• 文献标题:   Graphene-Based Nanomaterials in Soil: Ecotoxicity Assessment Using Enchytraeus crypticus Reduced Full Life Cycle
  • 文献类型:   Article
  • 作  者:   MENDONCA MCP, RODRIGUES NP, DE JESUS MB, AMORIM MJB
  • 作者关键词:   graphene oxide, reduced graphene oxide, terrestrial environment, survival, reproduction, hatching succes
  • 出版物名称:   NANOMATERIALS
  • ISSN:   2079-4991
  • 通讯作者地址:   Univ Estadual Campinas
  • 被引频次:   4
  • DOI:   10.3390/nano9060858
  • 出版年:   2019

▎ 摘  要

Graphene-based nanomaterials (GBNs) possess unique physicochemical properties, allowing a wide range of applications in physical, chemical, and biomedical fields. Although GBNs are broadly used, information about their adverse effects on ecosystem health, especially in the terrestrial environment, is limited. Therefore, this study aims to assess the toxicity of two commonly used derivatives of GBNs, graphene oxide (GO) and reduced graphene oxide (rGO), in the soil invertebrate Enchytraeus crypticus using a reduced full life cycle test. At higher exposure concentrations, GO induced high mortality and severe impairment in the reproduction rate, while rGO showed little adverse effect up to 1000 mg/kg. Collectively, our body of results suggests that the degree of oxidation of GO correlates with their toxic effects on E. crypticus, which argues against generalization on GBNs ecotoxicity. Identifying the key factors affecting the toxicity of GBNs, including ecotoxicity, is urgent for the design of safe GBNs for commercial purposes.