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Probing local lipid dynamics at the picosecond timescale with the Bicout mode
https://repo.qst.go.jp/records/83183
https://repo.qst.go.jp/records/83183d042163e-3f92-4b9a-8f94-0afa5118c7a9
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-05-19 | |||||
| タイトル | ||||||
| タイトル | Probing local lipid dynamics at the picosecond timescale with the Bicout mode | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Cisse, Aline
× Cisse, Aline× Tatsuhito, Matsuo× J. Bicout, Dominique× Peters, Judith× Tatsuhito, Matsuo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Lipid membranes are at the basis of cell organization. Understanding their functionality, in the light of their structure and dynamics is then crucial. Using quasi-elastic neutron scattering (QENS), it is possible to access picosecond timescale dynamics. However, since years, only few models addressed the question of local lipid dynamics, whereas the increase of the neutron flux and data quality called for novel general models. Based on a timescale separation approach from Wanderlingh et al (2014), the Bicout model re-introduces the main local motions presented in the 80s by Pfeiffer et al, but writes them all in a unique framework that requires few hypotheses. Among others are described motions of the whole lipid, like its rotation, diffusion within the membrane, or in- out-of-the-plane dynamics. In addition, it makes a distinction between the head and the tail dynamics. Here, we would like to present a quantitative and complete study of local lipid dynamics on standard DMPC membranes. We probed the effects of known features such as the main phase transition, membrane geometry, or direction of motions, and proved the application of this new model. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 13th European Biophysics Congress | |||||
| 発表年月日 | ||||||
| 日付 | 2021-07-24 | |||||
| 日付タイプ | Issued | |||||
