Host-guest liquid gating mechanism with specific recognition interface behavior for universal quantitative chemical detection

Huimeng Wang, Yi Fan, Yaqi Hou, Baiyi Chen, Jinmei Lei, Shijie Yu, Xinyu Chen and Xu Hou ()
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Huimeng Wang: Xiamen University
Yi Fan: Xiamen University
Yaqi Hou: Xiamen University
Baiyi Chen: Xiamen University
Jinmei Lei: Xiamen University
Shijie Yu: Xiamen University
Xinyu Chen: Xiamen University
Xu Hou: Xiamen University

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract Universal visual quantitative chemical detection technology has emerged as an increasingly crucial tool for convenient testing with immediate results in the fields of environmental assessment, homeland security, clinical drug testing and health care, particularly in resource-limited settings. Here, we show a host-guest liquid gating mechanism to translate molecular interface recognition behavior into visually quantifiable detection signals. Quantitative chemical detection is achieved, which has obvious advantages for constructing a portable, affordable, on-site sensing platform to enable the visual quantitative testing of target molecules without optical/electrical equipment. Experiments and theoretical calculations confirm the specificity and scalability of the system. This mechanism can also be tailored by the rational design of host-guest complexes to quantitatively and visually detect various molecules. With the advantages of versatility and freedom from additional equipment, this detection mechanism has the potential to revolutionize environmental monitoring, food safety analysis, clinical drug testing, and more.

Date: 2022
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DOI: 10.1038/s41467-022-29549-1

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