Surface interactions of gelatin-sourced carbon quantum dots with a model globular protein: insights into carbon-based nanomaterials and biological systems
2025

How Gelatin-Based Carbon Quantum Dots Affect a Milk Protein

publication Evidence: moderate

Author Information

Author(s): Masoudi Asil Shima, Narayan Mahesh

Primary Institution: The University of Texas at El Paso

Hypothesis

What are the effects of gelatin-sourced carbon quantum dots on the structure and function of the globular protein beta-lactoglobulin?

Conclusion

The study found that gelatin-derived carbon quantum dots disrupt the structure and function of beta-lactoglobulin, potentially affecting its role in transporting retinol.

Supporting Evidence

  • The interaction of gelatin-derived CQDs with beta-lactoglobulin resulted in a red-shift of the maximum emission wavelength.
  • Increasing concentrations of CQDs decreased the tryptophan fluorescence quenching of beta-lactoglobulin.
  • The secondary structure of beta-lactoglobulin was altered with increasing doses of CQDs, showing a decrease in helix content and an increase in beta-sheet content.

Takeaway

This study shows that tiny particles made from gelatin can change how a milk protein works, which might be important for how our bodies use vitamins.

Methodology

The study used spectroscopic techniques and binding affinity assays to analyze the interactions between gelatin-derived carbon quantum dots and beta-lactoglobulin.

Limitations

The study primarily focuses on one type of protein and may not generalize to all proteins or carbon nanomaterials.

Statistical Information

P-Value

5.5 μM

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1039/d4na00842a

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