Photoluminescence of Diphenylalanine Peptide Nano/Microstructures: From Mechanisms to Applications,Macromolecular Rapid Communications

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Photoluminescence of Diphenylalanine Peptide Nano/Microstructures: From Mechanisms to Applications
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-09-13 , DOI: 10.1002/marc.201700370
Zhixing Gan ₁ , Hao Xu _{2,

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Affiliation

Diphenylalanine (Phe‐Phe, FF) molecules, which can self‐assemble into highly ordered nano/microstructures, have increasingly aroused intense interests due to their special optical properties. In this review, recent advances in photoluminescence (PL) of supramolecular architectures of FF‐based peptide and the underlying mechanisms are highlighted. Mainly deep ultraviolet emission at around 285 nm and/or blue emission at ≈450 nm are observed in various FF peptide structures and its derivatives, which are primarily interpreted by quantum confinement effects, shallow radiative traps, and electron delocalization via hydrogen bonds in β‐sheet structures. Furthermore, current applications of such fluorescent peptide nano/microstructures are also reviewed here, e.g., probing the number of water molecules confined in FF, temperature sensing, and visualization of deep ultraviolet beam. Yet, the PL mechanism is still under fierce debate and the application based on fluorescence is constantly under exploration. Thus, this review is endeavored to boost future explorations on the PL of the bioinspired FF peptide nano/microstructures.

中文翻译：

二苯丙氨酸肽纳米/微结构的光致发光：从机制到应用程序。

能够自组装成高度有序的纳米/微结构的二苯丙氨酸（Phe-Phe，FF）分子由于其特殊的光学性能而引起了越来越多的关注。在这篇综述中，着重介绍了基于FF的肽的超分子结构的光致发光（PL）及其潜在机理的最新进展。在各种FF肽结构及其衍生物中，主要观察到约285 nm处的深紫外发射和/或约450 nm处的蓝发射，这主要由量子限制效应，浅辐射陷阱和通过β-中的氢键引起的电子离域来解释。薄板结构。此外，这里还回顾了这种荧光肽纳米/微结构的当前应用，例如，探查局限在FF中的水分子的数量，温度感测和深紫外线的可视化。然而，PL机理仍处于激烈争论之中，基于荧光的应用也在不断探索中。因此，本综述致力于促进对生物启发的FF肽纳米/微结构的PL的进一步探索。

更新日期：2017-09-13

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