Foton-7 Kashtan experiment

The sample holder of the Russian Kashtan facility for separating biologically active materials. It was used for ESA's protein crystallisation experiment aboard the Foton-7 mission launched from the northern Plesetsk cosmodrome on 4 October 1991 for 16 days. The experiment was quite successful; for full details see N.E. Chayen, Protein Engineering, volume 9, number 10, pages 927-929, 1996. [Image Date: 1991] [91.05.022-001]