Luminescence lifetime imaging has exhibited significant advantages over traditional optical
imaging in terms of precise quantification detection because of the intrinsic stability of …

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

Deep tissue imaging in the second near-infrared (NIR-II) window holds great promise for
physiological studies and biomedical applications,,,,–. However, inhomogeneous signal …

An outbreak of coronavirus disease (COVID-19) caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) poses great threats to human health and the …

Optical characteristics of luminescent materials, such as emission profile and lifetime, play
an important role in their applications in optical data storage, document security, diagnostics …

The blood–brain barrier (BBB) is a highly specialized neurovascular unit, initially described
as an intact barrier to prevent toxins, pathogens, and potentially harmful substances from …

Lanthanide-doped upconversion nanoparticles (UCNPs) have received substantial attention
in diversities of frontier applications because of their excellent and flexible photon …

Encoded nano-structures/particles have been used for barcoding and are in great demand
for the simultaneous analysis of multiple targets. Due to their nanoscale dimension (s), nano …

Lanthanide-doped upconversion nanoparticles (UCNPs) have attracted considerable
interest due to their superior physicochemical features, such as large anti-Stokes shifts, low …

Optical imaging emerges as a vital component of the various techniques needed to meet the
stringent requirements of modern bioanalysis and bioimaging. Lanthanide luminescent …