Molecular sizes of the sugar and other probe molecules
| Probe molecule | Mol. weight, Da | Mol. diameter, Å, reported | Mol. diameter, Å, estimated* |
| Rhamnose | 164 | 8.2 | 6.9 |
| Mannitol | 182 | 6.7 | 7.2 |
| Lactulose | 342 | 9.5 | 9.7 |
| Cellobiose | 342 | 10.5 | 9.7 |
| Sucralose | 398 | NA | 10.4 |
| Cr-EDTA | 340 | 10.5 | 9.6 |
| Dextran 4 kDa | 4000 | NA | 30.0 |
*Calculated based on the formula: radius=0.33*(MM^0.46).
Å, ångström; Cr-EDTA, chromium complexed with ethylene diamine tetracetic acid, Da, dalton; MM, molecular mass.