期刊
BIOCONJUGATE CHEMISTRY
卷 22, 期 4, 页码 690-699出版社
AMER CHEMICAL SOC
DOI: 10.1021/bc1004526
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类别
资金
- Army Research Office
- National Institutes of Health [GM27278, EB005658]
A series of charge-reversal lipids were synthesized that possess varying chain lengths and end functionalities. These lipids were designed to bind and then release DNA based on a change in electrostatic interaction with DNA. Specifically, a cleavable ester linkage is located at the ends of the hydrocarbon chains. The DNA release from the amphiphile was tuned by altering the length and position of the ester linkage in the hydrophobic chains of the lipids through the preparation of five new amphiphiles. The amphiphiles and corresponding lipoplexes were characterized by DSC, TEM, and X-ray, as well as evaluated for DNA binding and DNA transfection. For one specific charge-reversal 1:lipid, stable lipoplexes of approximately 550 nm were formed, and with this amphiphile, effective in vitro DNA transfection activities was observed.
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