2010 Fiscal Year Final Research Report
Surface Science and Cellular Physiology using atom beams
| Project/Area Number |
20200054
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Thin film/Surface and interfacial physical properties
Cell biology
|
|---|
| Research Institution | Osaka Prefecture University |
|---|
Principal Investigator |
UMEZAWA Kenji Osaka Prefecture University, 総合教育研究機構, 教授 (80213487)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
MIYAMOTO Kensuke 大阪府立大学, 総合教育研究機構・理学系研究科, 教授 (10209942)
KATO Mikio 大阪府立大学, 理学系研究科, 准教授 (30204499)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 原子散乱 / 表面構造解析 / 細胞生理学 |
|---|
| Research Abstract |
This study describes a low-energy atom scattering system that was combined with a time-of-flight spectrometer for insulator surface structural analysis. Insulator surface structure is difficult to study because of the charging effects during electron or ion-beam bombardment. Our designed equipment has less than 0.1 Å spacing resolution. The effects of a high-energy proton beam applied to single E. coli cells in liquid culture medium were evaluated based on the activity of a flagellum motor and on cell growth. Average ion fluence needed to stop the flagellum motor of the tethered cells was 2.0×10^<12> protons/cm^2, which approximately corresponds to 60 kGy.
|
