A transmucosal delivery device comprising a mucosal permeation enhancing agent and a nanocarrier carrying a biologically active substance are embedded within a colloidal polymer thin film. Such a transmucosal delivery device is intended to deliver the biological active substance to a target location in a two-stage process. First, the colloidal polymer thin film is dissolved when adhered to a mucosal membrane. Once absorbed through the mucosal tissue and into system circulation, the nanocarrier is subject to a number of physiologic effects that will lead to the nanocarrier reaching a target location, such as a target tissue, wherein the biologically active substance dissolves and the biologically active substance payload is released.