In situ electrokinetic enhancement for self-assembled-monolayer-based electrochemical biosensing.
In situ electrokinetic enhancement for self-assembled-monolayer-based electrochemical biosensing.
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DOI:
10.1021/ac203245j
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发表时间:
2012-03-20
影响因子:
7.4
通讯作者:
Wong, Pak Kin
中科院分区:
文献类型:
--
作者:
Sin, Mandy L. Y.;Liu, Tingting;Pyne, Jeffrey D.;Gau, Vincent;Liao, Joseph C.;Wong, Pak Kin
This study reports a multifunctional electrode approach which directly implements electrokinetic enhancement on a self-assembled-monolayer-based electro-chemical sensor for point-of-care diagnostics. Using urinary tract infections as a model system, we demonstrate that electrokinetic enhancement, which involves in situ stirring and heating, can enhance the sensitivity of the strain specific 16S rRNA hybridization assay for 1 order of magnitude and accelerate the time-limiting incubation step with a 6-fold reduction in the incubation time. Since the same electrode platform is used for both electrochemical signal enhancement and electrochemical sensing, the multifunctional electrode approach provides a highly effective strategy toward fully integrated lab-on-a-chip systems for various biomedical applications.
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