Radiation-induced chemical evolution of biomolecules

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• 作者：Kazumichi Nakagawa ; Takahiro Matsui ; Yudai Izumi ; Akane Agui ; Masahito Tanaka ; Takayuki Muro
• 关键词：Chemical evolution ; Radiation ; Soft X-ray ; Amino acid ; Circular dichroism ; Natural circular dichroism
• 刊名：Radiation Physics and Chemistry
• 出版年：2009
• 出版时间：December 2009
• 年：2009
• 卷：78
• 期：12
• 页码：1198-1201
• 全文大小：220 K

文摘

Chemical evolution in glycilglycine (Gly2) films irradiated with 146 nm vacuum ultraviolet light was studied. It is found that quantum efficiency of chemical evolution from Gly2 to glycilglycilglycine (Gly3) is smaller than that to glycilglycilglycilglycine (Gly4) due to the multiple step of reaction. Furthermore, we have carried out measurement of soft X-ray natural circular dichroism spectra for serine and alanine films in the energy region of oxygen 1s transition and we report the splitting of 1s→π* transitions.