Tuning the formation and stability of microcapsules by environmental conditions and chitosan structure
文献类型：期刊论文
| 作者 | Xie, Hongguo2; Ren, Ying2,3; Liu, Xiaocen2,3; Yang, Fan1; Yu, Weiting2; Ma, Xiaojun2 |
| 刊名 | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 91页码:1090-1100 |
| 关键词 | Alginate Chitosan Microcapsules |
| ISSN号 | 0141-8130 |
| DOI | 10.1016/j.ijbiomac.2016.06.034 |
| 文献子类 | Article |
| 英文摘要 | The goal of this work is to tune the formation and stability of the alginate-chitosan (AC) polyelectrolyte complexes (PECs) and microcapsules. Particularly, we explore the role of the conformation of chitosan on its interaction with alginate to understand the mechanism underpinning their interactions at the molecular level. Reducing the charge density by increasing pH will increase the compactness of chitosan, the values of the enthalpy (H) and stoichiometry (N) of binding between chitosan and alginate. Consequently, chitosan has advantage in being adsorbed on alginate beads to form microcapsules, including the binding rate and binding amount. Though the total heat release remain similar in the range of ionic strength, chitosan diffuses much easier into alginate hydrogels when in higher ionic strength. Increasing pH and ionic strength both help AC microcapsules to have higher stability. The results indicate that the formation and stability of AC microcapsules are related to the rigidity and conformations of chitosan molecules. After increasing acetylation degree (DA) of chitosan, the binding rate of chitosan and mechanical strength of AC microcapsules are both reduced. This work demonstrates the versatility and feasibility of tuning the formation and stability of polysaccharide microcapsules by physical factors and chitosan chemical structures. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | POLYELECTROLYTE COMPLEXES ; ALGINATE-CHITOSAN ; AQUEOUS-SOLUTION ; IONIC-STRENGTH ; BINDING ; PH ; POLYSACCHARIDES ; THERMODYNAMICS ; BIOMATERIALS ; BIOPOLYMERS |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000382339200128 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170250]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Xie, Hongguo; Yu, Weiting |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Energy Res Resources Div, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Biomed Mat Engn, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Hongguo,Ren, Ying,Liu, Xiaocen,et al. Tuning the formation and stability of microcapsules by environmental conditions and chitosan structure[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2016,91:1090-1100. |
| APA | Xie, Hongguo,Ren, Ying,Liu, Xiaocen,Yang, Fan,Yu, Weiting,&Ma, Xiaojun.(2016).Tuning the formation and stability of microcapsules by environmental conditions and chitosan structure.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,91,1090-1100. |
| MLA | Xie, Hongguo,et al."Tuning the formation and stability of microcapsules by environmental conditions and chitosan structure".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 91(2016):1090-1100. |
入库方式： OAI收割
来源：大连化学物理研究所
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