Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass

doi:10.3389/fchem.2019.00395

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	Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass
	W.Xin; T.G.Wu; T.T.Zou; Y.Wang; W.S.Jiang; F.Xing
刊名	Frontiers in Chemistry
	2019
卷号	7 页码:8
关键词	reduced graphene oxide,microfludics,polarization-dependent total,internal reflection,ultrasonic waves,water pressure,sensors,films,Chemistry
ISSN号	2296-2646
DOI	10.3389/fchem.2019.00395
英文摘要	Despite recent progresses in the field of microfluidics, the effect of liquid pressure on the detection accuracy has been rarely studied. Here, we perform a quantitative analysis of such effect, by utilizing the sensitive optical responses of graphene to the refractive index (RI) change of its surrounding environment. We utilize a reflection coupling con figuration by combining the total internal reflection (TIR) and ultrasonic waves. The high-performance graphene is processed on common glasses by using the solution-processable oxidation-reduction method. We find that the RI change of water caused by a pressure as small as 500 Pa generated by the liquid level change in the microfluidics can be measured directly. The detection accuracy and response time limits are approximately 280 Pa and 100 ns, respectively. The Maxwell's boundary conditions, Fresnel's law, and Pascal's law are used in theoretical analyses. This work highlights the importance of liquid pressure in microfluidics and provides guidance in designing and accurate detection of microfluidic devices.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/62924]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	W.Xin,T.G.Wu,T.T.Zou,et al. Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass[J]. Frontiers in Chemistry,2019,7:8.
APA	W.Xin,T.G.Wu,T.T.Zou,Y.Wang,W.S.Jiang,&F.Xing.(2019).Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass.Frontiers in Chemistry,7,8.
MLA	W.Xin,et al."Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass".Frontiers in Chemistry 7(2019):8.