Since the start of the decade, the coronavirus disease 2019 [COVID-19] pandemic has
disrupted the world's healthcare system. Scientists have been engaged to bring about a therapeutic
agent to help combat the dreaded disease. Many researchers have shown antivirals such as Remdesivir
and Favipiravir to be effective in the treatment; however, these drugs have a short half-life.
Hence, the need for a drug delivery system that could prolong or alter their effect by increasing the
potency of antivirals or vaccines has been proposed. Nanotechnology has always been at the forefront
of developing and diagnosing diseases. The idea of which can be borrowed to treat the novel
coronavirus. The applicability needs to be vast as the disease has spread, and a fast, reliable, effective
therapeutic and diagnostic procedure is the need of the hour. Emphasis on nanotechnology usage
through the intranasal and pulmonary route has been given and various applications have also
been discussed in this review.
Keywords: COVID-19, diagnosis, nanotechnology, antiviral, vaccine, coronavirus.
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