Fig. 10From: Layer-by-layer assembled polymeric thin films as prospective drug delivery carriers: design and applicationsCoumarin-6 release profile from (bPEI/BCM), (GO/BCM), and (bPEI/BCM/GO/BCM) films in PBS buffer containing ethanol (2:1 PBS/EtOH) at a pHÂ 7.4 and b pHÂ 2. (Reprinted with permission from Ref. [32]. Copyright 2016, Nature)Back to article page