... Fabrication and properties of pH-sensitive nanostructured polyelectrolyte microparticles loaded with insulin . ... For all studied cases the microparticles showed protective action towards insulin inactivation at acid pH values and protein release at pH > 5 corresponding to the human gastro-intestinal conditions. Moscow University Chemistry Bulletin . 2010, Vol. ... 3, P. 178 . Copyright (C) Chemistry Dept., ... Copyright (C) Chemisty Department of Moscow State University . ...