Nobel Prize-winning scientist retracts paper bbc.com

A Nobel laureate is being praised for retracting a scientific paper that was not reproducible.
American scientist Frances Arnold, who won the Nobel Prize for chemistry, has retracted her latest paper.

Prof Arnold shared the award with George P Smith and Gregory Winter for their research on enzymes in 2018.

A subsequent paper on enzymatic synthesis of beta-lactams was published in the journal Science in May 2019.