Dr. Lamia Bennabi, teacher researcher at the University Ibn Khaldun of Tiaret in Algeria has performed a research visit of 15 days of duration from 24th October to 7th November 2017 at the Chemical and Biomolecular Engineering Department of the University of Cantabria as follow-up of the research collaboration initiated 2 years ago on the preparation and characterization of biocompatible polymer microspheres for controlled drug release.