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Synthesis and characterization of Nb2O5@C core-shell nanorods and Nb2O5nanorods by reacting Nb(OEt)5via RAPET (reaction under autogenic pressure at elevated temperatures) technique

George PP、Pol VG、Gedanken A2006-01-01Nanoscale Research Letters

AbstractThe reaction of pentaethoxy niobate, Nb(OEt)5, at elevated temperature (800 °C) under autogenic pressure provides a chemical route to niobium oxide nanorods coated with amorphous carbon. This synthetic approach yielded nanocrystalline particles of Nb2O5@C. As prepared Nb2O5@C core-shell nanorods is annealed un…

Site-controlled quantum dots fabricated using an atomic-force microscope assisted technique

Sakuma Y、Kawabe M、Okada Y 等 12 位作者2006-01-01Nanoscale Research Letters

AbstractAn atomic-force microscope assisted technique is developed to control the position and size of self-assembled semiconductor quantum dots (QDs). Presently, the site precision is as good as ± 1.5 nm and the size fluctuation is within ± 5% with the minimum controllable lateral diameter of 20 nm. With the ability…

Fabrication of nanostructure via self-assembly of nanowires within the AAO template

Brust Mathias、Wang Zhen2006-01-01Nanoscale Research Letters

AbstractThe novel nanostructures are fabricated by the spatial chemical modification of nanowires within the anodic aluminum oxide (AAO) template. To make the nanowires better dispersion in the aqueous solution, the copper is first deposited to fill the dendrite structure at the bottom of template. During the process…

Gold nanoparticle ensembles as heaters and actuators: melting and collective plasmon resonances

Lee Jaebeom、Kotov Nicholas、Govorov Alexander 等 6 位作者2006-01-01Nanoscale Research Letters

AbstractWe describe the peculiar conditions under which optically driven gold nanoparticles (NPs) can significantly increase temperature or even melt a surrounding matrix. The heating and melting processes occur under light illumination and involve the plasmon resonance. For the matrix, we consider water, ice, and pol…

Electrically tunable solid-state silicon nanopore ion filter

Gracheva Maria、Vidal Julien、Leburton Jean-Pierre2006-01-01Nanoscale Research Letters

AbstractWe show that a nanopore in a silicon membrane connected to a voltage source can be used as an electrically tunable ion filter. By applying a voltage between the heavily doped semiconductor and the electrolyte, it is possible to invert the ion population inside the nanopore and vary the conductance for both cat…

Transformation of β-Ni(OH)2to NiO nano-sheets via surface nanocrystalline zirconia coating: Shape and size retention

Cheng Ming-Yao、Hwang Bing-Joe2006-01-01Nanoscale Research Letters

AbstractShape and size of the synthesized NiO nano-sheets were retained during transformation of sheet-like β-Ni(OH)2to NiO at elevated temperatures via nano-sized zirconia coating on the surface of β-Ni(OH)2. The average grain size was 6.42 nm after 600 °C treatment and slightly increased to 10 nm after 1000 °C treat…

Computer-aided design of nano-filter construction using DNA self-assembly

Mohammadzadegan Reza、Mohabatkar Hassan2006-01-01Nanoscale Research Letters

AbstractComputer-aided design plays a fundamental role in both top-down and bottom-up nano-system fabrication. This paper presents a bottom-up nano-filter patterning process based on DNA self-assembly. In this study we designed a new method to construct fully designed nano-filters with the pores between 5 nm and 9 nm…

Novel high-Tg poly(amine-imide)s bearing pendent N-phenylcarbazole units: synthesis and photophysical, electrochemical and electrochromic properties

Guey‐Sheng Liou、Sheng‐Huei Hsiao、Hwei‐Wen Chen2006-01-01Journal of Materials Chemistry

A new carbazole-derived, triphenylamine-containing aromatic diamine monomer, 4,4′-diamino-4″-N-carbazolyltriphenylamine, was successfully synthesized by the caesium fluoride-mediated condensation of N-(4-aminophenyl)carbazole with 4-fluoronitrobenzene, followed by palladium-catalyzed hydrazine reduction. A series of n…

Organic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes ResearchConducting polymers and applications

Metamaterial Covers Over a Small Aperture

Andrea Alù、Filiberto Bilotti、Nader Engheta 等 9 位作者2006-01-01OpenAlex

Recently, there has been an increased interest in the problem of wave transmission through sub-wavelength apertures, following successful experimental demonstration by several groups for enhancing optical power transmission through nano-scale holes in metallic screens due to properly designed periodic corrugation. Oli…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchAdvanced Antenna and Metasurface Technologies

Synthesis and Electrochemical Characterization of Vanadium Oxide on Carbon Nanotube Film Substrate for Pseudocapacitor Applications

Il Hwan Kim、Jae‐Hong Kim、Byung Won Cho 等 5 位作者2006-01-01Journal of The Electrochemical Society

