Assessment of cellular uptake and cytotoxicity of carbon nanotubes using flow cytometry.

Research output: Chapter in Book/Report/Conference proceedingChapter


The field of carbon nanotube (CNT) functionalization is increasingly growing for the purpose of enhancing the biocompatibility of CNT for medical and biological applications. Properties of CNT such as the type of functionalization, charge density, and the dispersibility profile are expected to modulate CNT cellular uptake and toxicity profile in vitro. The assay described here allows for rapid screening of CNT cellular uptake in vitro and assessing the acute cytotoxicity simultaneously. CNT cellular uptake is measured qualitatively by light scattering analysis without differentiating between cell binding and internalisation of the CNT by the cells. In addition, flow cytometry is used to combine light scattering analysis with flow cytometry-based Annexin V/propidium iodide assay to measure the cytotoxicity. This assay is rapid, reliable, and allows for comparative analysis between various types of CNT studied.

Bibliographical metadata

Original languageEnglish
Title of host publicationMethods in molecular biology (Clifton, N.J.)|Methods Mol. Biol.
Number of pages11
Publication statusPublished - 2010

Publication series

NameMethods in Molecular Biology