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Photoluminescence of Diphenylalanine Peptide Nano/Microstructures: From Mechanisms to Applications
KTH, School of Engineering Sciences (SCI), Applied Physics, Cellular Biophysics. KTH, Centres, Science for Life Laboratory, SciLifeLab. Ningbo University, China. (Advanced Light Microscopy)
2017 (English)In: Macromolecular rapid communications, ISSN 1022-1336, E-ISSN 1521-3927, Vol. 38, no 22, 1700370Article, review/survey (Refereed) Published
Abstract [en]

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 approximate to 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 beta-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.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2017. Vol. 38, no 22, 1700370
Keyword [en]
amyloid proteins, deep ultraviolet, diphenylalanine, photoluminescence, self-assembly
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-220493DOI: 10.1002/marc.201700370ISI: 000417215700002Scopus ID: 2-s2.0-85029371987OAI: oai:DiVA.org:kth-220493DiVA: diva2:1168558
Funder
Science for Life Laboratory - a national resource center for high-throughput molecular bioscience
Note

QC 20171221

Available from: 2017-12-21 Created: 2017-12-21 Last updated: 2017-12-21Bibliographically approved

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Xu, Hao

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