Drying capillary bridge loaded with colloidal particles offers more controlled particle deposition via droplet evaporation than previously possible

 https://sciencex.com/news/2022-01-capillary-bridge-colloidal-particles-tunable.html

"entrapping fluid between solid surfaces sufficiently close to each other. We observed the evaporation of liquid suspensions containing colloidal particles between parallel plates. In this case, apart from the parameters mentioned above for droplets, it becomes possible to control the gap between surfaces, the dimensions of plates, and the nature of the two plates"