Fabrication of Porous Gelatin Microfibers Using an Aqueous Wet Spinning Process

Figures & data

Figure 1.  Apparatus of wet spinning process. An aqueous solution containing 2.45 mg/ml gelatin and 1.5 wt% alginate was loaded in the syringe and extruded into the coagulation bath (2%w/v CaCl₂).

Figure 2.  Photo of alginate/gelatin fiber obtained from wet spinning with draw ratio of 3.14.

Figure 3.  Wet spinning fiber of gelatin/alginate seen under optical microscope (from draw ratio of 3.14).

Figure 4.  The surface structure of gelatin wet spinning fiber (draw ratio 3.14): (a) before, and (b) after alginate extraction.

Figure 5.  Comparison of the amperometric currents of glucose enzyme electrodes with and without gelatin fibers as base materials in responding to the various glucose concentrations. The biosensor sensitivities were 0.85 µA/cm²mM (with gelatin fibers) and 0.26 µA/cm²mM (without gelatin fibers).