A plaque has been placed on the laboratory to commemorate the work of Dorothy Hodgkin, the Nobel prize-winning Oxford scientist and tutor of Margaret Thatcher.

Dorothy HodgkinThe Royal Society of Chemistry has awarded a National Historical Chemical Landmark status to Oxford University's Inorganic Chemistry Laboratory in South Parks Road. This is only the second landmark to be awarded by the society in Britain and is to commemorate major developments in chemistry.

The plaque went on the outside of the building at a ceremony on Monday night.

Prof Hodgkin, who died in 1994, carried out work which led to the synthesis of penicillin, vitamin B12 and insulin.

Read more about Dorothy Hodgkln and other famous Oxfordshire people of the past in our Past Livessection