 Sessile drop technique

The sessile drop technique is a method used in surface science to measure the contact angle of a liquid droplet resting on a solid surface. This technique is important for understanding the wetting properties of surfaces, which have applications in fields such as material science, coatings, and inkjet printing. Here’s how the sessile drop technique works: 1. **Droplet Placement**: A small droplet of liquid is placed onto the solid surface of interest.