NDLI: Use of biologically designed gold nanowire for biosensor application

Content Provider	Springer Nature Link
Author	Shin, Sung Hee Kim, Gha Young Shim, Joonmok Kim, Jungok Hur, Hor Gil Lee, Don Jung Song, Jong In Moon, Seung Hyeon
Copyright Year	2012
Abstract	A highly sensitive tyrosinase (TYR)-based amperometric biosensor is prepared using biologically designed gold nanowires (AuNWs) for pesticide detection. The AuNWs were synthesized by dodecapeptide Midas-11 and were modified with the formation of self-assembled monolayer (SAM), followed by covalent binding with TYR. The prepared TYR-AuNWs-SPCE (screen printed carbon electrode) was compared with bare, AuNWs-, modified-AuNWs-SPCE by the measurement of cyclic voltammetry. The quantitative relationship between the inhibition percentage and the pesticide concentration at the TYR-AuNWs-SPCE was obtained by measuring the current response in various concentrations of pesticides. The reasonable detection range of parathion was determined to be 0.1 ppt through 10 ppb (R$^{ 2 }$=0.990) with 0.087 ppt of detection limits. The higher sensitivity and wider detection range of the TYR-based biosensor was achieved by the use of biologically synthesized AuNWs.
Starting Page	1666
Ending Page	1669
Page Count	4
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	29
Issue Number	12
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2012-11-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tyrosinase Gold Nanowire Peptide Amperometric Biosensor Pesticide Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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