“…For instance, the purified alginic acid does not inhibit SARS-CoV-2, but it may bind to SARS-CoV-2 3CLpro and effectively impede the binding of SARS-CoV-2 -S1 protein with ACE2 (IC 50 56.06 µg/mL) and thus have the potential to block SARS-CoV-2 infection. Serrano-Aroca et al (2021) advocated the use of alginate-based biomaterials for the management of COVID-19 [207]. Indeed, these biomaterials exhibited antiviral activity against a wide range of viruses, including the HIV-1 [208][209][210], hepatitis A, B, and C viruses [210][211][212][213], Sindbis virus [213], RABV [214], rubella virus [215], influenza virus [216], HSV-1 and 2 [74,76,77,101,213,217], poliovirus type 1 [213,218], potato virus X [219], tobacco mosaic virus [220,221], and murine norovirus [211,212].…”