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Gao J, Feng M, Yan Y, Zhao Z, Wang Y. Preparation of a sulfonated coal@ZVI@chitosan-acrylic acid composite and study of its removal of groundwater Cr(VI). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:6544-6558. [PMID: 36001265 DOI: 10.1007/s11356-022-22413-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
In this research, a new composite adsorbent (SC@ZVI@CS-AA) was designed and synthesized, and its application for the removal of Cr(VI) in groundwater was investigated. The interaction between SC@ZVI@CS-AA and Cr(VI) conformed to a pseudo-second-order model, and the adsorption process was dominated by chemisorption. The effects of material ratios, pH, temperature, SC@ZVI@CS-AA dosage, and coexisting ions on the removal of Cr(VI) were investigated. The removal efficiency of Cr(VI) by SC@ZVI@CS-AA reached 95%, and the reaction was significantly inhibited when SO42- was present. Thermodynamically, the adsorption of Cr(VI) proceeded spontaneously above 35 °C (ΔGθ < 0). According to scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectrometry, and synchronous thermal analysis, the removal mechanism of Cr(VI) by SC@ZVI@CS-AA was attributed to electrostatic attraction and reduction. In addition, SC@ZVI@CS-AA had good cyclic adsorption performance. Overall, the SC@ZVI@CS-AA composite showed great potential in the remediation of Cr(VI)-contaminated groundwater.
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Affiliation(s)
- Jianlei Gao
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450000, People's Republic of China
| | - Mengyuan Feng
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450000, People's Republic of China
| | - Yixin Yan
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450000, People's Republic of China.
| | - Zixu Zhao
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450000, People's Republic of China
| | - Yingchun Wang
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450000, People's Republic of China
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Zhou A, Qiu Z, Yang J, Yan R. A magnetic chitosan for efficient adsorption of vanadium (V) from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76263-76274. [PMID: 35668258 DOI: 10.1007/s11356-022-21256-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
The all-vanadium redox flow battery (VRFB) is becoming a promising technology for large-scale energy storage due to its advantages such as scalability and flexibility. In recent years, the VRFB has been successfully developed and put into use in many countries. It is expected that the abandoned VRFB will generate a large amount of vanadium waste. To our knowledge, there are few reports on the disposal of spent VRFBs. Herein, chitosan-coated nano-zero-valent iron (CS-Fe0) is proposed for the first time as adsorbents for the treatment of spent VRFBs. It can provide a new approach to deal with the upcoming large number of spent VRFBs. The calculated maximum adsorption capacity for V(V) of chitosan and CS-Fe0 reached 209.5 and 511.3 mg/g at 288 K, respectively. CS-Fe0 showed better adsorption performance than chitosan under different pH conditions and is easy to be separated from the liquid phase. The Freundlich isotherm was suitable for the adsorption process of chitosan, and CS-Fe0 was more consistent with the Langmuir isotherm. Ionic strength (0.05-0.5 M) had a positive effect on the adsorption capacity of CS-Fe0, and the influence of coexisting anions on CS-Fe0 could be negligible. FTIR and XPS analyses revealed that the primary mechanisms were the electrostatic attraction of chitosan and redox of Fe0. The present study confirmed that CS-Fe0 could be a potential material to efficiently trap V(V) from the VRFB electrolyte.
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Affiliation(s)
- Anhui Zhou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China
| | - Zhaofu Qiu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China
| | - Ji Yang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China.
