Pharmacoengineering and molecular pharmaceutics deals with ways to deliver and maintain the desired amount of a therapeutic agent at a target site for a desired period of time. This discipline has been and continues to be crucial for turning a new molecular entity into a safe and effective medication. Current research involves improving the efficacy and delivery of a broad range of therapeutic agents, including biologicals such as proteins, antibodies, oligonucleotides, genes, and cell-based therapies.