Effect of different modifications of BEA-zeolites on operational characteristics of conductometric biosensor

Date

2012-08-01

Author

Kucherenko, I. S.
Soldatkin, O. O.
Soy, E.
Kirdeciler, K.
ÖZTÜRK, SEMRA
Akata Kurç, Burcu
Jaffrezic-Renault, N.
Soldatkin, A. P.
Dzyadevych, S. V.

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Effect of different modifications of zeolite Na+-BEA on working characteristics of urease-based conductometric biosensor was studied. As the biosensor sensitive elements were used bioselective membranes based on urease and various zeolites immobilised with bovine serum albumin on the surface of conductometric transducers. Influence of zeolites on sensitivity of urea biosensor was investigated as well as reproducibility of biosensor signal and reproducibility of activity of the bioselective element after different variants of urease immobilisation on the surface of conductometric transducer. The biosensors based on zeolites (NH4+-BEA 30 and H+-BEA 30) were shown to be the most sensitive. Concentration of these zeolites in the bioselective membrane was optimized. Use of zeolites modified with methyl viologen and silver was ascertained to be of no prospect for urea conductometric biosensors. It was demonstrated that characteristics of urea biosensors can be regulated, varying zeolites modifications and their concentrations in bioselective membranes.

Subject Keywords

Zeolite, Conductometric transducer, Biosensor, Urease, Urea

URI

https://hdl.handle.net/11511/30070

Journal

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS

DOI

https://doi.org/10.1016/j.msec.2012.04.056

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

I. S. Kucherenko et al., “Effect of different modifications of BEA-zeolites on operational characteristics of conductometric biosensor,” MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, pp. 1648–1653, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30070.