Results 21 to 30 of about 60,710 (268)

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

The Influence of Plasmonic Au Nanoparticle Integration on the Optical Bandgap of Anatase TiO2 Nanoparticles

open access: yesInternational Journal of Technology, 2019
This work reports an investigation into the influence of the surface plasmon resonance (SPR) phenomenon of plasmonic Au nanoparticles on the optical bandgap of anatase titanium dioxide (TiO2) nanoparticles.
Munawar Khalil   +3 more
doaj   +1 more source

Spectroscopic Analysis of Au-Cu Alloy Nanoparticles of Various Compositions Synthesized by a Chemical Reduction Method

open access: yesAdvances in Materials Science and Engineering, 2015
Au-Cu alloy nanoparticles were synthesized by a chemical reduction method. Five samples having different compositions of Au and Cu (Au-Cu 3 : 1, Au-Cu 2 : 1, Au-Cu 1 : 1, Au-Cu 1 : 2, and Au-Cu 1 : 3) were prepared.
Latif-ur-Rahman   +9 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

Retracted-Enhanced X-Ray Absorption Property of Gold-Doped Single Wall Carbon Nanotube

open access: yesIndonesian Journal of Chemistry, 2015
Enhanced X-ray absorption property of single wall carbon nanotube (SWCNT) through gold (Au) doping (Au@SWCNT) has been studied. Mass attenuation coefficient of SWCNT increased 5.2-fold after Au doping treatment.
Alimin Alimin   +3 more
doaj   +1 more source

Controlling Au Photodeposition on Large ZnO Nanoparticles [PDF]

open access: yesACS Applied Materials & Interfaces, 2016
This study investigated how to control the rate of photoreduction of metastable AuCl2(-) at the solid-solution interface of large ZnO nanoparticles (NPs) (50-100 nm size). Band-gap photoexcitation of electronic charge in ZnO by 370 nm UV light yielded Au NP deposition and the formation of ZnO-Au NP hybrids. Au NP growth was observed to be nonepitaxial,
Fernando, Joseph   +5 more
openaire   +5 more sources

Design of sensitive electrochemical sensor as the analytical tool for methyldopa in drug and biological samples [PDF]

open access: yesشیمی کاربردی روز, 2019
In this work, an electrochemical sensor based on carbon paste electrode modified with Au nanoparticle and 1-methyl-3-octylimidazolium chloride was fabricated as a sensor for determination of methyldopa.
Maryam Abbasghorbani
doaj   +1 more source

Comparative Study of Four Coloured Nanoparticle Labels in Lateral Flow Immunoassay

open access: yesNanomaterials, 2021
The detection limit of lateral flow immunoassay (LFIA) is largely determined by the properties of the label used. We compared four nanoparticle labels differing in their chemical composition and colour: (1) gold nanoparticles (Au NPs), red; (2) Au-core ...
Shyatesa C. Razo   +6 more
doaj   +1 more source

Preparation and Characterization of Au Nanoparticles for Teranostic Applications [PDF]

open access: yesProceedings of International Electronic Conference on Sensors and Applications, 2014
Gold nanoparticles (GNPs) are very attractive materials due to their unique properties of small size, large surface area to volume ratio, high reactivity to the living cells, stability over high temperatures. These properties along with the evidence that GNPs are amenable to the attachment of biomolecules or ligands through well-known thiol and amino ...
I. Delfino   +3 more
openaire   +4 more sources

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