Manipulating Pico- to Nanoliter Droplets on Surfaces without Sticking.

ABSTRACT: Droplet manipulation on surfaces is ubiquitous in many industrial fields. Liquid-repellent surfaces are required to facilitate manipulation because sticking restricts droplet motion. Various liquid-repellent surfaces have been used to manipulate microliter droplets. However, classical surfaces suffer from the repellence of pico- to nanoliter droplets. This study demonstrates the nonsticking property of pico- to nanoliter droplets on surfaces when it is coated with low-surface-energy particles with nano-micrometer hierarchy. The dynamic particle coating of ultrasonic-sprayed droplets enables the formation of highly spherical, isolated, particle-coated picoliter droplets. The particle coating changes the solid-liquid interfacial friction to solid-solid interfacial friction and reduces the fo

SUBMITTER: Tenjimbayashi M 

PROVIDER: S-EPMC12632165 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature