期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 50, 页码 34820-34832出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b09950
关键词
silica nanoparticles; protein adsorption; protein corona; cytotoxicity; cellular uptake
资金
- National Institute of Environmental Health Sciences of the NIH [R01ES024681]
- Skaggs Graduate Research Fellowship
- MRSEC Program of the NSF [DMR-1121252]
Slight alterations in nanoparticles' surface properties can significantly influence the corona composition which may alter their interaction with the biological milieu. Size and porosity of silica nanoparticles (SNPs) are known to be predominant factors influencing their dose-dependent toxicity. Little is known however about the extent and type of protein adsorption on SNPs as a function of physicochemical properties and the role this might play on mechanisms of cellular uptake and toxicity. In this work we investigated the influence of size and porosity of SNPs on protein adsorption, cellular uptake, and toxicity in RAW 264.7 macrophages. Toxicity of the SNPs was found to be concentration dependent, and the formation of the protein corona mitigated toxicity for all particles. Detailed analysis proteins recovered from each nanoparticle revealed similarities in the protein adsorption profile as a function of size and porosity. The mechanism of uptake was highly dependent on size rather than porosity or the adsorbed proteins.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据