Materials Literature
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In this paper, a simple lanthanide (Ln) doping route for modifying the crystal structure including crystal phase, shape, size and physics properties such as up conversion (UC) and magnetic properties of monodisperse multifunctional NaYbF4 nanocrystals is demonstrated. The results revealed that the crystal phase transf…
We show that micro-/nanostructure effects achieve water repellency of Morpho nestira butterfly wings under low temperature and changeable relative humidity. It is found that the multi-level micro-/nanostructures on wing scales effectively retard low-temperature-induced wetting, and achieve water repellency, accompanie…
We propose to measure the most accurate contact angle for calculation of solid surface tensions from the most mechanically stable drop. From tilting plate experiments, we probed the sliding behavior of sessile drops with equal volume but different contact angle. We measured two critical tilt angles for each drop. When…
We report the design of an optical floating-zone furnace for single-crystal growth under ultra-high vacuum (UHV) compatible conditions. The system is based on a commercial image furnace, which has been refurbished to be all-metal sealed. Major changes concern the use of UHV rotary feedthroughs and bespoke quartz-metal…
Graphene has generated much interest owing to its exceptional electronic properties and high mechanical strength. This has enabled new types of electronic devices and composite materials to be envisaged. The main problem is the availability of the material and the difficulties associated with its synthesis. Here we ha…
New p-type transparent conductive oxide materials, MoO3:In single crystal nanowires and amorphous films, are synthesized in this work. Both nanowires and amorphous films exhibit high optical transmittance, 80–88% for 80 nm thick films at 400–800 nm wavelength, and low resistivity (down to 5.98 × 10−4 Ω cm) suitable fo…
Present and prospective leather industry waste disposal In this paper general characteristics of the main leather industry waste regarding its amount reduction by thermal treatment have been presented. Both the tannery solid wastes and the sludge contain organic substances. Their energy value is more than 50% higher i…
A new family of amine- and ammonium-terminated hyperbranched polycarbosilanes (PCS) and dendrimers has been synthesized. The functionalization of a polycarbosilane matrix was carried out with peripheral allyl groups by two strategies in the case of PCS: 1) hydrosilylation of allyl amines with PCS containing terminal S…
MgH2, Mg-Ni-H and Mg-Fe-H nanoparticles inserted into ordered mesoporous carbon templates have been synthesized by decomposition of organometallic precursors under hydrogen atmosphere and mild temperature conditions. The hydrogen desorption properties of the MgH2 nanoparticles are studied by thermo-desorption spectros…
A vanadium-substituted polyoxometalate, K6[PW9V3O40]·4H2O, was used as a recyclable and effective catalyst for the oxidation of pyridines. The reactions were successfully conducted in water under mild conditions. The catalyst could be easily recovered and reused.
The controlled side-by-side assembly of gold nanorods in solution together with Raman reporter dye molecules to create small SERRS-active clusters stabilised by a surrounding polymer layer is demonstrated. This promising new class of nanotags offers several advantages over spherical nanoparticles for bioimaging and is…
BACKGROUND: Advances in nanotechnology have identified promising candidates for many biological and biomedical applications. Since the properties of nanoparticles (NPs) differ from that of their bulk materials, they are being increasingly exploited for medical uses and other industrial applications. The histological a…
Mechanical frothing is one of the most commonly used methods to create gas-liquid foams. Until recently, the polymerisation of mechanically frothed gas-liquid foams was limited to the synthesis of quasi two-dimensional polymer structures, such as films. In this study we show that three-dimensional bio-based polymer fo…
Here we elucidate the “cooperative effect” of carboxylic acid/amine on the size, shape, and multicolor output of fluoride upconversion nanoparticles (UCNPs) utilizing the amidation reaction. During the synthesis of NaYF4 UCNPs using oleic acid (OA) and octadecylamine (OM) as ligands, the evolution of the reaction solu…
A unique way to fabricate hollow microspheres by using an amphiphilic azo homopolymer (BP-AZ-CA) and photoinduced deformation behavior of the hollow structures in the solid state are reported.
A new chiral fluorescence receptor, designed to exploit aggregation-induced emission (AIE), exhibited not only an exceptionally high enantioselectivity but was also applicable to a wide range of chiral carboxylic acids. The fluorescence intensity ratio of two enantiomers ranged from 10 to 1.6 × 10(4) and could be used…
Information on orbital hybridization is very important to understand the structural, physical, and chemical properties of a material. Results of a comparative first-principles study on the behaviours of orbital hybridization in the two-dimensional single-element phases by carbon, silicon, and germanium are presented.…
Nano-sized biocompatible and biodegradable polymersomes were prepared based on poly(D,L-lactide)-block-poly(2-methacryloyloxyethyl phosphorylcholine) (PLA-b-PMPC) diblock copolymers and applied for the release anti-cancer drugs. Hydrophobic doxorubicin (DOX) and hydrophilic doxorubicin hydrochloride (DOX·HCl) were suc…
Ecological concerns have resulted in a renewed interest in natural, renewable resources-based and compostable materials. For this reason, material components such as natural fibres and biodegradable polymers can be considered as interesting alternatives for the development of new biodegradable composites.The aim of th…
Monodisperse Yb(3+)/Er(3+):MFCl nanocrystals were fabricated via a simple and effective seed-based chlorination route for the first time. Remarkably, their upconversion emissions are found to be greatly intensified compared with those of the well-reported Er(3+)/Yb(3+):SrF(2) with the same size and shape.