Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Géczi, Zoltán; Hermann, Péter; Kőhidai, László; Láng, Orsolya; Kőhidai, Zsófia; Mészáros, Tamás; Barócsi, Attila; Lenk, Sándor; Zelles, T

doi:10.1155/2018/1048734

Cited by 12 publications

(6 citation statements)

References 42 publications

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“…Therefore, PEI is a highly branched cationic polymer, which makes it exhibit very good adhesion on the surface of the substrate [ 42 , 43 , 44 ]. According to Zoltán Géczi et al (2018) [ 45 ], a Ag-PEI-PLA composite can be effectively used to coat the inner surface of acrylic dentures with antibacterial ability. However, the dispersion and adhesion of silver particles on metal substrates were not studied in any of the above-mentioned literature.…”

Section: Resultsmentioning

confidence: 99%

A Novel Method for the Fabrication of Antibacterial Stainless Steel with Uniform Silver Dispersions by Silver Nanoparticle/Polyethyleneimine Composites

et al. 2023

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Only a few studies have so far focused on the addition of silver to SS316L alloys by conventional sintering methods. Unfortunately, the metallurgical process of silver-containing antimicrobial SS is greatly limited due to the extremely low solubility of silver in iron and its tendency to precipitate at the grain boundaries, resulting in an inhomogeneous distribution of the antimicrobial phase and loss of antimicrobial properties. In this work, we present a novel approach to fabricate antibacterial stainless steel 316L by functional polyethyleneimine-glutaraldehyde copolymer (PEI-co-GA/Ag catalyst) composites. PEI is a highly branched cationic polymer, which makes it exhibit very good adhesion on the surface of the substrate. Unlike the effect of the conventional silver mirror reaction, the introduction of functional polymers can effectively improve the adhesion and distribution of Ag particles on the surface of 316LSS. It can be seen from the SEM images that a large number of silver particles are retained and well dispersed in 316LSS after sintering. PEI-co-GA/Ag 316LSS exhibits excellent antimicrobial properties and does not release free silver ions to affect the surrounding environment. Furthermore, the probable mechanism for the influence of the functional composites on the enhancement of adhesion is also proposed. The formation of a large number of hydrogen bonds and van der Waals forces, as well as the negative zeta potential of the 316LSS surface, can effectively enable the formation of a tight attraction between the Cu layer and the surface of 316LSS. These results meet our expectations of designing passive antimicrobial properties on the contact surface of medical devices.

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Section: Resultsmentioning

confidence: 99%

A Novel Method for the Fabrication of Antibacterial Stainless Steel with Uniform Silver Dispersions by Silver Nanoparticle/Polyethyleneimine Composites

et al. 2023

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“…They both enhance certain oral micro-organisms growth such as Candida albicans [ 6 , 7 ] . Furthermore, this encouragement for biofilm formation and adhesion to denture base could be one of the most reported factors for oral mucosa inflammation especially in poor oral hygiene or immune-deficiency patient and with high carbohydrates intake [ 8 ]. Thus improving self-cleaning or anti-microbial property of such dentures materials is of great importance.…”

Section: Introductionmentioning

confidence: 99%

“…Several previous studies tried to improve the antimicrobial efficiency of denture materials either by incorporation of active antimicrobial elements such as phosphate groups into PMMA composition and reaction [ 12 ], introducing protein repellent like 2-methacryloyloxyethyl or silver nanoparticles (NPs) [ 13 ] or by developing surface film coating with antimicrobial prevalence [ 8 ]. A recent review article has concluded that colloidal silver in lower ratio could provide good antimicrobial effect to quaternary ammonium compounds when they are incorporated into denture resin [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of polymethyl-methacrylate and acetal denture base resins processed by two different techniques before and after nano-chlorohexidine surface treatment

