Hanaa L. Essa is chemist at Agricultural research centre and research assistant of Chemistry department at the American University in Cairo. She received her BSc. (2008) in Chemistry and Biochemistry with honors degree and her MSc. (2014) degree in organic chemistry from Helwan University. The co-author of publications.her current research interests involve Optimization of the extraction conditions of marine species. She received PhD in 2021 extraction of bioactive compounds to use as bestside alternative and test there phytotoxicity of crops have correlated to food security. Synthetic of materials for water treatment.