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This study aims to develop a highly selective microfluidic sensor for the detection of trace estrogens in wastewater.

Multiplexed Microfluidic-Based Sensor Using Photopolymerized Molecularly Imprinted Polymer Structures for the Detection of Estrogens in Wastewater

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A microfluidic sensor detects estrogens in wastewater, highlighting a novel approach for environmental monitoring.

This study aims to develop a highly selective microfluidic sensor for the detection of trace estrogens in wastewater.
Utilized molecularly imprinted polymers for sensor design.
Detected estrone, 17β-estradiol, and estriol using electrochemical impedance spectroscopy.
Photopolymerized MIP on functionalized nanocrystalline diamond substrates.
Validated results with UV–vis spectroscopy and gas chromatography–mass spectrometry.
Achieved a detection limit of 0.5 nM in both buffer and wastewater samples.
Impedance signal reached steady state within 10 minutes after analyte addition.
High selectivity confirmed for each MIP sensor against structural analogues.

Tahir et al. (2026) studied this question.

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