  Current situation of COVID-19 demands a rapid, reliable, cost-effective,
facile detection strategy to break the transmission chain and biosensor has
emerged as a feasible solution for this purpose. Introduction of nanomaterials
has undoubtedly improved the performance of biosensor and the addition of
graphene enhanced the sensing ability to a peerless level. Amongst different
graphene-based biosensing schemes, graphene field-effect transistor marked its
unique presence owing to its ability of ultrasensitive and low-noise detection
thereby facilitating instantaneous measurements even in the presence of small
amounts of analytes. Recently, graphene field-effect transistor type biosensor
is even successfully employed in rapid detection of SARS-CoV-2 and this
triggers the interest of the scientific community in reviewing the current
developments in graphene field-effect transistor. Subsequently, in this
article, the recent progress in graphene field-effect transistor type
biosensors for the detection of the virus is reviewed and challenges along with
their strengths are discussed.