| | - Ruiqi Yan
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control On Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China
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Zhang S, Chang Y, Zhang Q, Yuan Y, Qi Q, Lu X. Characterization of Salmonella endolysin XFII produced by recombinant Escherichia coli and its application combined with chitosan in lysing Gram-negative bacteria. Microb Cell Fact 2022; 21:171. [PMID: 35999567 PMCID: PMC9396760 DOI: 10.1186/s12934-022-01894-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/11/2022] [Indexed: 11/15/2022] Open
Abstract
Background Salmonella is a common foodborne pathogen, which can cause intestinal diseases. In the last decades, the overuse of antibiotics has led to a pandemic of drug-resistant bacterial infections. To tackle the burden of antimicrobial resistant pathogens, it is necessary to develop new antimicrobial drugs with novel modes of action. However, the research and development of antibiotics has encountered bottlenecks, scientific hurdles in the development process, as well as safety and cost challenges. Phages and phage endolysins are promising antibacterial agents that can be used as an alternative to antibiotics. In this context, the expression of endolysin derived from different phages through microbial cells as a chassis seems to be an attractive strategy. Results In this study, a new endolysin from the Salmonella phage XFII-1, named XFII, was screened and obtained. The endolysin yield exceeded 100 mg/mL by heterologous expression from E. coli BL21 and short induction. The endolysin XFII exhibited high bactericidal activity at a concentration of 0.5 μg/mL and reduced the OD600 nm of EDTA-pretreated E. coli JM109 from 0.8 to 0.2 within 5 min. XFII exhibited good thermo-resistance, as it was very stable at different temperatures from 20 to 80℃. Its bactericidal activity could keep constant at 4 °C for 175 days. In addition, the endolysin was able to exert lytic activity in eutrophic conditions, including LB medium and rabbit serum, and the lytic activity was even increased by 13.8% in 10% serum matrices. XFII also showed bactericidal activity against many Gram-negative bacteria, including Salmonella, E. coli, Acinetobacter baumannii, and Klebsiella pneumoniae. Surprisingly, the combination of endolysin XFII and chitosan showed a strong synergy in lysing E. coli and Salmonella without EDTA-pretreatment, and the OD600 nm of E. coli decreased from 0.88 to 0.58 within 10 min. Conclusions The novel globular endolysin XFII was screened and successfully expressed in E. coli BL21. Endolysin XFII exhibits a broad lysis spectrum, a rapid and strong bactericidal activity, good stability at high temperatures and under eutrophic conditions. Combined with chitosan, XFII could spontaneously lyse Gram-negative bacteria without pretreatment. This work presented the first characterization of combining endolysin and chitosan in spontaneously lysing Gram-negative bacteria in vitro. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01894-2.
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Affiliation(s)
- Shuhang Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Yan Chang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Qing Zhang
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Yingbo Yuan
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Qingsheng Qi
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Xuemei Lu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
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Juang JH, Wang JJ, Shen CR, Lin SH, Chen CY, Kao CW, Chen CL, Wu ST, Tsai ZT, Wang YM. Magnetic Resonance Imaging of Transplanted Porcine Neonatal Pancreatic Cell Clusters Labeled with Exendin-4-Conjugated Manganese Magnetism-Engineered Iron Oxide Nanoparticles. NANOMATERIALS 2022; 12:nano12071222. [PMID: 35407339 PMCID: PMC9000895 DOI: 10.3390/nano12071222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 02/05/2023]
Abstract
Recently, we have shown that manganese magnetism-engineered iron oxide nanoparticles (MnMEIO NPs) conjugated with exendin-4 (Ex4) act as a contrast agent that directly trace implanted mouse islet β-cells by magnetic resonance imaging (MRI). Here we further advanced this technology to track implanted porcine neonatal pancreatic cell clusters (NPCCs) containing ducts, endocrine, and exocrine cells. NPCCs from one-day-old neonatal pigs were isolated, cultured for three days, and then incubated overnight with MnMEIO-Ex4 NPs. Binding of NPCCs and MnMEIO-Ex4 NPs was confirmed with Prussian blue staining in vitro prior to the transplantation of 2000 MnMEIO-Ex4 NP-labeled NPCCs beneath the left renal capsule of six nondiabetic nude mice. The 7.0 T MRI on recipients revealed persistent hypointense areas at implantation sites for up to 54 days. The MR signal intensity of the graft on left kidney reduced 62–88% compared to the mirror areas on the contralateral kidney. Histological studies showed colocalization of insulin/iron and SOX9/iron staining in NPCC grafts, indicating that MnMEIO-Ex4 NPs were taken up by mature β-cells and pancreatic progenitors. We conclude that MnMEIO-Ex4 NPs are excellent contrast agents for detecting and long-term monitoring implanted NPCCs by MRI.
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Affiliation(s)
- Jyuhn-Huarng Juang
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Correspondence: (J.-H.J.); (Y.-M.W.)
| | - Jiun-Jie Wang
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-J.W.); (S.-H.L.)
- Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Chia-Rui Shen
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (C.-R.S.); (S.-T.W.)
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Sung-Han Lin
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-J.W.); (S.-H.L.)
| | - Chen-Yi Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Chen-Wei Kao
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Chen-Ling Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Shu-Ting Wu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (C.-R.S.); (S.-T.W.)
| | - Zei-Tsan Tsai
- Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
| | - Yun-Ming Wang
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-Devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Correspondence: (J.-H.J.); (Y.-M.W.)
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Farinelli G, Di Luca A, Kaila VRI, MacLachlan MJ, Tiraferri A. Fe-chitosan complexes for oxidative degradation of emerging contaminants in water: Structure, activity, and reaction mechanism. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124662. [PMID: 33257118 DOI: 10.1016/j.jhazmat.2020.124662] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/28/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Versatile and ecofriendly methods to perform oxidations at near-neutral pH are of crucial importance for processes aimed at purifying water. Chitosan, a deacetylated form of chitin, is a promising starting material owing to its biocompatibility and ability to form stable films and complexes with metals. Here, we report a novel chitosan-based organometallic complex that was tested both as homogeneous and heterogeneous catalyst in the degradation of contaminants of emerging concern in water. The stoichiometry of the complex was experimentally verified with different metals, namely, Cu(II), Fe(III), Fe(II), Co(II), Pd(II), and Mn(II), and we identified the chitosan-Fe(III) complex as the most efficient catalyst. This complex effectively degraded phenol, triclosan, and 3-chlorophenol in the presence of hydrogen peroxide. A putative ferryl-mediated reaction mechanism is proposed based on experimental data, density functional theory calculations, and kinetic modeling. Finally, a film of the chitosan-Fe(III) complex was synthesized and proven a promising supported heterogeneous catalyst for water purification.
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Affiliation(s)
- Giulio Farinelli
- Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Andrea Di Luca
- Department of Biochemistry and Biophysics, Stockholm University, Svante Arrhenius väg 16C, 10691 Stockholm, Sweden
| | - Ville R I Kaila
- Department of Biochemistry and Biophysics, Stockholm University, Svante Arrhenius väg 16C, 10691 Stockholm, Sweden
| | - Mark J MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada.
| | - Alberto Tiraferri
- Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.
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Juang JH, Wang JJ, Shen CR, Chen CY, Kao CW, Chen CL, Lin SH, Wu ST, Li WC, Tsai ZT. Magnetic Resonance Imaging of Transplanted Porcine Neonatal Pancreatic Cell Clusters Labeled with Chitosan-Coated Superparamagnetic Iron Oxide Nanoparticles in Mice. Polymers (Basel) 2021; 13:polym13081238. [PMID: 33920427 PMCID: PMC8068980 DOI: 10.3390/polym13081238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/26/2022] Open
Abstract
Neonatal pancreatic cell clusters (NPCCs) are potential tissues for the treatment of diabetes. Different from adult cells, they continuously proliferate and differentiate after transplantation. In this study, we utilized magnetic resonance imaging (MRI) to detect and monitor implanted NPCCs. NPCCs were isolated from one-day-old neonatal pigs, cultured for three days, and then incubated overnight with the contrast agent chitosan-coated superparamagnetic iron oxide (CSPIO) nanoparticles. In vitro, Prussian blue staining and MR scans of CSPIO-labeled NPCCs were performed. In vivo, we transplanted 2000 CSPIO-labeled NPCCs under the kidney capsule of nondiabetic nude mice. Recipients were scanned with 7.0T MRI. Grafts were removed for histology with insulin and Prussian blue staining. After being incubated overnight with CSPIO, NPCCs showed positive iron staining and appeared as dark spots on MR scans. After transplantation of CSPIO-labeled NPCCs, persistent hypointense areas were observed at recipients’ implant sites for up to 54 days. Moreover, histology showed colocalization of the insulin and iron staining in 15-, 51- and 55-day NPCC grafts. Our results indicate that transplanted NPCCs survived and differentiated to β cells after transplantation, and that MRI is a useful tool for the detection and monitoring of CSPIO-labeled NPCC grafts.
