John Fenn

John Fenn was an American chemist who developed a technique called electrospray ionization, which allows scientists to analyze large molecules like proteins without destroying them. This breakthrough made it possible to study complex biological molecules in detail, advancing fields like biochemistry and medicine. Fenn’s work earned him the Nobel Prize in Chemistry in 2002. His method revolutionized how molecules are identified and studied, providing new insights into biology and disease research. Despite initial skepticism, his innovation has become a fundamental tool in analytical chemistry.