Title :
Hydration water in protein-salt aqueous solutions observed by THz-TDS
Author :
Aoki, Kazuo ; Shiraki, Kazuyuki ; Hattori, Toshihiro
Author_Institution :
Univ. of Tsukuba, Tsukuba, Japan
Abstract :
We studied salt effects on hydration water of protein using terahertz time-domain spectroscopy (THz-TDS). The number of hydration water molecules at the protein surface was observed to decrease by addition of ammonium sulfate, while ammonium thiocyanate increases it.
Keywords :
biochemistry; molecular biophysics; proteins; solvation; terahertz wave spectra; time-domain analysis; water; THz-TDS; ammonium sulfate; ammonium thiocyanate; hydration water molecules; protein surface; protein-salt aqueous solutions; salt effects; terahertz time-domain spectroscopy; Absorption; Frequency measurement; Ions; Proteins; Spectroscopy; Time-domain analysis; Water;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665582
