Bipolar lipids are described which are able to form complexes with polyanions. The lipids comprise a cationic head linked to a hydrophobic backbone and a hydrophilic tail and are capable of self assembly to form stable complexes in aqueous solutions. The lipids are of particular use for the delivery of bioactive substances such as nucleic acids to cells in vitro and especially in vivo.
描述了一种能够与多聚阴离子形成复合物的双极脂质。这些脂质包括一个带正电的头部,连接到一个疏
水主链和一个亲
水尾部,并能够自组装形成稳定的复合物在
水溶液中。这些脂质特别适用于将
生物活性物质如核酸传递给体内和体外的细胞。