MICROPARTICLES COMPRISING CELLULOSE NANOCRYSTALS AGGREGATED WITH PROTEINS AND COSMETIC USES THEREOF
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United States of America Patent
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Issued Date -
Jul 28, 2022
app pub date -
May 6, 2020
filing date -
May 10, 2019
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Abstract
Proteinaceous cellulose microparticles are provided. These microparticles comprise cellulose nanocrystals and one or more peptide, one or more protein, or a mixture thereof, wherein the nanocrystals and the peptide(s) and/or protein(s) are aggregated together to form the microparticles. In embodiments, the microparticles comprise silk fibroin and advantageously are hydrophobic and lipophilic. There are also provided cosmetic preparations comprising these microparticles. In advantageous embodiments, these cosmetic preparations comprise a water-in-oil emulsion or a lipophilic medium. Finally, there are also provided methods of producing the microparticles.
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