Extended Data Fig. 9: Effect of the treatment with different self-assembled monolayers (SAM).
From: Tunable critical Casimir forces counteract Casimir–Lifshitz attraction

Side and top view of a cover glass slide half of which has been sputtered with a 30 nm gold layer (left half). The treatment with hydrophilic thiols attached to gold and hydrophobic silanation to glass is visible by the difference of the wetting angle (black dashed line in the side view) and by the spreading (black dashed circle in the top view) of a 10 μL droplet.