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P. aeruginosa biofilm puddles grown for 24 h on a PTFE porous surface and a PTFE SLIPS surface infused with Krytox 103, before (A) and after (B) being tilted to test biofilm adhesion. A robust, ingrown, and therefore pinned biofilm forms on the control PTFE substrate, whereas biofilm on the SLIPS substrate slides readily without leaving any slime film or other visible residue (see Movie S2).
