In vivo imaging technologies have emerged as a powerful tool for both fundamental
research and clinical practice. In particular, luminescence imaging in the tissue-transparent …

Lanthanide-doped upconversion nanoparticles (UCNPs) possess the remarkable ability to
convert multiple near-infrared (NIR) photons into higher energy ultraviolet–visible (UV–vis) …

Upconversion is a nonlinear optical phenomenon that involves the emission of high‐energy
photons by sequential absorption of two or more low‐energy excitation photons. Due to their …

Nanoparticles are generally defined as any particulate material for which at least one
dimension lies in the range of 1− 100 nm. 1− 3 They can exist in various shapes, such as …

Lanthanide-doped upconversion nanocrystals enable anti-Stokes emission with pump
intensities several orders of magnitude lower than required by conventional nonlinear …

Magnetic resonance imaging (MRI) is a highly valuable non-invasive imaging tool owing to
its exquisite soft tissue contrast, high spatial resolution, lack of ionizing radiation, and wide …

Luminescence-based techniques continue to attract considerable attention due not only to
their current range of applications but also to their wide potential in the fields of optical …

Lanthanides refer to the 15 elements located at the sixth period and IIIB group in the periodic
table, ranging from lanthanum to lutetium, with the electronic configuration of [Xe] 4f n–1 5d …

Upconversion Nanoparticles: Design, Nanochemistry, and Applications in Theranostics |
Chemical Reviews Recently Viewedclose modal ACS ACS Publications C&EN CAS Find …

Luminescent ratiometric thermometers combining high spatial and temporal resolution at the
micro-and nanoscale, where the conventional methods are ineffective, have emerged over …