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Title: Biomolecule-interactive flexible light emitting capacitor display
Authors: Qi, Xiaoying
Wu, Ruige
Lok, Boon Keng
Kerk, Wai Tat
Lai, Steve Foo Khuen
Fan, Wei
Pu, Kanyi
Keywords: Engineering::Chemical engineering
Issue Date: 2022
Source: Qi, X., Wu, R., Lok, B. K., Kerk, W. T., Lai, S. F. K., Fan, W. & Pu, K. (2022). Biomolecule-interactive flexible light emitting capacitor display. Small, 18(4), e2103541-.
Project: 2019-T1-002-045 
SERC A18A8b0059
Journal: Small 
Abstract: Ultrathin, lightweight, flexible, and conformable interactive displays that transduce external stimuli into human-readable signals are essential for emerging applications, such as wearable electronics, human-machine interfaces, and soft robots. Herein, a biomolecule-interactive flexible light emitting capacitor (LEC) display (BIO-LEC) capable of dynamic and quantitative visualization of biomolecules through naked-eye detectable electroluminescence (EL) emission is reported. BIO-LEC comprises a coplanar LEC light source at the bottom, and a designed microfluidic chip as sampling compartment at the top. The quantitative measurement feature of BIO-LEC is achieved by introducing the top liquid electrode, which possesses a unique long dielectric realization time, in the microfluidic chip. BIO-LEC is novel for the following reasons, 1) simple stimuli response principle based on correlating EL intensity to dielectric properties of the top liquid electrode; 2) simple test conditions whereby no labeling is required in the analyte solution to optically detect biomolecules; 3) effective sampling method through the design of an integrated microfluidic chip for hosting the top liquid electrode, ensuring good reproducibility and preventing contamination; 4) sensitive detection limit for heparin concentrations at clinically relevant levels, and 5) high compliance with industrial manufacturing standards.
ISSN: 1613-6810
DOI: 10.1002/smll.202103541
Rights: © 2021 Wiley-VCH GmbH. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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