Hydrogel-Based Sensitive and Humidity-Resistant Oxygen Gas Sensors Enabled by Porous Ecoflex Membranes

Jindong Ye, Zixuan Wu, Yuning Liang, Bizhang Zhong, Zijing Zhou, Zhenyi Li, Yaoming Wei, Kai Tao, Jin Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, humidity-resistant, stable and sensitive oxygen gas sensors were fabricated by covering porous membranes on the surface of carrageenan/polyacrylamide (PAM) double-network (DN) hydrogel. The breathable and waterproof porous ecoflex membranes were fabricated via a facile and cost-effective template method. The proposed approach is capable of creating the micropores on the ecoflex membranes using the salt as hard template and water as the solvent. We also proposed the working mechanism of the ion-conducting hydrogel based oxygen sensor. The porous membranes enhance the immunity of the hydrogel sensor to humidity and retain its high response to oxygen. The response of the sensor to oxygen can keep stable in different relative humidity (RH) with the sensitivity of 4.49× 10-2\ppm-1.

Original languageEnglish
Title of host publication21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages843-846
Number of pages4
ISBN (Electronic)9781665412674
DOIs
StatePublished - 20 Jun 2021
Event21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 - Virtual, Online, United States
Duration: 20 Jun 202125 Jun 2021

Publication series

Name21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021

Conference

Conference21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Country/TerritoryUnited States
CityVirtual, Online
Period20/06/2125/06/21

Keywords

  • DN hydrogel
  • humidity resistance
  • Oxygen sensor
  • porous ecoflex membranes

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