期刊
NANOSCALE
卷 4, 期 1, 页码 293-297出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1nr11149c
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资金
- AcRF (ARC) from MOE [MOE2010-T2-1-060]
- CREATE from NRF
- NTU in Singapore [M58120031]
A large-area, continuous, few-layer reduced graphene oxide (rGO) thin film has been fabricated on a Si/SiO2 wafer using the Langmuir-Blodgett (LB) method followed by thermal reduction. After photochemical reduction of Pt nanoparticles (PtNPs) on rGO, the obtained PtNPs/rGO composite is employed as the conductive channel in a solution-gated field effect transistor (FET), which is then used for real-time detection of hybridization of single-stranded DNA (ssDNA) with high sensitivity (2.4 nM). Such a simple, but effective method for fabrication of rGO-based transistors shows great potential for mass-production of graphene-based electronic biosensors.
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