Multiple surface properties of worn RGP lenses and adhesion of Pseudomonas aeruginosa

Bruinsma, Gerda M.; Rustema-Abbing, Mina; Vries, J. de; Busscher, Henk J.; Linden, Matthijs L van der; Hooymans, Johanna M. M.; Mei, Henny C. van der

doi:10.1016/s0142-9612(02)00542-2

Cited by 64 publications

(81 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An influence of nanometer-scale roughness on the deposition of P. aeruginosa to contact lenses was also observed by Bruinsma et al (2003). This influence of nanometer-scale roughness is surprising and indicates that adhesion of bacteria is mediated by structures much smaller than the bacterium itself, like fimbriae, flagella or polymeric substances excreted by bacteria.…”

Section: Discussionmentioning

confidence: 91%

Multiple linear regression analysis of bacterial deposition to polyurethane coatings after conditioning film formation in the marine environment

et al. 2004

View full text Add to dashboard Cite

Many studies have shown relationships of substratum hydrophobicity, charge or roughness with bacterial adhesion, although bacterial adhesion is governed by interplay of different physico-chemical properties and multiple regression analysis would be more suitable to reveal mechanisms of bacterial adhesion. The formation of a conditioning film of organic compounds adsorbed from seawater affects the properties of substratum surfaces prior to bacterial adhesion, which is a complicating factor in studying the mechanism of bacterial adhesion. In this paper, the impact of conditioning films adsorbed from natural seawater to four polyurethane coatings with different hydrophobicity, elasticity and roughness was studied for three different marine bacterial strains in a multiple linear regression analysis. The water contact angle on hydrophobic coatings decreased on average by 8 degrees and increased on average by the same amount on hydrophilic coatings. These changes were accompanied by increased concentrations of oxygen and nitrogen on the surface as determined by X-ray photoelectron spectroscopy, indicative of adsorption of proteinaceous material. Furthermore, the mean surface roughness increased on average by 4 nm after conditioning film formation. Multiple linear regression analysis revealed that changes in deposition due to conditioning film formation of Marinobacter hydrocarbonoclasticus, Psychrobacter sp. SW5H and Halomonas pacifica in a stagnation-point flow chamber could be explained in a model comprising hydrophobicity and the prevalence of nitrogen-rich components on the surface for the most hydrophobic strain. For the two more hydrophilic strains, deposition was governed by a combination of surface roughness and hydrophobicity. Elasticity was not a factor in bacterial adhesion to conditioning films.

show abstract

Section: Discussionmentioning

confidence: 91%

Multiple linear regression analysis of bacterial deposition to polyurethane coatings after conditioning film formation in the marine environment

et al. 2004

View full text Add to dashboard Cite

show abstract

“…Roughness on a nanoscale has been shown to be beneficial for P. aeruginosa adhesion on contact lenses made of silicon hydrogel. 48 In two recent studies investigating the adherence of bacteria to medicinally used titanium, the investigators reported that both S. aureus and P. aeruginosa adhered better to the specifically treated and thus on a nanoscale rougher titanium surface than they did to a smooth surface equivalent. 49 Thereby, the observed interspecies differences in adherence could be ascribed to the morphological characteristics of the bacteria.…”

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

View full text Add to dashboard Cite

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.

show abstract

“…Atomic force microscopy (AFM) provides detailed information on the surface characteristics of contact lenses (Bhatia et al, 1997;Baguet et al, 1993;Baguet et al, 1995;Bruinsma et al, 2003;Lira et al, 2008;Guryca et al, 2007;Gonzalez-Meijome et al, 2006a;Gonzalez-Meijome et al, 2009;Teichroeb et al, 2008;Maldonado-Codina and Efron, 2005) and is a powerful tool for the high resolution examination of the structure of the hydrated contact lens surface. The method has the advantages that it avoids artefacts due to dehydration and coating (Bhatia et al, 1997;Kim et al, 2002), and allows for non-destructive surface topography and roughness measurements.…”

Section: Atomic Force Microscopymentioning

confidence: 99%

“…In effect, AFM has proved useful for characterizing tear deposits on worn soft contact lens surfaces (Baguet et al, 1995;Rebeix et al, 2000) or characterizing the rigid gas permeable contact lens surface (Bruinsma et al, 2003). In fact, detailed information about the surface quality of CL has been studied previously by Atomic Force Microscopy (AFM) (Bhatia et al, 1997;Baguet et al, 1993;Baguet et al, 1995;Bruinsma et al, 2003;Gonzalez-Meijome et al, 2006a;Gonzalez-Meijome et al, 2009;Giraldez et al, 2010c) and Cryo-SEM (Gonzalez-Meijome et al, 2006b;Guryca et al, 2007). AFM is a very powerful tool for high resolution examination of hydrated CL surface structure.…”

Section: Atomic Force Microscopymentioning

confidence: 99%

“…Thus, the results of several in vivo studies suggest that a rougher CL surface is prone to more extensive bacterial adhesion (Bruinsma et al, 2002;Bruinsma et al, 2003) since imperfections in the lens surface is where deposits are likely to form (Hosaka et al, 1983). Also, depending on the surface thermodynamics, hydrophilic strains seem to preferentially adhere to hydrophilic surfaces, while more hydrophobic strains have a preference for hydrophobic surfaces (Bos et al, 1999;Bruinsma et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hydrogel Contact Lenses Surface Roughness and Bacterial Adhesion

Giráldez¹,

Yebra‐Pimentel²

2012

Ocular Diseases

View full text Add to dashboard Cite

Multiple surface properties of worn RGP lenses and adhesion of Pseudomonas aeruginosa

Cited by 64 publications

References 16 publications

Multiple linear regression analysis of bacterial deposition to polyurethane coatings after conditioning film formation in the marine environment

Multiple linear regression analysis of bacterial deposition to polyurethane coatings after conditioning film formation in the marine environment

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

Hydrogel Contact Lenses Surface Roughness and Bacterial Adhesion

Contact Info

Product

Resources

About