Genotoxic evaluation of silver nanoparticles in catfish Clarias gariepinus erythrocytes; DNA strand breakage using comet assay Research Authors Mervat Naguib;Imam Mekkawy;Usama M Mahmoud;Alaa El-Din Hamid Sayed Research Date Thu, 6 Jan 2022 - 12:00 Research Member Alaa El-Din Hamid Sayed Ali