| abstract |
(57) [Summary]nMicrobeads having a substrate core comprising a hydrophilic substrate and droplets of an active substance incorporated therein, and a secondary layer adjacent to an outer surface of the substrate core. The secondary layer may be hydrogen bonded to the ionic complex or the substrate core surface. A composition comprising microbeads suspended in a solution can be sprayable. The microbeads of the present invention may be tunable by exposing the microbeads to high or low humidity or moisture. |