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 language | English (US) |
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Title of host publication | 2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems, MEMS 2019 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 315-318 |
Number of pages | 4 |
ISBN (Electronic) | 9781728116105 |
DOIs | |
State | Published - Jan 2019 |
Event | 32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019 - Seoul, Korea, Republic of Duration: Jan 27 2019 → Jan 31 2019 |
Publication series
Name | Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) |
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Volume | 2019-January |
ISSN (Print) | 1084-6999 |
Conference
Conference | 32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019 |
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Country/Territory | Korea, Republic of |
City | Seoul |
Period | 1/27/19 → 1/31/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.