Newcomers to the field of biopharmaceuticals require an understanding of the basic principles and underlying methodology involved in developing protein- and nucleic acid-based therapies for genetic and acquired diseases. Introducing the principles of polymer science and chemistry, this book delineates the basic biology required for understanding how biomaterials can be used as drug-deliver vehicles. No book to date combines a discussion of high-tech biomaterials-based delivery of protein and nucleic acid drugs with the pharmaceutical or biocompatibility aspects. Leading experts from around the world discuss the physiochemical parameters used for design, development, and evaluation of biotechnological dosage forms for delivery of proteins, peptides, oligonucleotides, and genes. The book includes coverage biological barriers to extravasation and cellular uptake of proteins and nucleic acids.