Materials Literature
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The claims of environmental protection and the lack of petroleum resources provide a new opportunity for developing plastic materials derived from biopolymer resources. Starch is one of the most studied and promising raw materials for the production of biodegradable plastics, because starch is quite cheap, abundant, b…
Monodisperse fluorescent organic/inorganic composite nanoparticles are synthesized through the spontaneous self-assembly of block copolymer polystyrene- block -poly(vinylpyridine) and rare-earth ions (europium, terbium, thulium, etc.). Depending on the rare-earth ions selected, tunable light-emission colors, including…
In materials science the phase-field crystal approach has become popular to model crystallization processes. Phase-field crystal models are in essence Landau-Ginzburg-type models, which should be derivable from the underlying microscopic description of the system in question. We present a study on classical density fu…
Oxygen (O2) presence in food packages is mainly due to failures in the packaging process, such as mixture of gases containing oxygen residues, or inefficient vacuum. Vacuum packaging has been widely used to eliminate oxygen in the package prior to sealing. However, the oxygen that permeates from the outside environmen…
The catalytic effect of a perpendicular electric field on the reversible transition of graphene with water from hydrophobic to hydrophilic has been investigated by using first principles calculations. It is found that a negative electric field F can reduce the energy barrier for H 2 O dissociative adsorption on graphe…
We have fabricated well-defined nanostructures such as SiO 2 -coated Ag nanoparticles (NPs) connected with quantum dots (QDs) (Ag/SiO 2 -QDs) so as to control the fluorescence enhancement induced by localized surface plasmon resonance. Namely, the distance between Ag NP and QD should be noted as a controllable model t…
Exfoliation of layered bulk VO2(B) with strong covalent bonding by a convenient room-temperature intercalation-deintercalation strategy is proposed to obtain ultrathin sheets with atomic thickness of ∼0.62 nm. This VO2(B) single layer possesses a more symmetric atomic structure with slight lattice expansion that widen…
Natural nanoparticles are present in soils but their abundance, properties and interactions with other soil components have not been studied widely. We used an ultrasonic‐centrifugal method to disperse and extract nanoparticles from 12 soils sampled in different regions of China. Various techniques were used to study…
We perform a simplified analysis of the edge excitations of the canted antiferromagnetic (CAF) phase of the $\ensuremath{\nu}=0$ quantum Hall state in both monolayer and bilayer graphene. Namely, we calculate, within the framework of quantum Hall ferromagnetism, the mean-field quasiparticle spectrum of the CAF phase n…
Highly oriented graphene nanoribbons sheets and yarns are produced by chemical unzipping of self-standing multiwalled carbon nanotube (MWNT) sheets. The as-produced yarns - after being chemically and thermally reduced - exhibit a good mechanical, electrical, and electrochemical performance.
Because nanoparticles are finding uses in myriad biomedical applications, including the delivery of nucleic acids, a detailed knowledge of their interaction with the biological system is of utmost importance. Here the size-dependent uptake of gold nanoparticles (AuNPs) (20, 30, 50 and 80 nm), coated with a layer-by-la…
New piezoelectric ceramics, 0.71 BiFe 1− x ( Ni 1/2 Ti 1/2 ) x O 3 −0.29 BaTiO 3 +0.6 wt% MnO 2 [ BFNT x – BT ] ( x = 0–0.09), were fabricated using conventional mixed‐oxide method. It was found that the introduction of BNT into BF ‐ BT system caused insignificant change in crystal structure, which is a single‐phase p…
Beaded SiC quantum rings can be prepared by introducing a carbonization reaction at the laser-induced Si plasma and ethanol interface (referred to as reactive laser ablation). An anomalous red spectral shift is observed when the diameter of SiC nanocrystals within the SiC quantum rings is smaller than 3 nm. Experiment…
Mussel foot proteins (mfps) mediate fouling by the byssal holdfast and have been extensively investigated as models for versatile polymer-mediated underwater adhesion and coatings. However, insights into the structural properties of mfps have lagged far behind the nanomechanical advances, owing in part to the inabilit…
Fabricating vertically ordered and etchable high aspect ratio nanodomains of block copolymer (BCP) thin films on diverse substrates via continuous processing dynamic cold zone annealing (CZA) is particularly attractive for nanomanufacturing of next-generation electronics. Previously, we reported dynamic CZA studies wi…
In order to explore the structural roles of sodium in boroaluminosilicate glasses, we have designed ten Na${}_{2}$O-B${}_{2}$O${}_{3}$-Al${}_{2}$O${}_{3}$-SiO${}_{2}$ glasses with varied [Al${}_{2}$O${}_{3}$]/[SiO${}_{2}$] ratio to access different regimes of sodium behavior. Multinuclear nuclear magnetic resonance (N…
Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promise for its potential applic…
Oil Palm Biomass Fibres and Recent Advancement in Oil Palm Biomass Fibres Based Hybrid Biocomposites
We report the growth of single-crystalline Bi2Se3 nanoribbons with lengths up to several millimeters via a catalyst-free physical vapor deposition method. Scanning transmission electron microscopy analysis reveals that the nanoribbons grow along the (1120) direction. We obtain a detailed characterization of the electr…
Radiation-induced ratchet electric currents have been studied theoretically in graphene with a periodic noncentrosymmetric lateral potential. The ratchet current generated under normal incidence is shown to consist of two contributions, one of them being polarization-independent and proportional to the energy relaxati…