Wenguo Cui, PhD, is a Professor at the Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, as well as group leader of Regenerative Biomaterials. He has worked extensively on the development of novel biomaterials and nanomaterials for tissue regeneration, drug delivery, and disease treatment, and his awards and honors include the Fundamental Bone Research Scholar award from the Chinese Medical Association and the Huaxia Medicine Award, among many others. Lei Xiang is a doctoral candidate in medicine at the Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. His research concerns novel biomaterials and nanomaterials for tissue regeneration, as well as treatment for sports medicine diseases.