Slips surface based on metal-contaning compound

Abstract

A method of preparing an article having a slippery surface includes providing a metal-containing surface, chemically modifying the metal-containing surface to roughen the metal-containing surface, and disposing a lubricating layer on the roughened metal-containing surface, wherein the lubricating layer is substantially stabilized on the roughened metal-containing surface.

What is claimed is: 
     
         1 . An article having a repellant surface, comprising:
 a substrate;   a porous layer on the substrate comprising metal oxide;   an adhesion-promoting layer between the substrate and the porous layer; and   a lubricant layer wetting and adhering to the porous layer,   wherein the lubricant layer is substantially stabilized on the porous layer to form a repellant surface.   
     
     
         2 . The article of  claim 1 , wherein the porous layer comprises dopamine.