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New fluorescent paper strips make vitamin B12 testing simpler (opens in a new tab)
news-medical.net · 2026-10-01
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New fluorescent paper strips make vitamin B12 testing simpler
news-medical.net · 2026-10-01
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Portable detection of vitamin B12 using fluorescence quenching method of boron and nitrogen co-doped carbon dots
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Claim 1 of 6Not checkedA new fluorescence-based strategy can detect vitamin B12 in food samples using boron- and nitrogen-co-doped carbon dots.View evidenceHide evidence
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Claim 2 of 6Not checkedThe sensing chemistry was adapted into portable filter-paper strips and a cotton-swab device intended to make vitamin B12 detection faster, cheaper, and easier outside instrument-heavy workflows.View evidenceHide evidence
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Claim 3 of 6Not checkedThe probe showed a linear fluorescence response from 0 to 100 μM with a detection limit of 0.02 μM, and selectivity tests found that vitamin B12 caused pronounced quenching while other tested compounds produced little response.View evidenceHide evidence
As statedlinear response 0 to 100 μM; detection limit 0.02 μM
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Claim 4 of 6Not checkedOn paper strips, image-based analysis produced a strong linear relationship between vitamin B12 concentration and the green-to-blue intensity ratio from 0 to 80 μM (R² = 0.9927).View evidenceHide evidence
As stated0 to 80 μM; R² = 0.9927
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Claim 5 of 6Not checkedIn egg-yolk and goat-liver-powder samples, the method gave recovery values of 97.09% to 101.22% and closely matched HPLC measurements.View evidenceHide evidence
As statedrecoveries 97.09% to 101.22%
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Claim 6 of 6Not checkedThe article says the authors suggested next steps such as replacing the laboratory UV lamp with a battery-powered UV-LED and adding smartphone-based image analysis.View evidenceHide evidence
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Portable detection of vitamin B12 using fluorescence quenching method of boron and nitrogen co-doped carbon dots
Biomedical Analysis · 2026
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Papers considered
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Crossref, PubMed, Europe PMC · 15 candidate papers
Portable detection of vitamin B12 using fluorescence quenching method of boron and nitrogen co-doped carbon dots
Biomedical Analysis · 2026 · Crossref
Carbon dot-chitosan nanocrystal photocatalyst for the photodegradation of methyl violet and removal of degradation products for the pretreatment of textile industry effluent.
Environmental Science and Pollution Research International · 2026 · PubMed
Boron and nitrogen co-doped carbon dots for fructose sensing: selective visual readout and machine learning-assisted semi-quantification.
Food Chemistry · 2026 · PubMed, Europe PMC
Enhanced Photoluminescence in Nitrogen-Boron-Codoped Carbon Dots: A First-Principles Study on Synergistic Charge Transfer Mechanisms.
The Journal of Physical Chemistry. a · 2026 · PubMed, Europe PMC
Determination of vitamin B12 via pH-dependent quenching of the fluorescence of nitrogen doped carbon quantum dots
Microchimica Acta · 2017 · Crossref
Blue-Emissive Nitrogen-Doped Carbon Dots for Picric Acid Detection: Molecular Fluorescence Quenching Mechanism
Crossref
And 9 more candidates considered.