纳米铜粉对浮游植物生长的影响

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Abstract

Nanomaterials have wide applications in the fields of medicine, environment protection and biology engineering. However, there is little study on the safety of nanomaterials in these applications. In this paper, Senedesmus obliquus, Chlorella ellipsoidea, Tetraselmis tetrathele are used as experimental materials to study the effects of Copper nanoparticles and Copper powder on the growth of microalge. The result shows that different size of Copper particles affected the growth of the microalgae differently. High concentration of Copper particles decreased the cell density and Chla contents of the microalgae, at of 2.0mg·L^-1 concentration. Copper nanoparticle can restrain microalge growth completely. The endurance of Chlorella ellipsoidea is the weakest, most of Chlorella ellipsoidea under the 1.3mg·L^-1 Copper nanoparticle were killed, the toxicity of Copper nanoparticle is significantly stronger than Copper powder(p<0.05), Senedesmus obliquus under the concentration of 33.3mg·L^-1 and 333.3mg·L^-1 Copper powder or Chlorella ellipsoidea under the concentration of 83.3mg·L^-1 Copper powder can grow slowly, but the Senedesmus obliquus-1 Copper nanoparticle or Chlorella ellipsoidea at the level of 8.3mg·L^-1 Copper nanoparticle and 833.3mg·L^-1 Copper powder are almost killed completely.

Key words： Copper nanoparticle Copper powder Senedesmus obliquus Chlorella ellipsoidea Tetraselmis tetrathele

Received: 25 April 2007

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	Articles by authors
	FU Feng
	LIU Zhen-qian
	CHEN Chuan-hong

Cite this article:

FU Feng,LIU Zhen-qian,CHEN Chuan-hong. Pilot study about effects of Copper nanoparticle on phytoplankton growth[J]. , 2007, 26(2): 126-130.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2007/V26/I2/126

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