1. College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China
2. Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
3. College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Shandong Normal University, Jinan 250014, China