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Affiliation(s)
- Jyuhn-Huarng Juang
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Correspondence:
| | - Jiun-Jie Wang
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-J.W.); (S.-H.L.)
- Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Chia-Rui Shen
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (C.-R.S.); (S.-T.W.)
| | - Chen-Yi Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Chen-Wei Kao
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Chen-Ling Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; (C.-Y.C.); (C.-W.K.); (C.-L.C.)
| | - Sung-Han Lin
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-J.W.); (S.-H.L.)
| | - Shu-Ting Wu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (C.-R.S.); (S.-T.W.)
| | - Wan-Chun Li
- Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
| | - Zei-Tsan Tsai
- Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan 33302, Taiwan;
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Maciel VB, Yoshida CM, Boesch C, Goycoolea FM, Carvalho RA. Iron-rich chitosan-pectin colloidal microparticles laden with ora-pro-nobis (Pereskia aculeata Miller) extract. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105313] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zariwala MG, Bendre H, Markiv A, Farnaud S, Renshaw D, Taylor KM, Somavarapu S. Hydrophobically modified chitosan nanoliposomes for intestinal drug delivery. Int J Nanomedicine 2018; 13:5837-5848. [PMID: 30310283 PMCID: PMC6166747 DOI: 10.2147/ijn.s166901] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Encapsulation of hydrophilic drugs within liposomes can be challenging. Methods A novel chitosan derivative, O-palmitoyl chitosan (OPC) was synthesized from chitosan and palmitoyl chloride using methane-sulfonic acid as a solvent. The success of synthesis was confirmed by Fourier transform infra-red (FT-IR) spectroscopy and proton NMR spectroscopy (H-NMR). Liposomes encapsulating ferrous sulphate as a model hydrophilic drug for intestinal delivery were prepared with or without OPC inclusion (Lipo-Fe and OPC-Lipo-Fe). Results Entrapment of iron was significantly higher in OPC containing liposomes compared to controls. Quantitative iron absorption from the OPC liposomes was significantly higher (1.5-fold P<0.05) than free ferrous sulphate controls. Qualitative uptake analysis by confocal imaging using coumarin-6 dye loaded liposomes also indicated higher cellular uptake and internalization of the OPC-containing liposomes. Conclusion These findings suggest that addition of OPC during liposome preparation creates robust vesicles that have improved mucoadhesive and absorption enhancing properties. The chitosan derivative OPC therefore provides a novel alternative for formulation of delivery vehicles targeting intestinal absorption.
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Affiliation(s)
- M Gulrez Zariwala
- Faculty of Science and Technology, University of Westminster, London, UK
| | - Harshada Bendre
- Department of Pharmaceutics, University College London School of Pharmacy, London, UK,
| | - Anatoliy Markiv
- Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Sebastien Farnaud
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Derek Renshaw
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Kevin Mg Taylor
- Department of Pharmaceutics, University College London School of Pharmacy, London, UK,
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Utilization of diatomite/chitosan–Fe (III) composite for the removal of anionic azo dyes from wastewater: Equilibrium, kinetics and thermodynamics. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.12.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zariwala MG, Farnaud S, Merchant Z, Somavarapu S, Renshaw D. Ascorbyl palmitate/DSPE-PEG nanocarriers for oral iron delivery: preparation, characterisation and in vitro evaluation. Colloids Surf B Biointerfaces 2013; 115:86-92. [PMID: 24333557 DOI: 10.1016/j.colsurfb.2013.11.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 11/03/2013] [Accepted: 11/17/2013] [Indexed: 10/26/2022]
Abstract
The objective of this study was to encapsulate iron in nanocarriers formulated with ascorbyl palmitate and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine polyethylene glycol (DSPE-PEG) for oral delivery. Blank and iron (Fe) loaded nanocarriers were prepared by a modified thin film method using ascorbyl palmitate and DSPE-PEG. Surface charge of the nanocarriers was modified by the inclusion of chitosan (CHI) during the formulation process. Blank and iron loaded ascorbyl palmitate/DSPE nanocarriers were visualised by transmission electron microscopy (TEM) and physiochemical characterisations of the nanocarriers carried out to determine the mean particle size and zeta potential. Inclusion of chitosan imparted a net positive charge on the nanocarrier surface and also led to an increase in mean particle size. Iron entrapment in ascorbyl palmitate-Fe and ascorbyl palmitate-CHI-Fe nanocarriers was 67% and 76% respectively, suggesting a beneficial effect of chitosan on nanocarrier Fe entrapment. Iron absorption was estimated by measuring Caco-2 cell ferritin formation using ferrous sulphate as a reference standard. Iron absorption from ascorbyl palmitate-Fe (592.17±21.12 ng/mg cell protein) and ascorbyl palmitate-CHI-Fe (800.12±47.6 ng/mg, cell protein) nanocarriers was 1.35-fold and 1.5-fold higher than that from free ferrous sulphate, respectively (505.74±23.73 ng/mg cell protein) (n=6, p<0.05). This study demonstrates for the first time preparation and characterisation of iron loaded ascorbyl palmitate/DSPE PEG nanocarriers, and that engineering of the nanocarriers with chitosan leads to a significant augmentation of iron absorption.
