Understanding the importance of nanosciences in diabetes is problematic as some texts can be too technical for the novice. This book uses a reader-friendly format suitable not only for practitioners but newcomers as well. It begins with general aspects of nanotechnology and nanomedicine in diabetes. It then discusses glucose and glucose sensors based on functional nanocomposites before moving on to a discussion of insulin and the use of nanoprobes to monitor cell processes in the pancreas. Finally, it explores drugs and other treatments, including second-generation sulfonylurea glipizide loaded biodegradable nanoparticles and nanoparticle-mediated delivery of angiogenic inhibitors in diabetic retinopathy.