About the Authors

Cristina Labate

Affiliations Department of Physics, University of Calabria, Ponte P. Bucci, Cubo 33B, 87036, Rende, Italy, Consiglio Nazionale delle Ricerche, Istituto di Processi Chimico-Fisici, Unit of Support Cosenza, Ponte P. Bucci, Cubo 33B, 87036, Rende Italy

Maria Penelope De Santo

Affiliations Department of Physics, University of Calabria, Ponte P. Bucci, Cubo 33B, 87036, Rende, Italy, Consiglio Nazionale delle Ricerche, Istituto di Processi Chimico-Fisici, Unit of Support Cosenza, Ponte P. Bucci, Cubo 33B, 87036, Rende Italy

Giuseppe Lombardo

Affiliations Consiglio Nazionale delle Ricerche, Istituto di Processi Chimico-Fisici, Viale Stagno D’Alcontres 37, 98158, Messina, Italy, Vision Engineering Italy srl, Via Adda 7, 00198 Rome, Italy

Marco Lombardo

mlombardo@visioeng.it

Affiliation Fondazione G.B. Bietti IRCCS, Via Livenza 3, 00198 Rome, Italy

Competing Interests

The authors have declared that no competing interests exist. Vision Engineering Italy S.r.l did not have any role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. There are no patents, products in development or marketed products to declare. The specific roles of author GL is articulated in the ‘author contributions’ section. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ML GL. Performed the experiments: CL MPD. Analyzed the data: CL MPD GL ML. Contributed reagents/materials/analysis tools: CL MPD GL ML. Wrote the paper: CL MPD GL ML.