Table 2 Composition and properties of common mixes used in this study

From: Cell-guiding microporous hydrogels by photopolymerization-induced phase separation

Mix No.

nPVA %

DS %

Light int. [mW/cm2]

Pore size [μm]a

G′ [Pa]e

G″ [Pa]e

G″/G′e

0

2.0

-

20

NAc

62.5 ± 2.0

1.1 ± 0.07

0.018 ± 0.001

1

2.0

2.5

20

3

111.4 ± 5.0

0.68 ± 0.12

0.006 ± 0.001

2

2.0

3.0

20

7

162.2 ± 3.6

0.75 ± 0.03

0.005 ± 0.0002

3b

2.0

1.0

20

18

4249 ± 1063d

94.2 ± 38.9d

0.022 ± 0.004d

4

3.0

-

10

NAc

1474 ± 281.2

2.95 ± 0.57

0.002 ± 0.0003

5

3.0

2.5

10

3

1755 ± 472.5

6.81 ± 2.59

0.004 ± 0.001

6

3.0

3.0

10

14

242.3 ± 51.30

4.50 ± 1.55

0.019 ± 0.008

  1. aDetermined by RIFFT of confocal imaging data after gel swelling.
  2. b5% gelatin was added to enhance the viscosity of the resin.
  3. cNo pores detected.
  4. dBefore incubation at 37 °C (prior to gelatin release).
  5. eG′, G″, and G″/G′ are the plateau values after 5 min of UV irradiation.
  6. 0.05% LAP, UV-365nm light irradiation, PEG-2-SH crosslinker for a thiol:ene ratio of 1.6
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