Shape-Dependent Cytotoxicity of Polyaniline Nanomaterials in Human Fibroblast Cells

Authors: Oh, Wan-Kyu; Kim, Sojin; Kwon, Ohseok; Jang, Jyongsik

Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 5, May 2011 , pp. 4254-4260(7)

Publisher: American Scientific Publishers

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Abstract:

The toxicity of polyaniline (PANI) nanomaterials with four different aspect ratios on human lung fibroblast cells was investigated by cell viability assay, cytotoxicity assay, apoptosis/necrosis measurement, and reactive oxygen species production. The toxicity increased with decreasing aspect ratio of PANI nanomaterials. In contrast, the highest aspect ratio PANI nanomaterials showed similar results with bulk PANI materials. The adverse effect of PANI nanomaterials was also concentrationand time-dependent. Low aspect ratio PANI nanomaterials induced more necrosis and more reactive oxygen species than others. These results provide new understanding of shape-dependent toxicity of nanomaterials.

Keywords: POLYANILINE NANOMATERIALS; CYTOTOXICITY; CONDUCTING POLYMERS; CELL VIABILITY; REACTIVE OXYGEN SPECIES

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2011.3662

Publication date: 2011-05-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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