Teacher of the Department of Chemistry Eshchanov Khushnudbek held a scientific-theoretical seminar on "Crystal structures of silk fibroin." The seminar presented the results of the analysis of the crystalline parts of fibroin fiber obtained from the fibrous waste of silk. In addition, the results of X-ray phase analysis of the crystal structures of hydrolyzed fibroin samples obtained from silk fiber wastes were presented. Many questions were asked on the topic of the seminar and positive answers were given. The main conclusions of the seminar were announced.