1. Research Center for Biosensor and Nanotheranostic School of Biomedical Engineering Health Science Center Shenzhen University Guangdong 518060 P. R. China
2. Beijing Key Laboratory for Bioengineering and Sensing Technology Research Center for Bioengineering and Sensing Technology School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing 100083 P. R. China
3. Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou 510640 China