Table 1. Characterization of cylindrical modules over time: Module length, diameter and cell density characterized immediately and 5 days after fabrication (mean±Standard error of the mean is indicated).
| 1000 μm diameter modules | 750 μm diameter modules (batch 1) | 500 μm diameter modules (batch 1) | |
| Mold diameter (μm) | 1000 | 750 | 500 |
| Mold length (μm) | 800 | 500 | 500 |
| Diameter measured immediately after Fabrication (μm) | 1750±12 (n = 69) | 890±10 (n = 75) | 600±7 (n = 71) |
| Length measured immediately after Fabrication (μm) | 925±75 (n = 6) | 595±20 (n = 25) | 540±19 (n = 18) |
| Diameter measured after day 7 (μm) | 565±11 (n = 96) | 280±7 (n = 66) | 170±6 (n = 60) |
| Length measured after day 7 (μm) | 460±11 (n = 70) | 210±6 (n = 41) | 265±12 (n = 32) |
| Volume of 1 module immediately after fabrication (cm3) | 22×10−4 | 37×10−5 | 16×10−5 |
| Volume of 1 module immediately after 5 days in culture (cm3) | 12×10 −5 | 13×10−6 | 61×10−7 |
| Cell density immediately after fabrication based on seeding density (cells/cm3) | 2×106 | 2×106 | 2×106 |
| Cells density in modules after 7 days (cells/cm3) * | 17±3×106 | 84±5×106 | 23±1×107 |
*Cell density in modules at day 5 was calculated by manually counting the number of cells per module and then dividing that number by the volume of one module calculated using the dimension measurements given in the table.