon fiber supported hemin for the rapid removal of dyes. Contrast experiments, effects of pH and temperature, and sustained catalytic stability of hemin-ACF for the catalytic decomposition of azo dye RR195 used as a model pollutant were investigated. Surprisingly, the introduction of ACF significantly enhanced the decomposition of dyes by hemin with an obvious improvement in pH tolerance and stability. Inhibition and probe studies combined with electron paramagnetic resonance (EPR) were conducted to ascertain the role of several radicals (OH, O2(-)/HO2, (1)O2 and Fe(IV)O) on dye degradation. ACF are rich in free electrons, and the π-conjugated macrocyclic structure of hemin may present convenient channels for the transfer of free electrons from the ACF, promoting the generation of hydroxyl radicals and high-valence iron species. These results are promising because they offer new insight for the application of hemin as a catalyzer upon treatment of organic pollutants and contribute to identification of the interaction between support material and catalyzer from a new perspective.
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Affiliation(s)
- Yuyuan Yao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Yajun Mao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Qunfeng Huang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Lie Wang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Zhengfu Huang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Wangyang Lu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Wenxing Chen
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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43
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Wang H, Li S, Si Y, Sun Z, Li S, Lin Y. Recyclable enzyme mimic of cubic Fe3O4nanoparticles loaded on graphene oxide-dispersed carbon nanotubes with enhanced peroxidase-like catalysis and electrocatalysis. J Mater Chem B 2014; 2:4442-4448. [DOI: 10.1039/c4tb00541d] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe3O4nanocatalysts loaded on graphene oxide-dispersed CNTs (GCNTs) for GCNT–Fe3O4nanocomposites with enhanced aqueous stability and peroxidase-like catalysis and electrocatalysis.
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Affiliation(s)
- Hua Wang
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City 273165, P.R. China
| | - Shuai Li
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City 273165, P.R. China
| | - Yanmei Si
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City 273165, P.R. China
| | - Zongzhao Sun
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City 273165, P.R. China
| | - Shuying Li
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City 273165, P.R. China
| | - Yuehe Lin
- Pacific Norwest National Laboratory
- Richland, USA
- School of Mechanical and Materials Engineering
- Washington State University
- Pullman, USA
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44
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Truong L, DeNardo MA, Kundu S, Collins TJ, Tanguay RL. Zebrafish Assays as Developmental Toxicity Indicators in The Design of TAML Oxidation Catalysts. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2013; 15:2339-2343. [PMID: 24748850 PMCID: PMC3989102 DOI: 10.1039/c3gc40376a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
TAML activators promise a novel water treatment approach by efficiently catalysing peroxide-based degradation of chemicals of high concern at environmental concentrations. Green design ethics demands an exploration of TAML toxicity. Exposure to high concentrations of certain activators caused adverse effects in zebrafish. At typical TAML operational concentrations, development was not perturbed.
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Affiliation(s)
- Lisa Truong
- Department of Environmental and Molecular Toxicology, Sinnhuber Aquatic Research Laboratory, Environmental Health Sciences Center, Oregon State University, 28645 East HWY 34, Corvallis, OR 97333, USA. Fax: 01 541 737 6074; Tel: 01 541 737 6514
| | - Matthew A. DeNardo
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA. Fax: 01 412 268 1061; Tel: 01 412 268 6335
| | - Soumen Kundu
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA. Fax: 01 412 268 1061; Tel: 01 412 268 6335
| | - Terrence J. Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA. Fax: 01 412 268 1061; Tel: 01 412 268 6335
| | - Robert L. Tanguay
- Department of Environmental and Molecular Toxicology, Sinnhuber Aquatic Research Laboratory, Environmental Health Sciences Center, Oregon State University, 28645 East HWY 34, Corvallis, OR 97333, USA. Fax: 01 541 737 6074; Tel: 01 541 737 6514
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Pluth MD, Lippard SJ. Reversible binding of nitric oxide to an Fe(III) complex of a tetra-amido macrocycle. Chem Commun (Camb) 2013; 48:11981-3. [PMID: 23133836 DOI: 10.1039/c2cc37221e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nitric oxide binds reversibly to the Fe(III) complex of a well-developed tetra-amido macrocyclic ligand. Reaction with NO results in formation of a species consistent with an S = 1 {Fe-NO}(6) ground state as characterized by UV-vis, IR, EPR, and Mössbauer spectroscopy. The resultant nitrosyl is labile and dissociates readily upon purging with N(2), thus providing a rare example of reversible NO binding to non-heme iron.
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Affiliation(s)
- Michael D Pluth
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Jiang Y, Wang W, Li X, Wang X, Zhou J, Mu X. Enzyme-mimetic catalyst-modified nanoporous SiO2-cellulose hybrid composites with high specific surface area for rapid H2O2 detection. ACS APPLIED MATERIALS & INTERFACES 2013; 5:1913-1916. [PMID: 23465512 DOI: 10.1021/am400253d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Mesoporous silica-cellulose hybrid composites were prepared by surface sol-gel coating process on nature cellulose substance. The template CTAB (hexadecyl trimethyl ammonium Bromide) in the silica film can be removed by extraction to obtain high specific surface area (80.7 m(2) g(-1)), which is 2 orders of magnitude higher than that of raw cellulose. In the following, the enzyme-mimetic catalyst and chromogenic agent were introduced onto the hybrid system. Just as the peroxidase, the resultant hybrid material exhibits extraordinary sensitivity for the H2O2 and shows an immediate and obvious color change. The detection limit is about 1 μmol L(-1) by the naked eye.
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Affiliation(s)
- Yijun Jiang
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
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Ryabov AD. Green Challenges of Catalysis via Iron(IV)oxo and Iron(V)oxo Species. ADVANCES IN INORGANIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-404582-8.00004-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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48
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Fabrication of inorganic–organic hybrid based on polyoxometalate SiW10Fe2 and folate as peroxidases for colorimetric immunoassay of cancer cells. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2012.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Qin FX, Jia SY, Wang FF, Wu SH, Song J, Liu Y. Hemin@metal–organic framework with peroxidase-like activity and its application to glucose detection. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00268c] [Citation(s) in RCA: 165] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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50
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Sharma VK. Ferrate(VI) and ferrate(V) oxidation of organic compounds: Kinetics and mechanism. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.04.014] [Citation(s) in RCA: 221] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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