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 …

Theranostics is a concept of integrating imaging and therapy into a single platform for use in
the next generation of personalized medicine to meet the challenges in modern health …

Cancer accounted for 7.6 million deaths (around 13% of all deaths) worldwide in 2008.(1)
Almost 13 million cancer cases are newly diagnosed every year, and deaths are projected to …

Lanthanide doped nanoparticles (Ln: NPs) hold promise as novel luminescent probes for
numerous applications in nanobiophotonics. Despite excellent photostability, narrowband …

Photodynamic therapy (PDT) has become widely accepted and utilized for tumor therapy.
Considering the natural shortcomings (eg, lack of an ideal photosensitizer and limited light …

Significant progress on upconversion‐nanoparticle (UCNP)‐based probes is witnessed in
recent years. Compared with traditional fluorescent probes (eg, organic dyes, metal …

Rare-earth upconversion nanophosphors (UCNPs), when excited by continuous-wave near-
infrared light, exhibit a unique narrow photoluminescence with higher energy. Such special …

Functionalized upconversion nanoparticles (UCNPs) have perceived massive success in
the area of bio-photonic applications. UCNPs are extensively used as a successful emitter in …

Photon-upconverting nanoparticles (UCNPs) can be excited by near-infrared light and emit
visible light (anti-Stokes emission) which prevents autofluorescence and light scattering of …

Upconversion (UC) refers to nonlinear optical processes in which the sequential absorption
of two or more photons leads to the emission of light at shorter wavelength than the …