Photonanotechnology for Therapeutics and Imaging surveys major concepts and recent advances in the use of photonanotechnology with nanomaterials reported in various interdisciplinary fields, including chemistry, materials science, biomedical engineering and biomedicine. This book discusses the impact of this technology on the advancement of therapeutic modalities and imaging methods in cancers, infectious diseases and other serious diseases. Photonanotechnology studies the design principle, application and development of photoactive nanomaterials. It applies light-controlled strategies for the development of nanotherapeutics, imaging agents and diagnostic nanodevices.