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Affiliation(s)
- M Gulrez Zariwala
- Faculty of Science & Technology, University of Westminster, 115 New Cavendish Street, London W1W 6UW, United Kingdom.
| | - Sebastien Farnaud
- Department of Life Sciences, University of Bedfordshire, Luton, Bedfordshire LU1 3JU, United Kingdom
| | - Zahra Merchant
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Derek Renshaw
- Faculty of Science & Technology, University of Westminster, 115 New Cavendish Street, London W1W 6UW, United Kingdom
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Gayathri P, Kumar AS. An Iron Impurity in Multiwalled Carbon Nanotube Complexes with Chitosan that Biomimics the Heme-Peroxidase Function. Chemistry 2013; 19:17103-12. [DOI: 10.1002/chem.201303075] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Indexed: 11/08/2022]
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Zariwala M, Elsaid N, Jackson TL, Corral López F, Farnaud S, Somavarapu S, Renshaw D. A novel approach to oral iron delivery using ferrous sulphate loaded solid lipid nanoparticles. Int J Pharm 2013; 456:400-7. [DOI: 10.1016/j.ijpharm.2013.08.070] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 08/25/2013] [Accepted: 08/28/2013] [Indexed: 01/24/2023]
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Horzum N, Demir MM, Nairat M, Shahwan T. Chitosan fiber-supported zero-valent iron nanoparticles as a novel sorbent for sequestration of inorganic arsenic. RSC Adv 2013. [DOI: 10.1039/c3ra23454a] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Zhang W, Jia S, Wu Q, Wu S, Ran J, Liu Y, Hou J. Studies of the magnetic field intensity on the synthesis of chitosan-coated magnetite nanocomposites by co-precipitation method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Qu J, Hu Q, Shen K, Zhang K, Li Y, Li H, Zhang Q, Wang J, Quan W. The preparation and characterization of chitosan rods modified with Fe3+ by a chelation mechanism. Carbohydr Res 2011; 346:822-7. [DOI: 10.1016/j.carres.2011.02.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 01/27/2011] [Accepted: 02/03/2011] [Indexed: 10/18/2022]
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Klepka MT, Lawniczak-Jablonska K, Wolska A, Slawska-Waniewska A, Rodrigues CA, Lorini J, Cruz KAD. Iron location in O-carboxymethyl chitosans determined by X-ray absorption spectroscopy. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2010.11.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Liu T, Zhao L, Sun D, Tan X. Entrapment of nanoscale zero-valent iron in chitosan beads for hexavalent chromium removal from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2010; 184:724-730. [PMID: 20855161 DOI: 10.1016/j.jhazmat.2010.08.099] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 08/23/2010] [Accepted: 08/25/2010] [Indexed: 05/29/2023]
Abstract
Nanoscale zero-valent iron (NZVI) was successfully entrapped in chitosan (CS) beads for reduction of Cr (VI) from wastewater. The removal mechanism may include both physical adsorption of Cr (VI) on the surface or inside of CS-NZVI beads and subsequent reduction of Cr (VI) to Cr (III). The free amino groups and hydroxyl groups on CS may contribute little to hinder the formation of Fe(III)-Cr(III) precipitate. Entrapment of NZVI in CS beads prevents the particles from aggregation and oxidation. The results indicate that there is no significant difference between the reaction rates of bare NZVI and entrapped NZVI. Cr (VI) reduction kinetics follows a pseudo-first-order rate expression. The reduction capacity for Cr (VI) increases with increasing temperature and NZVI dosage but decreases with the increase in initial concentration of Cr (VI) and pH values. This study demonstrates that entrapment of NZVI in CS beads has the potential to become a promising technique for in situ groundwater remediation.
