نتایج جستجو برای: sio2 nanoparticle

تعداد نتایج: 44420  

2016
Masahito Toyonaga Patchanee Chammingkwan Minoru Terano Toshiaki Taniike

Grafting terminally functionalized polypropylene (PP) to nanofillers provides well-defined PP-based nanocomposites plausibly featured with a physical cross-linkage structure. In this paper, a series of PP-grafted silica nanoparticles (PP-g-SiO2) were synthesized by varying the number of grafted chains per silica particle, and influences of the number and the molecular weight of grafted chains w...

Journal: :journal of nanostructures 2012
a. salabat a. barati n. banijamali

the silica supported platinum nanoparticles was synthesized by using the sol-gel method. the possibility of using diamminedinitro platinum (ii) as pt precursor and effect of metal precursor concentration on the final pt nanoparticle size was investigated. a stable silica sol was prepared via hydrolysis of tetraethyl orthosilicate (teos) as a metal alcoxide and condensation reaction. subsequentl...

Journal: :Journal of Engineering and Applied Sciences 2019

Journal: :Particle & Particle Systems Characterization 2023

In article 2200173 by Cavus Falamaki and co-workers, an in-house nanoparticle-tracking analysis (NTA) system for the determination of particle size distribution (PSD) polydisperse suspensions transparent nanoparticles is developed. This new analytical able to measure SiO2 in water medium a down 5 nm.

2013
Ndeye Rokhaya Faye

In this study we investigate silica nanoparticle (SiO2NP) effects on the structure and phase properties of supported lipid monolayers and bilayers, coupling surface pressure measurements, fluorescence microscopy and atomic force microscopy. SiO2-NPs typically in size range of 10nm to 100 nm in diameter are tested. Our results suggest first that lipid molecules organization depends to their natu...

2008
Amitabh Ghoshal Pieter G. Kik

We discuss a plasmonic coupling device consisting of a periodic array of ellipsoidal silver nanoparticles embedded in SiO2 and placed near a silver surface. By tuning the shape of the particles in the array, the nanoparticle plasmon resonance is tuned. The resulting resonantly enhanced fields near the nanoparticles, in turn, excite surface plasmons on the metal film. We have performed finite in...

2015
Pin-Wei Hsieh Ching-Li Tseng Dong-Hau Kuo

Functionalized Fe nanoparticles (NPs) have played an important role in biomedical applications. In this study, metallic Fe NPs were deposited on SiO2 spheres to form a Fe/SiO2 composite. To protect the Fe from oxidation, a thin SiO2 layer was coated on the Fe/SiO2 spheres thereafter. The size and morphology of the SiO2@Fe/SiO2 composite spheres were examined by transmission electron microscopy ...

Journal: :Global Journal of Engineering and Technology Advances 2023

We examined the capacity of SiO2@Cu core-shell nanoparticles to inhibit Escherichia coli and Streptococcus mutaus. Before after addition silicate, copper showed a surface plasmon resonance (SPR) with peak in 620–630 nanometers' region. SiO2@cu nanoparticle manufacturing was further demonstrated have spherical shape, as TEM. The crystal structure SO2 @cu we found matches X-ray diffraction patter...

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