M. Onda et al., SEQUENTIAL ACTIONS OF GLUCOSE-OXIDASE AND PEROXIDASE IN MOLECULAR FILMS ASSEMBLED BY LAYER-BY-LAYER ALTERNATE ADSORPTION, Biotechnology and bioengineering, 51(2), 1996, pp. 163-167
Molecular films of protein/polyion layers were assembled by means of a
lternate adsorption through electrostatic interaction. Glucose oxidase
(GOD)and peroxidase (POD) were assembled in combination with sodium p
oly(styrenesulfonate) (PSS) and poly(ethyleneimine) (PEI), respectivel
y. Enzyme activities of those films on specific substrates (glucose an
d H2O2) were examined by coloring reaction of dye DA67. A multienzyme
film containing GOD layer and POD layer was prepared by alternate adso
rption of POD/PSS followed by PEI/GOD. Sequential redox reaction of gl
ucose/H2O2/DA67 was demonstrated successfully with this supramolecular
system. (C) 1996 John Wiley & Sons, Inc.