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首页> 外文期刊>Advanced Functional Materials >Facile Nondestructive Assembly of Tyrosine-Rich Peptide Nanofibers as a Biological Clue for Multicomponent-Based Nanoelectrode Applications
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Facile Nondestructive Assembly of Tyrosine-Rich Peptide Nanofibers as a Biological Clue for Multicomponent-Based Nanoelectrode Applications

机译：富含酪氨酸的肽纳米纤维的简便无损组装作为基于多组分纳米电极应用的生物学线索

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摘要

Achieving the nondestructive assembly of carbon nanoelectrodes with multiple components in a scalable manner enables effective electrical interfaces among nanomaterials. Here, a facile nondestructive multiscale assembly of multicomponent nanomaterials using self-assembled tyrosine-rich peptide nanofibers (TPFs) as a biological glue is reported. The versatile functionalities of the rationally devised tyrosine-rich short peptide allow for (1) self-assembly of the peptide into nanofibers using noncovalent interactions, followed by (2) immobilization of spatially distributed metal nanoparticles on the nanofiber surface, and (3) subsequent assembly with graphitic nanomaterials into a percolated network-structure. This percolated network-structure of silver nanoparticle (AgNP)-decorated peptide nanofibers with imbedded single-walled carbon nanotubes (SWNTs) proves to be a versatile nanoelectrode platform with excellent processability. The SWNT-TPF-AgNP assembly, when utilized as a flexible and transparent multicomponent electronic film, was quite effective for enhancing direct electron transfer (DET) as verified for a third-generation glucose sensor composed of this film. The simple solution process used to produce the functional nanomaterials could provide a new platform for scalable manufacturing of novel nanoelectrode materials forming effective electrical contacts with molecules from diverse biological systems.
机译：以可扩展的方式实现具有多个组件的碳纳米电极的无损组装能够实现纳米材料之间的有效电接口。在此，报道了使用自组装的富含酪氨​​酸的肽纳米纤维（TPF）作为生物胶的多组分纳米材料的便捷的无损多尺度组装。合理设计的富含酪氨​​酸的短肽的通用功能允许（1）使用非共价相互作用将肽自组装为纳米纤维，然后（2）将空间分布的金属纳米颗粒固定在纳米纤维表面，以及（3）随后用石墨纳米材料组装成渗透的网络结构。具有嵌入式单壁碳纳米管（SWNT）的银纳米颗粒（AgNP）装饰的肽纳米纤维的这种渗透网络结构被证明是具有出色可加工性的多功能纳米电极平台。 SWNT-TPF-AgNP组件用作柔性和透明的多组分电子薄膜时，对于增强直接电子传递（DET）十分有效，正如针对由该薄膜组成的第三代葡萄糖传感器所证实的那样。用于生产功能纳米材料的简单解决方法可以为新型纳米电极材料的可扩展制造提供一个新平台，该新型纳米电极材料与来自不同生物系统的分子形成有效的电接触。

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