Prof. Leyong Wang gives an oral communication and host one session at the 4th International Conference on Molecular Sensors and Molecular Logic Gates (MSMLG2014) chaired by Prof. Xuhong Qian, and Prof. He Tian ( Dr. Dahui Qu as Secretary General) at East China Univ. of Science and Technology (ECUST), 9-12 Nov. 2014.