Issue 13, 2018

Wettability alteration in a functional capillary tube for visual quantitative point of care testing

Abstract

Capillarity is an extremely common physical–chemical phenomenon related to wettability in nature, which has wide theoretical and practical interest. Herein, we reported a facile sensing device based on capillary force change in a vertical capillary tube. In this height-based capillary sensor (HCS), the inner surface of the capillary tube was modified with a layer of molecules with wetting responsibility based on the well-known simple surface chemistry. With targets in different concentrations, the wettability of the surface modified with responsive molecules would produce different changes. The responsive surfaces would change the capillary force of the vertical capillary tube, and result in different column heights. Like a thermometer, H+ and phenol have been quantified visually based on the height of the liquid inside the capillary tube.

Graphical abstract: Wettability alteration in a functional capillary tube for visual quantitative point of care testing

Supplementary files

Article information

Article type
Communication
Submitted
21 اپریل 2018
Accepted
16 میٔ 2018
First published
18 میٔ 2018

Analyst, 2018,143, 3001-3005

Wettability alteration in a functional capillary tube for visual quantitative point of care testing

Y. Li, X. Jiao, X. Du, F. Wang, Q. Wei, Y. Wen and X. Zhang, Analyst, 2018, 143, 3001 DOI: 10.1039/C8AN00735G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements