201
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Kadokawa JI. Fabrication of nanostructured and microstructured chitin materials through gelation with suitable dispersion media. RSC Adv 2015. [DOI: 10.1039/c4ra15319g] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Regeneration from chitin gels with suitable dispersion media results in the efficient fabrication of nano- and microstructured materials.
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Affiliation(s)
- Jun-ichi Kadokawa
- Graduate School of Science and Engineering
- Kagoshima University
- Kagoshima 890-0065
- Japan
- Research Center for Environmentally Friendly Materials Engineering
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202
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Abstract
In this paper, we show that biodegradable and biocompatible organogels can be formed with chitin as the filler material and triglycerides as the continuous hydrophobic phase.
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Affiliation(s)
- Constantinos V. Nikiforidis
- Top Institute Food & Nutrition
- 6700AN Wageningen
- The Netherlands
- Physics and Physical Chemistry of Foods
- Wageningen University
| | - Elke Scholten
- Top Institute Food & Nutrition
- 6700AN Wageningen
- The Netherlands
- Physics and Physical Chemistry of Foods
- Wageningen University
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203
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ZHANG J, WANG ZQ, CHEN W, BAI ZW. Preparation and Enantioseparation of Biselector Chiral Stationary Phases Based on Amylose and Chitin Derivatives. ANAL SCI 2015; 31:1091-7. [DOI: 10.2116/analsci.31.1091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Juan ZHANG
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology
- School of Chemical Engineering and Pharmacy, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology
| | - Zhao-Qun WANG
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology
| | - Wei CHEN
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology
| | - Zheng-Wu BAI
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology
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204
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González JA, Villanueva ME, Peralta Ramos ML, Pérez CJ, Piehl LL, Copello GJ. Chitin based hybrid composites reinforced with graphene derivatives: a nanoscale study. RSC Adv 2015. [DOI: 10.1039/c5ra13563j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two hybrid materials composed by chitin and nGO/rGO were obtained. nGO acts as a more efficient reinforcer than rGO due to the higher amount of hydrogen bondings established with chitin.
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Affiliation(s)
- Joaquín Antonio González
- Cátedra de Química Analítica Instrumental
- Facultad de Farmacia y Bioquímica
- Universidad de Buenos Aires (UBA)
- C1113AAD Buenos Aires
- Argentina
| | - María Emilia Villanueva
- Cátedra de Química Analítica Instrumental
- Facultad de Farmacia y Bioquímica
- Universidad de Buenos Aires (UBA)
- C1113AAD Buenos Aires
- Argentina
| | - María Luz Peralta Ramos
- Cátedra de Química Analítica Instrumental
- Facultad de Farmacia y Bioquímica
- Universidad de Buenos Aires (UBA)
- C1113AAD Buenos Aires
- Argentina
| | - Claudio Javier Pérez
- Instituto en Investigaciones en Ciencia y Tecnologías de Materiales
- Universidad de Mar del Plata
- CP7600 Mar del Plata
- Argentina
| | - Lidia Leonor Piehl
- Cátedra de Física
- Facultad de Farmacia y Bioquímica
- Universidad de Buenos Aires (UBA)
- Argentina
| | - Guillermo Javier Copello
- Cátedra de Química Analítica Instrumental
- Facultad de Farmacia y Bioquímica
- Universidad de Buenos Aires (UBA)
- C1113AAD Buenos Aires
- Argentina
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205
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Chau M, Sriskandha SE, Thérien-Aubin H, Kumacheva E. Supramolecular Nanofibrillar Polymer Hydrogels. SUPRAMOLECULAR POLYMER NETWORKS AND GELS 2015. [DOI: 10.1007/978-3-319-15404-6_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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206
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Araki J, Kurihara M. Preparation of Sterically Stabilized Chitin Nanowhisker Dispersions by Grafting of Poly(ethylene glycol) and Evaluation of Their Dispersion Stability. Biomacromolecules 2014; 16:379-88. [DOI: 10.1021/bm5016078] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Araki
