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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Biomaterials. 2014 Jan 15;35(10):3243–3251. doi: 10.1016/j.biomaterials.2013.12.081

Table 1.

Spinning parameters for different hydrogel microfibers.

Hydrogel Composition Spinning Solution Concentration (wt%) Crosslinking Method Crosslinking Condition
Alginate 0.75–3.0% Alginate
0.1–0.4% PEG		 Ionic crosslinking 25–100 mM CaCl2
Fibrin + Alginate 0.67–2.0% Fibrin
0.25–2.5% Alginate
0.1–0.2% PEG		 Enzymatic & ionic crosslinking 5 U/ml thrombin
50 mM CaCl2
Gelatin + Alginate 1.0–3.2% Gelatin
0.24–0.86% Alginate
0.40–1.0% Irgacure		 Ionic & UV-crosslinking 50 mM CaCl2
0.50% Irgacure
10 min UV at 365 nm
Hyaluronic Acid + Alginate 1.0–2.0% HA
1.5% Alginate
0.1–0.4% PEG		 Ionic & Michael-Addition crosslinking 1% PEGDA & 50 mM CaCl2

All hydrogel microfibres were spun at 3–5 kV electrical potential and collected in a receiving bath spun at 25–80 rpm.