1. Regulatory definition of a nanomedicine

Nanomedicines are partly composed of nanomaterials. They therefore meet the definitions and standards set by the European Union. The European Commission defines nanomaterials as follows:

The recommendation adds that "Any material is to be considered as falling within the definition if it has a specific surface area by volume greater than 60 m ² /cm ³ ". However, any material which, on the basis of its numerical size distribution, constitutes a nanomaterial...