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Self-Assembled Monolayer Formation & Wettability

Watch thiol/silane molecules diffuse across a gold substrate, lock onto docking sites via headgroup-substrate bonding, and lock into a hexagonal-packed self-assembled monolayer (SAM). Switch the tail endgroup between hydrophilic and hydrophobic and test the finished surface with a live water-droplet contact-angle measurement.

Nanotechnology & MEMS3DModerate60 FPS💧 Water

This simulator visualizes self-assembled monolayer (SAM) formation: thiol/silane molecules arriving from solution diffuse across a substrate, chemisorb onto empty docking sites, and pack into a hexagonal-ordered monolayer one molecule thick. Switch the exposed tail endgroup between hydrophilic and hydrophobic chemistry, then drop a water droplet onto the finished surface to measure how the monolayer's surface chemistry sets the contact angle.

⚙ Under the hood

Watch thiol/silane molecules diffuse across a gold substrate, chemisorb onto empty docking sites via headgroup-substrate bonding, and pack into a hexagonal-ordered self-assembled monolayer (SAM) one molecule thick. Switch the tail endgroup between hydrophilic and hydrophobic chemistry, then drop a water droplet onto the finished surface to measure the resulting contact angle.

Three.jsself-assembled monolayerSAMsurface functionalizationwettabilitycontact angle3D

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install