نتایج جستجو برای: sio2 nanoparticle

تعداد نتایج: 44420  

Journal: :ACS applied materials & interfaces 2013
Nicholas A Roberts Jason D Fowlkes Kyle Mahady Shahriar Afkhami Lou Kondic Philip D Rack

The directed assembly of arrayed nanoparticles is demonstrated by dictating the flow of a liquid phase filament on the nanosecond time scale. Results for the assembly of Ni nanoparticles on SiO2 are presented. Previously, we have implemented a sinusoidal perturbation on the edge of a solid phase Ni, thin film strip to tailor nanoparticle assembly. Here, a nonlinear square waveform is explored. ...

Journal: :Materials & Design 2021

This work reports the formation of circular cavities and Au-SiOx nanoflowers after annealing thin Au film deposited on SiO2/Si substrates, transformation to nanosprouts with increasing time. Two reference experiments indicate that both H2 Si are indispensable for above structures. The can be attributed SiO2 layer decomposition product, volatile SiO, provides a source at early stage. A model is ...

2011
D. J. Sprouster R. Giulian L. L. Araujo P. Kluth B. Johannessen N. Kirby M. C. Ridgway

Face-centered cubic Ni nanoparticles were formed in SiO2 by ion implantation and thermal annealing. Small-angle x-ray scattering in conjunction with transmission electron microscopy was used to determine the nanoparticle size as a function of annealing temperature, whereas the local atomic structure was measured with x-ray absorption spectroscopy. The influence of finite-size effects on the nan...

2016
Robert A. Yokel

BBB blood-brain barrier BMEC brain microvascular (capillary) endothelial cells CBSA cationic bovine serum albumin CdTe cadmium tellurium CTAB trimethylammonium bromide DRG dorsal root ganglia HSA human serum albumin ip intraperitoneal iv intravenous MWCNT multi-walled carbon nanotube PAMAM poly(amidoamine) PBCA polybutylcyanoacrylate PEG polyethylene glycol PLA poly(lactide) PLGA poly(lactic-co...

2013
Hong Yang Fenglong Zhao Ying Li Mingming Xu Li Li Chunhui Wu Hirokazu Miyoshi Yiyao Liu

Multifunctional nanomaterials with unique magnetic and luminescent properties have broad potential in biological applications. Because of the overexpression of vascular cell adhesion molecule-1 (VCAM-1) receptors in inflammatory endothelial cells as compared with normal endothelial cells, an anti-VCAM-1 monoclonal antibody can be used as a targeting ligand. Herein we describe the development of...

Journal: :Optics express 2012
Lee-Woon Jang Dae-Woo Jeon Trilochan Sahoo Dong-Seob Jo Jin-Woo Ju Seung-jae Lee Jong-Hyeob Baek Jin-Kyu Yang Jung-Hoon Song Alexander Y Polyakov In-Hwan Lee

Optical properties of InGaN/GaN multi-quantum-well (MQW) structures with a nanolayer of Ag/SiO2 nanoparticle (NP) on top were studied. Modeling and optical absorption (OA) measurements prove that the NPs form localized surface plasmons (LSP) structure with a broad OA band peaked near 440-460 nm and the fringe electric field extending down to about 10 nm into the GaN layer. The presence of this ...

1999
J. M. Fitz-Gerald M. Ollinger J. W. Marcinka

In this paper, we show the feasibility of the pulsed-laser ablation technique to grow 20–30-nm-thick, discrete and continuous coatings on particulate material systems so that the properties of the core particles can be suitably modified. Experiments were conducted with a pulsed excimer laser (l 4 248 nm, pulse duration 4 25 ns) to deposit nanoparticle coatings on Al2O3 and SiO2 core particles b...

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