Observation of salt effects on hydration water of lysozyme in aqueous solution using terahertz time-domain spectroscopy | Zendy

Katsuyoshi Aoki | Zendy; Kentaro Shiraki | Zendy; Toshiaki Hattori | Zendy

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Observation of salt effects on hydration water of lysozyme in aqueous solution using terahertz time-domain spectroscopy

Author(s) -

Katsuyoshi Aoki,

Kentaro Shiraki,

Toshiaki Hattori

Publication year - 2013

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4826699

Subject(s) - aqueous solution , ammonium sulfate , chemistry , salt (chemistry) , lysozyme , sulfate , inorganic chemistry , absorption (acoustics) , ammonium , absorption spectroscopy , spectroscopy , chromatography , materials science , organic chemistry , biochemistry , optics , physics , quantum mechanics , composite material

Terahertz time-domain spectroscopy was used to investigate the salt effect of ammonium sulfate on the dynamics of hydration water of lysozyme in aqueous solution. The absorption coefficient of lysozyme aqueous solutions containing salt was subtracted by that of the water and ammonium sulfate contained in the lysozyme solution. The results revealed that ammonium sulfate increases the absorption coefficient of the hydration water, which indicates that the dynamics of the hydration water becomes faster and/or the number of hydration water molecules decreases with increasing ammonium sulfate concentration

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