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Liu J, Wang T, Lv Q, Meng Y, Gao Z, Hu S, Ren X. Reactive oxygen species-responsive hydrophobic crosslinked chitosan films based on triple-function crosslinkers. Int J Biol Macromol 2024; 257:128606. [PMID: 38061532 DOI: 10.1016/j.ijbiomac.2023.128606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/10/2023] [Accepted: 11/24/2023] [Indexed: 01/26/2024]
Abstract
Chitosan is widely used in reactive oxygen species (ROS)-responsive films but remains great challenges owing to its weak mechanical strength and strong hydrophilicity. Herein, we synthesized novel hydrophobic crosslinked CS films with ROS-responsive properties and excellent physicochemical properties. A novel crosslinker, 2-((10-carboxydecyl)thio)succinic acid, with long-chain alkanes, three carboxyl groups, and sulfhydryl groups was synthesized and then used to produce thioether-containing crosslinked CS membranes. The results suggested that crosslinking could significantly increase the tensile strength of the film from 15.67 MPa to 24.32 MPa. The compact structure of crosslinked chitosan film improved the hydrophobicity and degradability, reduced the thermal stability and swelling rates, exhibited excellent non- cytotoxicity. The in vitro release studies revealed that crosslinked chitosan films could displayed the highest flux about 1.40 mg/ (cm2 h) and significant NR fluorescence change over 80 %. Collectively, our results demonstrate the applicability of these films as ROS-responsive drug delivery systems.
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Affiliation(s)
- Jin Liu
- Shaanxi Mineral Resources and Geological Survey, Xi'an 710068, PR China
| | - Tianhao Wang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Qilin Lv
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Yunshan Meng
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Zideng Gao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Shuwen Hu
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China; Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, China Agricultural University, Beijing 100193, PR China.
| | - Xueqin Ren
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China; Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, China Agricultural University, Beijing 100193, PR China.
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2
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Ichimaru Y, Kato K, Nakatani R, Isomura R, Sugiura K, Yamaguchi Y, Jin W, Mizutani H, Imai M, Kurihara M, Fujita M, Otsuka M, Kurosaki H. Structural Characterization of Zinc(II)/Cobalt(II) Complexes of Chiral N-(Anthracen-9-yl)methyl-N,N-bis(2-picolyl)amine and Evaluation of DNA Photocleavage Activity. Chem Pharm Bull (Tokyo) 2023; 71:545-551. [PMID: 37394603 DOI: 10.1248/cpb.c23-00043] [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: 07/04/2023]
Abstract
We designed and synthesized a chiral ligand N-(anthracen-9-ylmethyl)-1-(pyridin-2-yl)-N-(pyridin-2-ylmethyl)ethanamine (APPE) DNA photocleavage agent to investigate the effects of chirality of bis(2-picolyl)amine on the DNA photocleavage activity of metal complexes. The structures of ZnII and CoII complexes in APPE were analyzed via X-ray crystallography and fluorometric titration. APPE formed metal complexes with a 1 : 1 stoichiometry in both the crystalline and solution states. Fluorometric titration was used to show that the ZnII and CoII association constants of these complexes (log Kas) were 4.95 and 5.39, respectively. The synthesized complexes were found to cleave pUC19 plasmid DNA when irradiated at 370 nm. The DNA photocleavage activity of the ZnII complex was higher than that of the CoII complex. The absolute configuration of the methyl-attached carbon did not affect DNA cleavage activity and, unfortunately, an achiral APPE derivative without the methyl group (ABPM) was found to perform DNA photocleavage more effectively than APPE. One reason for this may be that the methyl group suppressed the structural flexibility of the photosensitizer. These results will be useful for the design of new photoreactive reagents.
