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24 results for “monomer”
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Research ArticleOpen accessEvery word in the titleBiocompatibility of Orthodontic Resins: In vitro Evaluation of Monomer Leaching and Cytotoxic EffectsRoberto Uomo, Gianrico Spagnuolo, Giuseppina Nocca et al.The aim of this study was to investigate the effect of orthodontic resins on cell survival and to evaluate monomer leaching both before and after resin polymerization. Materials and methods: 3T3 mouse fibroblasts were exposed to three cured and uncured orthodontic resins. Cellular viability was assessed by Alamar Blue assay after 24, 48 and 72 h. High Performance Liquid Chromatography … …Current Research in Dentistry, Vol. 8, Issue 1 · 7 Jul 2017 · 16,333 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMonomers Release from Dental Composites: Effect of Immersion Media and Photoactivation Light SourceRaquel A.B. da Silva, Talita P. Prates, Driely Barreiros et al.The present study aimed to evaluate qualitatively and quantitatively the products released by composites with different light sources when immersed in distilled water or artificial saliva. Thirty-six samples were obtained from the composites using a silicone matrix. Specimens were divided into 12 groups according to: Composite (Charisma®, FiltekTMSilorane or GC Kalore®), device used for the materials photoactivation (halogen light or … …Current Research in Dentistry, Vol. 5, Issue 1 · 14 Jan 2015 · 7,188 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effects of Crosslinker and Monomer to the Polymerization of Polymethacrylamide Gel Dosimeters by Direct and Indirect MethodsElias Saion, A. H. Shaari, M. Z.A. Rahman et al.Radiation-induced polymerization in Polymethacrylamide Gels (PMAAGs) potentially used for 3D dose verification in radiotherapy has been studied using both Raman spectroscopy and Nuclear Magnetic Resonance (NMR) method. The dosimeters are composed of aqueous Methacrylamide (MAA) monomer and N, N’ methyelene-bis-acrylamide (BIS) crosslinker at various concentrations from 2 to 6% (w/w) and gelatin at 6% (w/w). The dosimeters were irradiated to … …American Journal of Applied Sciences, Vol. 2, Issue 8 · 31 Aug 2005 · 7,168 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBonding of Resin Materials to All-Ceramics: A ReviewLiang Chen, Byoung In SuhProblem statement: All-ceramic materials, especially silica-based lithium disilicate and non-silicate-based Zirconia, have become a topic of interest in the field of dentistry. It is still difficult to achieve a strong and durable resin-ceramic adhesion, especially resin-Zirconia bonding. Approach: The article reviews the current literature published in the past 5 years, focusing on the latest resin bonding techniques (including surface treatment, … …Current Research in Dentistry, Vol. 3, Issue 1 · 21 May 2012 · 15,814 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Oak Chip Treatments on Quality of Dry White Wines During AgingRongbin Li, Xiaofang Liang, Chunhua Song et al.The objective of the research was to evaluate the effect of different oak chip treatments on quality of Longyan dry white wine during aging. Phenolic substances, antioxidant activity and Cu2+ reduction force were measured. The results showed that wines treated with French oak chips (6 g/L) had significantly higher contents of total phenols (0.083 mg/mL) and flavonoids (0.063 mg/mL), also … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 26 Feb 2020 · 7,235 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation of Fluorine/Silicon Co-Modified Elastic Acrylate with Low Fluorine and High PerformanceYuan Zhihua, Xia Chunlei, Geng Ziye et al.The methyl acrylate was modified with hexafluorobutyl methacrylate (G02) and vinyl triethoxy silane (A-151) as modified monomers, Methyl Methacrylate (MMA) as hard monomer and Butyl Acrylate (BA) as soft monomer. Pre-emulsification, seed emulsion and semi-continuous synthesis process were adopted to the effects of the preparation process, the ratio of G02 and A-151 modified monomers, the amount of soft monomer and … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 4 Jan 2020 · 7,651 accessesView PDFCite
Research ArticleOpen accessIn the abstractFormation Mechanism and Characterization of PANI Nanoparticles by Hybrid Chemical and Gamma Irradiation TechniqueShawkat Salameh GasaymehHere we present additional data regarding specific doping process in nanoparticle samples of PANI. In such technique, the ionizing γ-irradiation and (dodecylbenzenesulfonic acid), DBSA were being used as dopants and as accelerators to the oxidizing agent to polymerize aniline monomer into conductive PANI Emeraldine Salt (ES), in which PANI was produced from its monomer by this noble methodology by a … …American Journal of Applied Sciences, Vol. 15, Issue 12 · 13 Feb 2019 · 8,381 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Curing Temperature and MMA Content on the Working Life of MMA-Modified Vinyl Ester Polymer ConcreteKi-Bong Choi, Seung-Ho Min, Kyu-Seok YeonThe main purpose of this study is to identify the effects of curing temperature and methyl methacrylate (MMA) content on the working life of vinyl ester polymer concreteusing MMA as a monomer, N,N-dimethyl-p-toluidine (DMP) and methyl ethyl ketone peroxide (MEKPO) as initiators and cobalt naphthenate as a promoter. The results have shown that the working life of vinyl ester polymer … …American Journal of Applied Sciences, Vol. 14, Issue 1 · 23 Jan 2017 · 7,962 accessesView PDFCite
Research ArticleOpen accessIn the abstractSetting Shrinkage Characteristics of Methyl Methacrylate-Modified Vinyl Ester Polymer ConcreteKi-Bong Choi, Seung-Ho Min, Kyu-Seok YeonThis study evaluated the setting shrinkage characteristics of Methyl Methacrylate (MMA)-modified vinyl ester polymer concrete with different curing ages, MMA contents and curing temperatures. Results have shown that most of the setting shrinkage developed within 24 h after curing initiation. It was also found that an increase in MMA content led to an almost linear decrease in setting shrinkage, indicating … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 17 May 2016 · 8,300 accessesView PDFCite
Research ArticleOpen accessIn the abstractSynthesis and Characterization of Organotin(IV) Complexes Derived of 3-(Dimethylamino)benzoic Acid: Cytotoxic Assay on Human Liver Carcinoma Cells (HepG2)Yip-Foo Win, Siang-Guan Teoh, Tengku-Sifzizul Tengku-Muhammad et al.Problem statement: Many studies have been carried out on organotin(IV) complexes derivative of carboxylate anions. However, the synthesis and characterization as well as the cytotoxic assay of organotin(IV) carboxylate derived of 3-(dimethylamino)benzoic acid have not been studied. Approach: Organotin(IV) carboxylate complexes derivative of 3-(dimethylamino)benzoic acid, 3-[N(CH3)2]C6H4COOH have been successfully synthesized. Two types of diorganotin(IV) complexes, [{3-[N(CH3)2]C6H4COO(R)2Sn}2O]2 dimer (R = methyl … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 8,310 accessesView PDFCite