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SUMMARY:Multifunctionality of Liquid-filled Porous Materials: From Encrypt
 ion to Anti-Fouling - Professor Joanna Aizenberg\, Harvard
DTSTART:20150507T150000Z
DTEND:20150507T160000Z
UID:TALK57258@talks.cam.ac.uk
CONTACT:Sian Bunnage
DESCRIPTION:Liquids entrapped within a structured solid begin to exhibit u
 nique behaviors often providing the surrounding material with unprecedente
 d properties. Recently we have developed two award-winning materials platf
 orms (R&D 100 awards in 2012 and 2013)\, both based on the infusion of a l
 iquid into a porous substrate.  First\, we introduced a new strategy to cr
 eate self-healing\, anti-fouling materials (so-called Slippery\, Lubricant
 -Infused Porous Surfaces\, or SLIPS) that outperform state-of-the-art mate
 rials in their ability to resist ice and microbial adhesion and repel vari
 ous simple and complex liquids. Second\, we pioneered a technique for patt
 erning 3D photonic crystals\, generating complex wettability patterns\, an
 d illustrated multilevel encryption\, with selective decoding by specific 
 liquids\, so-called Watermark Ink\, or W-INK. Generalized\, low-cost\, and
  scalable methods to manufacture SLIPS and W-Ink on glass\, ceramics\, pol
 ymers\, fabrics and metals will be presented. We anticipate that slippery 
 surfaces can find important applications as antifouling materials in medic
 ine\, construction\, fluid handling and transportation\, while chemically 
 patterned photonic structures can serve as colorimetric indicators for liq
 uids\, or used in encryption and anti-tampering applications.
LOCATION:Wolfson Lecture Theatre
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