Cited by 65Luminescence and Fluorescent MaterialsQuantum Dots Synthesis And PropertiesCarbon and Quantum Dots Applications

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

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Piwoński, Hubert, Michinobu, Tsuyoshi, Habuchi, Satoshi·2017·Nature Communications

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.

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  1. Fouassier J.-P. & Rabek J. F. Lasers in polymer science and technology: applications vol. III, CRC Press, Boca Raton, Florida (1990).

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Authors
Piwoński, H., Michinobu, T., & Habuchi, S.
Affiliations
  • King Abdullah University of Science and Technology (SA)
  • Tokyo Institute of Technology (JP)
Corresponding author
Habuchi, Satoshi
Venue
Nature Communications
Published
2017-05-16
Volume
8
Issue
1
Pages
15256-15256
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2615698602
Cited by
65
References
42
Citations by year
2026: 3 · 2025: 9 · 2024: 5 · 2023: 11 · 2022: 9 · 2021: 5 · 2020: 8 · 2019: 7 · 2018: 6 · 2017: 2
FWCI
2.66
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion, cc-by)
  • Tokyo Tech Research Repository (Tokyo Institute of Technology) (submittedVersion)
Funders
King Abdullah University of Science and Technology
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
  • Physical Sciences › Materials Science › Materials Chemistry › Carbon and Quantum Dots Applications
Keywords
conjugated polymer nanoparticles, polymer packing, reprecipitation, photostability, fluorescence intensity, photophysical properties

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