Differential Protein Adsorption and Cellular Uptake of Silica Nanoparticles Based on Size and Porosity
| Autor: | Jiban Saikia, Seyyed Pouya Hadipour Moghaddam, Mostafa Yazdimamaghani, Hamidreza Ghandehari |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Chromatography
Materials science Nanoparticle Protein Corona 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Article 0104 chemical sciences Silica nanoparticles Toxicity Biophysics General Materials Science Composition (visual arts) 0210 nano-technology Porosity Function (biology) Protein adsorption |
| Popis: | 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 of the amount of 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. |
| Databáze: | OpenAIRE |
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