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. 2018 Mar 28;9:285. doi: 10.3389/fphar.2018.00285

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Copyright © 2018 Puglia, Blasi, Ostacolo, Sommella, Bucolo, Platania, Romano, Geraci, Drago, Santonocito, Albertini, Campiglia, Puglisi and Pignatello.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Field emission-scanning electron microscopy photographs of a fractured particle (PEA-NLC). Insert: enlargement of the fractured particle. Red arrows indicate the nano-compartments.