Microparticles comprising cellulose nanocrystals aggregated with proteins and cosmetic use thereof

• Main Authors: ANDREWS, MARK, P, MORSE TIMOTHY, RACK MICHAEL, HU ZHIQIANG, WU JIE, BATEMAN MICHAEL
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PEPTIDES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides protein cellulose microparticles. These microparticles comprise cellulose nanocrystals and one or more peptides, one or more proteins, or mixtures thereof, wherein the nanocrystals aggregate with the peptides and/or proteins to form microparticles. In embodiments, the microparticles comprise silk fibroin, and advantageously, the silk fibroin is hydrophobic and lipophilic. The invention also provides cosmetic products comprising these microparticles. In advantageous embodiments, these cosmetic articles comprise a water-in-oil emulsion or a lipophilic medium. Finally, the invention also provides a method for preparing the microparticles. 本发明提供蛋白质纤维素微粒。这些微粒包含纤维素纳米晶体以及一种或多种肽、一种或多种蛋白，或其混合物，其中所述纳米晶体与所述肽和/或所述蛋白聚集在一起以形成微粒。在实施方案中，微粒包含丝素蛋白，并且有利地，所述丝素蛋白为疏水性和亲脂性的。本发明还提供包含这些微粒的化妆品制品。在有利的实施方案中，这些化妆品制品包含油包水乳液或亲脂性介质。最后，本发明还提供制备所述微粒的方法。