Rosalyn S. Yalow

1921 - 2011

Rosalyn S. Yalow (1921–2011) was an American medical physicist renowned for her pioneering work in developing radioimmunoassay (RIA) techniques. She became the co-recipient of the 1977 Nobel Prize in Physiology or Medicine for her groundbreaking research in this field, which revolutionized the diagnosis of various diseases by measuring hormone levels in the blood.