Effect of Superhydrophobic Surface of Titanium on<i>Staphylococcus aureus</i>Adhesion

Tang, Peifu; Zhang, Wei; Wang, Yan; Zhang, Boxun; Wang, Hao; Lin, Changjian; Zhang, Lihai

doi:10.1155/2011/178921

Cited by 124 publications

(85 citation statements)

References 27 publications

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“…[18] These studies have suggested that the reduced surface energy of the superhydrophobic surfaces along with their tendency to reduce protein adsorption to the surface makes it more difficult for bacteria to adhere, reducing adhesion and making it easier to remove those that do attach. [15,18,47] In this work, silanization with the fluorinated silane reduced the surface energy of the NT-S1. For this reason, the reduction in bacteria adhesion on the NT-S1 was expected.…”

Section: Resultsmentioning

confidence: 81%

“…The solid surface energies were determined to be approximately 40 mN/m for Ti and NT, 11 mN/m for NT-S1, and 50 mN/m for NT-S2 through Owens-Wendt analysis, which are consistent with previously published data on titania nanotube arrays. [15,37,40]…”

Section: Resultsmentioning

confidence: 99%

“…A common approach is to modify the surface with antibacterial coatings. [1,15] Other approaches have involved doping materials with silver ions. Silver has been shown to have antibacterial properties, but these surfaces have the same limitations as other antibacterial coatings because the silver ions will eventually diffuse out.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Antibacterial activity on superhydrophobic titania nanotube arrays

Bartlet

Movafaghi

Dasi

et al. 2018

Colloids and Surfaces B: Biointerfaces

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Bacterial infections are a serious issue for many implanted medical devices. Infections occur when bacteria colonize the surface of an implant and form a biofilm, a barrier which protects the bacterial colony from antibiotic treatments. Further, the anti-bacterial treatments must also be tailored to the specific bacteria that is causing the infection. The inherent protection of bacteria in the biofilm, differences in bacteria species (gram-positive vs. gram-negative), and the rise of antibiotic-resistant strains of bacteria makes device-acquired infections difficult to treat. Recent research has focused on reducing biofilm formation on medical devices by modifying implant surfaces. Proposed methods have included antibacterial surface coatings, release of antibacterial drugs from surfaces, and materials which promote the adhesion of non-pathogenic bacteria. However, no approach has proven successful in repelling both gram-positive and gram-negative bacteria. In this study, we have evaluated the ability of superhydrophobic surfaces to reduce bacteria adhesion regardless of whether the bacteria are gram-positive or gram-negative. Although superhydrophobic surfaces did not repel bacteria completely, they had minimal bacteria attached after 24 h and more importantly no biofilm formation was observed.

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Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 99%

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Antibacterial activity on superhydrophobic titania nanotube arrays

Bartlet

Movafaghi

Dasi

et al. 2018

Colloids and Surfaces B: Biointerfaces

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“…Nevertheless, first results in the literature suggest that superhydrophobic surfaces could repel hydrophobic pathogens such as S. aureus. 46,47 A crucial parameter that influences adhesion of bacteria is surface roughness. Roughness on a nanoscale has been shown to be beneficial for P. aeruginosa adhesion on contact lenses made of silicon hydrogel.…”

Section: Discussionmentioning

confidence: 99%

Bacterial adhesion to suture material in a contaminated wound model: Comparison of monofilament, braided, and barbed sutures

Dhom

Bloes

Peschel

et al. 2016

Journal Orthopaedic Research

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Contaminated suture material plays an important role in the physiopathology of surgical site infections. Recently, suture material has been developed characterized by barbs projecting from a monofilament base. Claimed advantages for barbed sutures are a shortened wound closure time and reduced maximum wound tension. It has also been suggested that these sutures would be advantageous microbiologically. The aim of this study was to test the microbiological characteristics of the barbed Quill in comparison to the monofilament Ethilon II and the braided sutures Vicryl and triclosan-coated Vicryl Plus. In our study, sutures were cultivated on color-change agar with Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecium, Escherichia coli, and Pseudomonas aeruginosa and the halo size was measured. In a second study arm with longer cultivation bacterial growth was followed by antibiotic treatment. Ethilon II and Quill showed good comparable results, whereas large halos were found around Vicryl. Vicryl Plus results depended on triclosan sensitivity. After longer bacterial cultivation and antibiotic treatment, halos were up to 3.6 times smaller on Quill than on Vicryl (p < 0.001), but 1.4 times larger than on Ethilon II (p < 0.001) regarding S. aureus. Confocal microscopy analysis showed bacterial colonization between the braided filaments on Vicryl and beneath the barbs on Quill. From a microbiological perspective, barbed sutures can be recommended in aseptic surgery, but should only be used carefully in septic surgery.

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“…Loss of air may account for the small amount of bacterial growth suppression observed. Tang et al [169] used flat TiO 2 surfaces and calcined to form TiO 2 nanotubes, and coated both with perfluorooctyl-triethoxysilane (PTES) to form superhydrophobic and hydrophobic surfaces. The superhydrophobic surfaces resisted S. aureus adhesion compared to unmodified nanotubes and the flat hydrophilic titanium surfaces.…”

Section: Bacterial Interactionsmentioning

confidence: 99%

Superhydrophobic materials for biomedical applications

et al. 2016

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Superhydrophobic surfaces are actively studied across a wide range of applications and industries, and are now finding increased use in the biomedical arena as substrates to control protein adsorption, cellular interaction, and bacterial growth, as well as platforms for drug delivery devices and for diagnostic tools. The commonality in the design of these materials is to create a stable or metastable air state at the material surface, which lends itself to a number of unique properties. These activities are catalyzing the development of new materials, applications, and fabrication techniques, as well as collaborations across material science, chemistry, engineering, and medicine given the interdisciplinary nature of this work. The review begins with a discussion of superhydrophobicity, and then explores biomedical applications that are utilizing superhydrophobicity in depth including material selection characteristics, in vitro performance, and in vivo performance. General trends are offered for each application in addition to discussion of conflicting data in the literature, and the review concludes with the authors’ future perspectives on the utility of superhydrophobic surfaces for biomedical applications.

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Effect of Superhydrophobic Surface of Titanium onStaphylococcus aureusAdhesion

Cited by 124 publications

References 27 publications

Antibacterial activity on superhydrophobic titania nanotube arrays

Antibacterial activity on superhydrophobic titania nanotube arrays

Bacterial adhesion to suture material in a contaminated wound model: Comparison of monofilament, braided, and barbed sutures

Superhydrophobic materials for biomedical applications

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