Determining the pharmacokinetics and long-term biodistribution of SiO2 nanoparticles in vivo using accelerator mass spectrometry.

Determining the pharmacokinetics and long-term biodistribution of SiO2 nanoparticles in vivo using accelerator mass spectrometry.
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使用加速器质谱法确定体内SIO2纳米颗粒的药代动力学和长期生物分布。

DOI:
10.1021/nl302412f
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发表时间:
2012-11-14
期刊:
影响因子:
10.8
通讯作者:
Turteltaub KW
Turteltaub KW
中科院分区:
材料科学1区
文献类型:
--
作者:
Malfatti MA;Palko HA;Kuhn EA;Turteltaub KW

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生物分布是更好地理解二氧化硅纳米颗粒(SiNP)安全性的重要因素。目前,缺乏关于生物分布的全面研究,很可能是由于缺乏适当的分析方法。使用加速器质谱(AMS)研究14 C-SiNP的给药剂量、PK和体内长期生物分布之间的关系。PK分析表明,SiNP从中央室迅速清除,分布到网状内皮系统的组织中,并在8周的时间过程中持续存在于组织中,这引起了关于生物蓄积潜力和相关长期效应的问题。
Biodistribution is an important factor in better understanding silica dioxide nanoparticle (SiNP) safety. Currently, comprehensive studies on biodistribution are lacking, most likely due to the lack of suitable analytical methods. Accelerator mass spectrometry (AMS) was used to investigate the relationship between administered dose, PK, and long-term biodistribution of 14C-SiNPs in vivo. PK analysis showed that SiNPs were rapidly cleared from the central compartment, were distributed to tissues of the reticuloendothelial system, and persisted in the tissue over the 8-week time course, raising questions about the potential for bioaccumulation and associated long-term effects.
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