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Smallest channel widths for successful fluid flow for five different commercially available paper types using the foil-backed (all paper types) and non-foil-backed (1 Chr only) technique.
| Paper Type | Smallest Channel Width (µm) |
|---|---|
| FP-50 | 139 ± 8 |
| 3MM Chr | 130 ± 11 |
| 1 Chr (w/o foil) | 106 ± 11 |
| 1 Chr | 103 ± 12 |
| RC-55 | 45 ± 6 |
| NC | 24 ± 3 |
