Please use this identifier to cite or link to this item:
|Title:||Tripeptide-modified silicon nanowire based field-effect transistors as real-time copper ion sensors||Authors:||Bi, X.
|Issue Date:||Dec-2008||Citation:||Bi, X., Agarwal, A., Balasubramanian, N., Yang, K.-L. (2008-12). Tripeptide-modified silicon nanowire based field-effect transistors as real-time copper ion sensors. Electrochemistry Communications 10 (12) : 1868-1871. ScholarBank@NUS Repository.||Abstract:||A highly sensitive and specific copper ion sensor using single crystalline silicon nanowires (SiNWs) configured as field-effect transistors (FETs) is reported. The surface of SiNWs is functionalized with a His-containing tripeptide which serves as a copper sensitive layer. It is found that the complexation between copper ions and His-containing tripeptides leads to an increase in the SiNW conductance, and the position of His residue in the tripeptide plays an important role for the binding of copper ions. Only Gly-Gly-His-modified SiNWs exhibit selectivity for copper ions in the presence of zinc ions whereas Gly-His-Gly-modified SiNWs do not. Our experimental results demonstrate the potential utility of oligopeptide-modified SiNWs as metal ion sensors. © 2008 Elsevier B.V. All rights reserved.||Source Title:||Electrochemistry Communications||URI:||http://scholarbank.nus.edu.sg/handle/10635/64752||ISSN:||13882481|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 14, 2018
WEB OF SCIENCETM
checked on Oct 7, 2021
checked on Oct 14, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.