On May 18, Core Facilities of CEBSIT and CEMPS held an online seminar to discuss the application and prospects of electrooptical technology in different biological samples. Dr.KONG Yu, director of electron microscope core facility, first introduced the application of CLEM technology in brain tissue and nerve cells. Everyone had a lively discussion on plant sample processing methods and related process design. Mr.WANG Xu from CEBSIT, Mr.ZHANG Zhiping and Ms. CAI Wenjuan from electron microscope core facility of CEMPS, and many other colleagues participated in the exchange. This seminar made warm-up preparations for the public technology center to restart its support work in the middle of the year.