Nanomedicine combines nanotechnology with medicine, offering unprecedented societal and economic potential by leveraging molecular-scale properties. It enables precise characterization of surfaces and interfaces at the nanoscale, and allows for targeted drug delivery, enhanced biocompatibility, and neuroprosthetic applications through advanced chemical approaches. This interdisciplinary field addresses challenges in medicine, particularly due to the aging population and the high socio-economic impact of certain diseases. Nanotechnology is defined as the manipulation of materials at the nanoscale to achieve novel physical, chemical, and biological properties. It includes the development of nanoparticles, nanostructured surfaces, and nanoanalytical techniques for diagnostics, treatment, and theranostics. Nanomedicine aims to apply nanotechnology concepts to medical applications, while nanobiotechnology focuses on basic research at the nanoscale. Unlike conventional therapies, nanomedicine uses biosensors to make smart decisions for targeted treatment. It promises advantages such as faster local processes, direct probing of local properties, and enhanced precision. Personalized Medicine (PM) is a key application of nanomedicine, aiming to tailor treatments based on individual profiles. Nanomedicine also enables the development of integrated medical nanosystems for monitoring and repairing cells. In diagnostics, nanotechnology offers higher sensitivity and selectivity, with applications in molecular imaging, in vitro diagnostics, and real-time monitoring. Techniques like microfluidics, AFM, and SPR are used for single-cell analysis and disease detection. In vivo diagnostics involve targeted imaging using contrast agents like superparamagnetic iron oxide nanoparticles (SPION) and quantum dots. In therapy, nanovectors are used to deliver drugs and imaging agents, overcoming biological barriers and targeting specific tissues. The third generation of nanovectors is designed to efficiently navigate these barriers, improving therapeutic efficacy. Overall, nanomedicine holds great promise for advancing medical diagnostics and treatment, particularly in personalized medicine and early disease detection.Nanomedicine combines nanotechnology with medicine, offering unprecedented societal and economic potential by leveraging molecular-scale properties. It enables precise characterization of surfaces and interfaces at the nanoscale, and allows for targeted drug delivery, enhanced biocompatibility, and neuroprosthetic applications through advanced chemical approaches. This interdisciplinary field addresses challenges in medicine, particularly due to the aging population and the high socio-economic impact of certain diseases. Nanotechnology is defined as the manipulation of materials at the nanoscale to achieve novel physical, chemical, and biological properties. It includes the development of nanoparticles, nanostructured surfaces, and nanoanalytical techniques for diagnostics, treatment, and theranostics. Nanomedicine aims to apply nanotechnology concepts to medical applications, while nanobiotechnology focuses on basic research at the nanoscale. Unlike conventional therapies, nanomedicine uses biosensors to make smart decisions for targeted treatment. It promises advantages such as faster local processes, direct probing of local properties, and enhanced precision. Personalized Medicine (PM) is a key application of nanomedicine, aiming to tailor treatments based on individual profiles. Nanomedicine also enables the development of integrated medical nanosystems for monitoring and repairing cells. In diagnostics, nanotechnology offers higher sensitivity and selectivity, with applications in molecular imaging, in vitro diagnostics, and real-time monitoring. Techniques like microfluidics, AFM, and SPR are used for single-cell analysis and disease detection. In vivo diagnostics involve targeted imaging using contrast agents like superparamagnetic iron oxide nanoparticles (SPION) and quantum dots. In therapy, nanovectors are used to deliver drugs and imaging agents, overcoming biological barriers and targeting specific tissues. The third generation of nanovectors is designed to efficiently navigate these barriers, improving therapeutic efficacy. Overall, nanomedicine holds great promise for advancing medical diagnostics and treatment, particularly in personalized medicine and early disease detection.