Determining the size and shape dependence of gold nanoparticle uptake into mammalian cells

Determining the size and shape dependence of gold nanoparticle uptake into mammalian cells
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DOI:
10.1021/nl052396o
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发表时间:
2006-04-01
期刊:
影响因子:
10.8
通讯作者:
Chan, WCW
Chan, WCW
中科院分区:
材料科学1区
文献类型:
--
作者:
Chithrani, BD;Ghazani, AA;Chan, WCW

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我们研究了不同大小和形状的胶体金纳米颗粒在细胞内的摄取。我们发现动力学和饱和浓度高度依赖于纳米颗粒的物理尺寸(例如,14、50和74纳米颗粒的摄取半衰期分别为2.10、1.90和2.24小时)。这项研究的发现将对用于生物医学应用的纳米结构的化学设计产生影响(例如,通过纳米尺度调整细胞内递送速率和数量,以及为成像和治疗设计复杂的多功能纳米结构)。
We investigated the intracellular uptake of different sized and shaped colloidal gold nanoparticles. We showed that kinetics and saturation concentrations are highly dependent upon the physical dimensions of the nanoparticles (e.g., uptake half-life of 14, 50, and 74 nm nanoparticles is 2.10, 1.90, and 2.24 h, respectively). The findings from this study will have implications in the chemical design of nanostructures for biomedical applications (e.g., tuning intracellular delivery rates and amounts by nanoscale dimensions and engineering complex, multifunctional nanostructures for imaging and therapeutics).