Fig. 2.
Chemical and thermal characterization of hybrid constructs (A) ATR-FTIR spectra of PCL SANF, PCL/GEL-SANF and PCL/COL-SANF constructs in the range of 1000–1800 cm−1. (B) Imaging IR of hybrid SANF bundles at t = 0, 1, and 24 h. Red represents highest absorbance (thickest portion of the SANF bundle) while blue represents lowest absorbance (Scale bars: 30 μm). (C) Experimental and curve-fitting ATR-FTIR spectra in the range of 1400–1800 cm−1 of the PCL/COL-75/25 (open circle: experimental points, broken line: fitting results), A: amide II band, B: amide I band, C: crystalline band of carbonyl, D: amorphous band of carbonyl group.
Fig. 2. Chemical and thermal characterization of hybrid constructs (A) ATR-FTIR spectra of PCL SANF, PCL/GEL-SANF and PCL/COL-SANF constructs in the range of 1000–1800 cm−1. (B) Imaging IR of hybrid SANF bundles at t = 0, 1, and 24 h. Red represents highest absorbance (thickest portion of the SANF bundle) while blue represents lowest absorbance (Scale bars: 30 μm). (C) Experimental and curve-fitting ATR-FTIR spectra in the range of 1400–1800 cm−1 of the PCL/COL-75/25 (open circle: experimental points, broken line: fitting results), A: amide II band, B: amide I band, C: crystalline band of carbonyl, D: amorphous band of carbonyl group.
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