Jie Li is a specially-appointed associate researcher in the Ministry of Education Key Lab. of RF Circuits and Systems, School of Electronics and Information Engineering, Hangzhou Dianzi University, China. He obtained his Ph.D. degree from Zhejiang University, China. He has extensive experience in (1) parity-time symmetry, wireless sensing system, iontronic sensors, and their applications in bioelectronics. He published over 30 science citation index (SCI) journal papers (including Nat. Comm., Chem.Eng.J., ACS Nano,...) and has been invited to participate in numerous domestic and international academic conferences and deliver invited presentations.