Quantitative analysis of nanoparticle internalization in mammalian cells by high resolution X-ray microscopy

Background: Quantitative analysis of nanoparticle uptake at the cellular level is critical to nanomedicine procedures. In particular, it is required for a realistic evaluation of their effects. Unfortunately, quantitative measurements of nanoparticle uptake still pose a formidable technical challenge. We present here a method to tackle this problem and analyze the number of metal nanoparticles present in different types of cells. The method relies on high-lateral-resolution (better than 30 nm) transmission x-ray microimages with both absorption contrast and phase contrast - including two-dimensional (2D) projection images and three-dimensional (3D) tomographic reconstructions that directly show the nanoparticles.


Published in:
Journal Of Nanobiotechnology, 9, -
Year:
2011
Publisher:
BioMed Central
ISSN:
1477-3155
Keywords:
Laboratories:




 Record created 2011-12-16, last modified 2018-03-18


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