1. Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez, Cupey Campus, San Juan, PR 00926, USA
2. Materials Characterization Center Inc., Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, USA
3. Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936, USA
4. Nanomaterials Research Group, Department of Natural Sciences and Technology, Universidad Ana G. Méndez, Gurabo Campus, Gurabo, PR 00778, USA
5. Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00925, USA
6. Department of Applied Physics, Autonomous University of Madrid and Instituto de Ciencia de Materiales Nicolás Cabrera, 28049 Madrid, Spain
7. IFToMM-ARoTMM, Bucharest Polytechnic University, 060042 Bucharest, Romania