Staphylococcus epidermidis adhesion to He, He/O2 plasma treated PET films and aged materials: Contributions of surface free energy and shear rate

Katsikogianni, Maria G.; Amanatides, E.; Mataras, D.; Missirlis, Yannis F.

doi:10.1016/j.colsurfb.2008.04.017

Cited by 49 publications

(33 citation statements)

References 52 publications

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“…Numerous studies (eg Dexter 1979;Baier and Meyer 1992;Zhao et al 2009) have demonstrated a zone of minimal adhesion for surfaces with surface energy values between 20 and 30 mJ m 72 and this has become known as the 'Baier minimum', a reference to an empirical observation of the dependence of microbial adhesion on surface energy presented by Baier and DePalma (1971). Importantly, however, most studies that have attempted to correlate adhesion to surface energy have focused on experiments employing microorganisms for their conclusions (Ista et al 2004;Zhao et al 2004;Katsikogianni et al 2008;Li et al 2010) or involve complex systems, such as natural aqueous solutions (Dexter 1979). There have also been attempts to explain observations in the context of theoretical models (Dexter 1979;Brady 1999).…”

Section: Please Scroll Down For Articlementioning

confidence: 97%

Effects of surface charge and Gibbs surface energy on the settlement behaviour of barnacle cyprids (Balanus amphitrite)

et al. 2011

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Gibbs surface energy has long been considered to be an important parameter in the design of fouling-resistant surfaces for marine applications. Rigorous testing of the hypothesis that settlement is related to Gibbs surface energy however has never been accomplished, due mainly to practical limitations imposed by the necessary combination of surface engineering and biological evaluation methods. In this article, the effects of surface charge and Gibbs surface energy on the settlement of cyprids of an important fouling barnacle, Balanus amphitrite, were evaluated. Settlement assays were conducted on a range of self-assembled monolayers (SAMs) (CH(3)-, OH-, COOH-, N(CH(3))(3) (+)-, NH(2)-terminated), presented in gold-coated polystyrene well plates, varying in terms of their surface charge and Gibbs surface energy. Contrary to contemporary theory, settlement was not increased by high-energy surfaces, rather the opposite was found to be the case with cyprids settling in greater numbers on a low-energy CH(3)- SAM compared to a high-energy OH- SAM. Settlement was also greater on negatively-charged SAMs, compared to neutral and positively-charged SAMs. These findings are discussed in the context of data drawn from surfaces that varied in multiple characteristics simultaneously, as have been used previously for such experiments. The finding that surface charge, rather than total surface energy, may be responsible for surface selection by cyprids, will have significant implications for the design of future fouling-resistant materials.

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Section: Please Scroll Down For Articlementioning

confidence: 97%

Effects of surface charge and Gibbs surface energy on the settlement behaviour of barnacle cyprids (Balanus amphitrite)

et al. 2011

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“…However, pellicle on low-energy surface (hydrophobic) was thicker and more loosely bound. Moreover, the surface area of plaque accumulation is less on low-energy (hydrophobic) surface than on high-energy (hydrophilic) surfaces (Andrade et al 1992;Katsikogianni et al 2008;Mikhail et al 2013). …”

Section: Contact Angle Measurementmentioning

confidence: 98%

“…The adhesion of cells on biomaterials is an example that describes the importance of surface topography of a substrate surface where the cells are cultured. There are various studies aimed to evaluate the relationship between surface topography and cell adhesion (Katsikogianni et al 2008;Faeda et al 2009;Ho-Nam et al 2009;Ansalme et al 2011;Galasso et al 2011;Crawford et al 2012;Huang et al 2014). The studies of cell-substratum interactions are often complicated by the presence of different types of surface pattern.…”

Section: Surface Topographymentioning

confidence: 98%

Bioadhesion of Biomaterials

Sunarintyas

2016

Advanced Structured Materials

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Biomaterials are widely used in many kinds of medical devices. The biomaterials used can be metal, polymer, ceramic or composites. Bioadhesion will be occured when the medical device contact to biological surface. There are many conditions where bioadhesion is beneficial and vice versa. The implantation of medical devices in the human body is not without risk. It is reported that implantable medical devices are an ideal interface for microorganisms. There are infections caused mainly by bacteria originating in the body. Some aspects influence bioadhesion of implantable medical devices including surface topography, chemical interaction, mechanical interaction and physiological interactions are discussed. The understanding of such aspects hopefully governs medical practitioners in controlling the medical devices bioadhesion process, then optimizing the desirable bioadhesion and removing the undesirable interactions. To complete the discussion on bioadhesion of biomaterials, it is also described some methods of bioadhesion testing including surface roughness measurement, contact angle measurement, surface topography evaluation and biofilm formation testing. At last, a perspective related to biomaterials used as medical devices is presented.

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“…PEG and PEO are chemically synonymous and we use the two terms interchangeably. Historically PEG has been used for oligomers and polymers with a molecular mass below 20,000 g mol −1 , whereas PEO refers more to polymers with a molecular mass above 20,000 g mol −1 ] layers, poly(methyl methacrylate) (PMMA), or plasma treated polymer surfaces with hydrophilic groups [41][42][43][44][45][46][47][48].…”

Section: Materials Surface Characteristicsmentioning

confidence: 99%

“…He and He/O 2 plasma treatment of poly(ethylene terephthalate) (PET) surfaces and oxygen glow discharge treatment of poly(vinyl chloride) (PVC) endotracheal tubes have been demonstrated to reduce adhesion of S. epidermidis [41,46,47]. In order to overcome the protein fouling problem in protein filtration membranes, nitrogen-based plasma systems, such as N 2 , NH 3 , Ar/NH 3 , and O 2 /NH 3 have been used to incorporate hydrophilic surface chemistry onto different polymer substrates such as microporous polyethersulfone membranes [160], PP microfiltration membranes [161] and PP hollow fiber microporous membranes [162].…”

Section: Plasma Surface Functionalizationmentioning

confidence: 99%