All in all, the developed APTS-dextran ladder is a useful tool to characterize cell layer tightness and especially to describe paracellular transport ways and the extent of leakiness of cell layers (for blood-brain barrier or intestinal studies) over time--applying a wide array from smaller to larger molecules at the same time to refine TEER, sucrose, or Evans blue measurements.
Immobilization of WGA considerably enhances the binding as well as the uptake of PLGA-nanospheres by Caco-2 monolayers. For bioadhesion studies, the vertical setup is recommended instead of the horizontal setup.
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