Fluorescent carbon quantum dots from Phoenix Dactylifera fruit pulp for UV radiation protection

F. O. Oyedeji, Olufunsho Samuel Bankole-Ojo


Carbon quantum dots (CQDs) have attracted significant attention due to their wide range of applications. These include biosensing, bioimaging, wound healing and antibacterial applications.  In this study, we examine the potential Ultraviolet (UV) radiation protection role of CQDs towards the development of viable sunscreens. The CQDs will serve as a less toxic and bio-compatible alternative to the more toxic sunscreen actives used in commercial products. Phoenix dactylifera (date) fruit pulp was used as a promising precursor for the synthesis of fluorescent CQDs. The effects of reaction temperature and reaction time on the %mass yield, hydrodynamic size and zeta potential were evaluated. The morphology and surface groups were studied before and after dialysis. The optical properties of the CQDs were examined spectrophotometrically, and the sun protection factor was calculated to obtain an insight into whether the CQDs are suitable for use as filters for the development of new sunscreens. From the results obtained, considerable sun protection factor values were obtained at small CQDs concentrations. This potentiates their use for the development of viable and less toxic sunscreens.


Carbon quantum dots; Phoenix dactylifera; UV protection; Sunscreen; Sun Protection Factor

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DOI: https://doi.org/10.48442/IMIST.PRSM/jasi-v11i1-3.31990


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