Results 71 to 80 of about 19,499 (187)

Analysis of electronic structure of boron nitride nanotubes with different positions of intrinsic impurities

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2014
The pristine boron nitride nanotubes have a large direct band gap around 5 eV. This band gap can be engineered by doping. We investigate electronic structure of the doped hexagonal boron nitride (5,5) nanotubes using the linearized augmented cylindrical ...
Fernando Gomes   +2 more
doaj  

Structure and Stability of B10N14: Cages, Sheets, and Rings

open access: yesJournal of Chemistry, 2019
Boron nitride is a material similar to carbon in its ability to adopt numerous molecular forms, including two-dimensional sheets and three-dimensional cages and nanotubes.
Melanie Walker   +4 more
doaj   +1 more source

Boron Nitride Nanotube Addition Enhances the Crystallinity and Cytocompatibility of PVDF-TrFE

open access: yesFrontiers in Chemistry, 2019
Analysis of the cellular response to piezoelectric materials has been driven by the discovery that many tissue components exhibit piezoelectric behavior ex vivo. In particular, polyvinylidene fluoride and the trifluoroethylene co-polymer (PVDF-TrFE) have
Anup Poudel   +3 more
doaj   +1 more source

Efficient Boron-Carbon-Nitrogen Nanotube Formation Via Combined Laser-Gas Flow Levitation [PDF]

open access: yes
A process for producing boron nitride nanotubes and/or boron-carbon-nitrogen nanotubes of the general formula BxCyNz. The process utilizes a combination of laser light and nitrogen gas flow to support a boron ball target during heating of the boron ball ...
Jordan, Kevin   +2 more
core   +1 more source

IMP Science Gateway: from the Portal to the Hub of Virtual Experimental Labs in Materials Science

open access: yes, 2014
"Science gateway" (SG) ideology means a user-friendly intuitive interface between scientists (or scientific communities) and different software components + various distributed computing infrastructures (DCIs) (like grids, clouds, clusters), where ...
Baskova, Olexandra   +5 more
core   +1 more source

A comparative study of two molecular mechanics models based on harmonic potentials

open access: yes, 2012
We show that the two molecular mechanics models, the stick-spiral and the beam models, predict considerably different mechanical properties of materials based on energy equivalence.
Guo, Wanlin   +5 more
core   +1 more source

Boron nitride nanotube-mediated stimulation of cell co-culture on micro-engineered hydrogels.

open access: yesPLoS ONE, 2013
In this paper, we describe the effects of the combination of topographical, mechanical, chemical and intracellular electrical stimuli on a co-culture of fibroblasts and skeletal muscle cells.
Leonardo Ricotti   +11 more
doaj   +1 more source

Exact solutions of bending deflection for single-walled BNNTs based on the classical Euler–Bernoulli beam theory

open access: yesNanotechnology Reviews, 2020
At the nanolevel, a classical continuum approach seems to be inapplicable to evaluate the mechanical behaviors of materials. With the introduction of scale parameter, the scale effect can be reasonably described by the modified continuum theory.
Yawei Dong, Yang Zhang, Jianwei Yan
doaj   +1 more source

Synthesis of boron nitride nanotubes from unprocessed colemanite

open access: yesBeilstein Journal of Nanotechnology, 2013
Colemanite (Ca2B6O11·5H2O) is a natural and new precursor material for the synthesis of boron nitride nanotubes (BNNTs). BNNTs have been synthesized from unprocessed colemanite for the first time.
Saban Kalay   +2 more
doaj   +1 more source

Optical excitations in hexagonal nanonetwork materials

open access: yes, 2002
Optical excitations in hexagonal nanonetwork materials, for example, Boron-Nitride (BN) sheets and nanotubes, are investigated theoretically. The bonding of BN systems is positively polarized at the B site, and is negatively polarized at the N site ...
A. Mielke   +12 more
core   +3 more sources

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