New Method for Measuring Thiamine in Vitamins
Author Information
Author(s): Castro Rafael C., Páscoa Ricardo N. M. J., Saraiva M. Lúcia M. F. S., Santos João L. M., Ribeiro David S. M.
Primary Institution: Faculty of Pharmacy, University of Porto
Hypothesis
Can a FRET system using carbon dots and silver nanoparticles accurately quantify thiamine in multivitamin supplements?
Conclusion
The study developed a highly sensitive method for thiamine detection that is robust against interference from other vitamins.
Supporting Evidence
- The method achieved a determination coefficient (R2) of 0.952 and a relative error of prediction (REP%) of 11% using EEM data.
- Thiamine presence restored the photoluminescence of carbon dots in a concentration-dependent manner.
- Using a central composite orthogonal design, optimal conditions for synthesizing silver nanoparticles were established.
Takeaway
This study created a new way to measure thiamine in vitamin pills using special particles that glow and change when thiamine is present.
Methodology
The study used Förster resonance energy transfer (FRET) with carbon dots as donors and silver nanoparticles as acceptors to measure thiamine levels.
Limitations
The kinetic approach was less effective due to rapid FRET reversal by thiamine, leading to lower accuracy compared to the EEM approach.
Digital Object Identifier (DOI)
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