Photochemically Catalysed Polymerisation of 3-Trimethoxysilylpropyl Methacrylate Containing Silver, Copper and Zinc Ions

Makova, Veronika

doi:10.13168/cs.2018.0028

Cited by 2 publications

(3 citation statements)

References 36 publications

(38 reference statements)

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“…This basic polymer can be modified by suitable addition of other raw materials into an initial solution on the hydrophobic nanolayers (i.e., by adding hexadecyltrimethoxysilane with functional hexadecyl group) or by adding cations of suitable metals (silver-Ag, copper-Cu, and zinc -Zn) on antimicrobial (and also antiviral and fungicide) nanolayers. Preparation and properties of these nanolayers have been published [66][67][68][69][70][71] and also patented [72][73][74].…”

Section: Sol-gel Methodsmentioning

confidence: 99%

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Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Škach,

Šlamborová,

Jelínek Šourková

et al. 2023

Eur Surg Res

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Introduction: The aim of this work is the evaluation of surface modification in surgery of normally used hernia implants and thus improving their antimicrobial properties. The modification consisted of applying hybrid nanolayers with immobilized antiseptic substances (metal cations of Ag, Cu and Zn) by sol-gel method which ensures prolonged effect of these substances and thus enables a greater resistance of the implant towards infection. In this work attention is drawn to the issue of applying hybrid nanolayers, activation of mesh surfaces by physical plasma modification or UV C radiation and influence of these modifications on the mechanical properties of the final meshes. Next work will continue concentrating on the issue of antimicrobial efficacy and eventual toxicity of the prepared layers. Materials and methods: Present day materials of the most commonly used types of implants for reconstruction of the abdominal wall in surgery (PP, PES, PVDF) were tested. Optimum conditions of application of nanolayers by sol-gel method and their thermal stabilization were examined first. Surface modification was verified by scanning electron microscope. The surface of implants was first activated for better adhesion by plasma treatment or UV radiation after preliminary tests. Maximum strength and ductility after activation and hybrid nanolayer modification were objectively measured on a universal Testometric tensile testing machine. Results: The results of surface activation of the meshes (by both plasma treatment or UV C radiation) provided similar and satisfactory results, particular conditions differed based on the type of material of the mesh. Usage of antimicrobial sol AD30 diluted by isopropyl alcohol in 1: 1 proportion appear to be optimal. All tested cases of meshes activated by plasma modification or UV C radiation and with applied nanolayer concluded in a slight reduction of mechanical properties in modified meshes in comparison with the original ones. However, a slight reduction of test values were not of clinical importance. Conclusion: It was verified that surface modification of implants by sol-gel method is effective and technically possible, providing hopeful results.

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Section: Sol-gel Methodsmentioning

confidence: 99%

“…Total concentration of dry mass (of resulting nanolayer weight) was 4.8 g/ 100 mL in the concentrated sol. Preparation and properties of this sol and resulting nanolayer have been published [66][67][68][69][70][71], and the synthesis procedure was described in patents [72][73][74].…”

Section: Antimicrobial Solmentioning

confidence: 99%

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Škach,

Šlamborová,

Jelínek Šourková

et al. 2023

Eur Surg Res

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“…Further, these AAO films allow further modifications by incorporation of various metals, and especially silver. 27,28 The catalytic properties, inherent for silver and its apparent chemical resistivity have opened another main field of intensive research activities on efficient and durable catalytic silver films, [29][30][31][32][33][34][35] and especially Ag/Al 2 O 3 conjunctions. 36,37 These properties are successfully applied for the environmental protection by contaminant gas reduction.…”

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confidence: 99%

Elucidation of the Anodization and Silver Incorporation Impact on the Surface Properties of AA1050 Aluminum Alloy

Kozhukharov¹,

Girginov²,

Tsanev³

et al. 2019

J. Electrochem. Soc.

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The recently increased interest toward the modification of anodized aluminum oxide (AAO) layers has motivated the present systematical research. The experiments were comprised of three groups of AA1050 alloy samples: preliminary treated, anodized and further AAO layer modification, using AC-assisted silver incorporation. The respective impact of the surface treatment was assessed using different analytical methods, in order to obtain systematical information on the variation of the surface properties, morphology and performance of the obtained Al-O-Ag films. The analyses included determination of the sample color, hydrophobicity and mechanical strength. These measurements were followed by characterization of their morphology by scanning electron microscopy and composition by energy dispersion X-ray analysis and X-ray photoelectron spectroscopy. These characterizations were completed by the assessment of the samples' performance, after 168 hours of exposure to a 3.5% NaCl model corrosive medium. The corrosion evaluation tests included electrochemical impedance spectroscopy and potentiodynamic scanning. The comparative analysis of the acquired results has enabled us to do a comprehensive description of the mechanism of the AC-assisted Ag-incorporation and its impact on the modified AAO films. The obtained Al-O-Ag functional layers have shown remarkable reliability, being appropriate for various industrial applications.

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Photochemically Catalysed Polymerisation of 3-Trimethoxysilylpropyl Methacrylate Containing Silver, Copper and Zinc Ions

Cited by 2 publications

References 36 publications

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Elucidation of the Anodization and Silver Incorporation Impact on the Surface Properties of AA1050 Aluminum Alloy

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