Fig. 4
From: Microfluidic compartmentalization of rat vagal afferent neurons to model gut-brain axis
Cholera toxin subunit B (CTB) uptake and retrograde transport (DIV 3). a Fluorescently-tagged CTB is taken up at neurite terminals in the outside chamber. b CTB position at timepoint 0 and after 2 h, illustrating transport down the neurite through the channel. ∆x denotes the change in leading edge of transport position