caa a22 4500 445881143 CHVBK 20180317145543.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0624-1 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0624-1 Reagentless amperometric glucose biosensor based on the immobilization of glucose oxidase on a ferroceneNaY zeolite composite [Elektronische Daten] [Junping Dong, Xiaojuan Zhou, Hongbin Zhao, Jiaqiang Xu, Youbao Sun] Ferrocene (Fc) was encapsulated in the cavities of a NaY zeolite by vapor diffusion via sublimation at below 100°C. The resulting Fc@NaY zeolite composite was investigated by power X-ray diffraction, diffuse reflectance UV-vis and FT-IR spectroscopy, and by cyclic voltammetry. The results indicated that Fc was encapsulated into the zeolite whose microporous structure had remained intact. The Fc in the silica matrix had retained its electroactivity and did not leach out. A glucose biosensor was obtained by immobilization of the modified zeolite and glucose oxidase on a carbon paste electrode. It displays a linear response to glucose (from 0.8μM to 4.0mM), a detection limit of 0.2μM, and a response time of 4s. The good performance of the biosensor is ascribed to the biocompatibility of the zeolite and presence of Fc which facilitates the electron transfer from the enzyme to the surface of the electrode. Figure Reagentless glucose biosensor is constructed by immobilization of glucose oxidase on a ferrocene@NaY zeolite composite. The biosensor displays very good responses to the different concentrations of glucose. Springer-Verlag, 2011 NaY zeolite nationallicence Ferrocene nationallicence Glucose oxidase nationallicence Amperometric biosensor nationallicence Dong Junping Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut Zhou Xiaojuan Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut Zhao Hongbin School of Materials Science and Engineering, Shanghai University, 200444, Shanghai, China aut Xu Jiaqiang Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut Sun Youbao Shimadzu International Trading (Shanghai) Co.Ltd, 200052, Shanghai, China aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 281-288 0026-3672 174:3-4<281 2011 174 604 https://doi.org/10.1007/s00604-011-0624-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0624-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dong Junping Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 700 1- Zhou Xiaojuan Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 700 1- Zhao Hongbin School of Materials Science and Engineering, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 700 1- Xu Jiaqiang Department of Chemistry, College of Science, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 700 1- Sun Youbao Shimadzu International Trading (Shanghai) Co.Ltd, 200052, Shanghai, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 281-288 0026-3672 174:3-4<281 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer