Assertion: collagen's property | /r/HasProperty | maintained after supercritical drying process
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Source sentences:
text: I peak of collagen, suggesting that chemical properties of collagen were maintained even after the supercritical drying process and that biological properties of the biopolymer might have been maintained, and peaks at 1240 cm-1, 1340 cm-1, 1408 cm-1, and 3408 cm-1 related to functional groups of GO .