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Upconversion Nanoparticle-Assisted Photopolymerization.

Ke Wang¹, Jhair Peña¹, Jinfeng Xing¹

¹School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.

Photochemistry and Photobiology

|March 3, 2020

Summary

Near-infrared lasers activate upconversion nanoparticles (UCNPs) to generate UV/vis light for photopolymerization. This UCNP-assisted method offers unique advantages for biological applications.

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Area of Science:

Materials Science
Nanotechnology
Photochemistry

Background:

Near-infrared (NIR) lasers offer deeper tissue penetration and reduced thermal damage compared to ultraviolet-visible (UV/vis) lasers.
Upconversion nanoparticles (UCNPs) efficiently convert NIR light into UV/vis light, enabling remote activation.
Photopolymerization is a critical process in various fields, including biomaterials and microfabrication.

Purpose of the Study:

To review the research progress of upconversion nanoparticle-assisted photopolymerization.
To discuss the factors influencing UCNP-assisted polymerization processes.
To explore the potential applications of this technology, particularly in the biological field.

Main Methods:

Review of existing literature on UCNP-assisted photopolymerization.

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Analysis of the relationship between gel size and monomer concentration.

Discussion of influencing factors on UCNP-mediated polymerization.

Main Results:

UCNPs effectively generate UV/vis light under NIR laser irradiation for photopolymerization.
UCNP-assisted photopolymerization exhibits unique characteristics compared to traditional UV/vis laser methods.
Factors influencing polymerization and the correlation between gel size and monomer concentration were investigated.

Conclusions:

UCNP-assisted photopolymerization is a promising technique leveraging the advantages of NIR lasers and UCNPs.
Further research into influencing factors and biological applications is warranted.
This technology holds significant potential for advanced applications in the biological and biomedical fields.