A label-free impedimetric strategy using interdigitated electrodes for tetracycline detection in Milk

Son Hai Nguyen

doi:10.1016/j.fochx.2026.104171

A label-free impedimetric strategy using interdigitated electrodes for tetracycline detection in Milk

2026-07-06

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Son Hai Nguyen

H

Huy Quang Nguyen

M

Mai Thi Tran *

DOI：10.1016/j.fochx.2026.104171

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Abstract

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• Interdigitated electrode-based impedimetric strategy enables sensitive tetracycline detection in milk • Label-free and non-enzymatic quantification of tetracycline residues in complex dairy matrices • Wide linear response (62.5–1000 nM) with low detection (2.47 nM) and quantification (8.23 nM) limits • High selectivity against common coexisting antibiotics and interferents in milk • Reproducible and stable sensing platform suitable for practical food analysis applications

Keywords:

Interdigitated electrodes

Mn-doped ZnS

Chitosan

Impedimetric biosensor

Tetracycline detection

Milk safety

A label-free impedimetric strategy using interdigitated electrodes for tetracycline detection in Milk

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