Cellulose

, Volume 24, Issue 3, pp 1287–1293

Hybrid fluorescent nanoparticles from quantum dots coupled to cellulose nanocrystals

  • Tiffany Abitbol
  • Heera S. Marway
  • Stephanie A. Kedzior
  • Xuan Yang
  • Anne Franey
  • Derek G. Gray
  • Emily D. Cranston
Original Paper

DOI: 10.1007/s10570-016-1188-3

Cite this article as:
Abitbol, T., Marway, H.S., Kedzior, S.A. et al. Cellulose (2017) 24: 1287. doi:10.1007/s10570-016-1188-3

Abstract

Carboxylated cellulose nanocrystals (CNCs) were decorated with CdSe/ZnS quantum dots (QDs) using a carbodiimide chemistry coupling approach. The one-step covalent modification was supported by nanoscale imaging, which showed QDs clustered on and around the CNCs after coupling. The QD–CNC hybrid nanoparticles remained colloidally stable in aqueous suspension and were fluorescent, exhibiting the broad excitation and narrow emission profile characteristic of the QDs. QD–CNCs in nanocomposite films imparted strong fluorescence within CNC-compatible matrices at relatively low loadings (0.15 nmol QDs/g of dry film), without altering the overall physical properties or self-assembly of the CNCs. The hybrid QD–CNCs may find applications in nanoparticle tracking, bio-imaging, optical/sensing devices, and anti-counterfeit technologies.

Keywords

Cellulose nanocrystals Quantum dots Fluorescent nanoparticles Hybrid nanoparticles 

Supplementary material

10570_2016_1188_MOESM1_ESM.docx (3.8 mb)
Supplementary material 1 (DOCX 3887 kb)

Funding information

Funder NameGrant NumberFunding Note
Natural Sciences and Engineering Research Council of Canada
  • 402329
  • EGP468835

Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  1. 1.Department of Chemical EngineeringMcMaster UniversityHamiltonCanada
  2. 2.Advanced Cellulosic MaterialBerwickCanada
  3. 3.Department of ChemistryMcGill UniversityMontrealCanada

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