Integration of superconducting nanowire single-photon detectors with nanophotonic
waveguides is a key technological step that enables a broad range of classical and quantum …

Imaging techniques based on retinal autofluorescence have found broad applications in
ophthalmology because they are extremely sensitive and noninvasive. Conventional fundus …

Fluorescence-or Förster resonance energy transfer (FRET) is a measurable physical energy
transfer phenomenon between appropriate chromophores, when they are in sufficient …

Fluorescence resonance energy transfer (FRET) is a powerful spectroscopic method for
measuring distances in the 2–8 nm range. Often, conformational changes and molecular …

Fluorescence lifetime imaging (FLI) provides unique quantitative information in biomedical
and molecular biology studies but relies on complex data-fitting techniques to derive the …

Luminescent iridium (III) complexes exhibit high phosphorescence quantum yields and
photostability, good cell membrane permeability, rich and sensitive photophysical …

Distinct subcellular pH levels, especially in lysosomes and endosomes, are essential for the
degradation, modification, sorting, accumulation, and secretion of macromolecules. Here …

Biomolecular condensates serve as membrane-less compartments within cells,
concentrating proteins and nucleic acids to facilitate precise spatial and temporal …

Fluorescence optical imaging is a highly sensitive and powerful tool with diverse in vitro and
in vivo applications for preclinical and clinical studies. This review is focused on the optical …

Fluorescence lifetime imaging microscopy (FLIM) has been rapidly developed over the past
30 years and widely applied in biomedical engineering. Recent progress in fluorophore …