Stimuli responsive drug delivery systems have emerged as one of the most innovative classes of polymer materials of modern materials science. The polymer architectures exhibiting a large change in their physico chemical behaviors in response to minor signals from the environments have fabricated potentially useful materials for pharmaceutical and biomedical applications. The most advanced stimuli responsive drug delivery systems have also explored a new strategy to design targeted delivery systems to treat complex diseases like cancers and related tumors. Stimuli Responsive Drug Delivery Systems offers a convincing approach to understanding the basic principles of drug delivery process, their mathematical modeling, different types of drug delivery systems, various polymer systems responsive to stimuli such as swelling, pH, temperature, electric and magnetic fields, chemical agents, and more - The material covered in this book provides a wide spectrum of information - academic, research, and professional - for the biomedical, pharmaceutical and polymer chemistry communities. The book also presents the commercial scenario of drug delivery systems and highlights upcoming challenges and existing future prospects of this field. An exhaustive bibliography of the book also enables students and researchers of various disciplines to acquire additional information they may require.