Table 1.
Summary of the microrheological properties (viscosity and elastic moduli) of the continuous phase of Newtonian fluid and viscoelastic regions, region diameters and percentage area occupied by viscoelastic regions per 0.064 mm2 field of view.
| measured parameter | site | n (replicates) | median | IQR |
|---|---|---|---|---|
| continuous Newtonian phase viscosity (mPa · s) | ileum < 20 | 50 | 1.68 | 1.34–2.18 |
| ileum > 20 | 66 | 1.35 | 1.14–1.85 | |
| colon < 20 | 2 | 3.18–5.22a | ||
| colon > 20 | 16 | 2.94 | 2.67–4.16 | |
| viscoelastic regions elastic moduli (Pa) | ileum < 20 | 19 | 0.036 | 0.017–0.085 |
| ileum > 20 | 10 | 0.077 | 0.023–0.13 | |
| colon < 20 | 11 | 0.22 | 0.032–0.42 | |
| colon > 20 | 20 | 0.03 | 0.01–0.19 | |
| viscoelastic regions diameter (µm) | ileum < 20 | 12 | 25.1 | 22.2–40 |
| ileum > 20 | 14 | 27.8 | 22.7–53 | |
| colon < 20 | 12 | 48.4 | 34.1–52.9 | |
| colon > 20 | 8 | 33.8 | 23.5–54 | |
| percentage of area occupied by viscoelastic regions per 0.064 mm2 field of view | ileum < 20 | 12 | 0.78 | 0.6–2 |
| ileum > 20 | 14 | 0.85 | 0.6–1.1 | |
| colon < 20 | 12 | 2.9 | 1.4–3.5 | |
| colon > 20 | 8 | 1.4 | 0.7–3.7 | |
aA range is given for this site as there were insufficient values for the calculation of median and IQR. It is included for comparison with other viscosity values.