Enzyme-catalyzed polymerization of phenols within polyelectrolyte microcapsules

被引：61

作者：

Ghan, R

Shutava, T

Patel, A

John, VT

Lvov, Y ^{[1
]}

机构：

[1] Louisiana Tech Univ, Inst Micromfg, Ruston, LA 71270 USA

[2] Louisiana Tech Univ, Chem Program, Ruston, LA 71270 USA

[3] Tulane Univ, Dept Chem Engn, New Orleans, LA 70118 USA

来源：

MACROMOLECULES | 2004年 / 37卷 / 12期

关键词：

D O I：

10.1021/ma035896h

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Enzyme-catalyzed synthesis of a phenolic polymer within layer-by-layer (LbL) constructed polyelectrolyte microcapsules has been introduced. This approach is based on selective permeability of capsule walls for monomer molecules, while biocatalyst and forming polymeric chains cannot leave capsules interior because of high molecular weight. Horseradish peroxidase was encapsulated into four bilayer poly(styrenesulfonate)/poly(allylamine hydrochloride) capsules with an average diameter of 5 pm using pH-driven pore opening. 4-(2-Aminoethyl)phenol hydrochloride (tyramine) was used as a monomer giving easily detectable fluorescent polymeric products after addition of hydrogen peroxide into the system. Filling of the capsules with polymer was confirmed by different methods (AFM, quartz crystal microbalance, and confocal microscopy).

引用

页码：4519 / 4524

页数：6

共 43 条

[1] Enzymatic synthesis and characterization of a novel water-soluble polyaniline: Poly(2,5-diaminobenzenesulfonate) [J].