نتایج جستجو برای: 4ʹ bipyridine silica hybrid nanocomposite

تعداد نتایج: 242350  

Journal: Nanomedicine Journal 2020

Several hybrid sensing materials, which are organized by interaction of organic molecules onto inorganic supports, have been developed as a novel and hopeful class of hybrid sensing probes. The hybrid silica-magnetic based sensors provide perfect properties for production of various devices in sensing technology. The hybridization of silica and magnetic NPs as biocompatible, biodegradable and s...

Journal: :Journal of colloid and interface science 2016
Renata L Sala Tatielih P Oliveira Xavier Tiago Venâncio Tatiane Moraes Arantes Caio M Paranhos Emerson R Camargo

Distinct affinities between the organic and inorganic phases were observed in nanocomposites prepared through a colloidal route with carboxylated nitrile rubber and modified silica nanoparticles, which resulted in variable mechanical properties and improved thermal stability. Nanoparticles with modified surface affected the macromolecular arrangements of the elastomeric matrix, changing the fin...

The aim of this work was synthesis of MCM-41/HA nanocomposite and biodegradation behavior of pure silica-mesoporous in attendance of hydroxyapatite crystals. These materials were synthsized by sol-gel method and ageing at 100°C for 24hr. A surfactant was used as template. The pores were formed after removal of surfactant by calcination at 550°C. FTIR results demonstrated formation of silanol a...

میلانی مقدم, حسین, نصیریان, شهروز,

  In this letter, titania nanopowder and titania-silica nanocomposite were prepared using sol-gel method. Although the size of nanocrystallites and the mass fraction percent age of rutile phase ( after phase transformation ) were increased by increasing calcination in the two samples , their size in titania-silica nanocomposite was smaller than that in pure titania . Moreover, the calculations ...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2006
Min-Huey Chen Ci-Rong Chen Seng-Haw Hsu Shih-Po Sun Wei-Fang Su

OBJECTIVES The aim of this study was to develop a low shrinkage visible light curable nanocomposite dental restorative material without sacrificing the other properties of conventional materials. This nanocomposite was developed by using an epoxy resin 3,4-epoxycyclohexylmethyl-(3,4-epoxy)cyclohexane carboxylate (ERL4221) matrix with 55% wt of 70-100 nm nanosilica fillers through ring-opening p...

Journal: :journal of membrane science and research 0
d.e. koutsonikolas chemical process & energy resources institute, centre for research and technology hellas, thessaloniki, greece s.p. kaldis chemical process & energy resources institute, centre for research and technology hellas, thessaloniki, greece ch. matsouka laboratory of materials technology, chemical engineering department, aristotle university of thessaloniki, thessaloniki, greece v.t. zaspalis laboratory of materials technology, chemical engineering department, aristotle university of thessaloniki, thessaloniki, greece

the gas separation performance of commercial ceramic titania and hybrid silica (hybsi®) membranes was assessed using the gas permeation and permporometry methods. results indicated that the hybsi® membranes have a hybrid surface containing regions covered by a polymeric matrix and others with inorganic pores. these membranes have high h2 selectivity, which increases significantly with temperatu...

2016
Hao Zhang Qun Li Jinyu Huang Yu Du Shuangchen Ruan

A reduced grapheme oxide (rGO)/Au hybrid nanocomposite has been synthesized by hydrothermal treatment using graphite and HAuCl₄ as the precursors. Characterization, including X-ray diffraction (XRD), Raman spectra, X-ray photoelecton spectroscopy (XPS) and transmission electron microscopy (TEM), indicates the formation of rGO/Au. A gas sensor fabricated with rGO/Au nanocomposite was applied for...

Journal: :Soft matter 2016
Juan Du Shimei Xu Shun Feng Lina Yu Jide Wang Yumei Liu

A dual nanocomposite hydrogel with inorganic hybrid crosslinking was fabricated through a simultaneous sol-gel technique and free radical polymerization. Due to the multi-strengthening mechanism of the dual nanocomposite, the hydrogel was super tough and strong with a compressive stress of 32.00 MPa without rupture even at 100% strain, while it exhibited excellent fatigue resistant properties.

Journal: :Journal of chromatography. A 2010
Minghuo Wu Yingzhuang Chen Ren'an Wu Ruibing Li Hanfa Zou Bo Chen Shouzhuo Yao

A chloropropyl-functionalized silica (CP-silica) hybrid monolithic column was synthesized within the confines of a capillary via the sol-gel process using tetramethoxysilane (TMOS) and (3-chloropropyl)-trimethoxysilane (CPTMS) as the precursors. The resulting CP-silica hybrid monolith inside the capillary showed homogeneous macroporous morphology and was well attached to the inner wall of the c...

2013
Mostafa Yazdimamaghani Tannaz Pourvala Elaheh Motamedi Babak Fathi Daryoosh Vashaee Lobat Tayebi

Nanocomposites of encapsulated silica nanoparticles were prepared by in situ emulsion polymerization of acrylate monomers. The synthesized material showed good uniformity and dispersion of the inorganic components in the base polymer, which enhances the properties of the nanocomposite material. A nonionic surfactant with lower critical solution temperature (LCST) was used to encapsulate the sil...

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