Materials Literature
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A successful attempt in the functionalization and solubilization of boron nitride nanotubes is reported, and a functionalization mechanism based on interactions of amino functional groups with nanotube surface borons is proposed.
TAT (a cell penetrating peptide)-conjugated CdSratioMn/ZnS quantum dots (Qdots), intra-arterially delivered to a rat brain, rapidly (within a few minutes) labeled the brain tissue without manipulating the blood-brain-barrier (BBB). Qdot loading was sufficiently high that it allowed a gross fluorescent visualization of…
A new method for delamination of layered double hydroxides (LDHs) is demonstrated: large quantities of LDHs containing lactate delaminated in water at room temperature to form stable translucent colloidal solutions.
We review the optical and electrical properties of solids that are composed of semiconductor nanocrystals. Crystals, with dimensions in the nanometre range, of II-VI, IV-VI and III-V compound semiconductors, can be prepared by wet-chemical methods with a remarkable control of their size and shape, and surface chemistr…
Benzyl alcohol is oxidized selectively to benzaldehyde with high yield, with a little formation of benzylbenzoate, by molecular oxygen over a reusable nano-size gold catalyst supported on U3O8, MgO, Al2O3 or ZrO2 in the absence of any solvent.
Wurtzite ZnO hexagonal micro-pyramids, with all exposed surfaces being polar +/- (0001) and {1011} planes, have been successfully synthesized using ionic liquids as solvents.
Distinct surface effects on the luminescence properties of highly crystalline LaF3:Eu nanoparticles have been demonstrated, by incorporating different ligands on their surface as well as forming core–shell nanoparticles (i.e. doped LaF3:Eu core with an undoped LaF3 shell). These studies have established that the surfa…
In the present work we investigate the wetting behaviour of nanotubular TiO2 layers (π-TiO2) grown by electrochemical anodization of Ti. As-prepared π-TiO2 layers show a super-hydrophilic behaviour while π-TiO2 layers covered by octadecylphosphonic acid (C18H37PO(OH)2) monolayer show super-hydrophobic behaviour. We de…
Natural fibers are potentially a high-performance and non-abrasive reinforcing fiber source. In this study, mechanical properties of polypropylene (PP) composites with various natural fibers such as old newsprint, kraft pulp and hemp were studied. The effect of a low-molecular weight, maleated type coupling agent, on…
In order to develop new biomedical shape memory alloys, mechanical properties and shape memory behavior of Ti–22Nb–(0.5–2.0)O(at%) alloys were investigated by tensile tests at various temperatures and X-ray diffraction measurement. The Ti–Nb–O alloys were fabricated by an arc melting method and then homogenized at 127…
Human skin fibroblasts were cultured on sericin prepared from cocoon shells. The living cell number after 72 h was enhanced to 250% of the no-sericin control. The increase was due to the acceleration of the initial attachment of the cells. It was found that sericin M, the main component of about 400 kDa, and its serin…
For the first time, natural cellulose fibers having properties between cotton and linen and suitable for various industrial applications have been extracted from cornhusks. High quality cellulosic fibers from cornhusks mean food, clothing and other major industrial products from the same source without the need for an…
A preliminary investigation of the fouling behaviour of smooth and roughened superhydrophobic coatings is reported. The effect of nanoscale interfacial roughness on the adhesion of single (SW8) and mixed cultures of micro-foulant for periods of up to 6 months was assessed using visual and wettability measurements. Det…
Biological organisms are able to direct the formation of patterned and hierarchical biomineral structures. Extractable organic materials have been found entrapped in diatom, sponge and plant biosilica, some of which have been isolated by selective chemical dissolution methods and their composition and structure studie…
In reduced dimensions, materials display characteristics quite different from their bulk behavior. Interestingly, most viruses, bacteria, pathogens, particles in gas phase and other chemical–biological agents, which form the basis of this investigation, also have comparable dimensions. Our present and ongoing investig…
A large-area network of polyaniline nanowires was potentiostatically deposited on a stainless steel electrode at the potential of and characterized in electrolyte for a redox supercapacitor. The specific capacitance of and specific power of was obtained at the charge-discharge current density of . A long charge-discha…
The intent of this tutorial review is to cover the recent progress accomplished in iron and manganese porphyrin-catalyzed enantioselective epoxidation of terminal olefins. The literature is covered up to the beginning of 2005. In the first part of the manuscript, we will present the results obtained with simple cataly…
The design and formation of a linear assembly of gold nanorods using a biomolecular recognition system are described. Anti-mouse IgG was immobilized on the {111} end faces of gold nanorods through a thioctic acid containing a terminal carboxyl group. The biofunctionalized nanorods can be assembled with the desired len…
Diarylethenes undergo thermally irreversible and fatigue-resistant photochromic reactions not only in solution but also in the single-crystalline phase. This article describes recent development of the single-crystalline photochromism of diarylethene derivatives. We focused on the relationship between their crystal st…
This “Applications” article focuses on superquenching of the fluorescence of conjugated polyelectrolytes and related fluorescent polyelectrolytes and its applications to biosensing. Superquenching can occur for both aqueous solutions of these polymers as well as for various supported formats. For biosensing the suppor…