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Affiliation(s)
- Yoshimi Ichimaru
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | - Koichi Kato
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | | | | | | | | | - Wanchun Jin
- College of Pharmacy, Kinjo Gakuin University
| | | | | | - Masaaki Kurihara
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | - Mikako Fujita
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University
| | - Masami Otsuka
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University
- Department of Drug Discovery, Science Farm Ltd
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Chudasama NA, Sequeira RA, Moradiya K, Prasad K. Seaweed Polysaccharide Based Products and Materials: An Assessment on Their Production from a Sustainability Point of View. Molecules 2021; 26:2608. [PMID: 33947023 PMCID: PMC8124237 DOI: 10.3390/molecules26092608] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 11/21/2022] Open
Abstract
Among the various natural polymers, polysaccharides are one of the oldest biopolymers present on the Earth. They play a very crucial role in the survival of both animals and plants. Due to the presence of hydroxyl functional groups in most of the polysaccharides, it is easy to prepare their chemical derivatives. Several polysaccharide derivatives are widely used in a number of industrial applications. The polysaccharides such as cellulose, starch, chitosan, etc., have several applications but due to some distinguished characteristic properties, seaweed polysaccharides are preferred in a number of applications. This review covers published literature on the seaweed polysaccharides, their origin, and extraction from seaweeds, application, and chemical modification. Derivatization of the polysaccharides to impart new functionalities by chemical modification such as esterification, amidation, amination, C-N bond formation, sulphation, acetylation, phosphorylation, and graft copolymerization is discussed. The suitability of extraction of seaweed polysaccharides such as agar, carrageenan, and alginate using ionic solvent systems from a sustainability point of view and future prospects for efficient extraction and functionalization of seaweed polysaccharides is also included in this review article.
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Affiliation(s)
- Nishith A. Chudasama
- P. D. Patel Institute of Applied Sciences, CHARUSAT Campus, Charotar University of Sciences and Technology, Changa 388421, India;
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India; (R.A.S.); (K.M.)
| | - Rosy Alphons Sequeira
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India; (R.A.S.); (K.M.)
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kinjal Moradiya
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India; (R.A.S.); (K.M.)
| | - Kamalesh Prasad
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India; (R.A.S.); (K.M.)
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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4
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Zhao D, You J, Fu H, Xue T, Hao T, Wang X, Wang T. Photopolymerization with AIE dyes for solid-state luminophores. Polym Chem 2020. [DOI: 10.1039/c9py01671f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The photoinitiating activities of MPAs/ONI were evaluated. The AIE emission of MPAs occurred during photocuring. MPAs showed potential as fluorescent molecular probes to monitor the progress of photopolymerization.
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Affiliation(s)
- Di Zhao
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Jian You
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Hongyuan Fu
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Tanlong Xue
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Tingting Hao
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Xiaoning Wang
- College of Material Engineering
- Beijing Institute of Fashion Technology
- Beijing 100019
- People's Republic of China
| | - Tao Wang
- Department of Organic Chemistry
- College of chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
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Stubbe B, Graulus GJ, Reekmans G, Courtin T, Martins JC, Van Vlierberghe S, Dubruel P, Adriaensens P. A straightforward method for quantification of vinyl functionalized water soluble alginates via 13C-NMR spectroscopy. Int J Biol Macromol 2019; 134:722-729. [PMID: 31078596 DOI: 10.1016/j.ijbiomac.2019.05.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 01/14/2023]
Abstract
Alginates are fairly abundant in nature and possess many interesting properties, including their biocompatibility and ability to absorb large amounts of water. Hence, increasing interest in their derivatization has been observed and the determination of the number of newly introduced functionalities has become a key issue. For this purpose, literature generally reports on conventional 1H-NMR spectra, typically recorded at elevated temperatures and/or after hydrolysis of the alginate to circumvent line broadening effects resulting from the high viscosity. The present work reports on the modification of alginate with methacrylate functionalities and determination of the resulting degree of substitution (DS), i.e. the number of introduced methacrylate moieties relative to the initial amount of hydroxyl groups along the alginate backbone, via NMR spectroscopy. Freeze-drying and low power water presaturation were applied to improve the quality of the 1H NMR spectra. Nevertheless, it remains a qualitative method, to be used only for mutual comparisons of samples. A new and accurate method for DS determination of methacrylated alginates, based on 13C-NMR spectroscopy, is proposed. Quantitative 13C-NMR spectra were recorded with reduced measuring times by addition of a paramagnetic relaxation agent. The proposed method will also be applicable for other water-soluble functionalized alginates and polysaccharides in general.