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Affiliation(s)
- Tingyi Liu
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin 300072, China
| | - Lin Zhao
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin 300072, China.
| | - Desheng Sun
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin 300072, China
| | - Xin Tan
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin 300072, China
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18
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Hermida LG, Roig A, Bregni C, Sabés-Xamaní M, Barnadas-Rodríguez R. Preparation and characterization of iron-containing liposomes: their effect on soluble iron uptake by Caco-2 cells. J Liposome Res 2010; 21:203-12. [DOI: 10.3109/08982104.2010.517536] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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19
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Isayeva I, Sarkar Das S, Chang A, DeFoe J, Luu HMD, Vorvolakos K, Patwardhan D, Whang J, Pollack S. pH effect on the synthesis, shear properties, and homogeneity of iron-crosslinked hyaluronic acid-based gel/adhesion barrier. J Biomed Mater Res B Appl Biomater 2010; 95:9-18. [DOI: 10.1002/jbm.b.31677] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Chanthateyanonth R, Ruchirawat S, Srisitthiratkul C. Preparation of new water-soluble chitosan containing hyperbranched-vinylsulfonic acid sodium salt and their antimicrobial activities and chelation with metals. J Appl Polym Sci 2010. [DOI: 10.1002/app.31732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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Study of iron(III) polymer complexes using Moessbauer spectroscopy. Polym Bull (Berl) 2009. [DOI: 10.1007/s00289-009-0227-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Hernández R, Zamora-Mora V, Sibaja-Ballestero M, Vega-Baudrit J, López D, Mijangos C. Influence of iron oxide nanoparticles on the rheological properties of hybrid chitosan ferrogels. J Colloid Interface Sci 2009; 339:53-9. [DOI: 10.1016/j.jcis.2009.07.066] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Revised: 07/23/2009] [Accepted: 07/24/2009] [Indexed: 11/29/2022]
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23
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Kufelnicki A, Lichawska ME, Bodek KH. Interaction of microcrystalline chitosan (MCCh) with Mo(VI) in aqueous solution. J Appl Polym Sci 2009. [DOI: 10.1002/app.30756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Tielong L, Bing G, Na Z, Zhaohui J, Xinhua Q. Hexavalent chromium removal from water using chitosan-Fe0nanoparticles. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/188/1/012057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Geng B, Jin Z, Li T, Qi X. Preparation of chitosan-stabilized Fe(0) nanoparticles for removal of hexavalent chromium in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:4994-5000. [PMID: 19545888 DOI: 10.1016/j.scitotenv.2009.05.051] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 05/22/2009] [Accepted: 05/26/2009] [Indexed: 05/28/2023]
Abstract
Chitosan-stabilized Fe(0) nanoparticles (CTO-Fe(0)) and Fe(0) nanoparticles synthesized in ethanol-water mixed system (EW-Fe(0)) were tested for reduction of Cr(VI) in water. Fourier transform infrared (FTIR) study suggested that nitrogen and oxygen atoms are the binding sites for chitosan on iron which was accountable for the stability of Fe(0) nanoparticles. While the EW-Fe(0) ignites spontaneously when exposed to air, the CTO-Fe(0) was still in zero valence state after exposure to air over 2-month period as shown by X-ray powder diffraction patterns. Batch experiments demonstrated that the maximum Cr(VI) reduction rates for CTO-Fe(0) was about 3 times higher than EW-Fe(0). Characterizations with high-resolution X-ray photoelectron spectroscopy (HR-XPS) revealed that Cr(VI) was reduced to Cr(III) and Fe(III) was the only component present on the Fe(0) nanoparticles surface. Additionally, chitosan can inhibited the formation of Fe(III)-Cr(III) precipitation due to its high ability to chelate Fe(III) which resulted in k(obs) for CTO-Fe(0) was about 1-3 times higher than EW-Fe(0). Due to the fast reaction kinetics and good stability against oxidation in air, the chitosan-stabilized Fe(0) nanoparticles have the potential to become an effective agent for in situ subsurface environment remediation.