- Faculty
of Textile Science
and Technology, and Institute for Fiber
Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research
(ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan
| | - Mari Kurihara
- Graduate School of Science
and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan
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207
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Ifuku S, Suzuki N, Izawa H, Morimoto M, Saimoto H. Surface maleylation and naphthaloylation of chitin nanofibers for property enhancement. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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208
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Muzzarelli RAA, El Mehtedi M, Mattioli-Belmonte M. Emerging biomedical applications of nano-chitins and nano-chitosans obtained via advanced eco-friendly technologies from marine resources. Mar Drugs 2014; 12:5468-502. [PMID: 25415349 PMCID: PMC4245541 DOI: 10.3390/md12115468] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/02/2014] [Accepted: 11/03/2014] [Indexed: 12/31/2022] Open
Abstract
The present review article is intended to direct attention to the technological advances made in the 2010-2014 quinquennium for the isolation and manufacture of nanofibrillar chitin and chitosan. Otherwise called nanocrystals or whiskers, n-chitin and n-chitosan are obtained either by mechanical chitin disassembly and fibrillation optionally assisted by sonication, or by e-spinning of solutions of polysaccharides often accompanied by poly(ethylene oxide) or poly(caprolactone). The biomedical areas where n-chitin may find applications include hemostasis and wound healing, regeneration of tissues such as joints and bones, cell culture, antimicrobial agents, and dermal protection. The biomedical applications of n-chitosan include epithelial tissue regeneration, bone and dental tissue regeneration, as well as protection against bacteria, fungi and viruses. It has been found that the nano size enhances the performances of chitins and chitosans in all cases considered, with no exceptions. Biotechnological approaches will boost the applications of the said safe, eco-friendly and benign nanomaterials not only in these fields, but also for biosensors and in targeted drug delivery areas.
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Affiliation(s)
- Riccardo A A Muzzarelli
- Faculty of Medicine, Department of Clinical & Molecular Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
| | - Mohamad El Mehtedi
- Faculty of Engineering, Department of Industrial Engineering & Mathematical Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
| | - Monica Mattioli-Belmonte
- Faculty of Medicine, Department of Clinical & Molecular Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
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209
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Ifuku S. Chitin and chitosan nanofibers: preparation and chemical modifications. Molecules 2014; 19:18367-80. [PMID: 25393598 PMCID: PMC6271128 DOI: 10.3390/molecules191118367] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/15/2014] [Accepted: 11/04/2014] [Indexed: 01/20/2023] Open
Abstract
Chitin nanofibers are prepared from the exoskeletons of crabs and prawns, squid pens and mushrooms by a simple mechanical treatment after a series of purification steps. The nanofibers have fine nanofiber networks with a uniform width of approximately 10 nm. The method used for chitin-nanofiber isolation is also successfully applied to the cell walls of mushrooms. Commercial chitin and chitosan powders are also easily converted into nanofibers by mechanical treatment, since these powders consist of nanofiber aggregates. Grinders and high-pressure waterjet systems are effective for disintegrating chitin into nanofibers. Acidic conditions are the key factor to facilitate mechanical fibrillation. Surface modification is an effective way to change the surface property and to endow nanofiber surface with other properties. Several modifications to the chitin NF surface are achieved, including acetylation, deacetylation, phthaloylation, naphthaloylation, maleylation, chlorination, TEMPO-mediated oxidation, and graft polymerization. Those derivatives and their properties are characterized.
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Affiliation(s)
- Shinsuke Ifuku
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8550, Japan.
