TY - JOUR TI - Genotoxicity of Two Nanoparticles: Titanium Dioxide and Zinc Oxide AB - Nanoparticles (NPs) and nanoparticle-based materials have been increasingly used in various consumer and medical applications. However, investigations have disclosed that some NPs may generate toxic effects in different cell types and organisms. In this study, the cytotoxic and genotoxic potential of titanium dioxide $(TiO_2)$ and zinc oxide (ZnO) NPs were examined by using four genotoxicity tests, chromosome aberrations-CAs, sister chromatid exchange-SCE, micronucleus-MN, and comet, in human lymphocytes in vitro. The results showed that both NPs significantly increased the frequency of aberrant cells, CA/Cell, SCE, and DNA damage, and decreased mitotic index in some treatments. These results demonstrated that $TiO_2$ and ZnO NPs induce genotoxic effects. Therefore, more detailed in vitro and in vivo experiments should be conducted for the safe usage of both NPs. AU - DEMIRTAS KORKMAZ, FUNDA AU - SULUDERE, ZEKIYE AU - YÜZBAŞIOĞLU, DENİZ AU - UNAL, FATMA AU - Erol, Ozlem DO - 10.35378/gujs.826911 PY - 2021 JO - Gazi University Journal of Science VL - 34 IS - 4 SN - 2147-1762 SP - 948 EP - 958 DB - TRDizin UR - http://search/yayin/detay/1137920 ER -