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Related Experiment Video

Updated: Jun 14, 2026

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

One-Step Preparation of Lanthanide-Doped Polyurea Multicolor Microspheres for Versatile Fluorescent Applications.

Guiyu Zhang1, Xiaoxia Yu2, Xinhui Wang2

  • 1College of Chemistry and Chemical Engineering, University of Jinan, Jinan, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 12, 2026
PubMed
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Lanthanide-doped polyurea microspheres (LTP@PUMs) offer tunable multicolor fluorescence and high quantum yield. These versatile microspheres show promise in sensing, imaging, 3D printing, and biomedical applications due to their stability and biocompatibility.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Chemistry

Background:

  • Developing advanced fluorescent materials with tunable properties is crucial for various technological applications.
  • Polyurea microspheres offer a versatile platform for material functionalization.
  • Lanthanide doping can impart unique luminescent properties to materials.

Purpose of the Study:

  • To develop a facile method for synthesizing lanthanide-doped polyurea microspheres (LTP@PUMs).
  • To investigate the tunable fluorescence properties and stability of LTP@PUMs.
  • To explore the potential applications of LTP@PUMs in sensing, imaging, 3D printing, and biomedicine.

Main Methods:

  • One-step precipitation polymerization under quiescent conditions without stabilizers.
Keywords:
3D printingLn3+ coordinationin vivo metabolismlatent fingerprint visualizationmulticolor fluorescencepolyurea microspheresreusable for pollutant detection

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

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Last Updated: Jun 14, 2026

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

Published on: November 10, 2017

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

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  • Tuning experimental parameters to control microsphere size and fluorescence color.
  • Characterization of fluorescence properties, stability, and biocompatibility.

    • Main Results:

    • Successfully synthesized size- and color-tunable LTP@PUMs with high quantum yield (75.3%) and excellent stability.
    • Demonstrated selective detection of 4-nitrophenol with high sensitivity (0.076 µM) using LTP@PUMs as fluorescent sensors.
    • Achieved high-quality latent fingerprint imaging and developed high-thermal-resistant multicolor fillers for 3D printing.
    • Showcased selective accumulation in spleen and lungs for high-contrast in vivo imaging with no observed adverse effects after eight months.

    Conclusions:

    • A novel strategy for fabricating multifunctional fluorescent microspheres was established.
    • LTP@PUMs exhibit remarkable properties, enabling diverse applications in environmental monitoring, public security, advanced manufacturing, and biomedicine.
    • The developed LTP@PUMs represent a promising class of materials for advanced technological and biomedical fields.