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210
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Togashi D, Otsuka I, Borsali R, Takeda K, Enomoto K, Kawaguchi S, Narumi A. Maltopentaose-Conjugated CTA for RAFT Polymerization Generating Nanostructured Bioresource-Block Copolymer. Biomacromolecules 2014; 15:4509-19. [DOI: 10.1021/bm501314f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Daichi Togashi
- Department
of Polymer Science and Engineering, Graduate School of Science and
Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510, Japan
| | - Issei Otsuka
- Univ. Grenoble
Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
| | - Redouane Borsali
- Univ. Grenoble
Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
| | - Koichi Takeda
- Department
of Polymer Science and Engineering, Graduate School of Science and
Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510, Japan
| | - Kazushi Enomoto
- Department
of Polymer Science and Engineering, Graduate School of Science and
Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510, Japan
| | - Seigou Kawaguchi
- Department
of Polymer Science and Engineering, Graduate School of Science and
Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510, Japan
| | - Atsushi Narumi
- Department
of Polymer Science and Engineering, Graduate School of Science and
Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510, Japan
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211
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Nanostructured membranes based on native chitin nanofibers prepared by mild process. Carbohydr Polym 2014; 112:255-63. [DOI: 10.1016/j.carbpol.2014.05.038] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 05/07/2014] [Accepted: 05/12/2014] [Indexed: 11/21/2022]
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212
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Surface-initiated atom transfer radical polymerization from chitin nanofiber macroinitiator film. Carbohydr Polym 2014; 112:119-24. [DOI: 10.1016/j.carbpol.2014.05.079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 05/21/2014] [Accepted: 05/29/2014] [Indexed: 11/21/2022]
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213
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Tsutsumi Y, Koga H, Qi ZD, Saito T, Isogai A. Nanofibrillar Chitin Aerogels as Renewable Base Catalysts. Biomacromolecules 2014; 15:4314-9. [DOI: 10.1021/bm501320b] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yoshiyuki Tsutsumi
- Department
of Biomaterials Science, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hirotaka Koga
- Department
of Biomaterials Science, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki Osaka, 567−0047, Japan
| | - Zi-Dong Qi
- Department
of Biomaterials Science, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tsuguyuki Saito
- Department
of Biomaterials Science, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Akira Isogai
- Department
of Biomaterials Science, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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214
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Ding F, Deng H, Du Y, Shi X, Wang Q. Emerging chitin and chitosan nanofibrous materials for biomedical applications. NANOSCALE 2014; 6:9477-93. [PMID: 25000536 DOI: 10.1039/c4nr02814g] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Over the past several decades, we have witnessed significant progress in chitosan and chitin based nanostructured materials. The nanofibers from chitin and chitosan with appealing physical and biological features have attracted intense attention due to their excellent biological properties related to biodegradability, biocompatibility, antibacterial activity, low immunogenicity and wound healing capacity. Various methods, such as electrospinning, self-assembly, phase separation, mechanical treatment, printing, ultrasonication and chemical treatment were employed to prepare chitin and chitosan nanofibers. These nanofibrous materials have tremendous potential to be used as drug delivery systems, tissue engineering scaffolds, wound dressing materials, antimicrobial agents, and biosensors. This review article discusses the most recent progress in the preparation and application of chitin and chitosan based nanofibrous materials in biomedical fields.
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Affiliation(s)
- Fuyuan Ding
- School of Resource and Environmental Science and Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
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215
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Torres-Rendon JG, Schacher FH, Ifuku S, Walther A. Mechanical Performance of Macrofibers of Cellulose and Chitin Nanofibrils Aligned by Wet-Stretching: A Critical Comparison. Biomacromolecules 2014; 15:2709-17. [DOI: 10.1021/bm500566m] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Felix H. Schacher
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Jena Center for Soft
Matter (JCSM), Friedrich-Schiller-University Jena, Lessingstr. 8, D-07743 Jena, Germany
| | - Shinsuke Ifuku
- Graduate
School of Engineering, Tottori University, 101-4 Koyama-cho Minami, Tottori, 680-8502, Japan
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216
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Rolandi M, Rolandi R. Self-assembled chitin nanofibers and applications. Adv Colloid Interface Sci 2014; 207:216-22. [PMID: 24556234 DOI: 10.1016/j.cis.2014.01.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 01/23/2014] [Accepted: 01/24/2014] [Indexed: 12/22/2022]
Abstract
Self-assembled natural biomaterials offer a variety of ready-made nanostructures available for basic science research and technological applications. Most natural structural materials are made of self-assembled nanofibers with diameters in the nanometer range. Among these materials, chitin is the second most abundant polysaccharide after cellulose and is part of the exoskeleton or arthropods and mollusk shells. Chitin has several desirable properties as a biomaterial including mechanical strength, chemical and thermal stability, and biocompatibility. However, chitin insolubility in most organic solvents has somewhat limited its use. In this research highlight, we describe recent developments in producing biogenic chitin nanofibers using self-assembly from a solution of squid pen β-chitin in hexafluoroisopropanol. With this solution based assembly, we have demonstrated chitin-silk composite self-assembly, chitin nanofiber fabrication across length-scales, and manufacturing of chitin nanofiber substrates for tissue engineering.
