• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Enhanced Fluorescence for Bioassembly by Environment- Switching Doping of Metal Ions
【24h】

Enhanced Fluorescence for Bioassembly by Environment- Switching Doping of Metal Ions

机译：通过环境离子交换掺杂金属离子增强生物组装的荧光

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The self-assembly of cyclodipeptides composed of natural aromatic amino acids into supramolecular structures of diverse morphologies with intrinsic emissions in the visible light region is demonstrated. The assembly process can be halted at the initial oligomerization by coordination with zinc ions, with the most prominent effect observed for cyclo-dihistidine (cyclo-HH). This process is mediated by attracting and pulling of the metal ions from the solvent into the peptide environment, rather than by direct interaction in the solvent as commonly accepted, thus forming an "environment-switching" doping mechanism. The doping induces a change of cyclo-HH molecular configurations and leads to the formation of pseudo "core/shell" clusters, comprising peptides and zinc ions organized in ordered conformations partially surrounded by relatively amorphous layers, thus significantly enhancing the emissions and allowing the application of the assemblies for ecofriendly color-converted light emitting diodes. These findings shed light into the very initial coordination procedure and elucidate an alternative mechanism of metal ions doping on biomolecules, thus presenting a promising avenue for integration of the bioorganic world and the optoelectronic field.
机译：证明了由天然芳香族氨基酸组成的环二肽自组装成具有可见光内在发射的各种形态的超分子结构。通过与锌离子配位，可以在初始低聚时停止组装过程，其中环二组氨酸（cyclo-HH）的作用最为明显。该过程是通过将金属离子从溶剂中吸引并拉到肽环境中来进行的，而不是通过通常公认的在溶剂中的直接相互作用来进行，从而形成“环境转换”掺杂机制。掺杂会引起环-HH分子构型的变化，并导致形成假“核/壳”簇，其中包含肽和锌离子，这些肽和锌离子以有序构象组织，部分被相对无定形的层包围，从而显着增强了发射并允许应用用于环保型颜色转换的发光二极管的组件。这些发现为最初的配位程序提供了亮点，并阐明了在生物分子上掺杂金属离子的另一种机制，从而为生物有机世界与光电领域的整合提供了一条有希望的途径。

著录项

  • 来源
    《Advanced Functional Materials》 |2020年第10期|1909614.1-1909614.10|共10页
  • 作者

  • 作者单位

    Tel Aviv Univ George S Wise Fac Life Sci Sch Mol Cell Biol & Biotechnol IL-6997801 Tel Aviv Israel;

    Texas A&M Univ Artie McFerrin Dept Chem Engn College Stn TX 77843 USA;

    Univ Macau Inst Appl Phys & Mat Engn Joint Key Lab Minist Educ Ave Univ Taipa Macau Peoples R China;

    Lanzhou Univ Key Lab Special Funct Mat & Struct Design Key Lab Magnetism & Magnet Mat MOE Minist Educ Lanzhou 730000 Gansu Peoples R China;

    Ohio State Univ Coll Engn Dept Biomed Engn Columbus OH 43210 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aromatic cyclodipeptides; bioinspired LEDs; metal ion doping; supramolecular fluorescence; very initial oligomerization;

    机译：芳香族环二肽生物启发的LED;金属离子掺杂;超分子荧光最初的低聚;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号