1. Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, United States
2. Department of Bioinformatics, School of Medical Technology and Engineering, Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350122, P. R. China
3. School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, P. R. China
4. Institute of Modern Physics, Northwest University, and Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi’an, Shaanxi 710127, P. R. China
5. Key Laboratory of Environmental Friendly Function Materials, Ministry of Education, and College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China