Materials Literature
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We study the filling of single-walled carbon nanotubes (SW- CNTs) with ferrocene molecules. Using e-DIPS SWCNTs with a mean diameter of 1.7 nm, we obtain a filling factor as high as 90%. At elevated temperatures in high vacuum the filled SWCNTs are transformed to double-walled carbon nanotubes (DWCNTs). Temperature de…
Abstract Titanium dioxide (TiO 2 ) has been widely used in many nanotechnology areas including nanomedicine, where it could be proposed for the photodynamic and sonodynamic cancer therapies. However, TiO 2 nanoformulations have been shown to be toxic for living cells. In this article, we report the development of a ne…
The isobaric transformation behavior of unannealed (uHDA) and expanded (eHDA) high-density amorphous ice at pressures up to 0.20 GPa is compared using powder x-ray diffraction and dilatometry. eHDA shows high thermal stability and crystallizes to a single ice phase only, whereas uHDA shows much lower thermal stability…
Abstract The electrospinning of a polymer melt is an interesting process for medical applications because it eliminates the cytotoxic effects of solvents in the electrospinning solution. Wound dressings made from thermoplastic polyurethane (TPU), particularly as a porous structured electrospun membrane, are currently…
We propose a theory of spin relaxation of electrons and holes in two-dimensional hexagonal crystals such as atomic layers of transition-metal dichalcogenides (MoS${}_{2}$, WSe${}_{2}$, etc.). We show that, even in intrinsically defect-free crystals, their flexural deformations are able to generate spin relaxation of c…
Understanding molecular interactions at the interfaces of nanoparticles is fundamentally important because they determine the stability, affinity, functionality, and assembly of nanoparticles. However, probing the governing intermolecular forces at the interfaces, particularly for the nanoparticles dispersed in soluti…
In pursuit of whether nanocrystallinity could lead to higher anion conductivity, research has revealed contradicting results exposing the limited understanding of point defect energetics at grain boundaries (GBs)/interfaces. By disentangling and addressing key GB energetics issues related to segregation, migration and…
Nanostructured thin films of vanadium oxides were deposited using electric field assisted chemical vapour deposition. The films were characterised using scanning electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy. It was found that the films had open and porous morphologies…
We have successfully developed an effective supercritical CO 2 (sc-CO 2 ) emulsion-assisted electrochemical approach for cathodic deposition of ZnO mesocrystals. The sc-CO 2 was introduced along with a nonionic surfactant in the process to form emulsified electrolyte, which significantly increased the supersaturation…
In this manuscript, the Kumada catalyst transfer polymerization (KCTP) of cyclopenta[2,1- b;3,4- b ′]dithiophene (CPDT), a monomer consisting of two fused thiophene entities, is investigated. It is shown that this polymerization follows a controlled chain-growth mechanism. Furthermore, the formation of block copolymer…
As a heavy rare earth oxide, erbium oxide (Er2O3) has many attractive properties. Monoclinic Er2O3 has useful properties not found in stable cubic Er2O3, such as unique optical properties and high radiation damage tolerance. In this study, cubic Er2O3 coating and Er2O3 coating with mixed phases were prepared. The Rama…
We report the use of a spray pyrolysis method to synthesize high surface area (BET surface area of 139 m2 g−1) self-organized, micron sized urchin-like composites made up of reduced graphene oxide and needle-shaped manganese oxide (rGO–Mn2O3–Mn3O4). Maximum capacitances of 425 Fg−1 at 5 mV s−1 from a three electrode s…
In this study, poly(ethylene glycol) (PEG) and heparin were sequentially immobilized on a titanium surface by the carbodiimide covalent coupling method with the aim to improve the blood compatibility of titanium and enhance endothelial cell adhesion and proliferation. The results of attenuated total reflectance Fourie…
Orthorhombic NdFeO3 (space group: Pnma) crystals with controlled morphologies and sizes were synthesized via a hydrothermal method. The morphologies of the final products strongly depend on the concentration of alkali. When the concentration of the KOH solution was adjusted from 16 M to 19 M, cuboid, cross-shaped and…
A new family of sulfur-containing plasticizers derived from fatty acids has been developed. The synthetic approach is based on the thiol–ene addition of alkyl thiols to the double bond of technical oleic acid, followed by oxidation of the sulfide group to either sulfoxide or sulfone groups. It has been found that both…
We have synthesized graphene by reducing carbon dioxide in magnesium and calcium metal flames. The as-prepared graphene has been used as conductive additive to improve the electrical conduction of activated carbon-based supercapacitor electrodes. The graphene/activated carbon composite electrode showed an outstanding…
The syn-anti conformational switching has been demonstrated in the ethane-bridged dicobalt(II)bisporphyrin which is present in the syn-form only. The addition of either perylene or axial ligands to Co(II)(bisporphyrin) completely transforms the syn form into the anti because of strong π-π interaction and axial coordin…
We have demonstrated a highly efficient electrically tunable color filter, which provides precise control of color output, taking advantage of a nano-photonic polarization-tailored dichroic resonator combined with a liquid-crystal based polarization rotator. The visible dichroic resonator based on the guided mode reso…
Highly electrically conductive materials with low heat transfer rates are of very high importance for high temperature fuel cell technologies and the refractory material industry. We aim to develop such materials with high electrical conductivities/high thermal resistivities by creating composite materials of graphene…
Stimuli-responsive drug delivery systems were obtained by encapsulating near-infrared (NIR) sensitive hollow gold nanoshells (HGNs) together with the molecule to be released into biodegradable poly-lactic acid (PLA) sub-micron particles. The rapid heating of the PLA particles caused by NIR radiation enabled use of the…