1. Fluorescence Imaging Group, Departamento de Física de Materiales, Universidad Autónoma de Madrid, Madrid 28049, Spain
2. Nanobiology Group, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Ctra. Colmenar km. 9.100, Madrid 28034, Spain
3. MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering & Key Laboratory of Micro-systems and Micro-structures, Ministry of Education, Harbin Institute of Technology, 150001 Harbin, People’s Republic of China
4. Grupo de Fotônica e Fluidos Complexos, Instituto de Física, Universidade Federal de Alagoas, 57072-900 Maceió-AL, Brazil
5. Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia
6. Fluorescence Imaging Group, Departamento de Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
7. Fluorescence Imaging Group, Departamento de Fisiología, Facultad de Medicina, Avda. Arzobispo Morcillo 2, Universidad Autónoma de Madrid, 28029 Madrid, Spain