Encapsulation of proteins by layer-by-layer adsorption of polyelectrolytes onto protein aggregates: Factors regulating the protein release

被引:115
作者
Balabushevitch, NG
Sukhorukov, GB [1 ]
Moroz, NA
Volodkin, DV
Larionova, NI
Donath, E
Mohwald, H
机构
[1] Max Planck Inst Colloids & Interfaces, D-14476 Golm, Germany
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia
[3] Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia
关键词
protein encapsulation; polyelectrolytes; ultrathin organic films; protein aggregates; microcapsules; colloid; protein release;
D O I
10.1002/bit.1184
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
A novel method of protein encapsulation is proposed. Preformed protein aggregates are covered with polyelectrolyte layers by means of layer-by-layer adsorption. The polyelectrolyte membrane prevents protein leakage out of the capsule. Using chymotrypsin as a model enzyme the capsule wall selective permeability was demonstrated for substrates and inhibitors of different molecular weight and solubility. (C) 2001 John Wiley & Sons, Inc.
引用
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页码:207 / 213
页数:7
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