Aser Rothstein

Rothstein, a Canadian Jewish physiologist trained at the University of British Columbia and Rochester, spent his career studying how substances move across biological membranes. He pioneered the use of radioisotopes as tracers in biology and helped identify the protein responsible for anion transport in red blood cells. He later directed the research institute of Toronto's Hospital for Sick Children and won the Gairdner Wightman Award in 1986.