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Nature‐Inspired Substrate‐Independent Omniphobic and Antimicrobial Slippery Surfaces

Nature‐Inspired Substrate‐Independent Omniphobic and Antimicrobial Slippery Surfaces IntroductionLiquid repellent slippery liquid‐infused porous surfaces (SLIPS) have been inspired by the carnivorous Nepenthes pitcher plant, in which a nectar film entrapped within a textured surface on the plant peristome is used to attract and capture arthropod prey.[1–5] In the past, SLIPS have been fabricated by impregnating a roughened or porous surface with a lubricating liquid. The lubricant must be able to wet and adhere to the host surface in preference to the liquid which is being repelled, and the lubricant needs to be immiscible with the liquid being repelled. This can be achieved through careful matching of the solid surface and lubricant chemistries. Slippery lubricant‐infused surfaces have been proposed for a wide variety of technological and societal applications including water repellency,[5] antibacterial,[6] marine antibiofouling,[7] blood repellency,[8] icephobicity,[9] anti‐icing,[10] corrosion resistance,[10] mineral fouling mitigation,[11] droplet motion control,[12] water harvesting,[13] fog collection,[14] antireflectivity,[15] antifouling of foodstuffs,[16] antifouling of fecal matter,[17] underwater bubble transportation,[18] and drag reduction.[19] Prevention of bacterial biofilm formation and surface fouling are of considerable societal importance, particularly in the healthcare and medical settings (e.g., the vast majority of catheter‐associated urinary tract infections are caused by biofilms formed on the catheters).[20] In the marine environment on the hulls http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Engineering Materials Wiley

Nature‐Inspired Substrate‐Independent Omniphobic and Antimicrobial Slippery Surfaces

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References (7)

Publisher
Wiley
Copyright
© 2022 Wiley‐VCH GmbH
eISSN
1527-2648
DOI
10.1002/adem.202101288
Publisher site
See Article on Publisher Site

Abstract

IntroductionLiquid repellent slippery liquid‐infused porous surfaces (SLIPS) have been inspired by the carnivorous Nepenthes pitcher plant, in which a nectar film entrapped within a textured surface on the plant peristome is used to attract and capture arthropod prey.[1–5] In the past, SLIPS have been fabricated by impregnating a roughened or porous surface with a lubricating liquid. The lubricant must be able to wet and adhere to the host surface in preference to the liquid which is being repelled, and the lubricant needs to be immiscible with the liquid being repelled. This can be achieved through careful matching of the solid surface and lubricant chemistries. Slippery lubricant‐infused surfaces have been proposed for a wide variety of technological and societal applications including water repellency,[5] antibacterial,[6] marine antibiofouling,[7] blood repellency,[8] icephobicity,[9] anti‐icing,[10] corrosion resistance,[10] mineral fouling mitigation,[11] droplet motion control,[12] water harvesting,[13] fog collection,[14] antireflectivity,[15] antifouling of foodstuffs,[16] antifouling of fecal matter,[17] underwater bubble transportation,[18] and drag reduction.[19] Prevention of bacterial biofilm formation and surface fouling are of considerable societal importance, particularly in the healthcare and medical settings (e.g., the vast majority of catheter‐associated urinary tract infections are caused by biofilms formed on the catheters).[20] In the marine environment on the hulls

Journal

Advanced Engineering MaterialsWiley

Published: Jun 1, 2022

Keywords: antimicrobial; liquid repellency; multifunctional; omniphobic; plasmachemical depositions; slippery surfaces

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