Condensation-assisted micro-patterning of low-surface-tension liquids on reactive oil-repellent surfaces

In this work, we reveal a reactive oil-repellent surface as a new platform for surface micro-patterning of low-surface-tension liquid precursors. Fluorescent molecules could be immobilized on the reactive oil-repellent surface by high-density and high-resolution patterning of microdroplets via a synergetic effect of droplet evaporation and condensation-enrichment. We envision that our proposed surface can broaden surface functionalization for analytical and biomedical applications.