Results 21 to 30 of about 255,117 (293)

Discovery of (phenylureido)piperidinyl benzamides as prospective inhibitors of bacterial autolysin E from Staphylococcus aureus

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2018
Autolysin E (AtlE) is a cell wall degrading enzyme that catalyzes the hydrolysis of the β-1,4-glycosidic bond between the N-acetylglucosamine and N-acetylmuramic acid units of the bacterial peptidoglycan.
Jure Borišek   +7 more
doaj   +1 more source

Microwave synthesis of Oleylamine -capped Ag nanoparticles in aqueous solution

open access: yesMedžiagotyra, 2015
Ag nanoparticles have been synthesized using microwave irradiation. Oleylamine (OA) was used as stabilizer, Dimethylformamide (DMF) as reducing agent and deionized water as solvent.
Masoud KARIMIPOUR   +2 more
doaj   +1 more source

A Quantum Chemistry Approach Based on the Analogy with π-System in Polymers for a Rapid Estimation of the Resonance Wavelength of Nanoparticle Systems

open access: yesNanomaterials, 2019
In this paper, the Variational Method based on the Hückel Theory is applied to NPs chain and aggregate systems in order to estimate the energy of the plasmon and, in turn, the resonance wavelength shift, which is caused by the interaction of ...
Alessandro De Giacomo   +2 more
doaj   +1 more source

Gold-seeded Lithium Niobate Nanoparticles: Influence of Gold Surface Coverage on Second Harmonic Properties

open access: yesNanomaterials, 2021
Hybrid nanoparticles composed of an efficient nonlinear optical core and a gold shell can enhance and tune the nonlinear optical emission thanks to the plasmonic effect. However the influence of an incomplete gold shell, i.e., isolated gold nano-islands,
Rachael Taitt   +13 more
doaj   +1 more source

Determination of Morphological Parameters of Supported Gold Nanoparticles: Comparison of AFM Combined with Optical Spectroscopy and Theoretical Modeling versus TEM

open access: yesApplied Sciences, 2012
The morphology of small gold particles prepared by Volmer–Weber growth on sapphire substrates have been investigated by two different characterization techniques.
Frank Hubenthal   +2 more
doaj   +1 more source

Graphene Plasmon Resonances for Electrically-Tunable Sub-Femtometer Dimensional Resolution

open access: yesNanomaterials, 2020
A coupled graphene structure (CGS) is proposed to obtain an electrically tunable sub-femtometer (sub-fm) dimensional resolution. According to analytical and numerical investigations, the CGS can support two branches of localized surface plasmon ...
Zhiyong Wu   +7 more
doaj   +1 more source

Plasmon-Emitter Interactions at the Nanoscale [PDF]

open access: yes, 2019
Plasmon-emitter interactions are of paramount importance in modern nanoplasmonics and are generally maximal at short emitter-surface separations. However, when the separation falls below 10-20 nm, the classical theory progressively deteriorates due to ...
Christensen, Thomas   +5 more
core   +2 more sources

Plasmon-modulated photoluminescence enhancement in hybrid plasmonic nano-antennas

open access: yesNew Journal of Physics, 2020
In this work, we performed a systematic study on a hybrid plasmonic system to elucidate a new insight into the mechanisms governing the fluorescent enhancement process.
Alireza R Rashed   +4 more
doaj   +1 more source

Quantum plasmonics [PDF]

open access: yesNature Physics, 2013
Quantum plasmonics is a rapidly growing field of research that involves the study of the quantum properties of light and its interaction with matter at the nanoscale. Here, surface plasmons - electromagnetic excitations coupled to electron charge density waves on metal-dielectric interfaces or localized on metallic nanostructures - enable the ...
Tame, M. S.   +5 more
openaire   +2 more sources

Photo-Thermoelectric Conversion of Plasmonic Nanohole Array

open access: yesApplied Sciences, 2020
Plasmonic photo-thermoelectric conversion offers an alternative photodetection mechanism that is not restricted by semiconductor bandgaps. Here, we report a plasmonic photodetector consisting of an ultra-thin silver film with nanohole array, whose ...
Kaito Miwa   +3 more
doaj   +1 more source

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