| Original Articles |
|
|
|
|
Influence of Low-Energy Ion Irradiation on Plasma Membrane Permeability of Cells |
| ZHANG Dong-Mei1;CUI Fu-Zhai1;SUN Su-Qin2;LIN You-Bo1;TIAN Min Bo1;CHEN Guo-Qiang3
|
| 1Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
2Analysis Center, Tsinghua University, Beijing 100084
3Department of Biological Science and Biotechnology Tsinghua University, Beijing 100084
|
|
| Cite this article: |
|
ZHANG Dong-Mei, CUI Fu-Zhai, SUN Su-Qin et al 2000 Chin. Phys. Lett. 17 61-63 |
|
|
|
Abstract Effect of low-energy ion irradiation on plasma membrane permeability has been investigated by using electron spin resonance (ESR) spectroscopy of spin probe technique. The investigated system is plumule cells of wheat (Tkiticum aestivum L.) seeds implanted by 30keV N+ ions. ESR spectra indicated that plasmalemma permeability is sensitive to low-energy ion irradiation. Ion irradiations with increasing fluences up to semi-lethal dose lead to gradual increase in plasmalemma permeability of the plumule cells. The possible factors relevant to the changes in membrane permeability are discussed in relation to the changes in the physical state and chemical nature of membranes.
|
| Keywords:
87.50.-a
87.16.-b
|
|
|
Published: 01 January 2000
|
|
| PACS: |
87.50.-a
|
(Effects of electromagnetic and acoustic fields on biological systems)
|
| |
87.16.-b
|
(Subcellular structure and processes)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