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Affiliation(s)
- Bing Geng
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China
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Geng B, Jin Z, Li T, Qi X. Kinetics of hexavalent chromium removal from water by chitosan-Fe0 nanoparticles. CHEMOSPHERE 2009; 75:825-830. [PMID: 19217139 DOI: 10.1016/j.chemosphere.2009.01.009] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 12/31/2008] [Accepted: 01/05/2009] [Indexed: 05/27/2023]
Abstract
Chitosan-Fe(0) nanoparticles (chitosan-Fe(0)) were prepared using nontoxic and biodegradable chitosan as a stabilizer. Batch experiments were conducted to evaluate the influences of initial Cr(VI) concentration and other factors on Cr(VI) reduction on the surface of the chitosan-Fe(0). The overall disappearance of Cr(VI) may include both physical adsorption of Cr(VI) onto the chitosan-Fe(0) surface and subsequent reduction of Cr(VI) to Cr(III). The rate of reduction of Cr(VI) to Cr(III) can be expressed by a pseudo-first-order reaction kinetics. The rate constants increase with the increase in temperature and iron loading but decrease with the increase in initial Cr(VI) concentration and pH. The apparent activation energy is found to be 33 kJ mol(-1), which is characteristic of a chemically controlled reaction. Characterization with high-resolution X-ray photoelectron spectroscopy reveals that after the reaction, relative to Cr(VI) and Fe(0), Cr(III) and Fe(III) are the predominant species on the surface of chitosan-Fe(0). Chitosan has also been found to inhibit the formation of Fe(III)-Cr(III) precipitation due to its high efficiency in chelating the Fe(III) ions. This study demonstrates that chitosan-Fe(0) has the potential to become an effective agent for in situ subsurface environment remediation.
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Affiliation(s)
- Bing Geng
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China
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27
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Raafat D, Sahl HG. Chitosan and its antimicrobial potential--a critical literature survey. Microb Biotechnol 2009; 2:186-201. [PMID: 21261913 PMCID: PMC3815839 DOI: 10.1111/j.1751-7915.2008.00080.x] [Citation(s) in RCA: 432] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2008] [Revised: 12/02/2008] [Accepted: 12/08/2008] [Indexed: 11/30/2022] Open
Abstract
Chitosan, an aminopolysaccharide biopolymer, has a unique chemical structure as a linear polycation with a high charge density, reactive hydroxyl and amino groups as well as extensive hydrogen bonding. It displays excellent biocompatibility, physical stability and processability. The term 'chitosan' describes a heterogeneous group of polymers combining a group of physicochemical and biological characteristics, which allow for a wide scope of applications that are both fascinating and as yet uncharted. The increased awareness of the potentials and industrial value of this biopolymer lead to its utilization in many applications of technical interest, and increasingly in the biomedical arena. Although not primarily used as an antimicrobial agent, its utility as an ingredient in both food and pharmaceutical formulations lately gained more interest, when a scientific understanding of at least some of the pharmacological activities of this versatile carbohydrate began to evolve. However, understanding the various factors that affect its antimicrobial activity has become a key issue for a better usage and a more efficient optimization of chitosan formulations. Moreover, the use of chitosan in antimicrobial systems should be based on sufficient knowledge of the complex mechanisms of its antimicrobial mode of action, which in turn would help to arrive at an appreciation of its entire antimicrobial potential.
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Affiliation(s)
- Dina Raafat
- Institute for Medical Microbiology, Immunology and Parasitology (IMMIP), Pharmaceutical Microbiology Unit, University of Bonn, D-53115 Bonn, Germany.
