With increased interest in the practical use of graphene-based materials, concerns about the remediation of the environmental nanotoxicity of graphene and graphene-related materials have grown. In this study, we report that kaolin nanoclay significantly alleviates the toxicity of graphene oxide in aqueous environments. We employed the Paramecium caudatum protozoan to demonstrate the effects of equal concentrations of kaolin on the remediation of graphene oxide toxicity on survival and growth rates, chemotaxis, galvanotaxis, DNA complexation, and food vacuole formation. Importantly, the toxicity of graphene oxide coagulated with kaolin is reduced without the aggregated particles being removed from the environment.

中文翻译：

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高岭土减轻氧化石墨烯的毒性

随着对基于石墨烯的材料的实际使用的兴趣的增加，对补救石墨烯和与石墨烯相关的材料的环境纳米毒性的关注日益增长。在这项研究中，我们报告说，高岭土纳米粘土可显着减轻氧化石墨烯在水性环境中的毒性。我们采用了草履虫原虫，以证明等浓度的高岭土对氧化石墨烯的毒性修复对存活率和生长率，趋化性，galvanotaxis，DNA络合物和食物液泡形成的影响。重要的是，降低了用高岭土凝结的氧化石墨烯的毒性，而不会从环境中除去聚集的颗粒。