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Affiliation(s)
- B Stubbe
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - G-J Graulus
- Biomolecule Design Group, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - G Reekmans
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - T Courtin
- NMR and Structure Analysis Unit, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - J C Martins
- NMR and Structure Analysis Unit, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - P Dubruel
- Polymer Chemistry & Biomaterials Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Building S4, Krijgslaan 281, 9000 Ghent, Belgium.
| | - P Adriaensens
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium.
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Sharma AK, Chudasama NA, Prasad K, Siddhanta AK. Agarose based large molecular systems: Synthesis of fluorescent aromatic agarose amino acid nano-conjugates - their pH-stimulated structural variations and interactions with BSA. Carbohydr Res 2017; 449:37-46. [PMID: 28688271 DOI: 10.1016/j.carres.2017.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/31/2017] [Accepted: 06/24/2017] [Indexed: 11/24/2022]
Abstract
Two new nano-sized fluorescent 6-amino agarose naphthalic acid half ester derivatives were synthesized (ca.60% yields) employing 1,8- and 2,3-naphthalic acid anhydrides (1,8-AANE, and 2,3-AANE respectively). These large nano molecular frameworks (DLS 3 & 100 nm, and 3 & 152 nm respectively) contains amino, naphthalate half-ester carboxyl groups at the C-6 positions of the 1,3-β-D-galactopyranose moieties of the agarose backbone (overall DS 0.94). Structures were characterized (FT-IR, and 13C &1H NMR spectrometries). These materials mimicked a large protein conjugate (GPC 123, and 108 kDa) exhibiting pH-responsive conformational variations (optical rotatory dispersion), offering a mixed solubility pattern like a soluble random coil (pH 4-10), and precipitate (pH 2) formation. With bovine serum albumin 1,8- and 2,3-AANE showed complexation, and decomplexation at pH 5.2, and 6.8 respectively. However, they showed decomplexation, and complexation respectively at pH 10 (circular dichroism). These fluorogenic systems may be of prospective utility as chiral sensors and in the realms demanding the virtues of preferential protein bindings.
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Affiliation(s)
- Atul K Sharma
- Marine Biotechnology and Ecology Division, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India
| | - Nishith A Chudasama
- Plant Omics Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar, 364002 Gujarat, India
| | - Kamalesh Prasad
- Marine Biotechnology and Ecology Division, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India; Academy of Scientific & Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India; Natural Products & Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar, 364002 Gujarat, India.
| | - A K Siddhanta
- Marine Biotechnology and Ecology Division, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India; Academy of Scientific & Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India.
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7
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Chudasama NA, Prasad K, Siddhanta AK. Agarose functionalization: Synthesis of PEG-agarose amino acid nano-conjugate - its structural ramifications and interactions with BSA in a varying pH regime. Carbohydr Polym 2016; 151:735-742. [PMID: 27474620 DOI: 10.1016/j.carbpol.2016.06.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/24/2016] [Accepted: 06/03/2016] [Indexed: 12/30/2022]
Abstract
In a rapid one-step method protein-mimicking large agarose amino acid framework (AAE; GPC 156.7kDa) was conjugated with polyethylene glycol (PEG 9kDa) affording nano-sized PEGylated amphoteric agarose (PEG-AAE; <10nm; DLS) containing amino, carboxyl and ester groups [overall degree of substitution (DS) 0.91]. The PEG groups were at the residual free carboxylic acid groups of succinate half-ester moiety at C-6 positions of the 1, 3 β-d-galactopyranose moieties of AAE. This new nano-sized PEG-AAE performed like a giant protein conjugate (GPC 331.2kDa) and exhibited pH-responsive interconversion between the triple helix and single-stranded random structures (optical rotatory dispersion) presenting a mixed solubility pattern like random coil (soluble), helical (soluble) and aggregate (precipitation) formations. Circular dichroism studies showed its pH-dependent complexation and decomplexation with bovine serum albumin (BSA). Such pH-responsive PEG-conjugate may be of pronounced therapeutic potential in the area of pharmacology as well as in sensing applications.
