Impurity do** 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 …

Photodynamic therapy (PDT) has been extensively investigated for decades for tumor
treatment because of its non-invasiveness, spatiotemporal selectivity, lower side-effects, and …

Photoactivatable (alternatively, photoremovable, photoreleasable, or photocleavable)
protecting groups (PPGs), also known as caged or photocaged compounds, are used to …

Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow
efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide …

Tailored to the specific tumour microenvironment, which involves acidity and the
overproduction of hydrogen peroxide, advanced nanotechnology has been introduced to …

Understanding the mechanism and progression of neutrophil-involved diseases (eg, acute
inflammation) is of great importance. However, current available analytical methods neither …

In this Review article, we systematically summarize the design and applications of various
kinds of long-lived emissive probes for bioimaging and biosensing via time-resolved …

Photodynamic therapy (PDT) has been applied to treat a wide range of medical conditions,
including wet age-related macular degeneration psoriasis, atherosclerosis, viral infection …

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 …

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 …