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217
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Itoh T, Sugimoto I, Hibi T, Suzuki F, Matsuo K, Fujii Y, Taketo A, Kimoto H. Overexpression, purification, and characterization of Paenibacillus cell surface-expressed chitinase ChiW with two catalytic domains. Biosci Biotechnol Biochem 2014; 78:624-34. [DOI: 10.1080/09168451.2014.891935] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Abstract
Paenibacillus sp. strain FPU-7 produces several different chitinases and effectively hydrolyzes robust chitin. Among the P. FPU-7 chitinases, ChiW, a novel monomeric chitinase with a molecular mass of 150 kDa, is expressed as a cell surface molecule. Here, we report that active ChiW lacking the anchoring domains in the N-terminus was successfully overproduced in Escherichia coli and purified to homogeneity. The two catalytic domains at the C-terminal region were classified as typical glycoside hydrolase family 18 chitinases, whereas the N-terminal region showed no sequence similarity to other known proteins. The vacuum-ultraviolet circular dichroism spectrum of the enzyme strongly suggested the presence of a β-stranded-rich structure in the N-terminus. Its biochemical properties were also characterized. Various insoluble chitins were hydrolyzed to N,N’-diacetyl-D-chitobiose as the final product. Based on amino acid sequence similarities and site-directed mutagenesis, Glu691 and Glu1177 in the two GH-18 domains were identified as catalytic residues.
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Affiliation(s)
- Takafumi Itoh
- Department of Bioscience, Fukui Prefectural University, Fukui, Japan
| | - Ikumi Sugimoto
- Department of Bioscience, Fukui Prefectural University, Fukui, Japan
| | - Takao Hibi
- Department of Bioscience, Fukui Prefectural University, Fukui, Japan
| | - Fumiko Suzuki
- Department of Bioscience, Fukui Prefectural University, Fukui, Japan
| | - Koichi Matsuo
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - Yutaka Fujii
- Faculty of Medicine, Department of Molecular Biology and Chemistry, University of Fukui, Fukui, Japan
| | - Akira Taketo
- Department of Environmental and Biotechnological Frontier Engineering, Fukui University of Technology, Fukui, Japan
| | - Hisashi Kimoto
- Department of Bioscience, Fukui Prefectural University, Fukui, Japan
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218
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Kaya M, Seyyar O, Baran T, Erdoğan S, Kar M. A physicochemical characterization of fully acetylated chitin structure isolated from two spider species: With new surface morphology. Int J Biol Macromol 2014; 65:553-8. [DOI: 10.1016/j.ijbiomac.2014.02.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 01/27/2014] [Accepted: 02/07/2014] [Indexed: 10/25/2022]
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219
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Ifuku S, Suzuki N, Izawa H, Morimoto M, Saimoto H. Surface phthaloylation of chitin nanofiber in aqueous media to improve dispersibility in aromatic solvents and give thermo-responsive and ultraviolet protection properties. RSC Adv 2014. [DOI: 10.1039/c4ra01975j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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220
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Lin N, Wei S, Xia T, Hu F, Huang J, Dufresne A. Green bionanocomposites from high-elasticity “soft” polyurethane and high-crystallinity “rigid” chitin nanocrystals with controlled surface acetylation. RSC Adv 2014. [DOI: 10.1039/c4ra07899c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel elastomeric nanocomposites from “rigid” partially-acetylated chitin nanocrystals and “soft” high-elasticity polyurethane.
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Affiliation(s)
- Ning Lin
- Department of Chemical Engineering
- College of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070, China
| | - Siwen Wei
- College of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, China
| | - Tao Xia
- Department of Chemical Engineering
- College of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070, China
| | - Fei Hu
- Department of Chemical Engineering
- College of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070, China
| | - Jin Huang
- Department of Chemical Engineering
- College of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070, China
| | - Alain Dufresne
- Grenoble Institute of Technology (Grenoble INP) – The International School of Paper
- Print Media and Biomaterials (Pagora)
- , France
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221
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Control of mechanical properties of chitin nanofiber film using glycerol without losing its characteristics. Carbohydr Polym 2014; 101:714-7. [DOI: 10.1016/j.carbpol.2013.09.076] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/18/2013] [Accepted: 09/21/2013] [Indexed: 11/21/2022]
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222
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Hassanzadeh P, Sun W, de Silva JP, Jin J, Makhnejia K, Cross GLW, Rolandi M. Mechanical properties of self-assembled chitin nanofiber networks. J Mater Chem B 2014; 2:2461-2466. [DOI: 10.1039/c3tb21550d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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223
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Ifuku S, Maeta H, Izawa H, Morimoto M, Saimoto H. Facile preparation of aramid nanofibers from Twaron fibers by a downsizing process. RSC Adv 2014. [DOI: 10.1039/c4ra06924b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We introduce a simple preparation procedure for aramid nanofibers from Twaron fibers by using a downsizing process.
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Affiliation(s)
- S. Ifuku
- Department of Chemistry and Biotechnology
- Tottori University
- Tottori 680-8552, Japan
| | - H. Maeta
- Department of Chemistry and Biotechnology
- Tottori University
- Tottori 680-8552, Japan
| | - H. Izawa
- Department of Chemistry and Biotechnology
- Tottori University
- Tottori 680-8552, Japan
| | - M. Morimoto
- Department of Chemistry and Biotechnology
- Tottori University
- Tottori 680-8552, Japan
| | - H. Saimoto
- Department of Chemistry and Biotechnology
- Tottori University
- Tottori 680-8552, Japan
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224
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Malho JM, Heinonen H, Kontro I, Mushi NE, Serimaa R, Hentze HP, Linder MB, Szilvay GR. Formation of ceramophilic chitin and biohybrid materials enabled by a genetically engineered bifunctional protein. Chem Commun (Camb) 2014; 50:7348-51. [DOI: 10.1039/c4cc02170c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An engineered bifunctional protein from an oyster shell protein and a chitin-binding domain enables the formation of mineralized biohybrid materials.
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Affiliation(s)
| | | | - Inkeri Kontro
- University of Helsinki
- Department of Physics
- , Finland
| | - Ngesa E. Mushi
- Royal Institute of Technology
- Fibre and Polymer Technology
- SE-100 44 Stockholm, Sweden
| | - Ritva Serimaa
- University of Helsinki
- Department of Physics
- , Finland
| | | | - Markus B. Linder
- VTT Technical Research Centre of Finland
- , Finland
- Aalto University
- Department of Biotechnology and Chemical Technology
- 00076 Aalto, Finland
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225
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Nishihira T, Miyano A, Ohnuma T, Gotoh T, Takahashi S, Narihiro K, Yamashita K, Fukamizo T. A Simple Turbidimetric Assay Using Chitin Nanofibers as the Substrate for Determinination of Chitinase Activity. J Appl Glycosci (1999) 2014. [DOI: 10.5458/jag.jag.jag-2014_005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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226
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Isaksen T, Westereng B, Aachmann FL, Agger JW, Kracher D, Kittl R, Ludwig R, Haltrich D, Eijsink VGH, Horn SJ. A C4-oxidizing lytic polysaccharide monooxygenase cleaving both cellulose and cello-oligosaccharides. J Biol Chem 2013; 289:2632-42. [PMID: 24324265 DOI: 10.1074/jbc.m113.530196] [Citation(s) in RCA: 242] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lignocellulosic biomass is a renewable resource that significantly can substitute fossil resources for the production of fuels, chemicals, and materials. Efficient saccharification of this biomass to fermentable sugars will be a key technology in future biorefineries. Traditionally, saccharification was thought to be accomplished by mixtures of hydrolytic enzymes. However, recently it has been shown that lytic polysaccharide monooxygenases (LPMOs) contribute to this process by catalyzing oxidative cleavage of insoluble polysaccharides utilizing a mechanism involving molecular oxygen and an electron donor. These enzymes thus represent novel tools for the saccharification of plant biomass. Most characterized LPMOs, including all reported bacterial LPMOs, form aldonic acids, i.e., products oxidized in the C1 position of the terminal sugar. Oxidation at other positions has been observed, and there has been some debate concerning the nature of this position (C4 or C6). In this study, we have characterized an LPMO from Neurospora crassa (NcLPMO9C; also known as NCU02916 and NcGH61-3). Remarkably, and in contrast to all previously characterized LPMOs, which are active only on polysaccharides, NcLPMO9C is able to cleave soluble cello-oligosaccharides as short as a tetramer, a property that allowed detailed product analysis. Using mass spectrometry and NMR, we show that the cello-oligosaccharide products released by this enzyme contain a C4 gemdiol/keto group at the nonreducing end.
