Characterizing hydration state in solution using terahertz time-domain attenuated total reflection spectroscopy

被引：139

作者：

Arikawa, Takashi ^{[1
]}

Nagai, Masaya ^{[1
]}

Tanaka, Koichiro ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 457卷 / 1-3期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.cplett.2008.03.062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We propose a novel method to characterize hydration states from dielectric responses of solutions in terahertz (THz) frequency region. Hydration states can be evaluated quantitatively from a complex dielectric function derived from a theory with a local field correction. We demonstrated this method in disaccharide (sucrose and trehalose) water solutions using the THz time-domain attenuated total reflection (TD-ATR) spectroscopy. The method successfully evaluates the hydration state and its concentration dependence, providing a new tool to investigate the picosecond dynamics of hydration directly. (C) 2008 Elsevier B.V. All rights reserved.

引用

收藏

页码：12 / 17

页数：6

相关论文

共 39 条

[1] MEASUREMENTS OF OPTICAL-CONSTANTS OF LIQUID H2O AND D2O BETWEEN 6 AND 450 CM-1 [J].

AFSAR, MN ;

HASTED, JB .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1977, 67 (07) :902-904

[2] Tetrahedral displacement: The molecular mechanism behind the Debye relaxation in water [J].

Agmon, N .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (03) :1072-1080

[3]

[Anonymous], 2003, SENSING TERAHERTZ RA

[4]

[Anonymous], 2005, FEYNMAN LECT PHYS

[5] DIELECTRIC SPECTRA OF SOME COMMON SOLVENTS IN THE MICROWAVE REGION - WATER AND LOWER ALCOHOLS [J].

BARTHEL, J ;

BACHHUBER, K ;

BUCHNER, R ;

HETZENAUER, H .

CHEMICAL PHYSICS LETTERS, 1990, 165 (04) :369-373

[6] α,α-trehalose/water solutions.: 5.: Hydration and viscosity in dilute and semidilute disaccharide solutions [J].

Branca, C ;

Magazù, S ;

Maisano, G ;

Migliardo, F ;

Migliardo, P ;

Romeo, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (41) :10140-10145

[7] Solute-induced retardation of water dynamics probed directly by terahertz spectroscopy [J].

Heugen, U. ;

Schwaab, G. ;

Bruendermann, E. ;

Heyden, M. ;

Yu, X. ;

Leitner, D. M. ;

Havenith, M. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (33) :12301-12306

[8]

Hill N. E., 1969, Dielectric Properties and Molecular Behaviour

[9] Destructive interference effect on surface plasmon resonance in terahertz attenuated total reflection [J].

Hirori, H ;

Nagai, M ;

Tanaka, K .

OPTICS EXPRESS, 2005, 13 (26) :10801-10814

[10] Attenuated total reflection spectroscopy in time domain using terahertz coherent pulses [J].

Hirori, H ;

Yamashita, K ;

Nagai, M ;

Tanaka, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2004, 43 (10A) :L1287-L1289

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