Over the past 20 years, biosensors have revolutionised the care and management of diabetes and have had important impacts in several other areas of clinical diagnostics. This new book is a completely revised edition of Biosensors - A Practical Approach published in 1990. Edited by two internationally renowned experts in this field, it draws together contributions from active researchers in Europe, North America and Asia. Chapters explain how to implement diverse techniques, such as protein engineering, optical and electrochemical instrumentation and numerical modelling in the context of producing biosensors for both laboratory and commercial applications. The book offers an overview of current research in this area as well as pointers to its further directions. It will be suitable both for those already active in the area who wish to expand their repertoire of experimental tools and for those who are just starting out in biosensor research.