Fluorescent derivatives of σ(2) high affinity ligand 1-cyclohexyl-4-[3-(5-methoxy-1,2,3,4-tetrahydronaphthalen-1-yl)propyl]piperazine 1 (PB28) were synthesized. NBD or dansyl fluorescent tags were connected through a 5- or 6-atom linker in two diverse positions of 1 structure. Good σ(2) affinities were obtained when the fluorescent tag was linked to 5-methoxytetralin nucleus replacing the methy...

Confocal and two-photon fluorescence microscopy techniques using genetically encoded fluorescent probes are widely used in cell biology. Beyond the common problems of photobleaching and phototoxicity, we present evidence that photounbinding also has the potential to compromise such methods, especially in quantitative studies. We show that laser intensities within excitation regimes typical for ...

The development of fluorescence labeling techniques has attracted widespread interest in various fields, including biomedical science as it can facilitate high-resolution imaging and the spatiotemporal understanding biological processes. We report a supramolecular strategy using luminescent metal-phenolic networks (MPNs) constructed from metal ions, phenolic ligands, common commercially availab...

Nanoparticles are being widely used in the field of medicine called Nanomedicine. Biological membranes human body selectively permeable to Nanoparticles. The nanoparticles can be surface modified attach a variety ligands which enable them biosensors, molecular-scale fluorescent tags, imaging agents, and targeted drug delivery vehicles. Green synthesis is type bottom-up approach reaction occurs ...

This report describes the detailed procedures for Western blot analysis using fluorescent antibodies. After electrophoresis and subsequent electroblotting, the fluorescent-labeled antibodies were visible upon ultraviolet illumination of the polyvinylidene fluoride (PVDF) membranes and could then be photographed to give an accurate record of the blots. Fluorescent labeling allows for photographi...

BACKGROUND The use of near-infrared (NIR) fluorescence imaging techniques has gained great interest for early detection of cancer because water and other intrinsic biomolecules display negligible absorption or autofluorescence in this region. Novel fluorescent nanoparticles with potential to improve neoplasm detection sensitivity may prove to be a valuable tool in early detection of colon tumor...