Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass
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 surro...
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doaj-3a440f96afd74055b87294f136d4a8542020-11-24T21:32:33ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-05-01710.3389/fchem.2019.00395462056Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide GlassWei Xin0Tiange Wu1Tingting Zou2Ye Wang3Wenshuai Jiang4Fei Xing5JianJun Yang6Chunlei Guo7Chunlei Guo8The Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, ChinaSchool of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, ChinaSchool of Biomedical Engineering, Xinxiang Medical University, Xinxiang, ChinaSchool of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, ChinaThe Institute of Optics, University of Rochester, Rochester, NY, United StatesDespite 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 configuration 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.https://www.frontiersin.org/article/10.3389/fchem.2019.00395/fullreduced graphene oxidemicrofludicspolarization-dependent total internal reflectionultrasonic waveswater pressure |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wei Xin Tiange Wu Tingting Zou Ye Wang Wenshuai Jiang Fei Xing JianJun Yang Chunlei Guo Chunlei Guo |
spellingShingle |
Wei Xin Tiange Wu Tingting Zou Ye Wang Wenshuai Jiang Fei Xing JianJun Yang Chunlei Guo Chunlei Guo Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass Frontiers in Chemistry reduced graphene oxide microfludics polarization-dependent total internal reflection ultrasonic waves water pressure |
author_facet |
Wei Xin Tiange Wu Tingting Zou Ye Wang Wenshuai Jiang Fei Xing JianJun Yang Chunlei Guo Chunlei Guo |
author_sort |
Wei Xin |
title |
Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass |
title_short |
Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass |
title_full |
Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass |
title_fullStr |
Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass |
title_full_unstemmed |
Ultrasensitive Optical Detection of Water Pressure in Microfluidics Using Smart Reduced Graphene Oxide Glass |
title_sort |
ultrasensitive optical detection of water pressure in microfluidics using smart reduced graphene oxide glass |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Chemistry |
issn |
2296-2646 |
publishDate |
2019-05-01 |
description |
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 configuration 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. |
topic |
reduced graphene oxide microfludics polarization-dependent total internal reflection ultrasonic waves water pressure |
url |
https://www.frontiersin.org/article/10.3389/fchem.2019.00395/full |
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