NBD Cholesteryllinoleate | CAS 78949-96-9

NBD Cholesteryllinoleate is a fluorescent lipid probe built from an NBD fluorophore esterified to a cholesteryl scaffold and paired with a linoleate chain, enabling membrane-associated labeling and tracking of lipid behavior. Its bright NBD emission supports fluorescence readouts in lipid bilayers, where the probe integrates into hydrophobic environments and can report on membrane localization and lipid dynamics in cell and model membrane systems.

1. Membrane Incorporation Studies

NBD Cholesteryllinoleate is used in membrane lipid research to visualize how cholesterol-rich, fatty-acid-containing species partition into lipid bilayers. Researchers commonly incorporate the probe into cultured cells or lipid vesicle models to monitor membrane association by fluorescence microscopy or plate-based fluorescence assays, supporting studies of lipid trafficking, membrane remodeling, and lipid exchange processes under defined experimental conditions.

2. Lipid Dynamics Imaging

NBD Cholesteryllinoleate supports time-resolved fluorescence imaging workflows aimed at tracking redistribution of cholesterol/linoleate-like lipid components across cellular membranes. In fluorescence microscopy experiments, the probe's membrane localization enables monitoring of spatial changes in fluorescence intensity as lipids move between membrane compartments, helping chemists and cell biologists evaluate how lipid composition and experimental perturbations influence lipid mobility and localization patterns.

3. Lipid Uptake And Exchange Assays

NBD Cholesteryllinoleate is frequently employed in uptake and exchange assay development where fluorescence intensity serves as a convenient quantitative readout. By comparing signal changes after exposure to the probe under controlled conditions, users can assess relative incorporation into membranes and subsequent exchange with endogenous or externally supplied lipid components, making it useful for screening lipid-handling conditions in mechanistic lipid biology and biomaterials-adjacent studies.

4. Model Membrane Characterization

NBD Cholesteryllinoleate is also used to characterize synthetic membrane systems such as liposomes and supported lipid bilayers, where membrane composition can be tuned to study probe partitioning and fluorescence response. Fluorescence measurements in these model platforms help researchers interpret how cholesterol content and fatty-acid environment influence probe distribution, supporting method development for membrane-active formulations and lipid-interacting materials.