Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97502
Title: Fabrication of nanoelectrode ensembles by electrodepositon of Au nanoparticles on single-layer graphene oxide sheets
Authors: Wang, Zhijuan
Zhang, Juan
Yin, Zongyou
Wu, Shixin
Mandler, Daniel
Zhang, Hua
Issue Date: 2012
Source: Wang, Z., Zhang, J., Yin, Z., Wu, S., Mandler, D., & Zhang, H. (2012). Fabrication of nanoelectrode ensembles by electrodepositon of Au nanoparticles on single-layer graphene oxide sheets. Nanoscale, 4(8), 2728-2733.
Series/Report no.: Nanoscale
Abstract: Nanoelectrode ensembles (NEEs) have been fabricated by the electrodeposition of Au nanoparticles (AuNPs) on single-layer graphene oxide (GO) sheets coated on a glassy carbon electrode (GCE). The fabricated NEEs show a typical sigmoidal shaped voltammetric profile, arising from the low coverage density of AuNPs on GCE and large distance among them, which can be easily controlled by varying the electrodeposition time. As a proof of concept, after the probe HS-DNA is immobilized on the NEEs through the Au–S bonding, the target DNA is detected with the methylene blue intercalator. Our results show that the target DNA can be detected as low as 100 fM, i.e. 0.5 amol DNA in 5 μL solution.
URI: https://hdl.handle.net/10356/97502
http://hdl.handle.net/10220/10737
ISSN: 2040-3364
DOI: 10.1039/c2nr30142c
Rights: © 2012 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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