Back Cover: Bilayer‐Coating Strategy for Hydrophobic Nanoparticles Providing Colloidal Stability, Functionality, and Surface Protection in Biological Media (Angew. Chem. Int. Ed. 36/2023)

Abstract

…c onsisting of oleate and dodecylamine provides excellent colloidal stability and versatility to nanoparticles with upconversion luminescence.T his surface modification strategy can be achieved in af ast and easy one-step reaction, as demonstrated by MaríaJ .Marín, Thomas Hirsch et al. in their Research Article (e202305165).

Recent Advances in Triplet Energy Transfer between Organic Dyes and Lanthanide-Doped Luminescent Nanoparticles

“…Triplet energy transfer between organic dyes and lanthanide-doped luminescent nanoparticles (LnLNPs) is a unique occurrence as compared to triplet energy transfer between organic dyes and other inorganic nanomaterials. , Specifically, triplet energy transfer between organic dyes and LnLNPs is appealing to biological applications due to the good stability and low toxicity of LnLNPs. − Moreover, this type of triplet energy transfer can be triggered by penetrative near-infrared (NIR) light, lowering the background noise and radiation damage to biospecies during bioapplications. ,,, Importantly, the organic dye-LnLNP triplet energy transfer can counteract limitations associated with both organic dyes and LnLNPs. For instance, dyes’ triplet energy can sensitize LnLNPs to overcome the intrinsic weak light absorption of LnLNPs, combating the unideal brightness of LnLNPs. ,,,− Meanwhile, LnLNPs are capable of directly activating dark triplet states of organic dyes, bypassing high-lying excited singlet states and energy-wasting intersystem crossing .…”