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Issue 4, 2021

A distance-based capillary biosensor using wettability alteration

Author affiliations

Abstract

Distance-based detection methods with a quantitative readout are of great significance to point-of-care testing (POCT), are low-cost and user-friendly, and can be integrated into portable analytical devices. Here, we submit a visual quantitative distance-based sensor by capillary force alteration in a capillary tube. This sensor converts the wettability alteration caused by the target molecules into a capillary rise height signal. Moreover, the sensor profits from isothermal amplification technology, achieving the detection of miRNAs with high sensitivity and specificity by visually reading the height of the water in the capillary tube. The proposed biosensor shows great potential in routine clinical diagnosis as well as POCT in resource-limited settings.

Graphical abstract: A distance-based capillary biosensor using wettability alteration

Supplementary files

Article information


Submitted
13 Nov 2020
Accepted
04 Jan 2021
First published
05 Jan 2021

Lab Chip, 2021,21, 719-724
Article type
Paper

A distance-based capillary biosensor using wettability alteration

Y. Li, X. Men, G. Gao, Y. Tian, Y. Wen and X. Zhang, Lab Chip, 2021, 21, 719 DOI: 10.1039/D0LC01147A

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