Plasma surface modification of poly vinyl chloride for improvement of antibacterial properties

Zhang, Wei; Chu, Paul K.; Ji, Junhui; Zhang, Yihe; Liu, Xuanyong; Fu, Ricky K.Y.; Ha, Peter; Yan, Qi

doi:10.1016/j.biomaterials.2005.05.067

Cited by 131 publications

(100 citation statements)

References 33 publications

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“…Hydrophilization of polyesters is essential for numerous applications of PLA and PET, ranging from textiles to composites and medical devices [1,16]. Typically, chemical methods [17,18] or plasma technology are used to increase the hydrophilicity of polymers [19,20] or to create reactive groups on the surface of inert materials [21]. Enzyme-based approaches would avoid the use of harsh chemicals [22] and/or require considerable less energy [23].…”

Section: Introductionmentioning

confidence: 99%

A New Esterase from Thermobifida halotolerans Hydrolyses Polyethylene Terephthalate (PET) and Polylactic Acid (PLA)

et al. 2012

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Abstract:A new esterase from Thermobifida halotolerans (Thh_Est) was cloned and expressed in E. coli and investigated for surface hydrolysis of polylactic acid (PLA) and polyethylene terephthalate (PET). Thh_Est is a member of the serine hydrolases superfamily containing the -GxSxG-motif with 85-87% homology to an esterase from T. alba, to an acetylxylan esterase from T. fusca and to various Thermobifida cutinases. Thh_Est hydrolyzed the PET model substrate bis(benzoyloxyethyl)terephthalate and PET releasing terephthalic acid and mono-(2-hydroxyethyl) terephthalate in comparable amounts (19.8 and 21.5 mmol/mol of enzyme) while no higher oligomers like bis-(2-hydroxyethyl) terephthalate were detected. Similarly, PLA was hydrolyzed as indicated by the release of lactic acid. Enzymatic surface hydrolysis of PET and PLA led to a strong hydrophilicity increase, as quantified with a WCA decrease from 90.8° and 75.5° to 50.4° and to a complete spread of the water drop on the surface, respectively. OPEN ACCESSPolymers 2012, 4 618

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Section: Introductionmentioning

confidence: 99%

A New Esterase from Thermobifida halotolerans Hydrolyses Polyethylene Terephthalate (PET) and Polylactic Acid (PLA)

et al. 2012

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“…From research such as this, it is possible to foresee that plasma-based technologies could potentially be used for polymeric biomaterials in order to improve upon their bioactivity for use in biological environments. Plasma surface treatments have also been extensively used in the production of surfaces to control and investigate bacterial adhesion on numerous material types [148][149][150][151][152][153][154][155]. Plasma immersion ion implantation has been applied to surface treat poly(vinyl chloride) (PVC) [153] to successfully improve the antibacterial properties with specific regard to Staphylococcus aureus and E. coli.…”

Section: Figure 7: Sem Images Of (A) As-received and (B) Plasma Surfamentioning

confidence: 99%

“…Plasma surface treatments have also been extensively used in the production of surfaces to control and investigate bacterial adhesion on numerous material types [148][149][150][151][152][153][154][155]. Plasma immersion ion implantation has been applied to surface treat poly(vinyl chloride) (PVC) [153] to successfully improve the antibacterial properties with specific regard to Staphylococcus aureus and E. coli. This has been further evidenced with Staphylococcus aureus and Staphylococcus epidermis on plasma-treated poly(ethylene terephthalate) (PET) [150,155], E. coli on plasma-treated polyurethane (PU) [152] and Pseudomonas aeruginosa on plasma-treated) PVC [151].…”

Section: Figure 7: Sem Images Of (A) As-received and (B) Plasma Surfamentioning

confidence: 99%

“…Having said this, it has been observed that the modified surface properties deteriorate just over a week [153] which has implications in applying this technology to the microbiological industry. What is more, even after some of the techniques show an increase in antibacterial activity of up to 50%, in many cases this was not enough to eradicate bacterial colonization [151] and, ultimately, requires further investigation to bring about this eradication using plasma-based technologies.…”

Section: Figure 7: Sem Images Of (A) As-received and (B) Plasma Surfamentioning

confidence: 99%

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Surface Treatments to Modulate Bioadhesion: A Critical Review

Waugh¹,

Toccaceli²,

Gillett³

et al. 2016

rev adhes adhesives

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On account of the recent increase in importance of biological and microbiological adhesion in industries such as healthcare and food manufacturing many researchers are now turning to the study of materials, wettability and adhesion to develop the technology within these industries further. This is highly significant as the stem cell industry alone, for example, is currently worth £3.5 million in the United Kingdom (UK) alone. This paper reviews the current state-of-the-art techniques used for surface treatment with regards to modulating biological adhesion including laser surface treatment, plasma treatment, micro/nano printing and lithography, specifically highlighting areas of interest for further consideration by the scientific community. What is more, this review discusses the advantages and disadvantages of the current techniques enabling the assessment of the most attractive means for modulating biological adhesion, taking in to account cost effectiveness, complexity of equipment and capabilities for processing and analysis.

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“…Polyvinylchloride, a polymer which is used for endotracheal tubes and catheters, was equipped with triclosan and bronopol, compounds with immediate and persistent broad-spectrum antimicrobial effects, after the surface was activated with oxygen plasma to produce more hydrophilic groups for effective coating (Zhang et al, 2006). Experiments using Staphylococcus aureus and Escherichia coli demonstrated the effectiveness of these surfaces.…”

Section: Implant Surfaces With Antibacterial Propertiesmentioning

confidence: 99%