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May 13, 2026ChemistrySelect

Development of a Porous Gelatin‐G‐Polyacrylamide Hydrogel Biosensor for the Rapid Colorimetric Detection of Lead, Cadmium, and Mercury in Simulated Urine

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Authors

SJSrishti JagotaASArpit SandSWSudhir G. Warkar

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Overview

Novel biosensor reveals rapid colorimetric detection of lead, cadmium, and mercury in urine, suggesting POC applications for toxicity screening.

Key Points

  • To develop a novel biosensor for the rapid detection of heavy metals in urine samples.
  • Developed a semi-interpenetrating polymer network hydrogel sensor using free-radical polymerization of acrylamide and gelatin.
  • Incorporated dithizone for metal ion detection.
  • Conducted validation using Fourier transform infrared spectroscopy, x-ray diffraction, scanning electron microscopy, and thermogravimetry.
  • The sensor detects heavy metals within 1 to 6 minutes.
  • Color changes observed correlate linearly with metal ion concentrations.
  • Despite urine presence, the sensor effectively detects heavy metals.

Cite This Study

Jagota et al. (2026) studied this question.

synapsesocial.com/papers/6a03cbe01c527af8f1ecfa34https://doi.org/10.1002/slct.202507387
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