A seminar on biological and environmental materials was held on Dec. 17th of 2013 at the meeting room of SCS. Almost 30 representatives from Biological and Environmental Materials Committee of SCS and other relevant group members of SCS attended this seminar. The associate research fellow, Mr. Zhai was invited to give the lecture“Talking about maintenance of blood vessels and biological materials”. Professor Jing was also invited to present the lecture “Intelligent air conditioning material by hydrothermal synthesis method and waste material recycling". After the lectures, the attendees warmly discussed with the two scientists.