Article 166 chemistry 161 controlled study 114 nonhuman 100 metabolism 79 unclassified drug 72 human 68 Humans 59 drug effect 51 genetics 41 Animals 38 animal 38 isolation and purification 33 pH 31 procedures 31 chemical structure 28 Fourier transform infrared spectroscopy 27 enzymology 27 SARS-CoV-2 26 protein expression 26 chitosan 24 enzyme activity 24 infrared spectroscopy 24 mouse 24 binding affinity 23 cellulose 23 in vitro study 23 Cellulose 22 molecular docking 22 physical chemistry 22