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Affiliation(s)
- Trine Isaksen
- From the Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, N-1432 Ås, Norway
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227
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Benítez AJ, Torres-Rendon J, Poutanen M, Walther A. Humidity and Multiscale Structure Govern Mechanical Properties and Deformation Modes in Films of Native Cellulose Nanofibrils. Biomacromolecules 2013; 14:4497-506. [DOI: 10.1021/bm401451m] [Citation(s) in RCA: 185] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alejandro J. Benítez
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Jose Torres-Rendon
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Mikko Poutanen
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Andreas Walther
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, Forckenbeckstr. 50, D-52056 Aachen, Germany
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228
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Ezekiel Mushi N, Butchosa N, Zhou Q, Berglund LA. Nanopaper membranes from chitin–protein composite nanofibers—structure and mechanical properties. J Appl Polym Sci 2013. [DOI: 10.1002/app.40121] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Ngesa Ezekiel Mushi
- Department of Fiber and Polymer TechnologyRoyal Institute of TechnologyStockholmSE‐100 44 Sweden
| | - Nuria Butchosa
- Department of Fiber and Polymer TechnologyRoyal Institute of TechnologyStockholmSE‐100 44 Sweden
| | - Qi Zhou
- School of Biotechnology, Royal Institute of TechnologyAlbaNova University CentreStockholmSE‐106 91 Sweden
- Wallenberg Wood Science CenterRoyal Institute of TechnologyStockholmSE‐100 44 Sweden
| | - Lars A Berglund
- Department of Fiber and Polymer TechnologyRoyal Institute of TechnologyStockholmSE‐100 44 Sweden
- Wallenberg Wood Science CenterRoyal Institute of TechnologyStockholmSE‐100 44 Sweden
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229
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Ito I, Osaki T, Ifuku S, Saimoto H, Takamori Y, Kurozumi S, Imagawa T, Azuma K, Tsuka T, Okamoto Y, Minami S. Evaluation of the effects of chitin nanofibrils on skin function using skin models. Carbohydr Polym 2013; 101:464-70. [PMID: 24299799 DOI: 10.1016/j.carbpol.2013.09.074] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/20/2013] [Accepted: 09/21/2013] [Indexed: 01/15/2023]
Abstract
Chitins are highly crystalline structures that are predominantly found in crustacean shells. Alpha-chitin is composed of microfibers, which are made up of nanofibrils that are 2-5 nm in diameter and 30 nm in length and embedded in a protein matrix. Crystalline nanofibrils can also be prepared by acid treatment. We verified the effect of chitin nanofibrils (NF) and nanocrystals (NC) on skin using a three-dimensional skin culture model and Franz cells. The application of NF and NC to skin improved the epithelial granular layer and increased granular density. Furthermore, NF and NC application to the skin resulted in a lower production of TGF-β compared to that of the control group. NF and NC might have protective effects to skin. Therefore, their potential use as components of skin-protective formulations merits consideration.
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Affiliation(s)
- Ikuko Ito
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan.
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230
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Duan B, Chang C, Zhang L. Structure and properties of films fabricated from chitin solution by coagulating with heating. J Appl Polym Sci 2013. [DOI: 10.1002/app.39538] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Bo Duan
- Department of Chemistry; Wuhan University; Wuhan 430072 China
| | - Chunyu Chang
- Department of Chemistry; Wuhan University; Wuhan 430072 China
- Guangzhou Sugarcane Industry Research Institute; Guangzhou 510316 China
| | - Lina Zhang
- Department of Chemistry; Wuhan University; Wuhan 430072 China
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231
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Preparation of highly flexible chitin nanofiber-graft-poly(γ-l-glutamic acid) network film. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-1020-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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232
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Lu Y, Sun Q, She X, Xia Y, Liu Y, Li J, Yang D. Fabrication and characterisation of α-chitin nanofibers and highly transparent chitin films by pulsed ultrasonication. Carbohydr Polym 2013; 98:1497-504. [PMID: 24053832 DOI: 10.1016/j.carbpol.2013.07.038] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 07/14/2013] [Accepted: 07/16/2013] [Indexed: 11/28/2022]
Abstract
α-Chitin nanofibers were fabricated with dried shrimp shells via a simple high-intensity ultrasonic treatment under neutral conditions (60 KHz, 300 W, pH=7). The diameter of the obtained chitin nanofibers could be controlled within 20-200 nm by simply adjusting the ultrasonication time. The pulsed ultrasound disassembled natural chitin into high-aspect-ratio nanofibers with a uniform width (19.4 nm after 30 min sonication). The EDS, FTIR, and XRD characterisation results verified that α-chitin crystalline structure and molecular structure were maintained after the chemical purification and ultrasonic treatments. Interestingly, ultrasonication can slightly increase the degree of crystallinity of chitin (from 60.1 to 65.8). Furthermore, highly transparent chitin films (the transmittance was 90.2% at a 600 nm) and flexible ultralight chitin foams were prepared from chitin nanofiber hydrogels.
