Characterization of glow-discharge-treated cellulose acetate membrane surfaces for single-layer enzyme electrode studies

被引:28
作者
Biederman, Hynek [1 ]
Boyaci, Ismail H. [2 ]
Bilkova, Petra [1 ]
Slavinska, Danka [1 ]
Mutlu, Selma [3 ]
Zemek, Josef [4 ]
Trchova, Miroslava [1 ]
Klimovic, Josef [1 ]
Mutlu, Mehmet [2 ]
机构
[1] Department of Macromolecular Physics, Charles University, V Holesovickach 2, 18000 Praha 8, Czech Republic
[2] Department of Food Engineering, Hacettepe University, Ankara 06532, Turkey
[3] Department of Chemical Engineering, Hacettepe University, Ankara 06532, Turkey
[4] Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16200 Praha 6, Czech Republic
关键词
Cellulose - Characterization - Chemical modification - Contact angle - Enzyme immobilization - Enzymes - Fourier transform infrared spectroscopy - Glow discharges - Plasma polymerization - Surface structure - Surface treatment - X ray photoelectron spectroscopy;
D O I
10.1002/app.1559
中图分类号
学科分类号
摘要
Cellulose acetate membranes (CA) were modified by means of plasma polymerization 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 surfaces were characterized in detail by FTIR-ATR, XPS (ESCA), contact angle, and enzyme immobilization activity. The best treatment results were obtained for EDA with 5 W and 30 min and 15 W and 10 min. These results are discussed using surface analysis data.
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页码:1341 / 1352
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