[21p-H135-1~11] Innovation and social implement of THz technologies

[21p-H135-8] Temperature and Hydration Dependence of Low-frequency Dynamics of Proteins Studied by Terahertz Time-domain Spectroscopy

Naoki Yamamoto¹, Kaoru Ohta², Atsuo Tamura¹, 〇Keisuke Tominaga^1,2 (1.Kobe Univ., 2.Kobe Univ. MPRC)

Keywords:terahertz radiation,protein

We studied temperature and hydration dependence of the complex dielectric spectra of a globular protein, lysozyme in the terahertz (THz) frequency region (0.3 – 1.8 THz) by THz time-domain spectroscopy (THz-TDS). Spectral analyses of the complex dielectric spectra were performed in relation to temperature and hydration dependence to understand effects of thermal fluctuations on protein dynamics.