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二维相关红外光谱研究再生蚕丝蛋白膜的构象与温度之间的关系 被引量:12

Investigation on the Conformation Transition of Regenerated Silk Fibroin Films under Thermal Treatment by two dimensional (2D) correlation FT IR spectroscopy
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摘要 通过二维相关红外光谱,研究了再生蚕丝蛋白膜的构象及其转变与温度之间的关系.实验结果表明,将样品从130℃升温到220℃、或在180℃的恒温过程中,丝素蛋白分子链的构象会发生变化,且不同构象对温度升高过程或180℃恒温过程响应的顺序是无规线团变化先于β折叠、α螺旋的形成. With the advantage of two-dimensional (2D) correlation FT-IR spectroscopy, the conformation transition of regenerated silk fibroin film was studied under thermal treatment. The results showed that the conformation changed when the film was heated from 130 to 220 degreesC as well as maintained at 180 degreesC for different time courses. It was also found that the conformation response order was random coil prior to beta-sheet and alpha-helix.
出处 《化学学报》 SCIE CAS CSCD 北大核心 2004年第21期2127-2130,共4页 Acta Chimica Sinica
基金 国家自然科学基金(Nos.50373006 20244005 20274010 20221402) 教育部优秀青年教师资助计划项目.
关键词 二维相关红外光谱 再生蚕丝蛋白膜 构象 桑蚕 二级结构 two-dimensional correlation FTIR spectroscopy Bombyx mori silk protein film
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参考文献19

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