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WELCH AWARD
Early in his career, according to the Welch Foundation, McConnell developed theoretical methods for relating NMR data to the structure of molecules. He then modified the equations governing NMR to include the effects of chemical reactions and thus was able to measure the speed at which reactions take place. After arriving at Stanford in 1964, McConnell turned his attention to biological problems. It was there, the foundation says, that he introduced a method called spin labels, in which electron and NMR spectra are used to study the structure and kinetics of proteins and lipids. And he showed how to measure the movement of molecules through and within membranes in the laboratory--a technique that proved applicable to living cells. McConnell earned a B.S. in chemistry from George Washington University, Washington, D.C., in 1947 and a Ph.D. in physical chemistry from California Institute of Technology in 1951. Following postdoctoral work at the University of Chicago, he worked for Shell Development Co. in Emeryville, Calif., before joining the Caltech faculty in 1956. The prize plus a gold medal will be presented at a banquet in Houston in October. |
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