(144h) Design of Encapsulated Systems for Controlled Release

Controlled release of active ingredients (AI) within a defined time frame and under designated conditions continues to be a strong need in several industries including pharmaceuticals, oil recovery, coatings and adhesives. Of the various available controlled release technologies available, encapsulation allows for a flexible means to tailor delivery of the AI. Encapsulant/AI interactions, encapsulation morphology (ex: core-shell, solid matrix, porous matrix etc.), release trigger chemistries, and environment factors all play important roles in determining the ultimate release profile of the AI. In this talk, we will discuss efforts to design needed AI release profiles by characterizing and understanding the complex interactions within a controlled release system. In addition, we will describe the preparation and performance of an example encapsulated AI material tailored to fit application needs.