上海理工大学 光电信息科学与工程, 上海 200093
文中利用太赫兹时域光谱技术(THz-TDS)检测不同浓度的叔丁醇溶液, 获得在0.3~1.0 THz频谱范围内不同浓度叔丁醇溶液吸收系数的变化曲线, 并通过密堆积模型分析实验结果与理论计算的差异, 对比分析得出: 在参数选择恰当的情况下, 利用THz-TDS技术进行检测并结合数据分析, 可计算出叔丁醇溶液中叔丁醇分子周围的水合数。这些结果对后期分析醇类分子的溶液体系具有重要参考价值。
太赫兹 叔丁醇 水合层 terahertz tert-butyl alcohol solution hydration shell 红外与激光工程
2019, 48(1): 0125006
Author Affiliations
Abstract
1 National-Regional Key Technology Engineering Laboratory for Medical Ultrasound Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging Department of Biomedical Engineering School of Medicine, Shenzhen University Shenzhen 518060, P. R. China
2 Department of Physics, Capital Normal University Beijing 100037, P. R. China
T-rays is sensitive to covalently cross-linked proteins and can be used to probe unique dynamic properties of water surrounding a protein. In this paper, we demonstrate the unique absorption properties of the dynamic hydration shells determined by hemagglutinin (HA) protein in terahertz frequency. We study the changes arising from different concentrations in detail and show that nonlinear absorption coefficient is induced by the dynamic hydration water. The binary and ternary component model were used to interpret the nonlinearity absorption behaviors and predict the thickness of the hydration shells around the HA protein in aqueous phase.
T-rays absorption coefficient hemagglutinin hydration shell Journal of Innovative Optical Health Sciences
2013, 6(4): 1350047
