Observing the Hydration Layer of Trehalose with a Linked Molecular Terahertz Probe.
Observing the Hydration Layer of Trehalose with a Linked Molecular Terahertz Probe.
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用连接分子太赫兹探针观察海藻糖的水化层
DOI:
10.1021/jz500437c
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
N. P. Ernsting
中科院分区:
文献类型:
--
作者:
M. Sajadi;F. Berndt;C. Richter;M. Gerecke;R. Mahrwald;N. P. Ernsting
The terahertz (THz) absorption bands of biomolecular hydration layers are generally swamped by absorption from bulk water. Using the disaccharide trehalose, we show that this limitation can be overcome by attaching a molecular probe. By time-resolving the fluorescence shift of the probe, a local THz spectrum is obtained. From the dependence on temperature and H2O/D2O exchange, it is concluded that the trehalose hydration layer is being observed. The region of dynamic water perturbation by the disaccharide encompasses the probe and is therefore larger than the first two solvation layers.
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DOI:
10.1021/jp112178c
发表时间:
2011
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
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通讯作者:
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影响因子:
3.3
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DOI:
--
发表时间:
1997
期刊:
影响因子:
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作者:
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通讯作者:
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