Rong An*†, Peng Peng Fan†, Ming Jun Zhou‡, Yue Wang†§, Sunkulp Goel†, Xue Feng Zhou*‡, Wei Li||, and Jing Tao Wang*†
† Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
‡ State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
§ Xiamen Golden Egret Special Alloy Company, Ltd., Xiamen 361021, P. R. China
|| European Bioenergy Research Institute, Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, U.K.