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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2003, Vol. 27> Issue(5) : 460-464 

Research on Molecular Modification of L(+)-Cysteine Induced by 110 keV Fe+ Ion Beam Irradiation

  •  Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2 School of Bio-Sciences, Lanzhou University, Lanzhou 730000, China

  • Fe+ ions with the energy of 110 keV were implanted into films of L(+)-cysteine. FTIR, UV VIS spectrometry and 1H- NMR analysis of the irradiated samples prove that some of the original bio-molecules were seriously damaged and significant modifications were induced. ESR analysis shows that a kind of long life radical was formed in the irradiated samples. The results of ESI-FTMS analysis further supports the molecular modification induced by low-energy ion beam irradiation. The radiation effects are closely connected with the energy deposition in solid L(+)-cysteine samples.
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    [1] . HUANG Wei-Dong et al.Chemical Physics,1998,237:223—2312. CAI Xi-Chen,WEI Zeng-Quan,LI Wen-Jian et al.Chin. J .Anal.Chem.,1999,27(8):869(in Chinese)(蔡喜臣,卫增泉,李文建等.分析化学,1999,27(8):869)3. LIANG Jian-Ping,WEI Zeng-Quan,ZHANG Li et al.J.Radiat.Res.Radiat.Proces.,1999,17(1):24(in Chinese)(梁剑平,卫增泉,张力等.辐射研究与辐射工艺学报,1999,17(1):24)4. Foti A M,Milano F,Torrisi L.Nucl.Instru. Meth.,1990,B46:3615. Rydberg B.Int.Radiat.Biol.,1985,47(1):57 6. SHAO Chun-Lin,BI Qiang,YU Zeng-Liang.Nucl.Tech.,1994,17(1):25(in Chinese)(邵春林,毕强,余增亮.核技术,1994,17(1):25)7. YUAN Shi-Bin,WEI Zeng-Quan,GAO Qing-Xiang.Chin.Sci.Bull.,2002,47(8):672 8. Harding M M,Long H A.Acta Cryst.,1968,B24:10969. YU Zeng-Liang,SHAO Chun-Lin.Radiat.Phys.Chem.,1994,43(4):34910. ZHANG Dong-Mei,SUN Su-Qin,MA Zhi-Long et al.Nucl.Tech.,2000,23(4):213(in Chinese)(张冬梅,孙素琴,马志龙等.核技术,2000,23(4):213)11. YUE Song.Chem.Res.Appl.,2000,12(4):387(in Chinese)(岳松.化学研究与应用,2000,12(4):387)12. ZHENG Rong-Liang.Radical Biology.Beijing:Higher Edu.Press,1992,9(in Chinese)(郑荣梁.自由基生物学.北京:高等教育出版社,1992,9)13. Ziegler J F,Biersack J P,Littmark U.The Stopping and Range of Ions in Solids.Pergamon:New York,1985 14. ZHANG Gui-Zhu,WANG Yue-Mei,ZHAO Peng et al.Rare Metals,1998,22(1):55(in Chinese)(张贵珠,王月梅,赵鹏等.稀有金属,1998,22(1):55)15. HAN Jian-Wei,YU Zeng-Liang.Nucl.Tech.,1999,22(4):200(in Chinese)(韩建伟,余增亮.核技术,1999,22(4):200)

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YUAN Shi-Bin, WEI Zeng-Quan, LI Wen-Jian and GAO Qing-Xiang. Research on Molecular Modification of L(+)-Cysteine Induced by 110 keV Fe+ Ion Beam Irradiation[J]. Chinese Physics C, 2003, 27(5): 460-464.
YUAN Shi-Bin, WEI Zeng-Quan, LI Wen-Jian and GAO Qing-Xiang. Research on Molecular Modification of L(+)-Cysteine Induced by 110 keV Fe+ Ion Beam Irradiation[J]. Chinese Physics C, 2003, 27(5): 460-464. shu
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Received: 2002-05-29
Revised: 1900-01-01
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Research on Molecular Modification of L(+)-Cysteine Induced by 110 keV Fe+ Ion Beam Irradiation

    Corresponding author: YUAN Shi-Bin,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2 School of Bio-Sciences, Lanzhou University, Lanzhou 730000, China
  • Received Date: 2002-05-29
  • Accepted Date: 1900-01-01
  • Available Online: 2003-05-05

Abstract: Fe+ ions with the energy of 110 keV were implanted into films of L(+)-cysteine. FTIR, UV VIS spectrometry and 1H- NMR analysis of the irradiated samples prove that some of the original bio-molecules were seriously damaged and significant modifications were induced. ESR analysis shows that a kind of long life radical was formed in the irradiated samples. The results of ESI-FTMS analysis further supports the molecular modification induced by low-energy ion beam irradiation. The radiation effects are closely connected with the energy deposition in solid L(+)-cysteine samples.

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