Influence of Alpha and Gamma-Iron Oxide Nanoparticles on Marine Microalgae Species

被引：41

作者：

Demir, Veysel ^{[1
]}

Ates, Mehmet ^{[2
,3
]}

Arslan, Zikri ^{[3
]}

Camas, Mustafa ^{[2
]}

Celik, Fatih ^{[2
]}

Bogatu, Corneliu ^{[4
]}

Can, Safak Seyhaneyildiz ^{[2
]}

机构：

[1] Tunceli Univ, Fac Engn, Dept Environm Engn, TR-62000 Tunceli, Turkey

[2] Tunceli Univ, Fac Engn, Dept Bioengn, TR-62000 Tunceli, Turkey

[3] Jackson State Univ, Dept Chem & Biochem, Jackson, MS 39217 USA

[4] Jackson State Univ, Dept Civil & Environm Engn, Jackson, MS 39217 USA

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2015年 / 95卷 / 06期

基金：

美国国家卫生研究院;

关键词：

Phytoplankton; Alpha and gamma-iron oxide nanoparticles; Nanotoxicity; Marine; ENGINEERED NANOPARTICLES; HEMATITE; MAGHEMITE; TOXICITY; NANO; ZNO;

D O I：

10.1007/s00128-015-1633-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of alpha-iron oxide (alpha-Fe2O3) and gamma-iron oxide (gamma-Fe2O3) nanoparticles (NPs) on marine microalgae species (Nannochloropsis sp. and Isochrysis sp.) were investigated in this study. Both Fe2O3 NPs covered the surface of algae with the agglomerates of the nanoparticles. This form of physical NP toxicity significantly decreased the sizes of phytoplankton. Both NPs were toxic to the tested algal species, while alpha-Fe2O3 showed less toxicity than gamma-Fe2O3 NPs for both algal species. A comparative analysis of growth data of the two algal species treated with alpha-Fe2O3 or gamma-Fe2O3 NPs revealed that Isochrysis sp. are more sensitive than Nannochloropsis sp. Toxicity of these widely used NPs to primary producers forming the base of the food chain in aquatic environments might result in widespread adverse effects on aquatic environmental health.

引用

页码：752 / 757

页数：6

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