共 35 条
Lipid-Gold-Nanoparticle Hybrid-Based Gene Delivery
被引:55
作者:
Rhim, Won-Kyu
[1
]
Kim, Jin-Soo
[1
]
Nam, Jwa-Min
[1
]
机构:
[1] Seoul Natl Univ, Dept Chem, Seoul 151747, South Korea
来源:
关键词:
gene delivery;
gold;
lipids;
nanoparticles;
non-viral vectors;
D O I:
10.1002/smll.200800628
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Lipid-DNA-AuNP (L-DNA-AuNP) hybrid-based gene delivery system was devised for better transfection efficiency and reduced cytotoxicity by taking advantages of AuNPs and liposomes as gene-delivery vehicles. pDNA-AuNPs were modified with cationic liposomes to form L-pDNA-AuNP hybrids and its structures were characterized using a cryo-transmission electron microscope (cryo-TEM). The transfection results show that the lipid-AuNP hybrid system has much better transfection efficiency than the liposome-based system. Dehydrogenases in viable cells induce a change in color, while liposome-based transfection system shows the highest cytotoxicity. It is also seen that only the L-pDNA-AuNP hybrid-based gene delivery system has both high delivery efficiency and low cytotoxicity. Less lipid is needed in the L-pDNA-AuNP system for efficient pDNA deliver than the lipid-pDNA system.
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页码:1651 / 1655
页数:5
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