ArticleMikrochimica acta2025
Dual-mode detection of lactic acid using B, N-doped carbon dots with peroxidase-mimicking activity for diabetes monitoring.
Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Electronic-photonic interplay in nitrogen-doped MXene quantum dots: mechanistic insights into dual-mode and multiplexed sensing.RSC advances · 2026Review
- β-Cyclodextrin-functionalized green-emissive carbon dots for supramolecular recognition and smartphone detection of major Alternaria mycotoxins in tomato paste.Mikrochimica acta · 2026Article
- Dual mode fluorescence and spectrophotometric cefixime sensing using onion juice nitrogen doped carbon dots with smartphone and paper strip readouts.Scientific reports · 2025Article
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5 authors.
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Abstract
The development is reported of a novel dual-mode sensing platform for lactic acid detection based on boron and nitrogen co-doped carbon dots (B, N-CDs) with intrinsic peroxidase-like activity. Our detection strategy leverages the enzymatic oxidation of lactic acid by lactate oxidase (LOX), generating hydrogen peroxide (H₂O₂) as a byproduct. The B, N-CDs catalyze the H₂O₂-mediated reduction of 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) to form a crimson-colored formazan product, enabling colorimetric detection. Concurrently, H₂O₂ exposure enhances the fluorescence intensity of B, N-CDs, facilitating sensitive fluorometric detection. The colorimetric method demonstrated a linear response range of 2.0-16.0 μM with a limit of detection (LOD) of 0.72 μM, while the fluorometric approach exhibited linearity from 1.0 to 30.0 μM with an improved LOD of 0.31 μM. Both detection modalities displayed excellent selectivity, with recoveries of 98.57-99.50% for colorimetric measurements and 97.00-99.20% for fluorometric determinations in the presence of potential interferents. The practical utility of this dual-response system was validated through successful application to plasma samples from diabetic patients, revealing significantly elevated lactic acid levels compared to healthy controls.
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