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Xie W, Zhao K, Xu L, Gao N, Zhao H, Gong Z, Yu L, Jiang J. Oxalic acid cross-linked sodium alginate and carboxymethyl chitosan hydrogel membrane for separation of dye/NaCl at high NaCl concentration. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ionic conduction and charge carrier relaxation in chitosan acetate based solid biopolymer electrolyte embedded with LiClO4. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02509-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bhushan B, Nandhagopal S, Rajesh Kannan R, Gopinath P. Biomimetic nanomaterials: Development of protein coated nanoceria as a potential antioxidative nano-agent for the effective scavenging of reactive oxygen species in vitro and in zebrafish model. Colloids Surf B Biointerfaces 2016; 146:375-86. [PMID: 27388966 DOI: 10.1016/j.colsurfb.2016.06.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/05/2016] [Accepted: 06/20/2016] [Indexed: 12/15/2022]
Abstract
Reactive oxygen species (ROS) induced oxidative stress is one of the major factors responsible for initiation of several intracellular toxic events that leads to cell death. Antioxidant enzymes defence system of the body is responsible for maintaining the oxidative balance and cellular homeostasis. Several diseases are promoted by the excessive oxidative stress caused by the impaired antioxidant defence system that leads to oxidant/antioxidant imbalance in the body. In order to restore or precise the aberrant antioxidant system, a large number of catalytic nanoparticles has been screened so far. Exceptional antioxidative activity of nanoceria made it as a potential antioxidative nano-agent for the effective scavenging of toxic ROS. In this work albumin coated nanoceria (ANC) was synthesized and further characterised by various physicochemical techniques. The antioxidant and superoxide dismutase (SOD) assay confirm that the albumin coating do not alter the antioxidant potential of ANC. The biocompatibility and protective efficacy of ANC against oxidative stress was investigated both in vitro and in vivo in human lung epithelial (L-132) cells and zebrafish embryos, respectively. The inductively coupled plasma mass spectrometry (ICP-MS), transmission electron microscopy (TEM) and field emission scanning electron microscope (FE-SEM) analysis corroborates the uptake of ANC by the cells. Furthermore, the semi-quantitative gene expression studies confirmed that the ANC successfully defend the cells against oxidative stress by preserving the antioxidant system of the cells. Thus, the current work open up a new avenue for the development of improved antioxidant nano-drug therapies.
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Affiliation(s)
- Bharat Bhushan
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, India
| | - Soundharapandiyan Nandhagopal
- Molecular and Nanomedicine Research Unit, Centre for Nanoscience and Nanotechnology, Sathyabama University, Rajiv Gandhi Salai, Chennai 600119, TN, India
| | - Rajaretinam Rajesh Kannan
- Molecular and Nanomedicine Research Unit, Centre for Nanoscience and Nanotechnology, Sathyabama University, Rajiv Gandhi Salai, Chennai 600119, TN, India
| | - P Gopinath
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, India; Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India.
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Liu Y, Jie X, Guo Y, Zhang X, Wang J, Xue C. Green Synthesis of Oxovanadium(IV)/chitosan Nanocomposites and Its Ameliorative Effect on Hyperglycemia, Insulin Resistance, and Oxidative Stress. Biol Trace Elem Res 2016; 169:310-9. [PMID: 26144273 DOI: 10.1007/s12011-015-0420-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 06/19/2015] [Indexed: 12/30/2022]
Abstract
In this paper, the preparation, characterization, and ameliorative effect on high-fat high-sucrose diet-induced hyperglycemia, insulin resistance, oxidative stress in mice of novel oxovanadium(IV)/chitosan (OV/CS) nanocomposites were investigated. The nanobiocomposite was produced by chemical reduction by chitosan and L-ascorbic acid using microwave heating, under environment-friendly conditions, using aqueous solutions, and notably, by using both mediators as reducing and stabilizing agents. In addition, OV/CS nanocomposites were characterized by transmission electron microscopy, energy dispersive spectroscopy, particle size, and zeta potential measurements. In vivo experiments were designed to examine whether the OV/CS nanocomposites would provide additional benefits on oxidative stress, hyperglycemia, and insulin resistance in mice with type 2 diabetes. The results rendered insulin resistant by treating with OV/CS nanocomposites alleviate insulin resistance and improve oxidative stress. Such nanocomposite seem to be a valuable therapy to achieve and/or maintain glycemic control and therapeutic agents in the treatment arsenal for insulin resistance and type 2 diabetes.
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Affiliation(s)
- Yanjun Liu
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
| | - Xu Jie
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
| | - Yongli Guo
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
| | - Xin Zhang
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong Province, China.
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Meng Z, Chen X, Liu Z, Chen S, Yu N, Wei P, Chen Z, Zhu M. NIR-laser-triggered smart full-polymer nanogels for synergic photothermal-/chemo-therapy of tumors. RSC Adv 2016. [DOI: 10.1039/c6ra20432e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Full-polymer smart nanogels (PNA–CS–PPy–DOX) have been developed. They exhibit excellent photothermal and drug-release abilities for the synergic therapy of tumors.
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Affiliation(s)
- Zhouqi Meng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Xiaoliang Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Zixiao Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Shaohua Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Nuo Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Peiling Wei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Zhigang Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
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Diaz C, Barrientos L, Carrillo D, Valdebenito J, Valenzuela ML, Allende P, Geaney H, O'Dwyer C. Solvent-less method for efficient photocatalytic α-Fe2O3 nanoparticles using macromolecular polymeric precursors. NEW J CHEM 2016. [DOI: 10.1039/c6nj00561f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient photocatalytic degradation of persistent cationic dye pollutants under visible light is possible with Fe2O3 nanoparticles formed by solvent-less synthesis using macromolecular precursor design.
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Affiliation(s)
- Carlos Diaz
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Lorena Barrientos
- Facultad de Química
- Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC
- Pontificia Universidad Católica de Chile
- Santiago de Chile
- Chile
| | - Daniel Carrillo
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Javier Valdebenito
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Maria L. Valenzuela
- Universidad Autonoma de Chile
- Institute of Applied Chemical Sciences
- Inorganic Chemistry and Molecular Materials Group
- Santiago
- Chile
| | - Patricio Allende
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Hugh Geaney
- Department of Chemistry
- University College Cork
- Cork
- Ireland
| | - Colm O'Dwyer
- Department of Chemistry
- University College Cork
- Cork
- Ireland
- Micro-Nano Systems Centre
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Lichawska ME, Bodek KH, Jezierska J, Kufelnicki A. Coordinative interaction of microcrystalline chitosan with oxovanadium (IV) ions in aqueous solution. Chem Cent J 2014; 8:50. [PMID: 25342963 PMCID: PMC4173100 DOI: 10.1186/s13065-014-0050-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/31/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chitosan, a non-toxic, biodegradable and biocompatible polysaccharide has attained great interest in pharmaceutical applications, as versatile drug delivery agent. Chitosan has been already shown to serve as vehicle for sustained drug release by chitosan-vanadium(IV) complex from a chitosan gel matrix. Therefore, chitosan gel proved to retain vanadium and preserve its insulin-mimetic efficacy. Nevertheless, there is a lack of reports concerning complexing equilibria in aqueous solution, in particular when using the more advantageous microcrystalline form of chitosan (MCCh). Microcrystalline chitosan shows a number of valuable features as compared with unmodified chitosan. RESULTS Experimental studies on complexing interaction between a special form of biomaterial - microcrystalline chitosan as ligand, L = MCCh, of two exemplary degrees of deacetylation DD (lower 79.8%; higher 97.7%) with M = oxovanadium (IV) ions have been carried out potentiometrically at four ligand-to-metal concentration ratios (2:1, 5:1, 8:1, 10:1). Among the five hydrolysis equilibria of VO(2+) reported up to now in the literature, under the conditions of the present work i.e. aqueous solutions of ionic strength I = 0.1 (KNO3) and temperature 25.0 ± 0.1°C, the predominating one was (VO)2(OH)2 (2+) formation: log β 20-2 = -7.01(2). Analysis of potentiometric results permitted to note that degree of deacetylation does not essentially influence the coordination mode of the complexes formed. In the case of both the two DD values, as well as for all the ligand-to-metal ratios, formation of hydroxyl deprotonated MLH-1 and ML2H-2 moieties has been confirmed potentiometrically (log β 11-1 = -0.68(2) for DD = 79.8% and -0.68(2) for DD = 97.7%, log β 12-2 = -7.64(6) for DD = 79.8% and -5.38(7) for DD = 97.7%). CONCLUSION Microcrystalline chitosan coordinates the vanadyl ions by the hydroxyl groups. Interaction of MCCh with VO(2+) ions in aqueous solution occurs within pH 5-7. Amounts of alkali excessive towards -NH2 are needed to deprotonate the OH groups. Deprotonation occurring at the chitosan hydroxyl groups permits a "pendant" or "bridge" model of coordination with VO(IV). Lack of complexation via deprotonation of amine groups, typical for simple cations and the molybdenum anion, has been indicated also by FTIR spectroscopy and EPR. Graphical AbstractCoordination modes of VO(IV) with microcrystalline chitosan (MCCh): (a)- pendant model, (b)- bridge model.
