Designing next generation of photon upconversion: Recent advances in organic triplet-triplet annihilation upconversion nanoparticles

Biomaterials
Ling HuangGang Han

Abstract

Organic triplet-triplet annihilation upconversion (TTA-UC) nanoparticles have emerged as exciting therapeutic agents and imaging probes in recent years due to their unique chemical and optical properties such as outstanding biocompatibility and low power excitation density. In this review, we focus on the latest breakthroughs in such new version of upconversion nanoparticle, including their design, preparation, and applications. First, we will discuss the key principles and design concept of these organic-based photon upconversion in regard to the methods of selection of the related triplet TTA dye pairs (photosensitizer and emitter). Then, we will discuss the recent approaches s to construct TTA-UCNPs including silica TTA-UCNPs, lipid-coated TTA-UCNPs, polymer encapsulated TTA-UCNPs, nano-droplet TTA-UCNPs and metal-organic frameworks (MOFs) constructed TTA-UCNPs. In addition, the applications of TTA-UCNPs will be discussed. Finally, we will discuss the challenges posed by current TTA-UCNP development.

Citations

Jul 18, 2019·Physical Chemistry Chemical Physics : PCCP·Adrien SchlachterPierre D Harvey
Nov 2, 2019·Chemistry : a European Journal·Shadab GharaatiKatja Heinze
Aug 14, 2020·Physical Chemistry Chemical Physics : PCCP·James B DerrValentine I Vullev
Jun 16, 2021·Colloids and Surfaces. B, Biointerfaces·Huixian YanGuangxi Zhai
Jul 21, 2021·Chemical Reviews·W Russ AlgarHyungki Kim
Oct 20, 2020·Journal of the American Chemical Society·Ling HuangGang Han
Sep 25, 2021·The Journal of Physical Chemistry Letters·Guiwen LuoYi Li
Feb 2, 2022·ACS Applied Materials & Interfaces·Yingxue LiCheng Yao

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