A Study on structural changes of amino acids implanted with low energy ions by FTIR spectroscopy

doi:null

您当前的位置：

首页 >

文章列表页 >

A Study on structural changes of amino acids implanted with low energy ions by FTIR spectroscopy

更新时间：2021-03-12

- A Study on structural changes of amino acids implanted with low energy ions by FTIR spectroscopy
- NUCLEAR TECHNIQUES Issue 4, (2000)
- 作者机构：
  
  清华大学,北京,100084
- 作者简介：
- 基金信息：
  
  国家自然科学基金!19874034
- DOI：
  CLC： Q691
- Published：01 April 2000
- 稿件说明：
移动端阅览
[1]张冬梅,孙素琴,马志龙,陈国强,崔福斋.低能离子束辐照氨基酸结构变化的傅立叶变换红外光谱法研究[J].核技术,2000(04):213-218.

A Study on structural changes of amino acids implanted with low energy ions by FTIR spectroscopy[J]. Nuclear techniques, 2000, (4): 213-218.
[1]张冬梅,孙素琴,马志龙,陈国强,崔福斋.低能离子束辐照氨基酸结构变化的傅立叶变换红外光谱法研究[J].核技术,2000(04):213-218. DOI：

A Study on structural changes of amino acids implanted with low energy ions by FTIR spectroscopy[J]. Nuclear techniques, 2000, (4): 213-218. DOI：

摘要

利用傅立叶变换红外光谱（ＦＴＩＲ）法研究了３０ｋｅＶ的Ｎ

＋

离子束辐照引起氨基酸结构的变化。结果表明：经相同剂量Ｎ

＋

离子束辐照后，天冬氨酸（Ａｓｐ）和苯丙氨酸（Ｐｈｅ）的基团有相似的变化规律，即羧酸根离子（ＣＯＯ）的Ｖ

Ｃ

＝Ｏ伸缩振动(分别为１６４６ｃｍ

－１

和１６２６ｃｍ

－１

)均增强，ＮＨ３

＋

的谱峰(分别主要为１５１７ｃｍ

－１

和１５６０ｃｍ

－１

)强度均减弱。Ｐｈｅ较Ａｓｐ中的基因强度变化更明显。随注入剂量增加，Ａｓｐ的各基团相对浓度呈规律性变化。同时对产生上述变化的原因进行了探讨，并对较高剂量辐照时Ａｓｐ的分解产物进行了初步分析。

Abstract

The structural changes of aspartic acid （Asp） and phenylalanine （Phe） implanted with N

ions of 30keV were studied using Fourier transform infrared （FTLR） spectroscopy. Implanted at the same fluence of 1×10

/cm

similar phenomena were observed in both Asp and Phe

i.e.

the relative intensities of NH

vibration decreased and those of COO

stretching vibration increased. The changes of absorption intensities in Phe were more obvious than those in Asp. It was also observed that the intensities of COOH

COO

and NH

groups of Asp changed regularly with increasing implantation fluences. The possible reasons responsible for these results were studied. The radiolysis products of Asp implanted at a higher fiuence of 6×10

/cm

were analyzed.

关键词

Keywords

references

Views

142

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Radiation tolerance of the charge measurement ASIC for the ASO-S HXI spectrometer

Radiation effects on single cell by synchrotron radiation soft X-ray

An experimental study on total dose effects in SRAM-based FPGAs

FTIR and Raman spectra of ion irradiated and annealed 4H-SiC

Research on effect of electron radiation on paper

Related Author

HU Yiming

ZHANG Yongqiang

ZHANG Yan

GUO Jianhua

WAN Qiang

陈亮

ZHANG Wenrui CHEN Liang JIANG Shiping YAN Jingwen XU Songxiu

蒋诗平

Related Institution

University of Science and Technology of China

Purple Mountain Observatory, Chinese Academy of Sciences

National Synchrotron Radiation Laboratory, University of Science and Technology of China

Northwest Institute of Nuclear Technology

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000, China) 2

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：880886 Visits Today：413

⁰