Nanotoxicity of Graphene Oxide-Gold Nanohybrid to Daphnia magna

被引：3

作者：

Akere, Taiwo Hassan ^{[1
,2
]}

de Medeiros, Aline Maria Zigiotto ^{[3
,4
]}

Martinez, Diego Stefani T.

Ibrahim, Bashiru ^{[1
,2
]}

Ali-Boucetta, Hanene ^{[2
]}

Valsami-Jones, Eugenia ^{[1
]}

机构：

[1] Univ Birmingham, Coll Life & Environm Sci, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, England

[2] Univ Birmingham, Coll Med & Dent Sci, Sch Pharm, Nanomed Drug Delivery & Nanotoxicol NDDN Lab, Birmingham B15 2TT, England

[3] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083100 Campinas, SP, Brazil

[4] Univ Sao Paulo, Ctr Nucl Energy Agr CENA, BR-13416000 Piracicaba, SP, Brazil

来源：

AQUATIC TOXICOLOGY | 2023年 / 260卷

基金：

巴西圣保罗研究基金会;

关键词：

Ecotoxicity; Nanoparticles; Nanosafety; Nanobiotechnology; BIOACCUMULATION; NANOCOMPOSITES; TOXICITY;

D O I：

10.1016/j.aquatox.2023.106552

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The expanding use of hybrid nanomaterials in many applications necessitates evaluation of their environmental risks. This study investigates the acute toxicity and bioaccumulation of graphene oxide - gold (GO-Au) nano -hybrid in neonates (<24 hrs old) of Daphnia magna after exposure to a wide range of concentrations (1-100 mg/ L). No significant mortality or immobilisation was observed after the exposure period. Microscopic observation showed an uptake of the nanohybrid and internal damage in the gut of the exposed organisms. Bioaccumulation of the GO-Au nanohybrid also occurred in a concentration-dependant manner. Continuous evaluation of the environmental risks from exposure to this nanohybrid and other advanced materials is imperative to avert disruption to the ecosystem.

引用

页数：4

共 26 条

[1] Synthesis and Characterisation of a Graphene Oxide-Gold Nanohybrid for Use as Test Material [J].