I am deeply saddened on hearing the passing of Professor Zheng-Yi Wu, one of the most esteemed scientists of our country in the last two centuries. Please convey my heartfelt condolences to the family of Professor Wu.

Henry N.C. Wong

Department of Chemistry
　  Center of Novel Functional Molecules,
　  Institute of Chinese Medicine,
　  Institute of Molecular Functional Materials, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong