pH-stable hyperbranched poly(ethyleneimine)-maltose films for the interaction with phosphate containing drugs

Maltose-decorated hyperbranched poly(ethyleneimine) is a promising candidate as drug carrier attributed by electrostatic interactions. Here, we report the fabrication of stable hyperbranched poly(ethyleneimine)-maltose (PEI-Mal) films capable of swelling and their features to load and release phosphate containing drugs as being observed by ellipsometric study.