The COVID-19 pandemic has affected the whole world by the spread of a new respiratory virus (SARS-CoV-2), posing a significant burden on the society and the health system. Rapid and selective detection of pathogens, like SARS-CoV-2 virus, in clinical samples, food, water and the environment at large is crucial in diagnosis and breakout prevention. Conventional lab-based biodetection methods lack sensitivity and are expensive, time-consuming, and non-specific in comparison to the newly developed portable biosensors.