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氧在银／半胱氨酸螺旋纳米带形成中的作用
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：TQ465[化学工程—制药化工]
  • 作者机构：[1]中国科学院长春应用化学研究所,长春130022, [2]中国科学院大学,北京100049, [3]国家纳米科学中心,北京100190
  • 相关基金：国家杰出青年科学基金（21025310）、国家自然科学基金（20973047,91027011）和国家重点基础研究发展计划（2009CB930401）资助
作者： 张绪刚[1,2], 牛利[1], 唐智勇[3]
关键词： 密度泛函理论模拟, Ag(I)/Cysteine螺旋纳米带氧, 半胱氨酸, 银离子, density functional theory （DFT） simulation, Ag（I）/Cysteine helical nanobelts, oxygen, Cysteine, Ag ion
中文摘要：

使用量子力学密度泛函理论（DFT）模拟分析了银离子（Ag（I））和半胱氨酸（Cysteine）分子在碱性水溶液中的反应行为．研究发现，银离子与半胱氨酸上的巯基优先配位；在银／半胱氨酸（Ag（I）／Cysteine）螺旋纳米带生长过程中，氧起到了关键的作用，它使半胱氨酸部分氧化，释放了部分银离子配位位置，促成了Ag-S（R）链的成长，为后续螺旋纳米带生长奠定了基础．

英文摘要：

Density functional theory simulations were used to analyze the action of Ag（I） ions and cysteine in alkaline solution. It was found that Ag（I） ions coordinate to the thiol groups of cysteine, and oxygen plays a key role in the growth of Ag（I）/Cysteine helical nanobelts. Oxygen can oxidize the thiol groups and free some of the coordination positions of Ag（I）. This results in the growth of Ag-S（R） chains, and the subsequent growth of Ag（I）/Cysteine helical nanobelts. This research method may be useful when it is applied to solving other similar problems.

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792