1. Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, P. R. China
2. School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
3. School of Physics and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
4. Department of Physics and Astronomy, Rowan University, Glassboro, New Jersey 08028, United States
5. Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey 08028, United States
6. Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, New Jersey 08028, United States