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28
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Klepka MT, Nedelko N, Greneche JM, Lawniczak-Jablonska K, Demchenko IN, Slawska-Waniewska A, Rodrigues CA, Debrassi A, Bordini C. Local atomic structure and magnetic ordering of iron in Fe-chitosan complexes. Biomacromolecules 2008; 9:1586-94. [PMID: 18461995 DOI: 10.1021/bm800044y] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The iron crosslinked chitosan (Ch-Fe-CL) and N-carboxylmethyl chitosan (N-CM-Ch-Fe) complexes were studied by complementary techniques: structurally sensitive Mössbauer and X-ray absorption methods, as well as static magnetic measurements. A detailed and consistent description of these complexes including, besides the overall magnetic behavior, the spin ordering and local atomic structure around Fe ions is presented. Fe atoms in the investigated samples are mostly penta-coordinated and appear in a high spin Fe (3+) ionic state. In Ch-Fe-CL, two kinds of Fe near neighbors are equally probable and several Fe atoms are situated in the second coordination sphere. The magnetic interactions between these Fe ions lead to a sperimagnetic-like ordering. In N-CM-Ch-Fe, only one Fe neighborhood was found. Other Fe atoms were identified neither in the first nor in the second coordination sphere, but the third coordination sphere indicates the presence of Fe atoms. The magnetic coupling between these atoms is antiferromagnetic, but the dominant part of Fe in this sample remains in a paramagnetic state.
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Affiliation(s)
- Marcin T Klepka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46 PL-02668, Warsaw, Poland.
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Insights into the mode of action of chitosan as an antibacterial compound. Appl Environ Microbiol 2008; 74:3764-73. [PMID: 18456858 DOI: 10.1128/aem.00453-08] [Citation(s) in RCA: 473] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Chitosan is a polysaccharide biopolymer that combines a unique set of versatile physicochemical and biological characteristics which allow for a wide range of applications. Although its antimicrobial activity is well documented, its mode of action has hitherto remained only vaguely defined. In this work we investigated the antimicrobial mode of action of chitosan using a combination of approaches, including in vitro assays, killing kinetics, cellular leakage measurements, membrane potential estimations, and electron microscopy, in addition to transcriptional response analysis. Chitosan, whose antimicrobial activity was influenced by several factors, exhibited a dose-dependent growth-inhibitory effect. A simultaneous permeabilization of the cell membrane to small cellular components, coupled to a significant membrane depolarization, was detected. A concomitant interference with cell wall biosynthesis was not observed. Chitosan treatment of Staphylococcus simulans 22 cells did not give rise to cell wall lysis; the cell membrane also remained intact. Analysis of transcriptional response data revealed that chitosan treatment leads to multiple changes in the expression profiles of Staphylococcus aureus SG511 genes involved in the regulation of stress and autolysis, as well as genes associated with energy metabolism. Finally, a possible mechanism for chitosan's activity is postulated. Although we contend that there might not be a single classical target that would explain chitosan's antimicrobial action, we speculate that binding of chitosan to teichoic acids, coupled with a potential extraction of membrane lipids (predominantly lipoteichoic acid) results in a sequence of events, ultimately leading to bacterial death.
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30
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Hernández RB, Franco AP, Yola OR, López-Delgado A, Felcman J, Recio MAL, Mercê ALR. Coordination study of chitosan and Fe3+. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.07.024] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Cui W, Hu Q, Wu J, Li B, Shen J. Preparation and characterization of magnetite/hydroxyapatite/chitosan nanocomposite byin situ compositing method. J Appl Polym Sci 2008. [DOI: 10.1002/app.28013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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McIlwee HA, Schauer CL, Praig VG, Boukherroub R, Szunerits S. Thin chitosan films as a platform for SPR sensing of ferric ions. Analyst 2008; 133:673-7. [DOI: 10.1039/b717736d] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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A 57Fe Mössbauer characterization of Fe-biopolymer complexes and their relevance to biological molecules. ACTA ACUST UNITED AC 2006. [DOI: 10.1007/s10751-006-9281-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Nedelko N, Ślawska-Waniewska A, Kaźmierczak J, Rodrigues CA, Bordini C. Magnetic studies of Fe(III)–crosslinked chitosan. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pssc.200562427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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