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US 12,485,072 B1Granted
Eco-friendly and biocompatible hybrid nanomaterials in sunscreen
AssigneeImam Mohammad Ibn Saud Islamic University
InventorsFaisal Khuwayshan L. Algethami, Sameera Shukir Mohammed Ameen, Khalid Mohammad Omer
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Abstract
A sunscreen formulation includes carbon quantum dots having reacted units of citric acid and thiamine and particles of a metal-organic framework including zinc and reacted units of terephthalic acid. The sunscreen formulation further comprises a liquid carrier and a stabilizer. The quantum dots are dispersed in the metal-organic framework. The particles of the metal-organic framework are dispersed in the liquid carrier.
Claims19
A sunscreen formulation, comprising:
- carbon quantum dots comprising reacted units of citric acid and reacted units of thiamine, wherein a weight ratio of the citric acid to the thiamine is from 0.4:1 to 0.7:1;
- particles of a metal-organic framework comprising zinc and reacted units of terephthalic acid, wherein the metal-organic framework comprises F-MOF5, and the F-MOF5 comprises spherical particles having an average diameter of 4 to 8 nm;
- a liquid carrier, and
- a stabilizer,
- wherein the carbon quantum dots are dispersed in the metal-organic framework, and
- wherein the particles of the metal-organic framework are dispersed in the liquid carrier.
3 more elements
Dependencies are inferred from the claim text.