Evan C. Unger,Ed Marinelli,Delphine El Mehdi,Paul K. Olson
申请号：
US14430186
公开号：
US20150250898A1
申请日:
2013.09.20
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A composition (100) which includes a shell (120) comprising at least one lipid, wherein said shell defines an enclosed space, a gas (110) disposed within the enclosed space, and a coating (130) of a polyalkylene glycol attached to and extending outwardly from lipid shell.
