Gap Junction Intercellular Coupling (2D)

This is the 2D top-down counterpart to the 3D gap-junction simulator. A hexagonal sheet of 61 cells is wired together by connexin gap junctions and the same diffusion-on-a-network model governs how a signalling molecule spreads from cell to cell through those channels — the 3D version was itself only a flat axial-coordinate graph viewed through a perspective camera, so this rendering solves and displays the identical mechanism directly from above. Pick the tracer species to see the connexin pore's molecular-weight cutoff in action, tune connexon channel density and Ca²⁺/pH-driven gating to couple or uncouple the tissue, click anywhere on the lattice to move the source, and drag-pan / scroll-zoom to inspect the ripple up close — with a live strip-chart tracking network mean concentration and coupling index alongside the instantaneous readouts.