Figure 4

Omniphobic properties and stability of oil-infused MOF films compared to electrochemically modified and native Cu foils. Measured static contact angles of water, diiodomethane and actone on (a) untreated and (b–c) oil-infused samples (b) before and (c) after 30 min spray testing. Data points on top of the x-axis indicate complete wetting of the surface. Error bars represent the combined standard uncertainty73.