FITC Dextran is widely used as a fluorescent tracer in biological and medical research to study permeability and flow dynamics in various systems. It is particularly valuable in vascular and lymphatic studies, where it helps visualize and quantify blood vessel integrity, endothelial cell function, and barrier permeability. In drug delivery research, FITC Dextran serves as a model compound to assess the efficiency of nanoparticle uptake and transport across cellular membranes. It is also employed in microscopy and flow cytometry to track cell movement, monitor endocytosis, and study intracellular trafficking. Additionally, FITC Dextran is used in tissue engineering to evaluate scaffold permeability and nutrient diffusion. Its fluorescent properties make it a versatile tool for real-time imaging and analysis in both in vitro and in vivo experiments.