PEGylated PRINT Nanoparticles: The Impact of PEG Density on Protein Binding, Macrophage Association, Biodistribution, and Pharmacokinetics
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- 作者：Jillian L. Perry ; Kevin G. Reuter ; Marc P. Kai ; Kevin P. Herlihy ; Stephen W. Jones ; J. Chris Luft ; Mary Napier ; James E. Bear ; Joseph M. DeSimone
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：October 10, 2012
- 年：2012
- 卷：12
- 期：10
- 页码：5304-5310
- 全文大小：320K
- 年卷期：v.12,no.10(October 10, 2012)
- ISSN：1530-6992
文摘
In this account, we varied PEGylation density on the surface of hydrogel PRINT nanoparticles and systematically observed the effects on protein adsorption, macrophage uptake, and circulation time. Interestingly, the density of PEGylation necessary to promote a long-circulating particle was dramatically less than what has been previously reported. Overall, our methodology provides a rapid screening technique to predict particle behavior in vivo and our results deliver further insight to what PEG density is necessary to facilitate long-circulation.