Elastic incoherent neutron scattering on systems of biophysical interest:: Mean square displacement evaluation from self-distribution function

被引：23

作者：

Magazu, Salvatore ^{[1
,2
]}

Maisano, Giacomo ^{[1
,2
]}

Migliardo, Federica ^{[1
,2
]}

Benedetto, Antonio ^{[2
]}

机构：

[1] Univ Messina, CNISM, I-98166 Messina, Italy

[2] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2008年 / 112卷 / 30期

关键词：

D O I：

10.1021/jp711930b

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：

In the present work an operational recipe for the mean square displacement (MSD) determination, highlighting the connection between the self-distribution function and average statistical values, is presented. The determination of the MSD and of its contributions associated with different mechanisms, together with their thermal behavior, is performed by evaluating the self-distribution function derived by elastic incoherent neutron scattering (EINS). The approach is tested on EINS data collected by the backscattering spectrometer IN13 (ILL, Grenoble, France) on two model systems such as dry myoglobin in trehalose and poly(ethylene glycol) with mean molecular weight M(w) = 400 (PEG 400).

引用

页码：8936 / 8942

页数：7

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