Lanthanide-based upconversion nanomaterials have recently attracted considerable
attention in both fundamental research and various frontier applications owing to their …

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

The field of advanced nanotechnology is brimming with a plethora of nanotheranostics
whose combinatorial synergistic applicability in treating malignant tumors is tremendous. But …

Dynamic control of multi-photon upconversion with rich and tunable emission colors is
stimulating extensive interest in both fundamental research and frontier applications of …

Rare-earth (RE) doped nanoparticles show unique features of photon conversion from an
incident wavelength to a more suitable wavelength at an intended biological site, thus …

Upconversion nanoparticles are a class of luminescent materials that convert longer-
wavelength near-infrared photons into visible and ultraviolet emissions. They can respond to …

Energy-intensive technologies and high-precision research require energy-efficient
techniques and materials. Lens-based optical microscopy technology is useful for low …

The surface-enhanced Raman scattering (SERS) technique strongly depended on the
excellent optical properties of the substrate. However, simply roughing of the metal surfaces …

Cancer-derived small extracellular vesicles (sEVs) are potential circulating biomarkers in
liquid biopsies. However, their small sizes, low abundance, and heterogeneity in molecular …

Here, we firstly introduce a detection system consisting of upconversion nanoparticles
(UCNPs) and Au nanorods (AuNRs) for an ultrasensitive, rapid, quantitative and on-site …