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Affiliation(s)
- Marta E Lichawska
- Department of Physical and Biocoordination Chemistry, Faculty of Pharmacy, Medical University of Łódź, 90-151 Łódź, Poland
| | - Kazimiera H Bodek
- Chair of Applied Pharmacy, Faculty of Pharmacy, Medical University of Łódź, 90-151 Łódź, Poland
| | - Julia Jezierska
- Faculty of Chemistry, University of Wrocław, 50-383 Wrocław, Poland
| | - Aleksander Kufelnicki
- Department of Physical and Biocoordination Chemistry, Faculty of Pharmacy, Medical University of Łódź, 90-151 Łódź, Poland
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Zhai Y, Zhou K, Xue Y, Qin F, Yang L, Yao X. Synthesis of water-soluble chitosan-coated nanoceria with excellent antioxidant properties. RSC Adv 2013. [DOI: 10.1039/c3ra22251a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Julkapli NM, Ahmad Z, Akil HM. Mechanical properties of 1,2,4,5-benzene tetra carboxylic chitosan-filled chitosan biocomposites. J Appl Polym Sci 2011. [DOI: 10.1002/app.33393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Thermal behavior of magnetically modalized poly(N-isopropylacrylamide)-chitosan based nanohydrogel. Colloids Surf B Biointerfaces 2010; 81:185-94. [PMID: 20702074 DOI: 10.1016/j.colsurfb.2010.07.009] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Revised: 05/01/2010] [Accepted: 07/05/2010] [Indexed: 11/23/2022]
Abstract
Poly(NIPAAm)-CS based nanohydrogels (NHGs) and iron oxide (Fe(3)O(4)) magnetic nanoparticles encapsulated magnetic nanohydrogels (MNHGs) were synthesized by free radical polymerization of N-isopropylacrylamide (NIPAAm) at 60 degrees C in presence of chitosan (CS) in different feed ratios. The polymerization of NIPAAm and the presence of CS as well as Fe(3)O(4) in hydrogels were confirmed from Fourier transform infrared (FTIR) spectra and X-ray diffraction (XRD), respectively. (13)C solid state nuclear magnetic resonance (NMR) spectra clearly revealed the grafting of CS into poly(NIPAAm). The scanning electron microscopy (SEM) and atomic force microscopy (AFM) images showed the formation of spherical shaped NHGs of different sizes ranging from 50 nm to 200 nm depending upon the feed ratios of CS and NIPAAm, which was further supported by mean hydrodynamic diameter measured by dynamic light scattering (DLS). It has been observed that CS not only served as a cross linker during polymerization but also plays a critical role in controlling the growth of NHG and enhancement in lower critical solution temperature (LCST). The encapsulation of Fe(3)O(4) nanoparticles (10-12 nm) into NHGs ( approximately 200 nm) was confirmed by transmission electron microscopy (TEM) and further corroborated with magnetic force microscopy (MFM) image. The LCST of poly(NIPAAm) was found to increase with increasing weight ratio of CS to NIPAAm. Furthermore, the encapsulation of iron oxide nanoparticles into hydrogels also caused an increment in LCST. Specifically, temperature optimized NHG and MNHG were fabricated having LCST close to 42 degrees C (hyperthermia temperature). The MNHG shows optimal magnetization, good specific absorption rate (under external AC magnetic field) and excellent cytocompatibility with L929 cell lines, which may find potential applications in hyperthermia treatment of cancer and targeted drug delivery.
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Kumirska J, Czerwicka M, Kaczyński Z, Bychowska A, Brzozowski K, Thöming J, Stepnowski P. Application of spectroscopic methods for structural analysis of chitin and chitosan. Mar Drugs 2010; 8:1567-636. [PMID: 20559489 PMCID: PMC2885081 DOI: 10.3390/md8051567] [Citation(s) in RCA: 525] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 03/30/2010] [Accepted: 04/27/2010] [Indexed: 12/22/2022] Open
Abstract
Chitin, the second most important natural polymer in the world, and its N-deacetylated derivative chitosan, have been identified as versatile biopolymers for a broad range of applications in medicine, agriculture and the food industry. Two of the main reasons for this are firstly the unique chemical, physicochemical and biological properties of chitin and chitosan, and secondly the unlimited supply of raw materials for their production. These polymers exhibit widely differing physicochemical properties depending on the chitin source and the conditions of chitosan production. The presence of reactive functional groups as well as the polysaccharide nature of these biopolymers enables them to undergo diverse chemical modifications. A complete chemical and physicochemical characterization of chitin, chitosan and their derivatives is not possible without using spectroscopic techniques. This review focuses on the application of spectroscopic methods for the structural analysis of these compounds.
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Affiliation(s)
- Jolanta Kumirska
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
| | - Małgorzata Czerwicka
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
| | - Zbigniew Kaczyński
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
| | - Anna Bychowska
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
| | - Krzysztof Brzozowski
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
| | - Jorg Thöming
- UFT-Centre for Environmental Research and Sustainable Technology, University of Bremen, Leobener Straße UFT, D-28359 Bremen, Germany; E-Mail:
(J.T.)
| | - Piotr Stepnowski
- Faculty of Chemistry, University of Gdansk, Sobieskiego 18/19, PL-80-952 Gdansk, Poland; E-Mails:
(M.C.);
(Z.K.);
(A.B.);
(K.B.);
(P.S.)
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Baran EJ. Oxovanadium(IV) complexes of carbohydrates: A brief overview. J Inorg Biochem 2009; 103:547-53. [DOI: 10.1016/j.jinorgbio.2008.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Revised: 09/29/2008] [Accepted: 10/03/2008] [Indexed: 10/21/2022]
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