Fluorogel Elastomers with Tunable Transparency, Elasticity, Shape‐Memory, and Antifouling Properties

Yao, Xi; Dunn, Stuart S.; Kim, Philseok; Duffy, Meredith; Alvarenga, Jack; Aizenberg, Joanna

doi:10.1002/ange.201310385

Cited by 20 publications

(8 citation statements)

References 27 publications

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“…268 The resulting original omniphobic fluorogel elastomers displayed a broad range of optical and mechanical properties by tuning the chemical composition or the temperature that controlled the crystallinity of the resulting polymeric chains. These fluorogels also exhibited excellent resistance to wetting by various liquids, some antibiofouling properties, a shape-memory behavior, and maintained cytocompatibility.…”

Section: Fluorogelsmentioning

confidence: 99%

Fluorinated Oligomers and Polymers in Photopolymerization

2015

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Section: Fluorogelsmentioning

confidence: 99%

Fluorinated Oligomers and Polymers in Photopolymerization

2015

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“…2 This provides inspiration for a new class of antibiofouling materials with a surface liquid layer, which is immobilized on a rough solid due to capillary forces and chemical affinity and which creates a low-adhesion interface. Such bio-inspired slippery liquid-infused porous surfaces (SLIPS) 43 have shown promising anti-bacterial performance in a polytetrafluoroethylene (PTFE)-based system, 44 and more recently in fluorogels 45 and vascularized polymer networks 46 . It would be beneficial to design slippery surfaces with a stable and continuously replenishable lubricant layer, particularly for medical tubing and catheter-relevant materials such as polyurethane and silicone and other flow-exposed medical materials, on which bacteria are known to attach and form biofilms within hours.…”

Section: Introductionmentioning

confidence: 99%

Liquid-Infused Silicone As a Biofouling-Free Medical Material

MacCallum

Howell

Kim

et al. 2014

ACS Biomater. Sci. Eng.

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248

285

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There is a dire need for infection prevention strategies that do not require the use of antibiotics, which exacerbate the rise of multi-and pan-drug resistant infectious organisms. An important target in this area is the bacterial attachment and subsequent biofilm formation on medical devices (e.g., catheters). Here we describe non-fouling, lubricant-infused slippery polymers as proof-of-concept medical materials that are based on oil-infused polydimethylsiloxane (iPDMS). Planar and tubular geometry silicone substrates can be infused with non-toxic silicone oil to create a stable, extremely slippery interface that exhibits exceptionally low bacterial adhesion and prevents biofilm formation. Analysis of a flow culture of Pseudomonas aeruginosa through untreated PDMS and iPDMS tubing shows at least an order of magnitude reduction of biofilm formation on iPDMS, and almost complete absence of biofilm on iPDMS after a gentle water rinse. The iPDMS materials can be applied as a coating on other polymers or prepared as simply as taking a silicone tubing and immersing it in a silicone oil, and are compatible with traditional sterilization methods. As a demonstration, we show the preparation of silicone-coated polyurethane catheters and significant reduction of Escherichia coli and Staphylococcus epidermidis biofilm formation on the catheter surface. This work represents an important first step towards a simple and effective means of preventing bacterial adhesion on a wide range of materials used for medical devices.

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“…It has been proven that many low surface energy materials, such as fluorinated polymers and siloxane, can weaken or minimize the interaction strength of polar or hydrogen bonding between foulants and membrane surfaces so as to promote the release of the attached foulants by hydraulic shear forces. 28,29 Previous publications demonstrated that Poly(ether sulfone) (PES) membranes modified by fluorine-containing modifiers exhibited low surface energies, high chemical resistance, and good mechanical strength. 30,31 In comparison to the unmodified PES membranes, surfacemodified PES membranes were susceptible to less fouling in the treatment of cutting machine oil/water emulsion by ultrafiltration, and could be effectively used to remove chloroform from water by pervaporation.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic poly(ether sulfone) membranes for oil/water separation: Effect of sequence structure of the modifier

et al. 2016

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Oil‐contaminated wastewater threatens our environment and health thus novel membrane materials with low or nonfouling properties are an immediate need for oily wastewater treatment in a cost‐effective and environmentally friendly manner. In this study, three types of amphiphilic random, gradient, and block copolymers with similar molecular weights and chemical compositions, based on poly(ethylene glycol) methyl ether methacrylate (PEGMA) and 3,3,4,4,5,5,6,6,7,7,8,8,8‐tridecafluorooctyl acrylate (TFOA), were synthesized by the reversible addition‐fragmentation chain transfer (RAFT) method. The amphiphilic Poly(ether sulfone) membranes were then fabricated by blending with these copolymers via a facile coupled process of nonsolvent induced phase separation and surface segregation. Accompanying the phase inversion process of polymer matrix, the hydrophilic and hydrophobic segments in the amphiphilic modifiers would migrate and immobilize onto the membrane surfaces. This surface segregation process leaded to a chemical heterogeneous membrane surface comprising both hydrophilic PEGMA and low surface energy PTFOA brushes, which was confirmed by X‐ray photoelectron spectroscopy (XPS) and surface wettability analyses. Oil‐in‐water emulsion filtration test of the membranes displayed a lower permeate flux decline and a higher flux recovery (as high as 99.8%), establishing their considerably elevated antifouling properties. Additionally, cyclic oil/water separation and long‐term underwater immersion tests demonstrated that the as‐prepared membranes modified by these amphiphilic additives possessed excellent antifouling stabilities. © 2016 American Institute of Chemical Engineers AIChE J, 63: 739–750, 2017

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Fluorogel Elastomers with Tunable Transparency, Elasticity, Shape‐Memory, and Antifouling Properties

Cited by 20 publications

References 27 publications

Fluorinated Oligomers and Polymers in Photopolymerization

Fluorinated Oligomers and Polymers in Photopolymerization

Liquid-Infused Silicone As a Biofouling-Free Medical Material

Amphiphilic poly(ether sulfone) membranes for oil/water separation: Effect of sequence structure of the modifier

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