Results 21 to 30 of about 3,380,404 (320)

Shell Thickness-Dependent Strain Distributions of Confined Au/Ag and Ag/Au Core-Shell Nanoparticles

open access: yesAdvances in Condensed Matter Physics, 2015
The shell thickness-dependent strain distributions of the Au/Ag and Ag/Au core-shell nanoparticles embedded in Al2O3 matrix have been investigated by finite element method (FEM) calculations, respectively.
Feng Liu   +5 more
doaj   +1 more source

Magnetic Au Nanoparticles on Archaeal S-Layer Ghosts as Templates

open access: yesNanomaterials and Nanotechnology, 2011
Cell‐ghosts representing empty cells of the archaeon Sulfolobus acidocaldarius, consisting only of their highly ordered and unusually stable outermost proteinaceous surface layer (S‐layer), were used as templates for Au nanoparticles ...
Sonja Selenska-Pobell   +10 more
doaj   +1 more source

Exchange Bias Effect in Au-Fe3O4 Nanocomposites [PDF]

open access: yes, 2013
We report exchange bias (EB) effect in the Au-Fe3O4 composite nanoparticle system, where one or more Fe3O4 nanoparticles are attached to an Au seed particle forming dimer and cluster morphologies, with the clusters showing much stronger EB in comparison ...
Chandra, Sayan   +9 more
core   +1 more source

A flexible one-pot route to metal/metal oxide nanocomposites [PDF]

open access: yes, 2010
We report a one-pot route to Au/CeO2 nanocomposites. A readily-available biopolymer, sodium alginate, is exploited for controlled formation and stabilisation of gold nanoparticles followed by in situ growth of a sponge-like network of CeO2 nanoparticles.
Hall, SR   +3 more
core   +3 more sources

Synthesis and application of Fe3O4@Au composite nanoparticles as magnetic resonance/computed tomography dual-modality contrast agent

open access: yesJournal of Medical Signals and Sensors, 2020
Background: None of the molecular imaging modalities can produce imaging with both anatomical and functional information. In recent years, to overcome these limitations multimodality molecular imaging or combination of two imaging modalities can provide ...
Mohammad Keshtkar   +2 more
doaj   +1 more source

A novel colorimetric biosensor based on non-aggregated Au@Ag core–shell nanoparticles for methamphetamine and cocaine detection [PDF]

open access: yes, 2017
We report a novel colorimetric biosensor based on non-aggregation Au@Ag core-shell nanoparticles to detect methamphetamine and cocaine. The biosensor consisted of a reporter probe (RP) that is a specific single-stranded DNA (ssDNA) sequence coated on Au ...
Hu, Jiming   +5 more
core   +1 more source

Phase stability, ordering tendencies, and magnetism in single-phase fcc Au-Fe nanoalloys [PDF]

open access: yes, 2017
Bulk Au-Fe alloys separate into Au-based fcc and Fe-based bcc phases, but L1$_0$ and L1$_2$ orderings were reported in single-phase Au-Fe nanoparticles.
An, J. M.   +3 more
core   +3 more sources

A track record of Au–Ag nanomelt generation during fluid-mineral interactions

open access: yesScientific Reports, 2023
Recent studies have reported the significant role of Au-bearing nanoparticles in the formation of hydrothermal gold deposits. Despite the ever-increasing understanding of the genesis and stability of Au-bearing nanoparticles, it is still unknown how they
Diego Domínguez-Carretero   +5 more
doaj   +1 more source

Bimetallic nanoparticle generation from Au − TiO2 film by pulsed laser ablation in an aqueous medium

open access: yesAlexandria Engineering Journal, 2021
Bimetallic nanoparticle formation by applying pulsed laser ablation on the gold (Au) - titanium (TiO2) film was demonstrated. Experiments were conducted at room temperature.
Wahyudiono   +6 more
doaj   +1 more source

Use of laser-triggered gold nanoparticle-grafted dual light and temperature-responsive polymeric sensor for the recognition of thioguanine as anti-tumor agent [PDF]

open access: yesNanomedicine Journal, 2020
Objective(s): Today, there is an urgent need for improved sensor materials for drug sensing and effective monitoring and interventions in this area are highly required to struggle drug abuse. The present study aimed to synthesize a thioguanine-responsive
Kamyar Pourghazi   +2 more
doaj   +1 more source

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