Fabrication of superhydrophobic surface by hierarchical growth of lotus-leaf-like boehmite on aluminum foil

Liu, Lijun; Zhao, Jiashou; Zhang, Yi; Zhao, Fan; Zhang, Yanbo

doi:10.1016/j.jcis.2011.02.036

Cited by 95 publications

(56 citation statements)

References 53 publications

(55 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From a fabrication standpoint, the SLIPS lubricant can be chosen from a wide range of biocompatible liquids, while the immobilizing texture of the solid substrate can be derived by simply casting, growing or etching porous texture directly on material surfaces that must remain biofilm-free. For example, a variety of methods to roughen and modify solid substrates of arbitrary geometries, including pipes, have been developed (63)(64)(65), all of which could be converted into SLIPS upon appropriate surface functionalization and addition of a lubricant. Insensitive to the structural details of the underlying porous solid (39), stable when submerged, and showing no degradation under a range of diverse environmental conditions, integrated SLIPS-based surfaces that are both nontoxic and biofilm-resistant hold exciting promise for a range of costand potentially life-saving antifouling applications in the biomedical and industrial spaces.…”

Section: Resultsmentioning

confidence: 99%

Liquid-infused structured surfaces with exceptional anti-biofouling performance

Epstein

Wong

Belisle³

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

832

750

View full text Add to dashboard Cite

Bacteria primarily exist in robust, surface-associated communities known as biofilms, ubiquitous in both natural and anthropogenic environments. Mature biofilms resist a wide range of antimicrobial treatments and pose persistent pathogenic threats. Treatment of adherent biofilm is difficult, costly, and, in medical systems such as catheters or implants, frequently impossible. At the same time, strategies for biofilm prevention based on surface chemistry treatments or surface microstructure have been found to only transiently affect initial attachment. Here we report that Slippery LiquidInfused Porous Surfaces (SLIPS) prevent 99.6% of Pseudomonas aeruginosa biofilm attachment over a 7-d period, as well as Staphylococcus aureus (97.2%) and Escherichia coli (96%), under both static and physiologically realistic flow conditions. In contrast, both polytetrafluoroethylene and a range of nanostructured superhydrophobic surfaces accumulate biofilm within hours. SLIPS show approximately 35 times the reduction of attached biofilm versus best case scenario, state-of-the-art PEGylated surface, and over a far longer timeframe. We screen for and exclude as a factor cytotoxicity of the SLIPS liquid, a fluorinated oil immobilized on a structured substrate. The inability of biofilm to firmly attach to the surface and its effective removal under mild flow conditions (about 1 cm∕s) are a result of the unique, nonadhesive, "slippery" character of the smooth liquid interface, which does not degrade over the experimental timeframe. We show that SLIPS-based antibiofilm surfaces are stable in submerged, extreme pH, salinity, and UV environments. They are low-cost, passive, simple to manufacture, and can be formed on arbitrary surfaces. We anticipate that our findings will enable a broad range of antibiofilm solutions in the clinical, industrial, and consumer spaces.antifouling surfaces | biofilm resistance | slippery materials | surface engineering

show abstract

Section: Resultsmentioning

confidence: 99%

Liquid-infused structured surfaces with exceptional anti-biofouling performance

Epstein

Wong

Belisle³

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

832

750

View full text Add to dashboard Cite

show abstract

“…Rough textured surfaces with liquid repellent properties have shown promising performance for the control of surface fouling [12]. Originally inspired by nature [14,15], such designs impart superhydrophobicity by trapping air pockets within the texture [14][15][16]. However maintaining the stability of such systems can be a challenge because of the fragility of the air pockets that can collapse under the influence of external factors (e.g.…”

Section: Coupled Plasma Atomic Emission Spectroscopy (Icp-aes) Ppy Smentioning

confidence: 99%

Liquid infused porous surfaces for mineral fouling mitigation

Charpentier

Neville

Baudin

et al. 2015

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Preventing mineral fouling, known as scale, is a long-standing problem for a broad range of industrial applications ranging from oil production to water treatment systems to names 2 but a few. The build-up of inorganic scale such as calcium carbonate on surfaces and facilities is undesirable as it can result in safety risks and associated flow assurance issues. To date the overwhelming amount of research has mainly focused on chemical inhibition of scale bulk precipitation and little attention has been paid to deposition onto surfaces. The development of novel more environmentally-friendly strategies to control mineral fouling will most probably necessitate a multifunctional approach including surface engineering. In this study, we demonstrate that liquid infused porous surfaces provide an appealing strategy for surface modification to reduce mineral scale deposition. Microporous polypyrrole (PPy) coatings were fabricated onto stainless steel substrates by electrodeposition in potentiostatic mode. Subsequent infusion of low surface energy lubricants (fluorinated oil Fluorinert FC-70 and ionic liquid 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIm) ) into the porous coatings results in liquid-repellent slippery surfaces.To assess their ability to reduce surface scaling the coatings were subjected to a calcium carbonate scaling environment and the scale on the surface was quantified using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). PPy surfaces infused with BMIm (and Fluorinert to a lesser extent) exhibit remarkable antifouling properties with the calcium carbonate deposition reduced by 18 times in comparison to untreated stainless steel. These scaling tests suggest a correlation between the stability of the liquid infused surfaces in artificial brines and fouling reduction efficiency. The current work shows the great potential of such novel coatings for the management of mineral scale fouling.

show abstract

“…air. This state led to water droplet slide on the surface and move on easily [37]. stearic acid (Fig.…”

Section: Fesem Micrographsmentioning

confidence: 99%

“…These peaks are related to the symmetric bending of -CH 3 -and -CH 2 -groups. The absorption of -COOH from stearic acid molecules presents at 1731 cm -1 that relates to the bond of C=O in the STA[37].The band at 1595 cm -1 vibration of the carboxylate ion (COO -) appears after STA adsorption[38]. The appearance of this peak after chemical modification of the surface, confirms the reaction of carboxyl groups (-COOH) of the stearic acid and Al-(OH) of the coated aluminum[37].…”

mentioning

confidence: 91%