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Affiliation(s)
- Yun Lu
- Material Science and Engineering College, Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
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233
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Ifuku S, Ikuta A, Egusa M, Kaminaka H, Izawa H, Morimoto M, Saimoto H. Preparation of high-strength transparent chitosan film reinforced with surface-deacetylated chitin nanofibers. Carbohydr Polym 2013; 98:1198-202. [PMID: 23987464 DOI: 10.1016/j.carbpol.2013.07.033] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 07/03/2013] [Accepted: 07/12/2013] [Indexed: 10/26/2022]
Abstract
Surface-deacetylated chitin nanofiber reinforced chitosan films were prepared. The nano-composite films were highly transparent of approximately 84% at 600 nm due to the nanometer-sized fillers and chitosan matrix, which were embedded in the cavities and on the rough surface of the nanofiber networks. Due to the extended crystalline structure, the nanofibers worked effectively as reinforcement filler to improve the Young's modulus and the tensile strength of the chitosan film. After 10% blending of nanofiber, these properties were increased by 65% and 94%, respectively. Moreover, thermal expansion was also significantly decreased from 35.3 to 26.1 ppm K(-1) after 10% addition of nanofibers. Surface-deacetylated chitin nanofiber and the nano-composite films showed antifungal activity against A. alternata.
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Affiliation(s)
- Shinsuke Ifuku
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
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234
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Simple preparation of chitosan nanofibers from dry chitosan powder by the Star Burst system. Carbohydr Polym 2013; 97:363-7. [PMID: 23911458 DOI: 10.1016/j.carbpol.2013.05.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 04/30/2013] [Accepted: 05/07/2013] [Indexed: 11/20/2022]
Abstract
Chitosan nanofibers were easily prepared from dry chitosan powder using the Star Burst system, which employs a high-pressure water jet system. Although the chitosan nanofibers became thinner as the number of Star Burst passes increased, the fiber thickness did not change significantly above 10 passes. Crystallinity and the chitosan nanofiber length decreased after extensive treatment due to the strong collision forces breaking the fibers. The mechanical properties and thermal expansion of the chitosan nanofiber sheets were improved by increasing the number of passes up to 10, but further treatment resulted in a deterioration of these properties.
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235
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Sim K, Ryu J, Youn HJ. Effect of the Number of Passes through Grinder on the Pore Characteristics of Nanofibrillated Cellulose Mat. ACTA ACUST UNITED AC 2013. [DOI: 10.7584/ktappi.2013.45.1.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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236
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Kadokawa JI. Ionic Liquid as Useful Media for Dissolution, Derivatization, and Nanomaterial Processing of Chitin. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/gsc.2013.32a003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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237
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Qi ZD, Fan Y, Saito T, Fukuzumi H, Tsutsumi Y, Isogai A. Improvement of nanofibrillation efficiency of α-chitin in water by selecting acid used for surface cationisation. RSC Adv 2013. [DOI: 10.1039/c2ra22271j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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238
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Schleuter D, Günther A, Paasch S, Ehrlich H, Kljajić Z, Hanke T, Bernhard G, Brunner E. Chitin-based renewable materials from marine sponges for uranium adsorption. Carbohydr Polym 2013; 92:712-8. [DOI: 10.1016/j.carbpol.2012.08.090] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 08/17/2012] [Accepted: 08/17/2012] [Indexed: 11/29/2022]
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