On-site detection of tobramycin using low-cost and ultrasensitive ratiometric fluorescence sensing platforms based on S,N-co-doped dual emission carbon quantum dots

2026-08-03

PRE

Yuning Chen

叶

叶能胜 (Nengsheng Ye)

Lu Zhang *

Yuhong Xiang *

DOI：10.1016/j.aca.2026.346068

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• Synthesized S,N-deCQDs and probed their DNA adsorption/desorption by polyA length. • Developed an “on-off-on” ratiometric aptasensor for TOB with 2.14 nM detection limit. • Built two low-cost portable platforms for accurate TOB detection in milk and river water.

On-site detection of tobramycin using low-cost and ultrasensitive ratiometric fluorescence sensing platforms based on S,N-co-doped dual emission carbon quantum dots

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