Electrogenerated chemiluminescence (ECL) is a powerful and versatile analytical technique, which is widely applied for biosensing and successfully commercialized in the healthcare diagnostic market. After introducing the fundamental concepts, this book will highlight the recent analytical applications with a special focus on immunoassays, genotoxicity, imaging, DNA and enzymatic assays. The topic is clearly at the frontier between several scientific domains involving analytical chemistry, electrochemistry, photochemistry, materials science, nanoscience and biology. This book is ideal for graduate students, academics and researchers in industry looking for a comprehensive guide to the different aspects of electrogenerated chemiluminescence.