Work

Nickel Oxide Nanoparticles Induce Oxidative Stress and Morphological Changes on Marine Chlorella vulgaris

Year: 2014

Type: article

Abstract: The status of oxidative stress of marine Chlorella vulgaris was investigated via measuring the content of H2O2, MDA, SOD and CAT in cells after 72h NiO nanoparticles (nNiO) exposure. Morphological changes of algal cells were also determined by transmission electron microscopy (TEM). The results showed that nNiO induced the ROS generation and stimulated the antioxidant defense system of algae. Significant increases (p < 0.01) in MDA level and SOD activity were found after 72h 10 mg L-1 nNiO treatment. H2O2 content and CAT activity also increased under higher concentration treatments although non-significant. The disruption of plasma membrane and the disordered thylakoid lamella of algal cells were found under nNiO exposure, which indicated cell morphological changes. Our results implied that oxidative damage was one of toxic causes of nanoparticles on algae. It also indicates the potential impacts on aquatic biota by nanomaterials.

Source: Advanced materials research

DOI: 10.4028/www.scientific.net/amr.955-959.956

Authors: Ning Gong, Kui Shuang Shao, Guang Yao Li, Ye Qing Sun

Institutions: Dalian Maritime University, National Marine Environmental Monitoring Center

Language: English

Topic: Environmental Toxicology and Ecotoxicology

Subfield: Health, Toxicology and Mutagenesis

Field: Environmental Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, State Oceanic Administration, Fundamental Research Funds for the Central Universities

OpenAlex ID: W2074652174

FWCI: 0.196

Cites: 21

Cited by: 4

Related to: 10