Trends and perspectives in DNA biosensors as diagnostic devices

Despite the civilization and technological development, taking care of health based on early diagnostics is still challenging. Currently, cancer accounts for more than 20% of all deaths. Cancer mortality dramatically rises every year because of poor diagnosis at the late stage and inefficiency of conventional methods for early-stage cancer detection. That is why there is a demand for automated, inexpensive, miniaturized, and portable testing devices with real-time response, high sensitivity, and selectivity for early medical diagnostics but also for screening air and water. DNA biosensors have excellent predispositions and are a significant promise to become a powerful tool used in prevention and monitoring of diseases, rationalization of the way of medical treatment, and improving the patient quality of life.