The use of transmission electron microscopy in the quantification of nanoparticle dose

The use of transmission electron microscopy in the quantification of nanoparticle dose
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透射电子显微镜在纳米颗粒剂量定量中的应用

DOI:
10.1088/1742-6596/522/1/012055
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发表时间:
2014
期刊:
Conference Series
影响因子:
--
通讯作者:
Hondow N
Hondow N
中科院分区:
--
文献类型:
--
作者:
Hondow N

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纳米颗粒在临床医学中的潜在应用越来越多,包括靶向药物输送和生物医学成像的造影剂。目前的体外研究关注的是纳米颗粒的生物影响,通常使用电子显微镜来成像它们在细胞内的位置。在一定的暴露条件下,对细胞内化的纳米粒子绝对剂量进行量化,并了解影响这一剂量的因素是至关重要的。在这项工作中,我们的目标是通过体外细胞系开发量子点摄取的完整定量描述。薄细胞切片的透射电子显微镜提供了每个二维细胞切片的细胞囊泡的位置和数量以及每个囊泡的量子点数量。然后,这些结果可以与其他技术相关联,以量化整个细胞的内化纳米颗粒剂量分布。
There are an increasing number of potential applications for nanoparticles in clinical medicine, including targeted drug delivery and contrast agents for biomedical imaging. Current in vitro studies are concerned with the biological impact of nanoparticles, with electron microscopy commonly employed to image their intracellular location. It is critical to quantify the absolute nanoparticle dose internalized by cells in a given exposure, and to understand the factors which affect this. In this work we are aiming to develop a full quantitative description of quantum dot uptake by an in vitro cell line. Transmission electron microscopy of thin cell sections provides the location and number of cellular vesicles per 2-D cell slice plus the number of quantum dots per vesicle. These results can then be correlated to other techniques to quantify the internalized nanoparticle dose distribution for whole cells.
纳米颗粒分散体的 TEM 分析及其在体外细胞摄取定量中的应用
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
N. Hondow;P. Wang;R. Brydson;M. Holton;P. Rees;H. Summers;A. Brown
通讯作者: A. Brown
DOI: 10.1186/1743-8977-7-15
发表时间: 2010-06-03
影响因子: 10
作者:
Brandenberger C;Clift MJ;Vanhecke D;Mühlfeld C;Stone V;Gehr P;Rothen-Rutishauser B
通讯作者: Rothen-Rutishauser B
DOI: 10.1007/s11051-012-0977-3
发表时间: 2012-07-01
影响因子: 2.5
作者:
Hondow, Nicole;Brydson, Rik;Brown, Andy
通讯作者: Brown, Andy