Investigation of Thermal Denaturation of Solid Oxytocin by Terahertz Dielectric Spectroscopy
The International Symposium on Photonics and Optoelectronics(SOPO 2014)——We investigate the thermal denaturation of solid oxytocin using terahertz time domain spectroscopy(THz-TDS). When the peptide is heated up from 25℃ to 107℃and cooled down to 25℃ again, an irreversible decrease in its THz absorption coefficient and refractive index is observed. The corresponding the frequency-dependent permittivity during heating is fitted by the Debye model with single relaxation time. The relaxation times during temperature rising agree very well with Arrhenius equation with the activation energy of 3.12kJ/mol as an indicator for its thermal denaturation difficulty.
关键词： 太赫兹介电谱 催产素 热变性 The International Symposium on Photonics and Optoelectronics(SOPO 2014)
主讲人：A.P. Xiaojie Yang 机构：Centre for THz Research of China Jiliang University
时长：0:08:52 年代：2014年
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