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Related Experiment Video

Updated: May 25, 2026

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
12:51

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Low-power upconversion in dye-doped polymer nanoparticles.

Yoan C Simon1, Shuo Bai, Michelle K Sing

  • 1Adolphe Merkle Institute and Fribourg Center for Nanomaterials, University of Fribourg, Rte de l'Ancienne Papeterie, P.O. Box 209, 1723 Marly, Switzerland. yoan.simon@unifr.ch

Macromolecular Rapid Communications
|February 4, 2012
PubMed
Summary
This summary is machine-generated.

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Researchers developed low-power upconverting nanoparticles for bioimaging and drug delivery. These dye-doped rubbery particles show blue emission, even at low power densities, using a palladium porphyrin and diphenylanthracene system.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Photochemistry

Background:

  • Upconversion nanoparticles (UCNPs) offer potential for advanced applications like bioimaging and drug delivery.
  • Developing UCNPs that operate efficiently at low power densities is crucial for practical use.
  • Existing UCNP systems often require high excitation power, limiting their applications.

Purpose of the Study:

  • To fabricate novel dye-doped, cross-linked, rubbery nanoparticles exhibiting efficient upconversion.
  • To investigate the upconversion properties of these nanoparticles at low excitation power densities.
  • To characterize the optical and physical properties of the synthesized nanoparticles.

Main Methods:

  • Surfactant-free emulsion polymerization of n-butylacrylate and divinylbenzene.

More Related Videos

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Related Experiment Videos

Last Updated: May 25, 2026

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
12:51

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

  • Dye-doping with a two-chromophore system: palladium porphyrin sensitizer and diphenylanthracene.
  • Characterization using electron microscopy, dynamic light scattering, and optical spectroscopy.

    • Main Results:

    • Successfully synthesized cross-linked rubbery nanoparticles with efficient upconversion capabilities.
    • Observed blue emission at approximately 440 nm upon excitation at 532 nm.
    • Demonstrated upconversion performance even at relatively low excitation power densities.

    Conclusions:

    • The fabricated dye-doped rubbery nanoparticles represent a promising low-power upconverting system.
    • These nanoparticles hold significant potential for applications in bioimaging and drug delivery.
    • The study highlights a viable method for creating efficient UCNPs using readily available materials.