ABSTRACT
An important goal of medical diagnosis is the ability to diagnose medical problems rapidly, enabling clinicians to treat patients before any irreversible or long-lasting damage can occur. This can be achieved by point-of-care testing, which ensures fast detection of analytes near to the patient, facilitating a better disease diagnosis, monitoring, and management. It also enables quick medical decisions since the diseases can be diagnosed at an early stage leading to improved health outcomes for the patients and enable them to start early treatment. Nanotechnology has improved the sensitivity and linear ranges of various detection methods improving assessment of the disease onset and its progression and help to plan for treatment of many diseases. Therefore, the development of nanosensors for point-of-care diagnostics is an important area of research. Nanosensors have shown promise as theranostic tools and as nanoprobes for diagnostic imaging, disease monitoring, and the detection of pathogens and can provide real-time information of a patient’s condition which can be of significant benefit. This chapter discusses the current status of innovative nano-sensor arrays for medical diagnosis. Specifically, the chapter discusses various methods used in the development and fabrication of nanosensor arrays and their application in medical diagnosis.
