These micrographs of crystals show substances closely related to pepsin and chymotrypsin, enzymes that are active in digestion. John Northrop managed in 1929 to produce a pure crystal form of these enzymes. His studies revealed that they are proteins.
The photographs were donated to the Nobel Prize Museum by the Northrop family in 2009.
This passport was issued to John Northrop for his trip to Sweden in December 1946 to attend Nobel Prize award ceremony.
The passport was donated to the Nobel Prize Museum by John Northrop’s family in 2009.
This inkstand belonged to John Northrop.It includes an inkwell, which was used to store ink during writing with a quill or dip pen.
The inkstand was donated to the Nobel Prize Museum by the Northrop family in 2009.
This microscope belonged to John Northrop. It was made by the distinguished microscope maker Joseph Zentmayer in Philadelphia.
The microscope was donated to the Nobel Prize Museum by the Northrop family in 2009.
This small microscope belonged to John Northrop. who probably used it when he was young. Northrop spent his entire life dedicated to chemistry, in which he made ground-breaking discoveries on proteins.
This microscope, which belonged to John Northrop, was made by the distinguished microscope maker Joseph Zentmayer in Philadelphia. This model was patented in 1876. Northrop was born in 1891 and was likely given the microscopes when he was young. Perhaps he inherited it from his father, a zoologist who died tragically in an explosion two weeks before his son’s birth. John Northrop dedicated his entire life to chemistry, making ground-breaking discoveries on proteins.
The microscopes were donated to the Nobel Prize Museum by the Northrop family in 2009.
