Jump to main content
Jump to site search

Issue 31, 2021, Issue in Progress

Electrochemical deposition of highly hydrophobic perfluorinated polyaniline film for biosensor applications

Author affiliations

Abstract

Highly hydrophobic perfluorinated polyaniline thin films with water contact angle of ∼140° and low internal resistance properties are prepared through electrochemical polymerization. UV-visible spectroscopy demonstrates a gradual evolution of the polaron band which indicates the electronic conductive properties of the polymers. Simultaneous possession of the water-repelling property and electron conductivity for superhydrophobic perfluorinated polyaniline leads to a unique polymer that is suitable as a solid contact in ion-selective electrodes for in situ monitoring of pH changes during early stages of inflammation and septic shock. The superhydrophobic properties should suppress interactions with interfering salts and proteins, and the sensitivity towards protons could be monitored by measuring the phase boundary potential, which depends on the H+ concentration. The potentiometric measurements demonstrate a fast response with a slope of 44.4 ± 0.2 mV per unit pH. The presence of interfering ions and/or human serum albumin does not have any significant effect on the performance of the perfluorinated film. Moreover, it is demonstrated that the response of the perfluorinated film is reversible within the biomedically relevant pH range from 4.0 to 8.5, and stable over time.

Graphical abstract: Electrochemical deposition of highly hydrophobic perfluorinated polyaniline film for biosensor applications

Supplementary files

Article information


Submitted
24 Mar 2021
Accepted
07 May 2021
First published
25 May 2021

This article is Open Access

RSC Adv., 2021,11, 18852-18859
Article type
Paper

Electrochemical deposition of highly hydrophobic perfluorinated polyaniline film for biosensor applications

E. Tomšík, P. Dallas, I. Šeděnková, J. Svoboda and M. Hrubý, RSC Adv., 2021, 11, 18852 DOI: 10.1039/D1RA02325J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements