Control of Luminescence and Interfacial Properties as Perspective for Upconversion Nanoparticles

© 2023 The Authors. Small published by Wiley‐VCH GmbH..

Near-infrared (NIR) light is highly suitable for studying biological systems due to its minimal scattering and lack of background fluorescence excitation, resulting in high signal-to-noise ratios. By combining NIR light with lanthanide-based upconversion nanoparticles (UCNPs), upconversion is used to generate UV or visible light within tissue. This remarkable property has gained significant research interest over the past two decades. Synthesis methods are developed to produce particles of various sizes, shapes, and complex core-shell architectures and new strategies are explored to optimize particle properties for specific bioapplications. The diverse photophysics of lanthanide ions offers extensive possibilities to tailor spectral characteristics by incorporating different ions and manipulating their arrangement within the nanocrystal. However, several challenges remain before UCNPs can be widely applied. Understanding the behavior of particle surfaces when exposed to complex biological environments is crucial. In applications where deep tissue penetration is required, such as photodynamic therapy and optogenetics, UCNPs show great potential as nanolamps. These nanoparticles can combine diagnostics and therapeutics in a minimally invasive, efficient manner, making them ideal upconversion probes. This article provides an overview of recent UCNP design trends, highlights past research achievements, and outlines potential future directions to bring upconversion research to the next level.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:20

Enthalten in:

Small (Weinheim an der Bergstrasse, Germany) - 20(2024), 14 vom: 12. Apr., Seite e2306042

Sprache:

Englisch

Beteiligte Personen:

Schroter, Alexandra [VerfasserIn]
Hirsch, Thomas [VerfasserIn]

Links:

Volltext

Themen:

Ions
Journal Article
Lanthanides
Lanthanoid Series Elements
Luminescence
Nanoparticles
Near‐infrared (NIR)
Review
Upconversion

Anmerkungen:

Date Completed 08.04.2024

Date Revised 23.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/smll.202306042

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364775815