搜索结果: 1-15 共查到“物理学 nanoparticles”相关记录47条 . 查询时间(0.078 秒)
Study in Nature:Engineers find better way to detect nanoparticles（图）
Nature Engineers detect nanoparticles
2017/9/5
Specifically, the two tuning nanoscatterers set the resonator at an "exceptional point," a special state of a system at which unusual phenomena may occur. The third nanoscatterer perturbs the system, ...
Capillary Interactions Among Microparticles and Nanoparticles at Fluid Interfaces
Capillary Microparticles Nanoparticles Fluid Interfaces
2014/11/20
Particles can be adsorbed to liquid-fluid interface to minimize interfacial energy. The adsorbed particles interact in many ways. There has been a lot of theoretical predictions as well as experimenta...
Self-Assembly of Nanoparticles at Liquid-Liquid Interfaces
adsorption energy Coulomb blockade liquid interfaces nanoparticles self-assembly
2014/11/20
In this thesis, we studied the self-assembly of nanoparticles at liquid metal-water interfaces and oil-water interfaces. We demonstrated a simple approach to form nanostructured electronic devices by ...
Spiraling light, nanoparticles and insights into life's structure（图）
Spiraling light nanoparticles
2014/12/1
ANN ARBOR—Twisted light from ancient stars may have played a role in locking in aspects of the structure of life on Earth, and new findings from the University of Michigan provide insights into how th...
Theory for absorption of ultrashort laser pulses by spheroidal metallic nanoparticles
absorption ultrashort laser pulses spheroidal metallic
2011/8/18
Abstract: The theory for the electric and magnetic fields energy absorption by small metallic particles subjected to the irradiation by ultrashort laser pulses of different duration in the region of s...
Origin of optical second-harmonic generation in spherical gold nanoparticles: Local surface and nonlocal bulk contributions
Origin optical second-harmonic generation spherical gold nanoparticles Local surface nonlocal bulk contributions
2011/8/5
Abstract: The second-harmonic generation of 150 nm spherical gold nanoparticles is investigated both experimentally and theoretically. We demonstrate that the interference effects between dipolar and ...
Optical and transport properties of spheroidal metal nanoparticles with account for the surface effect
Optical transport properties spheroidal metal nanoparticle
2011/8/4
Abstract: The kinetic approach is applied to develop the Drude-Sommerfeld model for studying of the optical and electrical transport properties of spheroidal metallic nanoparticles, when the free elec...
Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium
Ultrathin optical switch liquid crystal silver nanoparticles tunable indefinite medium
2011/8/2
Abstract: We predict that a liquid crystal/silver nanoparticles mixture can be designed so that, in a frequency range, its effective ordinary and extraordinary permittivities have real parts of differ...
Shifted loops and coercivity from field imprinted high energy barriers in ferritin and ferrihydrite nanoparticles
Shifted loops coercivity from field ferrihydrite nanoparticles
2010/11/25
We show that the coercive field in ferritin depends on the maximum magnetic field in a ysteresis loop and that coercivity and loop shifts depend both on the maximum and cooling fields. The time depend...
Critical behavior of ferromagnetic pure and random diluted nanoparticles with competing interactions: variational and Monte Carlo approaches
Critical behavior of ferromagnetic pure random diluted nanoparticles interactions: variational
2010/11/23
The magnetic properties and critical behavior of both ferromagnetic pure and metallic nanopar-
ticles having concurrently atomic disorder, dilution and competing interactions, are studied in the fram...
Magnetic nanoparticles with bulk-like properties
Magnetic nanoparticles bulk-like properties
2010/11/22
The magnetic behavior of Fe3−xO4 nanoparticles synthesized either by high-temperature decomposition of an organic iron precursor or low-temperature co-precipitation in aqueous conditions, is com...
Conduction of DNA molecules attached to a disconnected array of metallic Ga nanoparticles
Conduction of DNA molecules disconnected array of metallic Ga nanoparticles
2010/11/17
We have investigated the conduction over a wide range of temperature of DNA molecules deposited across slits etched through a few nanometers thick platinum lm. The slits are insulating before DNA d...
Nonmonotonic Evolution of the Blocking Temperature in Dispersions of Superparamagnetic Nanoparticles
Nonmonotonic Evolution of Blocking Temperature Superparamagnetic Nanoparticles
2010/11/22
We use a Monte Carlo approach to simulate the influence of the dipolar interaction on assemblies of monodisperse superparamagnetic γ-Fe2O3 nanoparticles. We have identified a critical concentration c*...
Pt-Decorated PdCo@Pd/C Core-Shell Nanoparticles with Enhanced Stability and Electrocatalytic Activity for Oxygen Reduction Reaction
Core-Shell Nanoparticles Enhanced Stability Electrocatalytic Activity Oxygen Reduction Reaction
2010/11/25
The high cost and scarcity of Pt pose serious problems for the widespread commercialization of fuel cell technologics.1 Recently, Pd-based cathode catalysts have attracted much attention because Pd po...
Interactions between sub-10 nm iron and cerium oxide nanoparticles and 3T3 fibroblasts : the role of the coating and aggregation state
Nanoparticle Magnetism Cell proliferation Cell viability Fibroblast Polyacrylic acid
2010/11/19
Recent nanotoxicity studies revealed that the physico-chemical characteristics of engineered nanomaterials play an important role in the interactions with living cells. Here, we report on the toxicity...