From pen to paper-based screening: an early-stage colorimetric µPAD with desktop-app readout for lead and nitrite

A Basu; Pooja C. Asani; Kalpita Nath; Soumen Das

doi:10.1039/d5ra09526c

January 1, 2026RSC AdvancesOpen Access

From pen to paper-based screening: an early-stage colorimetric µPAD with desktop-app readout for lead and nitrite

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Key Points

The research aims to develop a user-friendly, paper-based sensor for detecting lead and nitrite in water.
Designed a colorimetric microfluidic paper-based analytical device (µPAD)
Developed a desktop application for results reading
Tested the sensor with water samples from contaminated sites
The µPAD successfully detected lead and nitrite levels in water
Provided a quick and cost-effective solution for preliminary water testing

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Implication

This tool enables simple screening of water pollutants, suggesting new ways to monitor contamination.

Abstract

This paper-based tool aims to provide a simple do-it-yourself sensor for preliminary screening of common water pollutants at sites of highly contaminated water.

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Basu et al. (2026) studied this question.

synapsesocial.com/papers/69c61f2515a0a509bde17c1f https://doi.org/10.1039/d5ra09526c

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From pen to paper-based screening: an early-stage colorimetric µPAD with desktop-app readout for lead and nitrite

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

From pen to paper-based screening: an early-stage colorimetric µPAD with desktop-app readout for lead and nitrite

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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