نتایج جستجو برای: trimetoxyvinyl silane tmvs

تعداد نتایج: 2711  

2010
Craig M. Clemons Ronald C. Sabo Kolby C. Hirth

Though silane chemistry has been used to crosslink unfilled polyethylene for many years, such crosslinking has only been recently applied to wood plastic composites to improve properties such as creep resistance. However, the presence of wood significantly changes the silane chemistry and a greater understanding is necessary for optimal processing and performance. We investigated three differen...

معزی‌زاده, مریم, نوجه‌دهیان, هانیه, ولی‌زاده حقی, هاله,

Objective: A clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. This study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. Methods: This laboratory experimental study was conducted on zirconia discs. A total of 120 YTZP zirconia (Zirkonzahn) ...

Journal: :Chemical communications 2006
Robert G Howe Cara S Tredget Sally C Lawrence Suparabhorn Subongkoj Andrew R Cowley Philip Mountford

Reaction of the dimeric zirconium imido compound [Zr2(mu-NAr)2Cl4(THF)4] with tris(3,5-dimethylpyrazolyl)methyl silane very selectively gave [Zr{(Me2pz)2Si(Me)NAr}Cl3] (1), a highly active pre-catalyst for ethylene polymerisation; a more general and versatile route to N3 donor heteroscorpionate compounds was achieved via the protio ligand (Me2pz)2CHSi(Me)2N(H)iPr for which neutral and cationic ...

2012
Lyubomir G. Nashev Anna Vuorinen Lukas Praxmarer Boonrat Chantong Diego Cereghetti Rahel Winiger Daniela Schuster Alex Odermatt

BACKGROUND Impaired corticosteroid action caused by genetic and environmental influence, including exposure to hazardous xenobiotics, contributes to the development and progression of metabolic diseases, cardiovascular complications and immune disorders. Novel strategies are thus needed for identifying xenobiotics that interfere with corticosteroid homeostasis. 11β-hydroxysteroid dehydrogenase ...

Journal: :The journal of contemporary dental practice 2007
Jukka P Matinlinna Pekka K Vallittu

INTRODUCTION The longevity of silane promoted adhesion of surface conditioned metallic materials is of concern in dentistry and poses both a functional and esthetic dilemma for the patient and dental professionals. Several methods for surface conditioning exist, but some are employed more frequently in clinical practice. AIM OF THE REVIEW This overview aims to characterize and discuss the mos...

2017
Antoine R M Dalod Lars Henriksen Tor Grande Mari-Ann Einarsrud

A simple, robust and versatile hydrothermal synthesis route to in situ functionalized TiO2 nanoparticles was developed using titanium(IV) isopropoxide as Ti-precursor and selected silane coupling agents (3-aminopropyltriethoxysilane (APTES), 3-(2-aminoethylamino)propyldimethoxymethylsilane (AEAPS), and n-decyltriethoxysilane (DTES)). Spherical nanoparticles (ca. 9 nm) with narrow size distribut...

1998
U. Kroll J. Meier P. Torres J. Pohl A. Shah

The amorphous and microcrystalline silicon films have been prepared by hydrogen dilution from pure silane to silane concentrations G1.25%. At silane concentrations of less than 10%, a transition from the amorphous phase to the microcrystalline phase can be observed. X-ray diffraction spectroscopy indicates a preferential growth of the crystallites in w x the 220 direction. Additionally, the tra...

2014
Jiho Lee Jeong Ho Chang

This work reports the high-efficient and one-step immobilization of multimeric protein G on magnetic nanoparticles. The histidine-tagged (His-tag) recombinant multimeric protein G was overexpressed in Escherichia coli BL21 by the repeated linking of protein G monomers with a flexible linker. High-efficient immobilization on magnetic nanoparticles was demonstrated by two different preparation me...

Journal: :Brazilian dental journal 2012
Ana Rosa Costa Américo Bortolazzo Correr Regina Maria Puppin-Rontani Silvia Amélia Vedovello Heloísa Cristina Valdrighi Lourenço Correr-Sobrinho Mário Vedovello Filho

The purpose of this study was to evaluate the bond strength of metallic orthodontic brackets to feldspathic ceramic with different etching times, bonding materials and with or without silane application. Cylinders of feldspathic ceramic were etched with 10% hydrofluoric acid for 20 or 60 s. For each etching time, half of the cylinders received two layers of silane. Metallic brackets were bonded...

Journal: :journal of dentistry, tehran university of medical sciences 0
e.yassini k.tabari

statement of problem: ceramics as in ceramo-metallic and all ceramic tooth restorations have grown popular owing to their high tissue compatibility and esthetic advantages. such restorations have the capability to deliver valuable services over a long period of time; however, failures under intraoral conditions are not unanticipated. purpose: the purpose of this in-vitro study was to investigat...

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