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A variety of alkyl acrylate emulsion polymers were investigated using rotating disc voltammetry and atomic force microscopy to assess their suitability as immobilisation matrices for biosensors. Continuous films with reproducible transport properties were the target. The rotating disc experiments showed that films formed from the emulsions Poly 14, Poly X1 and Poly X6 were continuous up to a thickness...
Hybrid biosensors for the determination of lactose were developed. Saccharomyces cerevisiae was entrapped in agar. Lactases (Lactozym and β-galactosidase of Enterobacter agglomerans) were adsorbed onto diethylaminoethyl cellulose (DE-52). Catalytic components were confined between the surface of a gas-permeable membrane of a CO 2 electrode and a dialysis membrane. Lactases hydrolysed lactose...
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