Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
637197 | Journal of Membrane Science | 2009 | 8 Pages |
Abstract
A novel single-layered enzyme-membrane using BPPO film which was pore-filled with cross-linked PVA containing TYR was prepared to develop a pesticide biosensor with an increased stability. The prepared enzyme-membrane was assembled on a glassy carbon electrode to detect pesticides. The voltammetric measurements revealed a coupled reaction, an enzymatic oxidation and an electrochemical reduction of catechol transported through the prepared membrane. A detection range of parathion and carbaryl was 0.01–1 ppb and 0.01–10 ppb, respectively. The activity in the enzyme-membrane was maintained for 1 month due to favorable aqueous environment of PVA for enzyme activity while BPPO film provided structural stability.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Joonmok Shim, Jung-Je Woo, Seung-Hyeon Moon, Gha-Young Kim,