51
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Kumar JN, Pang VYT, Aik SXL. Calcium triggered self-assembly of alginate-graft-POEGMA via RAFT for the encapsulation of lipophillic actives. J Mater Chem B 2017; 5:8254-8263. [DOI: 10.1039/c7tb01670k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Self-assembly of alginate into nanoparticles was realized by grafting hydrophilic brushes via RAFT.
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Affiliation(s)
- Jatin N. Kumar
- Institute of Materials Research & Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 138634
- Singapore
| | - Victoria Y. T. Pang
- Institute of Materials Research & Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 138634
- Singapore
| | - Shalen X. L. Aik
- Institute of Materials Research & Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 138634
- Singapore
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52
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Yang L, Guo J, Wu J, Yang Y, Zhang S, Song J, An Q, Gong Y. Preparation and properties of a thin membrane based on sodium alginate grafting acrylonitrile. RSC Adv 2017. [DOI: 10.1039/c7ra08532j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sodium alginate was modified for water resistance with acrylonitrile via by free radical graft copolymerization.
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Affiliation(s)
- Lijun Yang
- Dalian Ploytechnic University
- P. R. China
| | - Jing Guo
- Dalian Ploytechnic University
- P. R. China
- Liaoning Engineering Technology Research Center of Function Fiber and its Composites
- Dalian Ploytechnic University
- Dalian 116034
| | - Jing Wu
- Dalian Ploytechnic University
- P. R. China
| | | | - Sen Zhang
- Dalian Ploytechnic University
- P. R. China
| | | | - Qingda An
- Dalian Ploytechnic University
- P. R. China
| | - Yumei Gong
- Dalian Ploytechnic University
- P. R. China
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53
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Cho H, Huang X, Lan Piao Y, Eun Kim D, Yeon Lee S, Jeong Yoon E, Hee Park S, Lee K, Ho Jang C, Zhan CG. Molecular modeling and redesign of alginate lyase from Pseudomonas aeruginosa for accelerating CRPA biofilm degradation. Proteins 2016; 84:1875-1887. [PMID: 27676452 DOI: 10.1002/prot.25171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/31/2016] [Accepted: 09/16/2016] [Indexed: 11/12/2022]
Abstract
Administration of an efficient alginate lyase (AlgL) or AlgL mutant may be a promising therapeutic strategy for treatment of cystic fibrosis patients with Pseudomonas aeruginosa infections. Nevertheless, the catalytic activity of wild-type AlgL is not sufficiently high. It is highly desired to design and discover an AlgL mutant with significantly improved catalytic efficiency against alginate substrates. For the purpose of identifying an AlgL mutant with significantly improved catalytic activity, in this study, we first constructed and validated a structural model of AlgL interacting with substrate, providing a better understanding of the interactions between AlgL and its substrate. Based on the modeling insights, further enzyme redesign and experimental testing led to discovery of AlgL mutants, including the K197D/K321A mutant, with significantly improved catalytic activities against alginate and acetylated alginate in ciprofloxacin-resistant P. aeruginosa (CRPA) biofilms. Further anti-biofilm activity assays have confirmed that the K197D/K321A mutant with piperacillin/tazobactam is indeed effective in degrading the CRPA biofilms. Co-administration of the potent mutant AlgL and an antibiotic (such as a nebulizer) could be effective for therapeutic treatment of CRPA-infected patients with cystic fibrosis. Proteins 2016; 84:1875-1887. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Hoon Cho
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Xiaoqin Huang
- Molecular Modeling and Biopharmaceutical Center, Center of Pharmaceutical Research and Innovation, and Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky
| | - Yu Lan Piao
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Da Eun Kim
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - So Yeon Lee
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Eun Jeong Yoon
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - So Hee Park
- Department of Polymer Science & Engineering, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Kyoung Lee
- Department of Microbiology, Changwon National University, Changwon, Kyongnam, 641-773, Republic of Korea
| | - Chul Ho Jang
- Department of Otolaryngology, Chonnam National University Medical School, Gwangju, 501-757, Republic of Korea
| | - Chang-Guo Zhan
- Molecular Modeling and Biopharmaceutical Center, Center of Pharmaceutical Research and Innovation, and Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky
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54
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Daemi H, Rajabi-Zeleti S, Sardon H, Barikani M, Khademhosseini A, Baharvand H. A robust super-tough biodegradable elastomer engineered by supramolecular ionic interactions. Biomaterials 2016; 84:54-63. [DOI: 10.1016/j.biomaterials.2016.01.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/07/2016] [Accepted: 01/07/2016] [Indexed: 02/04/2023]
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55
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Albertin L. Protecting-Group-Free Synthesis of Well-Defined Glycopolymers Featuring Negatively Charged Oligosaccharides. Methods Mol Biol 2016; 1367:13-28. [PMID: 26537461 DOI: 10.1007/978-1-4939-3130-9_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Control of the macromolecular architecture is essential to enable sophisticated functions for glycopolymers and to allow a precise correlation between these functions and the polymer structure. A number of biologically important ligands are negatively charged oligosaccharides that are difficult to manipulate in organic solvent and that are hardly amenable to protection/deprotection strategies. RAFT polymerization is a simple and robust technique that enables the synthesis of well-defined glycopolymers directly in aqueous solution and starting from unprotected vinyl glycomonomers. Here I describe how RAFT polymerization can be combined with reductive amination to transform negatively charged oligosaccharides having 5-20 monosaccharide units into well-defined glycopolymers directly in water and without the need to resort to protecting-group chemistry.
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Affiliation(s)
- Luca Albertin
- Laboratoire de Chimie et Biologie des Métaux, UMR 5249-Université Grenoble Alpes, CEA, CNRS, 17 rue des Martyrs, 38054, Grenoble, France.
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56
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Meng X, Roy Choudhury S, Edgar KJ. Multifunctional cellulose esters by olefin cross-metathesis and thiol-Michael addition. Polym Chem 2016. [DOI: 10.1039/c6py00539j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Post-cross-metathesis thiol-Michael addition affords functionally diverse cellulose esters.
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Affiliation(s)
- Xiangtao Meng
- Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
- Department of Sustainable Biomaterials
| | | | - Kevin J. Edgar
- Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
- Department of Sustainable Biomaterials
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57
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Miao T, Fenn SL, Charron PN, Oldinski RA. Self-Healing and Thermoresponsive Dual-Cross-Linked Alginate Hydrogels Based on Supramolecular Inclusion Complexes. Biomacromolecules 2015; 16:3740-50. [PMID: 26509214 PMCID: PMC4679680 DOI: 10.1021/acs.biomac.5b00940] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
β-Cyclodextrin (β-CD), with a lipophilic inner cavity and hydrophilic outer surface, interacts with a large variety of nonpolar guest molecules to form noncovalent inclusion complexes. Conjugation of β-CD onto biomacromolecules can form physically cross-linked hydrogel networks upon mixing with a guest molecule. Herein, the development and characterization of self-healing, thermoresponsive hydrogels, based on host-guest inclusion complexes between alginate-graft-β-CD and Pluronic F108 (poly(ethylene glycol)-b-poly(propylene glycol)-b-poly(ethylene glycol)), are described. The mechanics, flow characteristics, and thermal response were contingent on the polymer concentration and the host-guest molar ratio. Transient and reversible physical cross-linking between host and guest polymers governed self-assembly, allowing flow to occur under shear stress and facilitating complete recovery of the material's properties within a few seconds of unloading. The mechanical properties of the dual-cross-linked, multi-stimuli-responsive hydrogels were tuned as high as 30 kPa at body temperature and are advantageous for biomedical applications such as drug delivery and cell transplantation.
