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論文
- タイトル
- タイトル(英)
- Elastic modulus of suspended purple membrane measured by atomic force microscopy
- 参照URL
- https://researchmap.jp/read0091842/published_papers/29791062
- 著者
- 著者(英)
- Ari M. Siitonen,Koji Sumitomo,Chandra S. Ramanujan,Youichi Shinozaki,Nahoko Kasai,Kazuaki Furukawa,John F. Ryan,Keiichi Torimitsu
- 担当区分
- 概要
- 概要(英)
- We have probed the mechanical properties of purple membrane (PM) in a physiological environment using the atomic force microscope (AFM). By suspending PM over nano-trenches, the elastic properties of PM can be evaluated free from the interaction with the substrate. Force-displacement curves were obtained on the suspended membrane and the data was compared to that of a simple model of a thin film over a trench. By fitting the data to the model, the elastic modulus of PM was estimated to be 8 MPa. When the membrane is repeatedly indented, we observed a change in the force-distance data consistent with damage to the two-dimensional crystal of PM. In this paper we demonstrate that the AFM allows us to evaluate the mechanics of biological membranes in their native conditions. © 2008 Elsevier B.V. All rights reserved.
- 出版者・発行元
- 出版者・発行元(英)
- 誌名
- 誌名(英)
- Applied Surface Science
- 巻
- 254
- 号
- 23
- 開始ページ
- 7877
- 終了ページ
- 7880
- 出版年月
- 2008年9月30日
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文(学術雑誌)
- ISSN
- 0169-4332
- DOI URL
- https://doi.org/10.1016/j.apsusc.2008.03.009
- 共同研究・競争的資金等の研究課題
研究者
篠﨑 陽一
(シノザキ ヨウイチ)