학술논문
Molecularly Imprinted Polymer Based Antenna Sensor for Methanol Vapor Sensing
Document Type
Periodical
Author
Source
IEEE Microwave and Wireless Technology Letters IEEE Microw. Wireless Tech. Lett. Microwave and Wireless Technology Letters, IEEE. 33(9):1385-1388 Sep, 2023
Subject
Language
ISSN
2771-957X
2771-9588
2771-9588
Abstract
We report a state-of-the-art molecularly imprinted polymer (MIP) based antenna sensor to detect methanol vapor at room temperature. A conductive MIP-graphite composite was synthesized with specificity to methanol and deposited on a 3.6 GHz resonant patch antenna by drop coating. The copper-layered antenna with affinity composite worked in tandem to produce a sensitive and selective room temperature antenna sensor. Continuous sensing was accomplished by monitoring the reflected power, $S_{11}$ , of the antenna in a chamber with methanol vapor. The sensor functions under ambient conditions, providing a strong $S_{11}$ response of approximately $554\,\,\mu \text {mol} \text {dm}^{-3}\text {dB}^{-1}$ . Thus, the proposed sensor has great potential in gas-sensing applications, paving the way for antenna-based pollution monitoring.