Physical concepts nanotechnology and applications in the biomedical realm. Different approaches to nanotechnology: Fabrication and functionalization of metallic and semiconductor nanomaterials used in biomedical applications. Bioplasmonics: concept of plasmon, Mie theory, nanophotothermy and therapeutic applications. Optical nano-sensors: theory and application of plasmonics, biosensors based on surface plasmon resonance. Biomedical nanophotonics: quantum dots, laser nano-surgery. Biomedical nano-magnetism: properties of magnetic nanomaterials and applications in biodetection, imaging and therapy. Ethics and social impact of biomedical nanotechnologies.