期刊
ACS NANO
卷 2, 期 11, 页码 2213-2218出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn800507t
关键词
gold nanoparticles; transfection; glutathione; delivery; DNA
类别
资金
- NIH [GM077173]
- NSF-sponsored Center for Hierarchical Manufacturing [DMI-0531171]
- MRSEC facilities
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [820506] Funding Source: National Science Foundation
Gold colloids functionalized with amino acids provide a scaffold for effective DNA binding with subsequent condensation. Particles with lysine and lysine dendron functionality formed particularly compact complexes and provided highly efficient gene delivery without any observed cytotoxicity. Nanoparticles functionalized with first generation lysine dendrons (NP-LysG1) were similar to 28-fold superior to polylysine in reporter gene expression. These amino acid-based nanoparticles were responsive to intracellular glutathione levels, providing a tool for controlled release and concomitant expression of DNA.
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