60-Second Video: The Effects of Anatase Titanium Dioxide on Regeneration in Dugesia tigrina

Hi, my name is Maha Ali and I'll be talking about my project: The Effects of Anatase Titanium Dioxide Nanopowder on Regeneration in Dugesia tigrina To start off, I was putting on my makeup one day when I wanted to know what the main ingredient was and that was Titanium Dioxide and that Titanium Dioxide was labeled as a possible carcinogen and it is used daily in cosmetics, sunscreen, toothpaste, and paint at the same time I was studying regeneration which is the process of regrowth an as humans we regrow our liver and skin cells and starfish, hydra, and planarian regrow their limbs I used Planarian as my model organism because it's a great organism to see macroscopic effects I had an experimental group and a control group in my control group all I fed was a hard-boiled egg yolk and in my experimental group I fed both the Titanium Dioxide and the egg yolk So after 3 weeks I decided to decapitate them. And I was measuring them daily I saw that there was a massive change between the different lengths The control groups lengths were increasing while the experimental groups was decreasing I came to a conclusion that TiO2 can possibly have an effect on the Planaria and have an effect on us Today I still look for products that don't and do use TiO2