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Affiliation(s)
- Tianxin Miao
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Spencer L. Fenn
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Patrick N. Charron
- Mechanical Engineering Program, College of Engineering and Mathematical Science, University of Vermont, Burlington, VT 05405, USA
| | - Rachael A. Oldinski
- Bioengineering Program, College of Engineering and Mathematical Science, College of Medicine, University of Vermont, Burlington, VT 05405, USA
- Mechanical Engineering Program, College of Engineering and Mathematical Science, University of Vermont, Burlington, VT 05405, USA
- Materials Science Program, College of Arts and Sciences, Department of Orthopaedics and Rehabilitation, College of Medicine, University of Vermont, Burlington, VT 05405, USA
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58
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Mucoadhesive vs. mucopenetrating particulate drug delivery. Eur J Pharm Biopharm 2015; 98:76-89. [PMID: 26598207 DOI: 10.1016/j.ejpb.2015.11.003] [Citation(s) in RCA: 193] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/22/2015] [Accepted: 11/09/2015] [Indexed: 02/04/2023]
Abstract
Mucus layer is a hydrophilic absorption barrier found in various regions of the body. The use of particulate delivery systems showed potential in drug delivery to mucosal membranes by either prolonging drug residence time at the absorption or target membrane or promoting permeation of particles across mucus gel layer to directly reach underlying epithelium. Mucoadhesive particles (MAP) are advantageous for delivering drug molecules to various mucosal membranes including eyes, oral cavity, bladder and vagina by prolonging drug residence time on those membranes. In contrast, a broader particle distribution and deeper penetration of the mucus gel layer are accomplished by mucopenetrating particles (MPP) especially in the gastrointestinal tract. Based on the available literature in particular dealing with in vivo results none of both systems (MAP and MPP) seems to be advantageous over the other. The choice of system primarily depends on the therapeutic target and peculiar properties of the target mucosa including thickness of the mucus gel layer, mucus turnover rate and water movement within the mucus. Future trends are heading in the direction of combining both systems to one i.e. mucoadhesive and mucopenetrating properties on the same particles.
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59
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Liu S, Edgar KJ. Staudinger Reactions for Selective Functionalization of Polysaccharides: A Review. Biomacromolecules 2015; 16:2556-71. [DOI: 10.1021/acs.biomac.5b00855] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Shu Liu
- Departments of †Chemistry, §Sustainable Biomaterials and the Macromolecules and Interfaces Institute, Virginia Tech, 230 Cheatham Hall, Blacksburg, Virginia 24061, United States
| | - Kevin J. Edgar
- Departments of †Chemistry, §Sustainable Biomaterials and the Macromolecules and Interfaces Institute, Virginia Tech, 230 Cheatham Hall, Blacksburg, Virginia 24061, United States
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60
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Gao N, Lu F, Xiao C, Yang L, Chen J, Zhou K, Wen D, Li Z, Wu M, Jiang J, Liu G, Zhao J. β-Eliminative depolymerization of the fucosylated chondroitin sulfate and anticoagulant activities of resulting fragments. Carbohydr Polym 2015; 127:427-37. [DOI: 10.1016/j.carbpol.2015.04.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 10/23/2022]
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61
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Kapishon V, Whitney RA, Champagne P, Cunningham MF, Neufeld RJ. Polymerization Induced Self-Assembly of Alginate Based Amphiphilic Graft Copolymers Synthesized by Single Electron Transfer Living Radical Polymerization. Biomacromolecules 2015; 16:2040-8. [DOI: 10.1021/acs.biomac.5b00470] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Vitaliy Kapishon
- Department of Chemical Engineering, ‡Department of Chemistry, and §Department of
Civil Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Ralph A. Whitney
- Department of Chemical Engineering, ‡Department of Chemistry, and §Department of
Civil Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Pascale Champagne
- Department of Chemical Engineering, ‡Department of Chemistry, and §Department of
Civil Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Michael F. Cunningham
- Department of Chemical Engineering, ‡Department of Chemistry, and §Department of
Civil Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Ronald J. Neufeld
- Department of Chemical Engineering, ‡Department of Chemistry, and §Department of
Civil Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
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62
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Venkatesan J, Bhatnagar I, Manivasagan P, Kang KH, Kim SK. Alginate composites for bone tissue engineering: A review. Int J Biol Macromol 2015; 72:269-81. [DOI: 10.1016/j.ijbiomac.2014.07.008] [Citation(s) in RCA: 417] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/26/2014] [Accepted: 07/04/2014] [Indexed: 12/20/2022]
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63
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Synthesis enhancements for generating highly soluble tetrabutylammonium alginates in organic solvents. Carbohydr Polym 2014; 114:493-499. [DOI: 10.1016/j.carbpol.2014.07.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/10/2014] [Accepted: 07/27/2014] [Indexed: 11/22/2022]
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64
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Mucoadhesive polymers in the design of nano-drug delivery systems for administration by non-parenteral routes: A review. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2014.07.010] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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65
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Daemi H, Barikani M. Molecular engineering of manipulated alginate-based polyurethanes. Carbohydr Polym 2014; 112:638-47. [DOI: 10.1016/j.carbpol.2014.06.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/07/2014] [Accepted: 06/03/2014] [Indexed: 12/20/2022]
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66
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Sosnik A. Alginate Particles as Platform for Drug Delivery by the Oral Route: State-of-the-Art. ISRN PHARMACEUTICS 2014; 2014:926157. [PMID: 25101184 PMCID: PMC4004034 DOI: 10.1155/2014/926157] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
Pharmaceutical research and development aims to design products with ensured safety, quality, and efficacy to treat disease. To make the process more rational, coherent, efficient, and cost-effective, the field of Pharmaceutical Materials Science has emerged as the systematic study of the physicochemical properties and behavior of materials of pharmaceutical interest in relation to product performance. The oral route is the most patient preferred for drug administration. The presence of a mucus layer that covers the entire gastrointestinal tract has been exploited to expand the use of the oral route by developing a mucoadhesive drug delivery system that showed a prolonged residence time. Alginic acid and sodium and potassium alginates have emerged as one of the most extensively explored mucoadhesive biomaterials owing to very good cytocompatibility and biocompatibility, biodegradation, sol-gel transition properties, and chemical versatility that make possible further modifications to tailor their properties. The present review overviews the most relevant applications of alginate microparticles and nanoparticles for drug administration by the oral route and discusses the perspectives of this biomaterial in the future.