Fathy,

Abdel-Halim,

El-Safty

et al. 2023

BMC Oral Health

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Background Flexible denture base polymers have gained popularity in modern dentistry however, their biofilm formation tendency, adversely affecting the oral tissue heath, remains a concern. Consequently, this study aimed to evaluate surface roughness and biofilm formation tendency of two types of denture base resins manufactured with two techniques before and after surface coating with chlorohexidine (CHX) NPs. Materials and methods Acetal (AC) and Polymethyl-methacrylate (PMMA) resins manufactured by conventional and CAD/CAM methods were shaped into disk (10 X 10 X 1 mm). They were dipped for 8 h and 24 h in colloidal suspension prepared by mixing aqueous solution of CHX digluconate and hexa-metaphosphate (0.01 M). Surface roughness, optical density (OD) of microbial growth media and biofilm formation tendency were evaluated directly after coating. Elutes concentrations of released CHX were evaluated for 19 days using spectrophotometer. Three-way ANOVA and Tukey’s post-hoc statistical analysis were used to assess the outcomes. Results AC CAD/CAM groups showed statistically significant higher roughness before and after coating (54.703 ± 4.32 and 77.58 ± 6.07 nm, respectively). All groups showed significant reduction in OD and biofilm formation tendency after surface coating even after 19 days of CHX NPs release. Conclusions Biofilm formation tendency was highly relevant to surface roughness of tested resins before coating. After CHX NPs coating all tested groups showed significant impact on microbial growth and reduction in biofilm formation tendency with no relation to surface roughness. Significant antimicrobial effect remained even after 19 days of NPs release and specimens storage.

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“…Due to its special antimicrobial mechanism, there is no antimicrobial resistance against it. Our laboratory synthesized a novel antimicrobial composite, Ag–PEI–polylactic acid (PLA) utilizing its antimicrobial activity [7]. An additional role is that it can be applied as a carrier for osteoinductive growth factors (e.g., bone morphogenetic proteins) to alveolar bone.…”

Section: Introductionmentioning

confidence: 99%

“…Our latest publication requires the quantitative determination of PEI from the released materials [7]. In these samples, the PEI may be bounded and unbounded.…”

Section: Introductionmentioning

confidence: 99%

Study of the Intrinsic Fluorescence of a Highly Branched Cationic Dendrimer, Poly(Ethyleneimine) (PEI)

et al. 2019

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Poly(ethyleneimine) (PEI) is a weakly basic, synthetic, polycationic polymer, due to the presence of primary, secondary, and tertiary amino groups. The amino groups are responsible for the variety of applications of PEI (e.g., transfection, bioimaging, solar cell, etc.). Our study presents some new and reproducible methods for the quantification of molecular or mass concentration of highly branched PEI of different molecular weights (800–2000–25,000–750,000 MW PEI). In the course of the direct method, spectrophotometry and fluorometry were applied to determine the absorption and fluorescence of PEI dilution series. An increase in the MW at the same concentration produces a higher count number because of the higher number of amino groups in PEI molecules. The character of increment in fluorescence intensity is essentially different in the case of mass concentrations and molar concentrations. The increment of the fluorescence intensity related to the molar concentration is non-linear. In the case of mass concentration, the slope is linear. Moreover, their fluorescence is enhanced with the decrease in pH values. The spectrophotometry is a reliable method for measuring the quantity of PEI molecules in solution. Our data help in recognizing the detailed properties of PEI in dendrimer research.

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Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Cited by 12 publications

References 42 publications

A Novel Method for the Fabrication of Antibacterial Stainless Steel with Uniform Silver Dispersions by Silver Nanoparticle/Polyethyleneimine Composites

A Novel Method for the Fabrication of Antibacterial Stainless Steel with Uniform Silver Dispersions by Silver Nanoparticle/Polyethyleneimine Composites

Evaluation of polymethyl-methacrylate and acetal denture base resins processed by two different techniques before and after nano-chlorohexidine surface treatment

Study of the Intrinsic Fluorescence of a Highly Branched Cationic Dendrimer, Poly(Ethyleneimine) (PEI)

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