The effect of MWCNT chirality on the binding efficiency of SARS-CoV-2 virus was studied with respect to two different essential components of the SARS-CoV-2 structure i.e.6LU7 (COVID-19 main protease) and 6LZG (spike receptor-binding domain complexed with its receptor ACE2). The gene discussed is ACE2; the disease is COVID-19.