Results 41 to 50 of about 282,404 (300)

Tunable mechanical and thermal properties of ZnS/CdS core/shell nanowires

open access: yes, 2015
Using all atom molecular dynamics (MD) simulations, we have studied the mechanical properties of ZnS/CdS core/shell nanowires. Our results show that the coating of a few atomic layer CdS shell on the ZnS nanowire leads to a significant change in the ...
Dasgupta, Chandan   +2 more
core   +1 more source

Polar optical phonons in core-shell semiconductor nanowires [PDF]

open access: yes, 2013
We obtain the the long-wavelength polar optical vibrational modes of semiconductor core-shell nanowires by means of a phenomenological continuum model.
Chico, Leonor   +3 more
core   +3 more sources

Advances in the ab initio description of nuclear three-cluster systems

open access: yes, 2015
We introduce the extension of the ab initio no-core shell model with continuum to describe three-body cluster systems. We present results for the ground state of 6He and show improvements with respect to the description obtained within the no-core shell ...
Hupin, Guillaume   +3 more
core   +3 more sources

Single-shot 3D coherent diffractive imaging of core-shell nanoparticles with elemental specificity. [PDF]

open access: yes, 2018
We report 3D coherent diffractive imaging (CDI) of Au/Pd core-shell nanoparticles with 6.1 nm spatial resolution with elemental specificity. We measured single-shot diffraction patterns of the nanoparticles using intense x-ray free electron laser pulses.
Dias, Carlos Sato Baraldi   +31 more
core   +3 more sources

TO THE PROBLEM OF STABILITY/INSTABILITY OF BIMETALLIC STRUCTURES Co (CORE)/ Au (SHELL) AND Au (CORE)/ Co (SHELL): ATOMISTIC SIMULATION

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
In this work, we performed atomistic modeling of the behavior of Co (core) – Au (shell) and Au (core) – Co (shell) during thermal exposure in order to study the stability/instability problem for the above nanostructures using the tight binding potential ...
N.Yu. Sdobnyakov   +7 more
doaj   +1 more source

Sequential Growth of Uniform β-NaYF4@β-NaLnF4 (Ln = Y, Lu, Yb) Microcrystals with Luminescent Properties of Multicolor Tuning and Dual-Mode Emission

open access: yesNanomaterials, 2017
We synthesized the uniform core-shell microstructured compounds with hexagonal phase NaYF4:Er/Yb microrods as the core and hexagonal phase NaLnF4 (NaYbF4, NaLuF4:Yb/Tm, NaYF4:Yb/Er, NaYF4:Eu) as the shell based on the hydrothermal reaction.
Dandan Ju   +8 more
doaj   +1 more source

Core–Shell Particles: From Fabrication Methods to Diverse Manipulation Techniques

open access: yesMicromachines, 2023
Core–shell particles are micro- or nanoparticles with solid, liquid, or gas cores encapsulated by protective solid shells. The unique composition of core and shell materials imparts smart properties on the particles.
Ajeet Singh Yadav   +6 more
doaj   +1 more source

Electronic Properties of Strained Si/Ge Core-Shell Nanowires

open access: yes, 2010
We investigated the electronic properties of strained Si/Ge core-shell nanowires along the [110] direction using first principles calculations based on density-functional theory. The diameter of the studied core-shell wire is up to 5 nm.
Ashcroft N. W.   +3 more
core   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

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