Carcinogenesis, Teratogenesis & Mutagenesis ›› 2010, Vol. 22 ›› Issue (4): 302-304.doi: 10.3969/j.issn.1004-616x.2010.04.013

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Ames test of nano TiO2 and nano ZnO

MA Mao-cai1;HUANG Ping1;YAN Hui2;TAO Yun1;DENG Ya-bin1;LI Dong-Hui1   

  1. 1.Cancer Research Center, Medical College, Xiamen University, Xiamen 361005; 2. People's Hospital of Haizhu, Guangzhou 510220, Guangdong, China
  • Received:2010-01-25 Revised:2010-04-21 Online:2010-07-30 Published:2010-07-30
  • Contact: LI Dong-hui

Abstract: OBJECTIVE: To study the potential mutagenicity of two photocatalytic nanomaterials, nano TiO2 and nano ZnO. METHODS: In the plate incorporation test of Salmonella typhimurium, the average colony number of spontaneous revertants of TA97, TA98, TA100, TA102 were set at 5 concentrations. RESULTS: The colony number of revertants for the materials tested did not increase with statistical significance, compared with that of spontaneous revertants. The results of Ames test for the two kinds of nanoparticle were negative. CONCLUSION: The results imply that the two kinds photocatalytic nanomaterials tested did not show potential mutagenicity.

Key words: photocatalytic nanomaterials, Ames test, mutagenicity, nano titanium dioxide, nano zinc oxide

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