Jump to main content
Jump to site search

Issue 1, 2013
Previous Article Next Article

Tattoo-based potentiometric ion-selective sensors for epidermal pH monitoring

Author affiliations

Abstract

This article presents the fabrication and characterization of novel tattoo-based solid-contact ion-selective electrodes (ISEs) for non-invasive potentiometric monitoring of epidermal pH levels. The new fabrication approach combines commercially available temporary transfer tattoo paper with conventional screen printing and solid-contact polymer ISE methodologies. The resulting tattoo-based potentiometric sensors exhibit rapid and sensitive response to a wide range of pH changes with no carry-over effects. Furthermore, the tattoo ISE sensors endure repetitive mechanical deformation, which is a key requirement of wearable and epidermal sensors. The flexible and conformal nature of the tattoo sensors enable them to be mounted on nearly any exposed skin surface for real-time pH monitoring of the human perspiration, as illustrated from the response during a strenuous physical activity. The resulting tattoo-based ISE sensors offer considerable promise as wearable potentiometric sensors suitable for diverse applications.

Graphical abstract: Tattoo-based potentiometric ion-selective sensors for epidermal pH monitoring

Back to tab navigation

Article information


Submitted
02 Oct 2012
Accepted
17 Oct 2012
First published
19 Oct 2012

Analyst, 2013,138, 123-128
Article type
Paper

Tattoo-based potentiometric ion-selective sensors for epidermal pH monitoring

A. J. Bandodkar, V. W. S. Hung, W. Jia, G. Valdés-Ramírez, J. R. Windmiller, A. G. Martinez, J. Ramírez, G. Chan, K. Kerman and J. Wang, Analyst, 2013, 138, 123
DOI: 10.1039/C2AN36422K

Social activity

Search articles by author

Spotlight

Advertisements