The moving boundary method of studying the electrophoresis of proteins. (Nova Acta Reg. Soc. Scient. Upsaliensis, IV, 7, No. 4.)

Tilesius's doctoral dissertation introduced the laboratory technique of moving-boundary electrophoresis, a technique for separation of chemical compounds by electrophoresis in free solution.

For this work, and the work published in entries 12831, 12832, and 2576.8, Tilesius received the 1948 Nobel Prize in Chemistry "for his research on electrophoresis and absorption analysis, especially for his discoveries concerning the complex nature of serum proteins."

(Thanks to Juan Weiss for this reference and its interpretation.)