Table 1.
Comparison of different surfaces with different contact angles and long life of SARS-CoV-2 and SARS-CoV-1.
| Surface | Long life (hour) |
Contact angle (◦) | |
|---|---|---|---|
| SARS-CoV-2 | SARS-CoV-1 | ||
| Copper | 4 (Van Doremalen et al., 2020b) | 8 (Van Doremalen et al., 2020b) | θ < 90° (“The Wettability of Industrial Surfaces: Contact Angle Measurements and Thermodynamic Analysis,” 1985) |
| Plastic | 72 (Van Doremalen et al., 2020b) | 72 (Van Doremalen et al., 2020b) | θ > 90° (Bourges-Monnier and Shanahan, 1995) |
| Paper | 3–5 | – | θ < 90°(Liukkonen, 2006) |
| Stainless steel | 48 (Van Doremalen et al., 2020b) | 48 (Van Doremalen et al., 2020b) | θ = 50° (Bernardes et al., 2010) |