Dual-readout smartphone-assisted and spectrophotometric colorimetric nanosensor for enzymeless bisphenol A detection.

Authors

Aziz Balouch, Muhammad Imran, Tasmina Kanwal, Khadija Rehman, Muhammad Hasnain, Jafar Saifullah, Yue Li, Dong-Sheng Guo, Muhammad Raza Shah, Sirajuddin

Published in

Mikrochimica acta. Volume 193. Issue 11. Oct 05, 2026. Epub Oct 05, 2026.

Abstract

A proof-of-concept approach is introduced that uses silver nanoparticles modified with Epimedium plant extract (EE-AgNPs) for BPA detection. The EE-AgNPs aggregate in the presence of BPA, demonstrating a measurable color change. This color change is monitored via a smartphone, enabling the prompt on-site determination of BPA. The sensor exhibited a linear response within the range 0.1-50 µM and a limit of detection (LOD) of 22 nM, which is below the thresholds set by the United States Food and Drug Administration, the National Health and Family Planning Commission of China, and European Union's specific migration limits, rendering it appropriate for the testing of polluted water and biological samples. Moreover, the study provides promising recoveries for BPA in water and biological specimens. The assimilation of the colorimetric system with smartphone offers a potential, cost-effective, and efficient option to traditional chromatographic approaches, especially for the initial evaluation of biological and polluted water samples.

PMID:
42832064
Bibliographic data and abstract were imported from PubMed on 06 Oct 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.