Financial & competing interests disclosure
This research was funded by MAAT-Nanotecnologie molecolari per la salute dell'uomo e l'ambiente (PON R&C 2007–2013, project's code PON02_00563 _3316357). The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.