Impurity doping is a promising method to impart new properties to various materials. Due to
their unique optical, magnetic, and electrical properties, rare-earth ions have been …

Upconversion nanoparticles (UCNPs) represent a class of optical nanomaterials that can
convert low-energy excitation photons to high-energy fluorescence emissions. On the basis …

Composites or hybrid materials offer diverse properties not achievable in pure materials.
Here we critically review the interesting and controllable fluorescence and photothermal …

The increased spread and persistence of bacterial drug-resistant phenotypes remains a
public health concern and has contributed significantly to the challenge of combating …

Phototheranostic platform emerges as a highly powerful tool against cancers due to unique
features such as minimal invasiveness, high spatiotemporal resolution, and function …

Near‐infrared (NIR) light is well‐suited for the optical imaging and wireless phototherapy of
malignant diseases because of its deep tissue penetration, low autofluorescence, weak …

Heterogeneous nanocomposites constructed by lanthanide-doped nanoparticles and metal–
organic frameworks (MOFs) have broad application prospects in therapy, catalysis, optical …

The growing crisis of antibiotic resistance calls for advanced and sustainable antibacterial
strategies. In the past few years, lanthanide‐doped upconversion nanoparticles (UCNPs) …

Semiconducting indium selenide (InSe) monolayers have drawn a great deal of attention
among all the chalcogenide two-dimensional materials on account of their high electron …

Deep tissue penetration, chemical inertness and biocompatibility give UCNPs a competitive
edge over traditional fluorescent materials like organic dyes or quantum dots. However, the …