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Non-conventional fluorescent biogenic and synthetic polymers without aromatic rings

Ye, Ruquan and Liu, Yuanyue and Zhang, Haoke and Su, Huifang and Zhang, Yilin and Xu, Liguo and Hu, Rongrong and Kwok, Ryan T. K. and Wong, Kam Sing and Lam, Jacky W. Y. and Goddard, William A., III and Tang, Ben Zhong (2017) Non-conventional fluorescent biogenic and synthetic polymers without aromatic rings. Polymer Chemistry, 8 (10). pp. 1722-1727. ISSN 1759-9954. http://resolver.caltech.edu/CaltechAUTHORS:20170222-090600137

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Abstract

Non-conventional fluorescent materials without aromatic structures have attracted much research attention in recent years. However, the working mechanism responsible for their fluorescence remains mysterious. Here we decipher the origin of fluorescence by studying the photophysical properties of a series of non-aromatic biogenic and synthetic peptides. An experimental study suggests that the turn-on fluorescence in the aggregation state/condensed phase is associated with the communication of amide groups, where hydrogen bonds are playing a critical role in bringing these functionalities into close proximity. This explanation is further justified by the study of the hierarchical influence on fluorescence and applied to biomimetic polymers in a more general content. This discovery provides a more comprehensive insight into the bioluminescence system. It may stimulate future development of new fluorescent materials, and inspire research on disease diagnostics, biomechanics measurements, etc. that are associated with protein morphology.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1039/c7py00154aDOIArticle
http://pubs.rsc.org/en/Content/ArticleLanding/2017/PY/C7PY00154APublisherArticle
ORCID:
AuthorORCID
Ye, Ruquan0000-0002-2543-9090
Liu, Yuanyue0000-0002-5880-8649
Goddard, William A., III0000-0003-0097-5716
Additional Information:© 2017 The Royal Society of Chemistry. Received 24 Jan 2017, Accepted 07 Feb 2017, First published online 08 Feb 2017. This work was partially supported by the National Basic Research Program of China (973 Program, 2013CB834701 and 2013CB834702), the University Grants Committee of Hong Kong (AoE/P-03/08), the Innovation and Technology Commission (ITCCNERC14S01), the Research Grants Council of Hong Kong (16301614, 16305015 and N_HKUST604/14), and the Guangdong Innovative Research Team Program (201101C0105067115). YL acknowledges the support from the Resnick Prize Postdoctoral Fellowship at Caltech. This work used computational resources of NREL Peregrine, DOE NERSC, and NSF XSEDE. Author contributions: R. Y. and B. T. designed the experiments. R. Y. synthesized all the oligopeptides, polypeptides, and biomimetic polymers, and obtained the NMR, FTIR, PL emission spectra. Y. L. and W. A. G. carried out the theoretical modelling and calculation. R. Y. and H. Z. obtained the CD spectra. H. S. obtained the confocal images. L. X. and R. H. performed the fluorescence lifetime measurement. Y. Z. and K. S. W. performed the quantum yield measurement. R. T. K. K. and J. W. Y. L. revised the manuscript. R. Y. and B. T. wrote the manuscript with comments from all authors.
Group:Resnick Sustainability Institute
Funders:
Funding AgencyGrant Number
National Basic Research Program of China2013CB834701
National Basic Research Program of China2013CB834702
University Grants Committee of Hong KongAoE/P-03/08
Innovation and Technology CommissionITCCNERC14S01
Research Grants Council of Hong Kong16301614
Research Grants Council of Hong Kong16305015
Research Grants Council of Hong KongN_HKUST604/14
Guangdong Innovative Research Team Program201101C0105067115
Resnick Sustainability InstituteUNSPECIFIED
Record Number:CaltechAUTHORS:20170222-090600137
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170222-090600137
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74458
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 Feb 2017 19:40
Last Modified:07 Mar 2017 17:58

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