Issue 2, 2016

Evaluation of toxicity of nanoclays and graphene oxide in vivo: a Paramecium caudatum study

Abstract

We report here the successful use of a protozoan model organism P. caudatum to investigate the toxicity of clay nanoparticles (montmorillonite, halloysite, kaolin, and bentonite), silica nanospheres and graphene oxide nanoflakes. The distribution of nanoparticles inside the cells was investigated using enhanced dark-field microscopy. Biochemical and behavioural tests were employed to study the viability, vitality, nutrition and oxidative stress induction in ciliate protozoans. The nanoclay particles studied here exhibited very low or no toxicity towards P. caudatum, whereas graphene oxide was toxic.

Graphical abstract: Evaluation of toxicity of nanoclays and graphene oxide in vivo: a Paramecium caudatum study

Article information

Article type
Paper
Submitted
16 Sep 2015
Accepted
13 Jan 2016
First published
14 Jan 2016
This article is Open Access
Creative Commons BY license

Environ. Sci.: Nano, 2016,3, 442-452

Evaluation of toxicity of nanoclays and graphene oxide in vivo: a Paramecium caudatum study

M. Kryuchkova, A. Danilushkina, Y. Lvov and R. Fakhrullin, Environ. Sci.: Nano, 2016, 3, 442 DOI: 10.1039/C5EN00201J

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