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Superhydrophobic Surface Enhanced Raman Scattering Sensing using Janus Particle Arrays Realized by Site-Specific Electrochemical Growth.

ABSTRACT: Site-specific electrochemical deposition is used to prepare polystyrene (PS)-Ag Janus particle arrays with superhydrophobic properties. The analyte molecules can be significantly enriched using the superhydrophobic property of the PS-Ag Janus particle array before SERS detections, enabling an extremely sensitive detection of molecules in a highly diluted solution (e.g., femtomolar level). This superhydrophobic surface enhanced Raman scattering sensing concept described here is of critical significance in biosensing and bioanalysis. Most importantly, the site-specific electrochemical growth method we developed here is a versatile approach that can be used to prepare Janus particle arrays with different properties for various applications.

SUBMITTER: Yang S

PROVIDER: S-EPMC3989947 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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Superhydrophobic Surface Enhanced Raman Scattering Sensing using Janus Particle Arrays Realized by Site-Specific Electrochemical Growth.

Yang Shikuan S Hricko Patrick John PJ Huang Po-Hsun PH Li Sixing S Zhao Yanhui Y Xie Yuliang Y Guo Feng F Wang Lin L Huang Tony Jun TJ

Journal of materials chemistry. C 20140101 3

Site-specific electrochemical deposition is used to prepare polystyrene (PS)-Ag Janus particle arrays with superhydrophobic properties. The analyte molecules can be significantly enriched using the superhydrophobic property of the PS-Ag Janus particle array before SERS detections, enabling an extremely sensitive detection of molecules in a highly diluted solution (<i>e.g.</i>, femtomolar level). This superhydrophobic surface enhanced Raman scattering sensing concept described here is of critical ...[more]

PMID: 24748991

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