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固定化无机结合肽AG4（NPSSLFRYLPSD）仿生制备银微晶体
  • ISSN号：0251-0790
  • 期刊名称：《高等学校化学学报》
  • 时间：0
  • 分类：O614.1[理学—无机化学;理学—化学] O646[理学—物理化学;理学—化学]
  • 作者机构：[1]北京化工大学生命科技学院, [2]北京化工大学材料科学与工程学院,北京100029
  • 相关基金：国家自然科学基金（批准号：50433040）资助.
作者： 张旭[1], 陈劲春[1], 杨鹏[2], 杨万泰[2]
关键词： 无机结合肽, PET膜, 银微晶, 分子仿生, Inorganic-binding peptides, PET film, Silver Micro-crystallite, Molecular biomimetics
中文摘要：

利用固定化的AG4进行了离体仿生制备银微晶的研究．受静电力推动，正离子化的PET-N（CH3）2膜表面吸附了AG4，AG4／PET-N^＋（CH3）：膜经AgN03溶液浸泡后，用SEM观测发现了大小为1～2μm的银微晶体，其多数呈三角形和正方形．经XPS检测，银微晶体的Ag3d结合能为368．1eV（Ag^0的Ag3d结合能标准值为368．2eV），同时还测得硝酸银的Ag3d结合能为368．6eV．由此推断，固定化后的AG4在离体条件下能将AgNO3溶液中的Ag^＋还原为Ag^0,对Ag^＋在AG4／PET-N（CH3）2膜上还原并形成微晶体的机理进行了初步分析和探讨．

英文摘要：

AG4（NPSSLFRYLPSD） is a peptide that specifically and selectively binds to silver resulting from Dr. Stony＇s phage display peptide combination library. The peptides that have similar characteristic are defined as inorganic-binding peptides. In our experiment, AG4 was adsorbed on the surface of protonated PETN （ CH3 ） 2 film for studying its biomineralization behavior in vitro. Based on the XPS results of both silver crystallite on AG4/PET-N^＋ （ CH3 ） 2 film and AgNO3 salt, we approved that Ag^＋ exactly reduced to Ago and further formed silver crystallites. In addition, the images of SEM revealed that silver crystallite was 1-2 μm in size with a square shape and a in this process. triangular shape. At last, we discussed the reaction mechanism possibly occurring in this process.

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期刊信息
  • 《高等学校化学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中华人民共和国教育部
  • 主办单位:吉林大学 南开大学
  • 主编：周其凤
  • 地址：吉林大学南胡校区
  • 邮编：130012
  • 邮箱：cjcu@jlu.edu.cn
  • 电话：0431-88499216
  • 国际标准刊号：ISSN：0251-0790
  • 国内统一刊号：ISSN：22-1131/O6
  • 邮发代号:12-40
  • 获奖情况:
  • 首届及第二届国家期刊奖,连续两届“百种中国杰出学术期刊”,中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:50676