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题名: Characterization of structure and diffusion behaviour of Ca-alginate beads prepared with external or internal calcium sources
作者: Liu, XD;  Yu, WY;  Zhang, Y;  Xue, WM;  Tu, WT;  Xiong, Y;  Ma, XJ;  Chen, Y;  Yuan, Q
关键词: Ca-alginate bead ;  microcapsules ;  diffusion behaviour ;  external gelation ;  internal gelation
刊名: JOURNAL OF MICROENCAPSULATION
发表日期: 2002-11-01
DOI: 10.1080/0265204021000022743
卷: 19, 期:6, 页:775-782
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Applied ;  Engineering, Chemical ;  Pharmacology & Pharmacy
研究领域[WOS]: Chemistry ;  Engineering ;  Pharmacology & Pharmacy
英文摘要: Ca-alginate beads were prepared with either external or internal calcium sources. The structures of both beads were investigated with the aid of scanning electron microscopy (SEM) and confocal microscopy. It was shown that the beads with internal calcium source had a looser structure and bigger pore size than those with external calcium source. The attempts to interpret the difference were carried out by determining the Ca content within the beads at various times, which indicated that it was the different gelation mechanisms that caused the difference of structures of both beads. Furthermore, it was also found that the diffusion rate of haemoglobin (Hb) within the beads with an internal calcium source was faster than that of the beads with an external one, which was consistent with the observation of their structures.
关键词[WOS]: PROTEIN RELEASE ;  GELATION ;  DELIVERY ;  MICROPARTICLES ;  ENCAPSULATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000180630400007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/84131
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Biomed Mat Engn, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem, Dalian 116012, Peoples R China

Recommended Citation:
Liu, XD,Yu, WY,Zhang, Y,et al. Characterization of structure and diffusion behaviour of Ca-alginate beads prepared with external or internal calcium sources[J]. JOURNAL OF MICROENCAPSULATION,2002,19(6):775-782.
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