Book excerpt: Smartphone Based Medical Diagnostics provides the theoretical background and practical applications for leveraging the strengths of smartphones toward a host of different diagnostics, including, but not limited to, optical sensing, electrochemical detection, integration with other devices, data processing, data sharing and storage. The book also explores the translational, regulatory and commercialization challenges of smartphone incorporation into point-of-care medical diagnostics and food safety settings. - Presents the first comprehensive textbook on smartphone based medical diagnostics - Includes a wide array of practical applications, including glucose monitoring, flow cytometry, rapid kit, microfluidic device, microscope attachment, and basic vital sign/activity monitoring - Covers translational, regulatory and commercialization issues