H. Biederman et al., Characterization of glow-discharge-treated cellulose acetate membrane surfaces for single-layer enzyme electrode studies, J APPL POLY, 81(6), 2001, pp. 1341-1352
Cellulose acetate membranes (CA) were modified by means of plasma polymeriz
ation of ethylene diamine (EDA) and n-butylamine (n-BA). The motivation for
this work was the application of a modified membrane for the single-layer
enzyme electrode. A tubular reactor with the external radiofrequency (13.56
MHz) excitation was used. Surface modification was performed at 5, 10, and
15 W power (at 27 Pa working pressure) for 5, 10, 15 min. Modified surface
s were characterized in detail by FTIR-ATR, XPS (ESCA), contact angle, and
enzyme immobilization activity. The best treatment results were obtained fo
r EDA with 5 W and 30 min and 15 W and 10 min. These results are discussed
using surface analysis data. (C) 2001 John Wiley & Sons, Inc.