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	Microfluidic surface-enhanced raman scattering sensors for online monitoring trace chemical mixing and reaction
	Mao, H.Y. ; Lv, P.P. ; Wu, W.G.
	2011
英文摘要	We report a microfluidic surface-enhanced Raman scattering (SERS) sensor for online monitoring the mixing and reaction between chemicals of low concentration. The SERS sensor is made up of a SERS-active substrate and a polydimethylsiloxane cap with microchannels for delivering solutions. The SERS substrate consists of noble-metal covered silicon nanopillar-forest patterns, which are fabricated based on an oxygen-plasma-treating-on-photoresist technique. Enhancement factor of the device is self-calibrated to be on the order of 5.2105, by utilizing the flat-metal areas beside the nanopillar-forest patterns as references. The mixing process of Crystal Violet and Rhodamine 6G trace solutions is characterized in the SERS sensor online and in real-time. Other kinetic features, including flow and diffusion, are also revealed. ? 2011 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/TRANSDUCERS.2011.5969273
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/295220]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Mao, H.Y.,Lv, P.P.,Wu, W.G.. Microfluidic surface-enhanced raman scattering sensors for online monitoring trace chemical mixing and reaction. 2011-01-01.

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