A self-assembled graphene-based micro flow meter by streaming potential effect

Shota Sando, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study proposes a novel micro flow meter based on self-assembled graphene, which is applicable in microfluidics. The sensor demonstrates label-free detection of flow velocity as it directly senses dragged ion accumulation on the graphene surface by water flow, known as streaming potential effect. The sensor shows the lowest detection limit, down to 0.59 mm/s, among previously reported graphene-based flow sensors. Due to the direct sensing of flow velocity and micro-/nano-scale processability of graphene, the sensor is capable of being integrated into actual microfluidic systems, indicating an alternative flow meter to conventional methods, such as fluorescent and mechanical methods.

Original languageEnglish (US)
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1738-1741
Number of pages4
ISBN (Electronic)9781538627310
DOIs
StatePublished - Jul 26 2017
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: Jun 18 2017Jun 22 2017

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

Other19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
CountryTaiwan, Province of China
CityKaohsiung
Period6/18/176/22/17

Keywords

  • Graphene
  • Layer-by-Layer
  • Microfluidics
  • Sensor
  • Streaming potential

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  • Cite this

    Sando, S., & Cui, T. (2017). A self-assembled graphene-based micro flow meter by streaming potential effect. In TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 1738-1741). [7994403] (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2017.7994403