Table 1.
Overview of the HIPEs prepared and printed in this study.
| Varied parameter | Monomer in aqueous phase [% (w/w)] | Surfactant in organic phase [% (w/w)] | Aqueous phase volume fraction [% (v/v)] | Nozzle diameter (μm) | |
|---|---|---|---|---|---|
| HIPE A | — | 14 | 12 | 87.5 | 250 |
| HIPE variations | Monomer | 10.5 | 12 | 87.5 | 250 |
| 7 | 12 | 87.5 | 250 | ||
| 3.5 | 12 | 87.5 | 250 | ||
| 1.75 | 12 | 87.5 | 250 | ||
| 0 | 12 | 87.5 | 250 | ||
| Surfactant | 14 | 9 | 87.5 | 250 | |
| 14 | 6 | 87.5 | 250 | ||
| Aqueous phase | 14 | 12 | 90 | 250 | |
| 14 | 12 | 85 | 250 | ||
| 14 | 12 | 82.5 | 250 | ||
| 14 | 12 | 80 | 250 | ||
| Nozzle diameter | 14 | 12 | 87.5 | 840 | |
| 14 | 12 | 87.5 | 110 |
The table shows the mass fraction of monomer in the internal aqueous phase, the surfactant mass fraction in the external organic phase, the aqueous phase volume fraction and the nozzle diameter used for printing hollow cylinders for activity assays. All variations are derived from HIPE A (blue). Parameters deviating from HIPE A are highlighted in orange.