Neutron spectroscopy on protein solutions employing backscattering with an increased energy range
(2019) In Physica B: Condensed Matter 562. p.31-35- Abstract
Novel cold neutron backscattering spectrometers contribute substantially to the understanding of the diffusive dynamics of proteins in dense aqueous suspensions. Such suspensions are fundamentally interesting for instance in terms of the so-called macromolecular crowding, protein cluster formation, gelation, and self-assembly. Notably, backscattering spectrometers with the highest flux can simultaneously access the center-of-mass diffusion of the proteins and the superimposed internal molecular diffusive motions. The nearly complete absence of protein-protein collisions on the accessible nanosecond observation time scale even in dense protein suspensions implies that neutron backscattering accesses the so-called short-time limit for the... (More)
Novel cold neutron backscattering spectrometers contribute substantially to the understanding of the diffusive dynamics of proteins in dense aqueous suspensions. Such suspensions are fundamentally interesting for instance in terms of the so-called macromolecular crowding, protein cluster formation, gelation, and self-assembly. Notably, backscattering spectrometers with the highest flux can simultaneously access the center-of-mass diffusion of the proteins and the superimposed internal molecular diffusive motions. The nearly complete absence of protein-protein collisions on the accessible nanosecond observation time scale even in dense protein suspensions implies that neutron backscattering accesses the so-called short-time limit for the center-of-mass diffusion. This limit is particularly interesting in terms of a theoretical understanding by concepts from colloid physics. Here we briefly review recent progress in studying protein dynamics achieved with the latest generation of backscattering spectrometers. We illustrate this progress by the first data from a protein solution using the backscattering-and-time-of-flight option BATS on IN16B at the ILL and we outline future perspectives.
(Less)
- author
- Beck, Christian ; Appel, Markus ; Grimaldo, Marco ; Roosen-Runge, Felix LU ; Zhang, Fajun LU ; Frick, Bernhard ; Schreiber, Frank and Seydel, Tilo
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Aqueous protein solutions, Cold neutron backscattering, Self-diffusion
- in
- Physica B: Condensed Matter
- volume
- 562
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85062953084
- ISSN
- 0921-4526
- DOI
- 10.1016/j.physb.2018.11.058
- language
- English
- LU publication?
- yes
- id
- cbefabb4-6060-4dcf-bfbf-a2d2401f3e90
- date added to LUP
- 2019-03-25 12:24:42
- date last changed
- 2022-04-18 03:32:21
@article{cbefabb4-6060-4dcf-bfbf-a2d2401f3e90,
abstract = {{<p>Novel cold neutron backscattering spectrometers contribute substantially to the understanding of the diffusive dynamics of proteins in dense aqueous suspensions. Such suspensions are fundamentally interesting for instance in terms of the so-called macromolecular crowding, protein cluster formation, gelation, and self-assembly. Notably, backscattering spectrometers with the highest flux can simultaneously access the center-of-mass diffusion of the proteins and the superimposed internal molecular diffusive motions. The nearly complete absence of protein-protein collisions on the accessible nanosecond observation time scale even in dense protein suspensions implies that neutron backscattering accesses the so-called short-time limit for the center-of-mass diffusion. This limit is particularly interesting in terms of a theoretical understanding by concepts from colloid physics. Here we briefly review recent progress in studying protein dynamics achieved with the latest generation of backscattering spectrometers. We illustrate this progress by the first data from a protein solution using the backscattering-and-time-of-flight option BATS on IN16B at the ILL and we outline future perspectives.</p>}},
author = {{Beck, Christian and Appel, Markus and Grimaldo, Marco and Roosen-Runge, Felix and Zhang, Fajun and Frick, Bernhard and Schreiber, Frank and Seydel, Tilo}},
issn = {{0921-4526}},
keywords = {{Aqueous protein solutions; Cold neutron backscattering; Self-diffusion}},
language = {{eng}},
pages = {{31--35}},
publisher = {{Elsevier}},
series = {{Physica B: Condensed Matter}},
title = {{Neutron spectroscopy on protein solutions employing backscattering with an increased energy range}},
url = {{http://dx.doi.org/10.1016/j.physb.2018.11.058}},
doi = {{10.1016/j.physb.2018.11.058}},
volume = {{562}},
year = {{2019}},
}