نتایج جستجو برای: Metallic Nano-Shells

تعداد نتایج: 102883  

Journal: :iranian journal of medical physics 0
mohammad etrati khosroshahi laser and nano-biophotonics lab., biomaterial group, faculty of biomedical engineering, amirkabir university of technology, tehran, iran. laser, optics and photonics research center, tehran, iran.

introduction in this study, we describe the results of controlled synthesis and application of gold coated fe3o4/sio2 nano-shells combined with the optical property of gold for enhancement of selective photothermal interaction with cancerous cells based on the surface plasmon resonance (spr) phenomena. materials and methods magnetite nano-particles (mnps) were prepared by means of co-precipitat...

Journal: :Chemical communications 2010
Jungok Kim Nosang V Myung Hor-Gil Hur

Here we report a peptide directed synthesis of co-shell nanocables by sequential guide formation of silica insulating shells on metallic gold nanoribbons which is significant since it demonstrated the ability to fabricate a functional nano-electronic component using a biomimetic method.

2014
Kaushal Choonee Richard R. A. Syms

A cylindrical metallic plasmonic nano-antenna consisting of a shell supporting a disk, named capped shell, is proposed and studied by frequency domain finite element analysis. This new topology is shown to be weakly dependent on the radius of the structure and is therefore suitable for fabrication by parallel processes such as island lithography which generates a pseudo-random array with a dist...

Journal: :Dalton transactions 2015
Aiguo Kong Chengyu Mao Qipu Lin Xiao Wei Xianhui Bu Pingyun Feng

By one-step pyrolysis of a unique "cage-in-cage" cobalt metal-organic framework, nitrogen-doped carbon cubes embedded with numerous metallic Co nanoparticles were obtained. A considerable amount of Co particles was encapsulated in thin carbon shells and formed the core-shell-like Co@C structure. With about 60 wt% Co particles in the prepared sample, the nanocomposites of Co nanoparticles and ni...

Journal: :Physical review letters 2009
Sébastien Nanot Rémi Avriller Walter Escoffier Jean-Marc Broto Stephan Roche Bertrand Raquet

We present strong evidence of Landau states formation in multiwalled carbon nanotubes with metallic or semiconducting outer shells, under magnetic fields as high as 60 T. Magnetoconductance data are found to converge to a gate-independent value for semiconducting shells, whereas for metallic shells, the Landau states introduce a strong reintroduction of backscattering and Fermi level pinning cl...

2013
Yongan Tang Branislav Vlahovic

We study metallic nano-particles for light trapping by investigating the optical absorption efficiency of the hydrogenated amorphous silicon thin film with and without metallic nano-particles on its top. The size and shape of these nano-particles are investigated as to their roles of light trapping: scattering light to the absorption medium and converting light to surface plasmons. The optical ...

2015
Stefania D'Agostino Fabio Della Sala Lucio Claudio Andreani

We report a discrete dipole approximation approach to analyse the perturbations induced by silver nano-particles on the decay dynamics of a point-like emitter placed in their proximity. Due to the excitation of localized surface plasmons, metallic nano-particles behave like optical antennas and are able to convert localized fields into freepropagating optical radiation, and vice versa. Field lo...

2014
Manjusha Hariharan Benny Cherian

Calcium carbonate nano particles were synthesized using precipitation method from cockle shells by employing chitosan as precursor. Synthesized Calcium carbonates were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Visible and FTIR Spectroscopy. The results were compared with commercial calcium carbonate nano particles. Cockle shells are the potential source...

Journal: :Science 2001
P G Collins M S Arnold P Avouris

Carbon nanotubes display either metallic or semiconducting properties. Both large, multiwalled nanotubes (MWNTs), with many concentric carbon shells, and bundles or "ropes" of aligned single-walled nanotubes (SWNTs), are complex composite conductors that incorporate many weakly coupled nanotubes that each have a different electronic structure. Here we demonstrate a simple and reliable method fo...

2010
Asaf Shahmoon Ofer Limon Olga Girshevitz Zeev Zalevsky

In this paper, we present the self assembly procedure as well as experimental results of a novel method for constructing well defined arrangements of self assembly metallic nano particles into sophisticated nano structures. The self assembly concept is based on focused ion beam (FIB) technology, where metallic nano particles are self assembled due to implantation of positive gallium ions into t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید