Results 81 to 90 of about 186,939 (353)

Nonlinear metal-dielectric nanoantennas for light switching and routing [PDF]

, 2012
We introduce a novel hybrid metal-dielectric nanoantenna composed of dielectric (crystalline silicon) and metal (silver) nanoparticles. A high-permittivity dielectric nanoparticle allows to achieve effective light harvesting, and nonlinearity of a metal ...
Kivshar, Yu. S., Krasnok, A. E., Noskov, R. E.   +2 more
core   +2 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Resonant Raman Scattering by quadrupolar vibrations of Ni-Ag Core-shell Nanoparticles

, 2002
Low-frequency Raman scattering experiments have been performed on thin films consisting of nickel-silver composite nanoparticles embedded in alumina matrix.
B. Palpant, B. Palpant, E. Duval, E. Duval, E. Duval, Emmanuel Cottancin, Eugène Duval, G. Mariotto, H. Lamb, H. Portales, H. Portales, Hervé Portales, J. Wittmer, J.-L. Rousset, Jean Lermé, Lucien Saviot, M. Gaudry, M. Pellarin, Michel Broyer, Michel Pellarin, Mélanie Gaudry   +20 more
core   +3 more sources

The surface reactivity of iron oxide nanoparticles as a potential hazard for aquatic environments: A study on Daphnia magna adults and embryos [PDF]

, 2018
open5noNano-ecotoxicology is extensively debated and nanomaterial surface reactivity is an emerging topic. Iron oxide nanoparticles are widely applied, with organic or inorganic coatings for stabilizing their suspensions.

core   +1 more source

Nitrification inhibition by silver nanoparticles

Water Science and Technology, 2009
Nitrification inhibition by silver nanoparticles (nanosilver) was evaluated by extant respirometry using enriched nitrifying bacteria isolated from wastewater treatment plants. Silver nanoparticles were more toxic than silver ions or silver chloride colloids, all of which did not disrupt cell membrane integrity at 1 mg/L Ag.
O K, Choi, Z Q, Hu
openaire   +2 more sources

Silver Release from Silver Nanoparticles in Natural Waters [PDF]

Environmental Science & Technology, 2013
Silver nanoparticles (AgNPs) are used increasingly in consumer products for their antimicrobial properties. This increased use raises ecological concern because of the release of AgNPs into the environment. Once released, zero-valent silver may be oxidized to Ag(+) and the cation liberated or it may persist as AgNPs.
J, Dobias, R, Bernier-Latmani
openaire   +2 more sources

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Dual-mechanism antimicrobial polymer-ZnO nanoparticle and crystal violet-encapsulated silicone [PDF]

, 2014
The prevalence of healthcare-associated infection caused by multidrug-resistant bacteria is of critical concern worldwide. It is reported on the development of a bactericidal surface prepared by use of a simple, upscalable, two-step dipping strategy to ...
Aiken, Arad, Bondarenko, Bozja, Brown, Churchman, Costa, Cushen, Decraene, Decraene, Dunnill, Dunnill, Dunnill, Edmiston, Hamblin, Hassan, Hedin, Hilpert, Hong, Hoseinzadeh, Kawamoto, Kawamoto, Liu, MacDonald, Marais, Marais, Mikolay, Nagarajan, Naik, Nel, Noimark, Noimark, Noimark, Noimark, Orchard, Pasquet, Perni, Perni, Perni, Perni, Perni, Pinnell, Raghupathi, Rapsch, Reddy, Saji, Saji, Salgado, Salgueiro, Schmidt, Schmidt, Stilling, Stilling, Tayel, Vandebriel, Wainwright, Williams, Xie, Zhang   +58 more
core   +1 more source

Structure of Gold–Silver Nanoparticles

The Journal of Physical Chemistry C, 2017
Nanoparticles with nominal structures of Au@Ag (core@shell) and Au@Ag@Au (core@shell@shell) were prepared using the sequential citrate reduction technique and characterized using routine characterization techniques, including transmission electron microscopy.
Ian J. Godfrey, Andrew J. Dent, Ivan P. Parkin, Shinya Maenosono, Gopinathan Sankar   +4 more
openaire   +2 more sources

Biosynthesis of nanoparticles and silver nanoparticles [PDF]

Bioresources and Bioprocessing, 2015
In this century, the development of nanotechnology is projected to be the establishment of a technological evolutionary of this modern era. Recently, nanotechnology is one of the most active subjects of substantial research in modern material sciences and hence metal nanoparticles have a great scientific interest because of their unique optoelectronic ...
Cheah Liang Keat, Azila Aziz, Ahmad M Eid, Nagib A. Elmarzugi   +3 more
openaire   +2 more sources