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Affiliation(s)
- Alejandro Sosnik
- Group of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology De-Jur Building, Office 607, Technion City, 32000 Haifa, Israel
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67
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Pereira JM, Mahoney M, Edgar KJ. Synthesis of amphiphilic 6-carboxypullulan ethers. Carbohydr Polym 2014; 100:65-73. [DOI: 10.1016/j.carbpol.2012.12.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/11/2012] [Accepted: 12/14/2012] [Indexed: 10/27/2022]
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68
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Alginate esters via chemoselective carboxyl group modification. Carbohydr Polym 2013; 98:1288-96. [DOI: 10.1016/j.carbpol.2013.08.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 07/29/2013] [Accepted: 08/05/2013] [Indexed: 11/23/2022]
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69
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Chemical modification of polysaccharides. ISRN ORGANIC CHEMISTRY 2013; 2013:417672. [PMID: 24151557 PMCID: PMC3787328 DOI: 10.1155/2013/417672] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 06/09/2013] [Indexed: 11/18/2022]
Abstract
This review covers methods for modifying the structures of polysaccharides. The introduction of hydrophobic, acidic, basic, or other functionality into polysaccharide structures can alter the properties of materials based on these substances. The development of chemical methods to achieve this aim is an ongoing area of research that is expected to become more important as the emphasis on using renewable starting materials and sustainable processes increases in the future. The methods covered in this review include ester and ether formation using saccharide oxygen nucleophiles, including enzymatic reactions and aspects of regioselectivity; the introduction of heteroatomic nucleophiles into polysaccharide chains; the oxidation of polysaccharides, including oxidative glycol cleavage, chemical oxidation of primary alcohols to carboxylic acids, and enzymatic oxidation of primary alcohols to aldehydes; reactions of uronic-acid-based polysaccharides; nucleophilic reactions of the amines of chitosan; and the formation of unsaturated polysaccharide derivatives.
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70
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Ghadban A, Albertin L, Rinaudo M, Heyraud A. Biohybrid Glycopolymer Capable of Ionotropic Gelation. Biomacromolecules 2012; 13:3108-19. [DOI: 10.1021/bm300925j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ali Ghadban
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS; affiliated with Université Joseph Fourier and
member of the Institut de Chimie Moléculaire de Grenoble),
BP53, 38041 Grenoble, France
| | - Luca Albertin
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS; affiliated with Université Joseph Fourier and
member of the Institut de Chimie Moléculaire de Grenoble),
BP53, 38041 Grenoble, France
| | - Marguerite Rinaudo
- European Synchrotron Radiation Facility, BP 220, 6 Rue Jules Horowitz, 38043,
Grenoble, France
| | - Alain Heyraud
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS; affiliated with Université Joseph Fourier and
member of the Institut de Chimie Moléculaire de Grenoble),
BP53, 38041 Grenoble, France
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71
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Alginate derivatization: A review of chemistry, properties and applications. Biomaterials 2012; 33:3279-305. [DOI: 10.1016/j.biomaterials.2012.01.007] [Citation(s) in RCA: 983] [Impact Index Per Article: 81.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 01/04/2012] [Indexed: 12/14/2022]
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