Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Light-Addressable Potentiometric Sensors in Microfluidics

Version 1 : Received: 8 December 2021 / Approved: 9 December 2021 / Online: 9 December 2021 (15:43:16 CET)

How to cite: li, X.; liu, S.; tan, J.; wu, C. Light-Addressable Potentiometric Sensors in Microfluidics. Preprints 2021, 2021120160 (doi: 10.20944/preprints202112.0160.v1). li, X.; liu, S.; tan, J.; wu, C. Light-Addressable Potentiometric Sensors in Microfluidics. Preprints 2021, 2021120160 (doi: 10.20944/preprints202112.0160.v1).

Abstract

Light-addressable potentiometric sensor (LAPS) is an electrochemical sensor based on the field-effect principle of semiconductor. It is able to sense the change of Nernst potential on the sensor surface, and the measuring area can be controlled by the illumination. Due to the unique light-addressable ability of LAPS, the chemical imaging system constructed with LAPS can realize the two-dimensional image distribution detection of chemical/biomass. In this paper, the advantages of LAPS as sensing unit of microelectrochemical analysis system are summarized. Then, the greatest development of LAPS analysis system is explained and discussed. Especially, this paper focused on the research of ion diffusion, enzymatic reaction, microbial metabolism and droplet microfluidics by using LAPS analysis system. Finally, the development trends and prospects of LAPS analysis system are illustrated.

Keywords

Light-Addressable Potentiometric Sensor (LAPS); Micropump; Microfluidics; Chemical Sensors; Biosensors

Subject

ENGINEERING, Biomedical & Chemical Engineering

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