Visual Chemical Detection Mechanism by a Liquid Gating System with Dipole-Induced Interfacial Molecular Reconfiguration

Yi Fan; Zhizhi Sheng; Jun Chen; Hong Pan; Baiyi Chen; Feng Wu; Shuli Wang; Xinyu Chen; Xu Hou

doi:10.1002/anie.201814752

Visual Chemical Detection Mechanism by a Liquid Gating System with Dipole-Induced Interfacial Molecular Reconfiguration

Angew Chem Int Ed Engl. 2019 Mar 18;58(12):3967-3971. doi: 10.1002/anie.201814752. Epub 2019 Feb 7.

Authors

Yi Fan¹, Zhizhi Sheng^{1

2}, Jun Chen^{1

2}, Hong Pan¹, Baiyi Chen^{1

2}, Feng Wu³, Shuli Wang^{1

2}, Xinyu Chen⁴, Xu Hou^{1

2

3

5}

Affiliations

¹ State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
² Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, 361005, P. R. China.
³ Research Institute for Soft Matter and Biomimetics, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, P. R. China.
⁴ Graphene Industry and Engineering Research Institute, Xiamen University, Xiamen, 361005, P. R. China.
⁵ Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, 361005, P. R. China.

PMID: 30644153
DOI: 10.1002/anie.201814752

Abstract

Chemical detection has a wide range of applications. The detection of a certain substance is so vital that new detection mechanisms with features such as low-cost, accessibility, and readily available visual markers are in demand. Herein, a liquid-gating-based chemical-detection mechanism is reported, which has a dynamic gas/liquid interface due to dipole-induced interfacial molecular reconfiguration. The mechanism exhibits a sensitive relationship between the dipole-force-induced rearrangement of interfacial molecules and transmembrane gating behavior. These features can be utilized to create visual markers for detection by converting the analyte-mediated interfacial interaction to a pressure-driven marker movement. This "green" detection mechanism requires no electrical energy input and has readily available markers for anyone to observe directly. This new mechanism opens a window for a more in-depth exploration of combining liquid-gating mechanisms with detection mechanisms.

Keywords: chemical detection; interfaces; liquid gating; membranes; molecular reconfiguration.

Publication types

Research Support, Non-U.S. Gov't

Abstract

Publication types

Grants and funding