Low-energy nitrogen ion irradiation can efficiently induce single-, double- strand breaks with the ratio of 6 to 1(DSB/SSB), indicating that DSB may be the main production induced by low-energy heavy ions.
英
美
- 能量為30keV N~+照射干燥的質(zhì)粒DNA能有效的產(chǎn)生單鏈斷裂(SSB)和雙鏈斷裂(DSB),有趣的是兩種斷裂的產(chǎn)額比,即DSB/SSB為6:1,說(shuō)明雙鏈斷裂是低能離子引發(fā)DNA鏈斷裂的主要形式。