Results 81 to 90 of about 243,433 (224)

Strong luminescence quantum efficiency enhancement near prolate metal nanoparticles: dipolar versus higher-order modes [PDF]

arXiv, 2007
We present a theoretical study of the radiative and nonradiative decay rates of an optical emitter in close proximity to a prolate-shaped metal nanoparticle. We use the model developed by Gersten and Nitzan, that we correct for radiative reaction and dynamic depolarization and extend for prolate particle shapes.
arxiv  

Metallic nanoparticles induced antibiotic resistance genes attenuation of leachate culturable microbiota: The combined roles of growth inhibition, ion dissolution and oxidative stress

Environment International, 2019
The dissemination and propagation of antibiotic resistance genes (ARGs) is an emerging global health concern, and the potential effects of nanomaterials on ARGs fates have drawn much attention recently.
Yinglong Su, Dong Wu, Huipeng Xia, Congyan Zhang, Jianhong Shi, Kevin J. Wilkinson, Bing Xie   +6 more
doaj  

An Unprecedented Metal Distribution in Silica Nanoparticles Determined by Single-Particle Inductively Coupled Plasma Mass Spectrometry

Nanomaterials
Metal-containing nanoparticles are now common in applications ranging from catalysts to biomarkers. However, little research has focused on per-particle metal content in multicomponent nanoparticles.
Juan Han, Xu Wu, Julia Xiaojun Zhao, David T. Pierce   +3 more
doaj   +1 more source

Collective spontaneous emission of two atoms near metal nanoparticle [PDF]

arXiv, 2014
We present quantum-mechanical approach for collective spontaneous emission (superradiance) of emitters (as atoms) near metal nanoparticle, when frequencies of transitions of emitters coincide with frequency of localized plasmon resonance of the nanoparticle.
arxiv  

A narrative review on application of metal and metal oxide nanoparticles in endodontics

Heliyon
The distinct physicochemical and biological characteristics of metal and metal oxide nanoparticles have attracted considerable interest in various branches of dentistry as potential solutions to the problems associated with conventional dental treatments
Roohollah Sharifi, Ahmad Vatani, Amir Sabzi, Mohsen Safaei   +3 more
doaj  

Dendrimer-Encapsulated Metal Nanoparticles: Synthesis, Characterization, and Applications to Catalysis [PDF]

, 2000
Richard M. Crooks, Mingqi Zhao, Li Sun, Victor Chechik, Lee K. Yeung   +4 more
openalex   +1 more source

Nanohybrids of Metal Nanoparticles and Block Copolymers. Control of Spatial Distribution of the Nanoparticles in Microdomain Space [PDF]

, 2000
Arimichi Okumura, Kiyoharu Tsutsumi, Takeji Hashimoto   +2 more
openalex   +1 more source

Metallic Nanoparticle: A Review [PDF]

Biomedical Journal of Scientific & Technical Research, 2018
Metallic nano particle is nano sized metals with dimensions (length, width, thickness) within the size range of 1-100nm. In 1857, Faraday first investigated the existence of metallic nano particles in solution.
openaire   +2 more sources

Surface collective excitations in ultrafast pump-probe spectroscopy of metal nanoparticles [PDF]

, 2000
Tigran V. Shahbazyan, I. E. Perakis
openalex   +1 more source

Recent Advances in Noble Metal Nanocatalysts for Suzuki and Heck Cross-Coupling Reactions

Molecules, 2010
Since metal nanoparticles have a high surface-to-volume ratio and very active surface atoms, they are very attractive catalysts for a wide variety of organic and inorganic reactions, compared to bulk catalysts.
Radha Narayanan
doaj   +1 more source