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Transparent-film dual-mode sensor integrating an electroactivated PdNP/graphene electrode for enzyme-free lactate detection and visual cholesterol screening in serum
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DOI：10.1016/j.snr.2026.100489.png)
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Abstract
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• Transparent-film platform integrates electrochemical and visual readouts. • Electroactivated PdNP/graphene enables enzyme-free lactate sensing. • Lactate was determined from 0.1–8 mM with an 82 µM detection limit. • FeCl3/H2SO4 zone enabled rapid visual cholesterol screening. • The dual-mode device showed reliable performance in human serum samples.
Keywords:
Lactate sensing
Cholesterol screening
Palladium nanoparticles
Screen-printed graphene electrode
Transparent-film analytical device
Dual-mode sensor
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