Publication

Cell type dependence of carbon based nanomaterial toxicity

2010
Conference Papers

Abstract

Recent advances in nanotechnology led to the development of various nanostructures especially that of carbon-based nanomaterials (CBNs) for industrial and biomedical uses. As a result, the production as well as the human exposure to these materials will increase in the future. Thus, it is primordial to also know the associated health hazards. We performed in vitro cell viability studies on different types of cultured cells exposed to multiwalled carbon nanotubes and carbon nanoparticles. Our work indicates that the tested materials are toxic and that the effects of materials are cell type dependent. Light microscopic observations of the cells when exposed to the highest dose of nanomaterials showed morphological alterations, which are characteristic for cell death, and were most pronounced in the case of macrophage cells. Further experiments are aimed at elucidating the mechanisms of toxicity of CBNs. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Official source

https://infoscience.epfl.ch/entities/publication/f1188a0b-2d54-4265-8b11-7e97989392c1

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2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f1188a0b-2d54-4265-8b11-7e97989392c1

About this result

Related concepts (32)

Carbon nanotube

A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometer range (nanoscale). They are one of the allotropes of carbon. Single-walled carbon nanotubes (SWCNTs) have diameters around 0.5–2.0 nanometers, about 100,000 times smaller than the width of a human hair. They can be idealized as cutouts from a two-dimensional graphene sheet rolled up to form a hollow cylinder. Multi-walled carbon nanotubes (MWCNTs) consist of nested single-wall carbon nanotubes in a nested, tube-in-tube structure.

B cell

B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system. B cells produce antibody molecules which may be either secreted or inserted into the plasma membrane where they serve as a part of B-cell receptors. When a naïve or memory B cell is activated by an antigen, it proliferates and differentiates into an antibody-secreting effector cell, known as a plasmablast or plasma cell.

Nanomaterials

Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 and 100 nm (the usual definition of nanoscale). Nanomaterials research takes a materials science-based approach to nanotechnology, leveraging advances in materials metrology and synthesis which have been developed in support of microfabrication research. Materials with structure at the nanoscale often have unique optical, electronic, thermo-physical or mechanical properties.

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Cell type dependence of carbon based nanomaterial toxicity

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