Small angle X-ray and neutron scattering on Cd and S doped glass annealed at 600 °C shows after the first 9 h nucleation and growth of spherical CdS nanoparticles with a radius of up to 34±4 Å. Towards 48 h the particle shape has changed into spheroidal with short and long axis of 40±2 and 120±2 Å, respectively. After the nucleation is completed after 24 h, further growth in this amorphous envi...

Block copolymer melts have been previously used to control the position and alignment of anisotropic nanoparticles. In this work, 2D 3D mesoscopic simulations are explore phase behavior block copolymer/nanoparticle systems. The method combines a time-dependent Ginzburg-Landau for polymer Brownian dynamics Rhomboidal spheroidal shaped particles simulated in two three dimensions, respectively. It...

Over 130 y have passed since Charles Darwin first discovered that the adventitious roots of English ivy (Hedera helix) exude a yellowish mucilage that promotes the capacity of this plant to climb vertical surfaces. Unfortunately, little progress has been made in elucidating the adhesion mechanisms underlying this high-strength adhesive. In the previous studies, spherical nanoparticles were obse...

Hydrogen sensing of thick films of nanoparticles of pristine, 0.2, 1.0 and 2.0 atomic percentage of Pt concentration doped ZnO were investigated. ZnO nanoparticles doped with 0.2-2.0 at.% Pt were successfully produced in a single step by flame spray pyrolysis (FSP) technique using zinc naphthenate and platinum(II) acetylacetonate as precursors dissolved in xylene. The particle properties were a...

The spheroidal wave functions, which are the solutions to the Helmholtz equation in spheroidal coordinates, are notoriously difficult to compute. Because of this, practically no programming language comes equipped with the means to compute them. This makes problems that require their use hard to tackle. We have developed computational software for calculating these special functions. Our softwa...

In the last years there have been multiple proposals in nanophotonics to mimic topological condensed matter systems. However, nanoparticles degrees of freedom that atoms lack of, like dimensions or shape, which can be exploited explore topology beyond electronics. Elongated act projectors electric field direction major axis. Then, by orienting them an array coupling between tuned, allowing open...

Article history: Received 11 October 2013 Received in revised form 27 January 2014 Accepted 6 March 2014 Available online 18 March 2014

The interaction of a nanoparticle with light is affected by nanoparticle geometry and composition, as well as by focused beam parameters, such as the polarization and numerical aperture of the beam. The interaction of a radially focused beam with a prolate spheroidal nanoparticle is particularly important because it has the potential to produce strong near-field electromagnetic radiation. Stron...