Controlling photophysical properties of ultrasmall conjugated polymer nanoparticles through polymer chain packing

Handle URI:
http://hdl.handle.net/10754/623630
Title:
Controlling photophysical properties of ultrasmall conjugated polymer nanoparticles through polymer chain packing
Authors:
Piwoński, Hubert; Michinobu, Tsuyoshi; Habuchi, Satoshi ( 0000-0002-6663-2807 )
Abstract:
Applications of conjugated polymer nanoparticles (Pdots) for imaging and sensing depend on their size, fluorescence brightness and intraparticle energy transfer. The molecular design of conjugated polymers (CPs) has been the main focus of the development of Pdots. Here we demonstrate that proper control of the physical interactions between the chains is as critical as the molecular design. The unique design of twisted CPs and fine-tuning of the reprecipitation conditions allow us to fabricate ultrasmall (3.0–4.5 nm) Pdots with excellent photostability. Extensive photophysical and structural characterization reveals the essential role played by the packing of the polymer chains in the particles in the intraparticle spatial alignment of the emitting sites, which regulate the fluorescence brightness and the intraparticle energy migration efficiency. Our findings enhance understanding of the relationship between chain interactions and the photophysical properties of CP nanomaterials, providing a framework for designing and fabricating functional Pdots for imaging applications.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Piwoński H, Michinobu T, Habuchi S (2017) Controlling photophysical properties of ultrasmall conjugated polymer nanoparticles through polymer chain packing. Nature Communications 8: 15256. Available: http://dx.doi.org/10.1038/ncomms15256.
Publisher:
Springer Nature
Journal:
Nature Communications
Issue Date:
16-May-2017
DOI:
10.1038/ncomms15256
Type:
Article
ISSN:
2041-1723
Sponsors:
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). We thank Dr Rachid Sougrat for the cryo-EM images and Dr Christian Canlas and Dr Abdelhamid Emwas for the NMR spectra of the fabricated Pdots. We also thank Haruka Osako for the assistance in the polymer synthesis.
Additional Links:
https://www.nature.com/articles/ncomms15256
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPiwoński, Huberten
dc.contributor.authorMichinobu, Tsuyoshien
dc.contributor.authorHabuchi, Satoshien
dc.date.accessioned2017-05-17T07:41:39Z-
dc.date.available2017-05-17T07:41:39Z-
dc.date.issued2017-05-16en
dc.identifier.citationPiwoński H, Michinobu T, Habuchi S (2017) Controlling photophysical properties of ultrasmall conjugated polymer nanoparticles through polymer chain packing. Nature Communications 8: 15256. Available: http://dx.doi.org/10.1038/ncomms15256.en
dc.identifier.issn2041-1723en
dc.identifier.doi10.1038/ncomms15256en
dc.identifier.urihttp://hdl.handle.net/10754/623630-
dc.description.abstractApplications of conjugated polymer nanoparticles (Pdots) for imaging and sensing depend on their size, fluorescence brightness and intraparticle energy transfer. The molecular design of conjugated polymers (CPs) has been the main focus of the development of Pdots. Here we demonstrate that proper control of the physical interactions between the chains is as critical as the molecular design. The unique design of twisted CPs and fine-tuning of the reprecipitation conditions allow us to fabricate ultrasmall (3.0–4.5 nm) Pdots with excellent photostability. Extensive photophysical and structural characterization reveals the essential role played by the packing of the polymer chains in the particles in the intraparticle spatial alignment of the emitting sites, which regulate the fluorescence brightness and the intraparticle energy migration efficiency. Our findings enhance understanding of the relationship between chain interactions and the photophysical properties of CP nanomaterials, providing a framework for designing and fabricating functional Pdots for imaging applications.en
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). We thank Dr Rachid Sougrat for the cryo-EM images and Dr Christian Canlas and Dr Abdelhamid Emwas for the NMR spectra of the fabricated Pdots. We also thank Haruka Osako for the assistance in the polymer synthesis.en
dc.publisherSpringer Natureen
dc.relation.urlhttps://www.nature.com/articles/ncomms15256en
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleControlling photophysical properties of ultrasmall conjugated polymer nanoparticles through polymer chain packingen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalNature Communicationsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionTokyo Institute of Technology, Department of Organic and Polymeric Materials, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japanen
kaust.authorPiwoński, Huberten
kaust.authorHabuchi, Satoshien
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