Antimicrobial activity and surface properties of an acrylic resin containing a biocide polymer

Gerodontology ◽  
2012 ◽  
Vol 31 (3) ◽  
pp. 220-226 ◽  
Author(s):  
Marco A. Compagnoni ◽  
Ana C. Pero ◽  
Stella M. M. Ramos ◽  
Juliê Marra ◽  
André G. Paleari ◽  
...  
Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3193
Author(s):  
Sylva Holešová ◽  
Karla Čech Čech Barabaszová ◽  
Marianna Hundáková ◽  
Michaela Ščuková ◽  
Kamila Hrabovská ◽  
...  

Infection with pathogenic microorganisms is of great concern in many areas, especially in healthcare, but also in food packaging and storage, or in water purification systems. Antimicrobial polymer nanocomposites have gained great popularity in these areas. Therefore, this study focused on new approaches to develop thin antimicrobial films based on biodegradable polycaprolactone (PCL) with clay mineral natural vermiculite as a carrier for antimicrobial compounds, where the active organic antimicrobial component is antifungal ciclopirox olamine (CPX). For possible synergistic effects, a sample in combination with the inorganic antimicrobial active ingredient zinc oxide was also prepared. The structures of all the prepared samples were studied by X-ray diffraction, FTIR analysis and, predominantly, by SEM. The very different structure properties of the prepared nanofillers had a fundamental influence on the final structural arrangement of thin PCL nanocomposite films as well as on their mechanical, thermal, and surface properties. As sample PCL/ZnOVER_CPX possessed the best results for antimicrobial activity against examined microbial strains, the synergic effect of CPX and ZnO combination on antimicrobial activity was proved, but on the other hand, its mechanical resistance was the lowest.


2013 ◽  
Vol 42 (4) ◽  
pp. 237-242 ◽  
Author(s):  
Ana Carolina Pero ◽  
Jaqueline Ignárcio ◽  
Gabriela Giro ◽  
Danny Omar Mendoza-Marin ◽  
André Gustavo Paleari ◽  
...  

INTRODUCTION: The occurrence of stomatitis is common since the surface characteristics of the dentures may act as reservoirs for microorganisms and have the potential to support biofilm formation. PURPOSE: To assess the surface properties (wettability/roughness) and color stability of an acrylic resin combined with the antimicrobial polymer poly (2-tert-butylaminoethyl) methacrylate (PTBAEMA). MATERIAL AND METHOD: Thirty disc-shaped specimens of an acrylic resin (Lucitone 550) were divided into three groups: 0% (control); 5% and 10% PTBAEMA. Surface roughness values (Ra) were measured using a profilometer and wettability was determined through contact angle measurements using a goniometer and deionized water as a test liquid. Color data were measured with a spectrophotometer. Kruskal-Wallis and Dunn's test were used to compare roughness values. Wettability data were analyzed using ANOVA and Tukey's test. Color data were compared using the Student's t-test and ∆E values were classified according to the National Bureau of Standards (NBS). All statistical analyses were performed considering α=.05. RESULT: Significant differences (p<.05) were detected among the groups for roughness, wettability and color stability. According to the NBS, the color changes obtained in the 5% and 10% PTBAEMA groups were "appreciable" and "much appreciable", respectively. CONCLUSION: It could be concluded that PTBAEMA incorporation in an acrylic resin increased the roughness and wettability of surfaces and produced color changes with clinical relevance.


Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1292
Author(s):  
Song-Yi Yang ◽  
Min-Kyung Kang

We conducted surface characterization to assess the biocompatibility and investigate the antimicrobial activity against oral pathogens in autopolymerizing acrylic resins, coated with light-curable coating resin, containing various concentrations of Reynoutria elliptica extract (0, 200, 400, and 600 µg/mL). The R. elliptica extract powder was prepared using a freeze-drying technique. Further, a goniometer and microhardness tester were used to determine the water contact angle, and Vickers hardness, respectively; color measurements were performed on the uncoated and coated acrylic resin disks. The polyphenol content of the extracts from the coated acrylic resin disk was analyzed using UV-VIS spectroscopy. The antimicrobial activity of the coated acrylic resin disk against Streptococcus mutans and Candida albicans was observed for 24 and 48 h by measuring the optical density using spectrophotometry. In addition, biocompatibility was confirmed by testing the cell viability according to ISO 10993-5. The water contact angle, Vickers hardness, and color change values of the coated acrylic resin disks were not significantly different from the control. Polyphenol was detected in all experimental groups, with no significant differences between the experimental groups. The experimental groups exhibited significant antimicrobial activity against S. mutans and C. albicans compared to the control group, after 48 h of incubation. The cell viability between the control and experimental groups was not significantly different. The proposed coating resin containing R. elliptica extract is applicable on dental acrylic resins, due to their antimicrobial properties and excellent biocompatibility, with no deterioration of surface characteristics.


2017 ◽  
Vol 219 (5) ◽  
pp. 1700497 ◽  
Author(s):  
Zhuoling Deng ◽  
Alexander Hoefling ◽  
Patrick Théato ◽  
Karen Lienkamp

2015 ◽  
Vol 23 (4) ◽  
pp. 376-382 ◽  
Author(s):  
Karin Hermana NEPPELENBROEK ◽  
Eduardo KUROISHI ◽  
Juliana HOTTA ◽  
Vinicius Rizzo MARQUES ◽  
Eduardo Buozi MOFFA ◽  
...  

2020 ◽  
Vol 3 (2) ◽  
pp. 129-137
Author(s):  
Mostafa Fayad ◽  
Gamal Alwafy ◽  
Ramy Abdelrahim ◽  
Osama Abuhelal

2011 ◽  
Vol 15 (3) ◽  
pp. 359-366 ◽  
Author(s):  
Ismail Aiad ◽  
Mohamed M. El-Sukkary ◽  
Ali El-Deeb ◽  
Moshira Y. El-Awady ◽  
Samy M. Shaban

2018 ◽  
Vol 22 (2) ◽  
pp. 315-325 ◽  
Author(s):  
Xianyou He ◽  
Liyan Wang ◽  
Jianglei Wu ◽  
Jia Yang ◽  
Wenhui Ma ◽  
...  

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