【摘 要】
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Hyaluronan may be used in tissue engineering as a scaffold, and since the scaffold should degrade after the cells have proliiferated, and heat treatment is a me
【机 构】
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College of Material Science and Technology,Shanghai Qisheng Biological Material Research Institute
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Hyaluronan may be used in tissue engineering as a scaffold, and since the scaffold should degrade after the cells have proliiferated, and heat treatment is a method to achieve low molecular weight material.In this essay, we developed a new method to choose the characteristic heat treatment temperature, and applied a simple method to prepare the hyaluronan scaffold. We have acquired the TG and DTA curves of hyaluronan by thermal analysis, according to which we selected 310 ℃ ,375 ℃ and 500 ℃ as the heat treatment points. After heat treatment, test the infrared spectrum of the powder respectively. In conclusion, the scaffold formed by lyophilization exhibits a porous structure, and the occurrence of new groups after heating assumes the change of the molecular chain.
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