Spray-On Colorimetric Sensors for Distinguishing the Presence of Lead Ions

Overview

Journal Chemosensors (Basel)

Specialty Biotechnology

Date 2024 Mar 11

PMID 38463943

Authors

Priyanka Shiveshwarkar

Justyn Jaworski

Affiliations

Soon will be listed here.

Abstract

Sprayable stimuli-responsive material coatings represent a new class of detection system which can be quickly implemented to transform a surface into a color-responsive sensor. In this work, we describe a dipicolylamine-terminated diacetylene-containing amphiphile formulation for spray coating on to a simple paper substrate to yield disposable test strips that can be used to detect the presence of lead ions in solution. We find the response to be very selective to only lead ions and that the sensitivity can be modulated by altering the UV curing time after spraying. Sensitive detection to at least 0.1 mM revealed a clear color change from a blue to red phase. This represents the first demonstration of a spray-on sensor system capable of detection of lead ions in solution.

Citing Articles

Assessing Wear Characteristics of Sprayable, Diacetylene-Containing Sensor Formulations.

Shiveshwarkar P, Nelson A, Nguyen M, Jaworski J Sensors (Basel). 2024; 24(21).

PMID: 39517822 PMC: 11548148. DOI: 10.3390/s24216925.

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