Simultaneous release of hydrophobic and cationic solutes from thin-film "plum-pudding" gels: A multifunctional platform for surface drug delivery?
The release of two compositionally different solutes from a composite gel composed of two different populations of microgel particles embedded in a single bulk gel matrix is described, showing the potential of the "plum-pudding gel" as a multifunctional platform for controlled surface release. One hydrophobic solute (pyrene) and one hydrophobic and charged solute (rhodamine 123) were chosen as the