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FORMATION OF STABLE SUBMICRON PEPTIDE OR PROTEIN PARTICLES BY THIN FILM FREEZING
专利权人:
BOARD OF REGENTS; THE UNIVERSITY OF TEXAS SYSTEM
发明人:
Keith P. JOHNSTON,Joshua ENGSTROM,Robert O. WILLIAMS, III
申请号:
US16410189
公开号:
US20190274958A1
申请日:
2019.05.13
申请国别(地区):
US
年份:
2019
代理人:
摘要:
The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm′; area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm−;1.
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