Results 41 to 50 of about 49,578 (288)

Aptamer-based cocaine assay using a nanohybrid composed of ZnS/Ag2Se quantum dots, graphene oxide and gold nanoparticles as a fluorescent probe [PDF]

open access: yes, 2020
Authors report on a new fluoro-graphene-plasmonic nanohybrid aptamer-based fluorescent nanoprobe for cocaine. To construct the nanoprobe, newly synthesized glutathione-capped ZnS/Ag 2Se quantum dots (QDs) were first conjugated to graphene oxide (GO) to ...
Abdolvand, Amin   +4 more
core   +2 more sources

Uptake and cytotoxicity of citrate-coated gold nanospheres : comparative studies on human endothelial and epithelial cells [PDF]

open access: yes, 2012
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally
Couraud, Pierre-Olivier   +7 more
core   +7 more sources

Landing and catalytic characterization of individual nanoparticles on electrode surfaces [PDF]

open access: yes, 2012
We demonstrate a novel and versatile pipet-based approach to study the landing of individual nanoparticles (NPs) on various electrode materials without any need for encapsulation or fabrication of complex substrate electrode structures, providing great ...
Kleijn, Steven E. F.   +5 more
core   +1 more source

Metal-Based Nanoparticles as Antimicrobial Agents: An Overview

open access: yesNanomaterials, 2020
Metal-based nanoparticles have been extensively investigated for a set of biomedical applications. According to the World Health Organization, in addition to their reduced size and selectivity for bacteria, metal-based nanoparticles have also proved to ...
Elena Sánchez-López   +14 more
doaj   +1 more source

How toxic are gold nanoparticles? The state-of-the-art. [PDF]

open access: yes, 2015
With the growing interest in biotechnological applications of gold nanoparticles and their effects exerted on the body, the possible toxicity is becoming an increasingly important issue.
Cametti, Cesare   +3 more
core   +1 more source

AuNPs for identification of molecular signatures of resistance [PDF]

open access: yesFrontiers in Microbiology, 2014
The increasing levels of drug resistance are one of biggest threats to overcome microbial infection. The ability to rapidly and accurately detect a given pathogen and its drug resistance profile is essential for the appropriate treatment of patients and for preventing further spread of drug-resistant strains.
Bruno eVeigas   +3 more
openaire   +3 more sources

Recent Advances in the Green Synthesis of Gold and Silver Nanostructures for Augmented Anti-Microbial Activity [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2022
Green synthesis refers to the synthesis of nanoparticles using plants and microorganisms. It is preferred over conventional methods as its sustainable, eco-friendly, cost effective and rapid method.
Tashi Tenzin, Amrinder Kaur
doaj  

Biosynthesis of Gold Nanoparticles (AuNPs) with Dimrit Raisin Extract and Their Degradation Activity for Water Contaminants

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2022
AuNPs are being conventionally synthesized by traditional methods (physical and/or chemical) with preferred and well-defined morphology, size and shape. On the other hand, it has been reported that these methods involve difficult reaction conditions and ...
Yasin Arslan, Diğdem Trak
doaj   +1 more source

Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces [PDF]

open access: yesNanomaterials, 2013
This study evaluates the effectiveness of vapour-phase deposition for creating sub-monolayer coverage of aminopropyl triethoxysilane (APTES) on silicon in order to exert control over subsequent gold nanoparticle deposition. Surface coverage was evaluated indirectly by observing the extent to which gold nanoparticles (AuNPs) deposited onto the modified ...
Chris J. Allender   +3 more
openaire   +3 more sources

High Conductance Ratio in Molecular Optical Switching of Functionalized Nanoparticle Self-Assembled Nanodevices [PDF]

open access: yes, 2015
Self-assembled functionalized nano particles are at the focus of a number of potential applications, in particular for molecular scale electronics devices. Here we perform experiments of self-assembly of 10 nm Au nano particles (NPs), functionalized by a
Cleri, Fabrizio   +6 more
core   +2 more sources

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