Specialist in Genetics, Radio&Photobiology. Main line of investigation is "Fundamentals & applications of DNA damage and repair" has been conducted into three different fields: 1. Prospection of novel radiosensitising agents for adjuvant use in radiotherapy against breast cancer; 2. Validation of molecular markers of DNA repair & genetic instability to improve diagnosis/therapeutics for Brazilian cancer patients; 3. Survival of extremophiles against extraterrestrial environments (Astrobiology).