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Affiliation(s)
- Nishith A Chudasama
- Natural Product and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002 Gujarat, India
| | - Kamalesh Prasad
- Natural Product and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002 Gujarat, India; Academy of Scientific & Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India
| | - Arup Kumar Siddhanta
- Marine Biotechnology and Ecology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002 Gujarat, India; Academy of Scientific & Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India.
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8
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Chudasama NA, Siddhanta AK. Facile synthesis of nano-sized agarose based amino acid-Its pH-dependent protein-like behavior and interactions with bovine serum albumin. Carbohydr Res 2015; 417:57-65. [PMID: 26413976 DOI: 10.1016/j.carres.2015.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 11/24/2022]
Abstract
In a facile synthesis agarose was amphoterically functionalized to afford nano-sized agarose amino acids, aminoagarose succinate half-esters (AAE) containing one pendant carboxyl group. Nano-sized AAEs (<10 nm; DLS) were characterized and they had three various degrees of substitution [overall DSs 0.88, 0.89 and 0.96], both the amino and half-ester groups were placed on C-6 positions of the 1,3 beta-d-galactopyranose moieties of agarose backbone ((13)C NMR). AAEs performed like large protein molecules exhibiting pH-responsive structural variations (optical rotatory dispersion), presenting a mixed solubility pattern like random coil (soluble) and aggregate (precipitation) formations. Circular dichroism studies showed their pH-dependent associative interactions with bovine serum albumin, which indicated complexation at acidic and basic pHs, and decomplexation at pH 6.8 with AAE (DS 0.96). Thus, these nano-sized AAE based systems may be of potential utility in the domains demanding the merits of preferential protein bindings e.g. pH-responsive cationic/anionic drug carrier, separations or chiral sensing applications.
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Affiliation(s)
- Nishith A Chudasama
- Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India
| | - A K Siddhanta
- Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India.
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Siddhanta AK, Sanandiya ND, Chejara DR, Kondaveeti S. Functional modification mediated value addition of seaweed polysaccharides – a perspective. RSC Adv 2015. [DOI: 10.1039/c5ra09027j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Value addition of seaweed polysaccharides by their functional modification with various substrates leading to new effects.
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Affiliation(s)
- A. K. Siddhanta
- Marine Biotechnology and Ecology Division
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
- Academy of Scientific & Innovative Research
| | - Naresh D. Sanandiya
- Marine Biotechnology and Ecology Division
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
| | - Dharmesh R. Chejara
- Marine Biotechnology and Ecology Division
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
- Academy of Scientific & Innovative Research
| | - Stalin Kondaveeti
- Marine Biotechnology and Ecology Division
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
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Shen T, Jiang C, Wang C, Sun J, Wang X, Li X. A TiO2modified abiotic–biotic process for the degradation of the azo dye methyl orange. RSC Adv 2015. [DOI: 10.1039/c5ra06686g] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Methyl orange was degraded by a TiO2modified abiotic–biotic process involving synergetic mechanisms of adsorption, biodegradation, dye sensitization and LMCT.
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Affiliation(s)
- Tingting Shen
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
- College of Environmental Science and Engineering
| | - Chengcheng Jiang
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Chen Wang
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Jing Sun
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Xikui Wang
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Xiaoming Li
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
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