Facile Fabrication of a Shrink-Induced Ultrasensitive Microelectrode Arrays Modified with Graphene /BI Nanoparticles Film for Trace Lead Ions Detection

Zonghao Wu, Tianhong Cui

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

Abstract

For the first time, a facile and low-cost method for fabrication of ultrasensitive microelectrode arrays (MEA) lead ions sensor based on heat-shrinkable polymer and modified with graphene-bismuth nanocomposites was presented. The characterization result indicated that the electrode surface presented unique wrinkle structure by heating-shrink process. Due to the non-linear diffusion characteristic of the micro electrode, the unique micro-wrinkle structure, and excellent catalytic activity of Bi NPs, performance of the sensor had been improved greatly. The lead ions stripping peak current (Faraday current) and sensitivity increased notably, and the sensor's detection limit was achieved as 0.016 ppb. This is a very simple and low-cost but effective way to detect ultra-low concentrations lead ions and the microelectrode arrays based on heat-shrinkable film can be applied to many fields.

Original languageEnglish (US)
Title of host publication2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems, MEMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages315-318
Number of pages4
ISBN (Electronic)9781728116105
DOIs
StatePublished - Jan 2019
Event32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019 - Seoul, Korea, Republic of
Duration: Jan 27 2019Jan 31 2019

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2019-January
ISSN (Print)1084-6999

Conference

Conference32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019
CountryKorea, Republic of
CitySeoul
Period1/27/191/31/19

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Wu, Z., & Cui, T. (2019). Facile Fabrication of a Shrink-Induced Ultrasensitive Microelectrode Arrays Modified with Graphene /BI Nanoparticles Film for Trace Lead Ions Detection. In 2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems, MEMS 2019 (pp. 315-318). [8870893] (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS); Vol. 2019-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMSYS.2019.8870893