PMID: 9170249Feb 1, 1997Paper

Immobilization of glucose oxidase with the blend of regenerated silk fibroin and poly(vinyl alcohol) and its application to a 1,1'-dimethylferrocene-mediating glucose sensor

Applied Biochemistry and Biotechnology
Y LiuT Yu

Abstract

The structure and properties of the blend of regenerated silk fibroin (RSF) and poly(vinyl alcohol) (PVA) were investigated. The two polymers in the blend are in the state of phase segregation. Infrared (IR) spectra indicate that the RSF in the blend maintains its intrinsic properties, thus, ethanol treatment can transfer silk I structure of RSF to silk II structure. The water absorption property and mechanical property of the blend are improved in comparison with those of RSF. The blend maintains the major merit of RSF, that is, it can immobilize glucose oxidase on the basis of the conformational transition from silk I structure to silk II structure. The properties of the immobilized enzyme are examined. Moreover, the second generation of glucose sensor based on the immobilized enzyme is fabricated and it has a variety of advantages including easy maintenance of enzyme, simplicity of construction, fast response time and high stability.

Citations

Oct 5, 2010·Journal of Fluorescence·Jieli TangYihua Zhang
Mar 28, 2009·Biomacromolecules·Shenzhou LuDavid L Kaplan
Nov 1, 2010·Human Factors and Ergonomics in Manufacturing·Tammy W Tam, Thomas K Greenfield
Jan 5, 2001·Alcoholism, Clinical and Experimental Research·D A Dawson
Mar 28, 2012·Bioscience, Biotechnology, and Biochemistry·Yasuhira IkegawaTomoaki Taira

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