Calcium Signaling Oscillator

Intracellular Ca²⁺ signaling is one of the fastest and most versatile forms of cell communication: IP3 released downstream of a GPCR cascade opens channels on the endoplasmic reticulum, and the resulting calcium-induced calcium release turns a steady hormonal input into a train of rhythmic spikes. This simulation integrates a minimal two-pool (cytosol / ER store) Ca²⁺ oscillator model in real time and renders it as glowing ion clouds around a 3D cell, so you can see how raising the IP3 level speeds up the spike train — the way cells actually encode signal strength as frequency rather than amplitude.