Ernst Chain

1906–1979 · Germany / UK · Biochemist of the penicillin project.

Contribution

Key member of the Oxford penicillin team with Howard Florey: isolation, chemical characterization, and development of penicillin as a therapeutic agent (1940s).

Why It Still Matters

Highlights that antibiotics are chemistry + biology + manufacturing — not only a Petri-dish story. Nobel Prize 1945 with Fleming and Florey.

Active Recall

  1. What was Chain’s role relative to Fleming and Florey?
  2. Name the year of their shared Nobel Prize.