| COVID-19 | Corona Virus Disease 2019 |
| CRE | coffee ring effect |
| CC50 | half maximal cytotoxic concentration |
| CPA | cytopathic action |
| DLVO | Derjaguin-Landau-Verwey-Overbeck theory |
| DONC | dissolved organic natural carbons |
| DLS | dynamic light scattering |
| DDM | dried droplet method |
| EHS | extract humic substances |
| ESIPT | excited state intramolecular proton transfer |
| EDXRF | energy dispersive X-ray fluorescence |
| FA | fluvic acids |
| FBS | fetal bovine serum |
| FRO | ferric chelate reductase |
| GM | growth medium |
| GPM | good manufacturing practice |
| HA | humic acids |
| HS | humic substances |
| HMA | hymatomelanic acid |
| HDR | hydroxychloroquine sulfate |
| IC50 | half maximal inhibitory concentration |
| IHS | insoluble HS |
| HIV-1 | human immunodeficiency virus |
| HSV-1 | simplex virus-1 |
| PDI | polydispersity index |
| IRT | iron transporter |
| IR | infra-red |
| MEM | minimum essential medium (alpha 1X) |
| MTS | vital dye (1-solution methyl thiazolyl tetrazolium) |
| ND | nanodispersions |
| SE | supportive environment |
| SEM | scanning electron microscopy |
| SI | selectivity index |
| SARS-CoV-2 | severe acute respiratory syndrome-related coronavirus 2 |
| SLS | static light scattering |
| SM | supporting medium |
| Spirotox test | Spirostomum Ambiguum Acute Toxicity Test |
| TBEV | tick-borne encephalitis virus |
| TCID50 | 50% tissue culture infectious dose |
| WEHS | water extractable humic substances |
| Vero-E6 | cell culture derived from epithelial buds of African green monkey and transfected with a viral gene |