Synthesis and Electrochemical Characterization of Vanadium Oxide on Carbon Nanotube Film Substrate for Pseudocapacitor Applications, Kim, Il-Hwan, Kim, Jae-Hong, Cho, Byung-Won, Lee, Young-Ho, Kim, Kwang-Bum

Supercapacitor Materials and FabricationTransition Metal Oxide NanomaterialsAdvanced battery technologies research

Interfacial and Electrokinetic Characterization of IPA Solutions Related to Semiconductor Wafer Drying and Cleaning

Jin-Goo Park、Sangho Lee、Ju-Suk Ryu 等 6 位作者2006-01-01Journal of The Electrochemical Society

In this study, the interfacial and electrokinetic phenomena of mixtures of isopropyl alcohol (IPA) and deionized (DI) water in relation to semiconductor wafer drying is investigated. The dielectric constant of an IPA solution linearly decreased from 78 to 18 with the addition of IPA to DI water. The viscosity of IPA s…

Surface Modification and SuperhydrophobicityDielectric materials and actuatorsSynthesis and properties of polymers

Plasmon-polariton transport in metal-nanoparticle chains embedded in a gain medium

D. S. Citrin2006-01-01Optics Letters

Plasmon-polariton transport on chains of noncontacting noble-metal nanoparticles suffers from severe attenuation. A possible way of countering the attenuation by embedding the nanoparticle chain in an optical-gain medium is considered. It is found that short-wavelength surface polaritons can acquire exponential growth…

Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchNonlinear Optical Materials Studies

A ratiometric and non-enzymatic luminescence assay for uric acid: differential quenching of lanthanide excited states by anti-oxidants

Robert A. Poole、Filip Kielar、Siobhan L. Richardson 等 5 位作者2006-01-01Chemical Communications

The excited states of Tb and Eu complexes of a common macrocyclic ligand are quenched preferentially by electron transfer from the urate anion, allowing the creation of a new assay to measure uric acid in biological fluids.

Advanced MRI Techniques and ApplicationsMolecular Sensors and Ion DetectionLanthanide and Transition Metal Complexes

Femtosecond laser written channel waveguides in tellurite glass

P. Nandi、Gijo Jose、C. Jayakrishnan 等 9 位作者2006-01-01Optics Express

We have made and characterized a new, erbium-doped tellurite glass that has high glass transition temperature. Addition of phosphate is found to increase the phonon energy. The peak emission cross section is 6 x 10(-21) cm(2) at 1537 nm and the fluorescence lifetime of the (4)I(13/2)-(4)I(15/2) transition is 4.1 ms. W…

Glass properties and applicationsLaser Material Processing TechniquesSolid State Laser Technologies

Dendrimers in medicine and biotechnology. New molecular tools

Ulrik Boas、Jesper B. Christensen、Peter M. H. Heegaard2006-01-01OpenAlex

Chapter 1: Dendrimers: Design, synthesis and chemical properties 1.1: Introduction 1.2: Terms and nomenclature in dendrimer chemistry 1.3: Dendrimer design 1.4: Dendrimer synthesis 1.5: Physicochemical properties of dendrimers 1.6: Summary Chapter 2: Properties of dendrimers in biological systems 2.1: Significance of…

Dendrimers and Hyperbranched Polymers

Diameter-selective dispersion of single-walled carbon nanotubes using a water-soluble, biocompatible polymer

Hui Yang、Shiunchin C. Wang、Philippe Mercier 等 4 位作者2006-01-01Chemical Communications

One-step diameter-selective dispersion of HiPco single-walled carbon nanotubes has been accomplished through noncovalent complexation of the nanotubes with a water-soluble, biocompatible polymer chitosan at room temperature.

Carbon Nanotubes in CompositesConducting polymers and applicationsNanotechnology research and applications

Biosensing using silver nanoparticles and surface enhanced resonance Raman scattering

Duncan Graham、Karen Faulds、W. Ewen Smith2006-01-01Chemical Communications

Silver nanoparticles can be used to provide excellent surface enhanced resonance Raman scattering. Control of the surface chemistry and the use of appropriate protocols enables effective sensing of biomolecules.

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesBiosensors and Analytical Detection

Effects of Ingestion of Collagen Peptide on Collagen Fibrils and Glycosaminoglycans in the Dermis

Naoya Matsuda、Yoh‐ichi Koyama、Yoshinao Z. Hosaka 等 8 位作者2006-01-01Journal of Nutritional Science and Vitaminology

In order to investigate the effects of collagen peptide ingestion on fibroblasts and the extracellular matrix in the dermis, collagen peptide was administered orally to pigs at 0.2 g/kg body weight/d for 62 d, and its effects were compared with those of lactalbumin and water controls. Fibroblast density, and diameter…

Proteoglycans and glycosaminoglycans researchTextile materials and evaluationsCollagen: Extraction and Characterization

Analysis of multiple reflection effects in reflective measurements of electro-optic coefficients of poled polymers in multilayer structures

Dong Hun Park、Chi H. Lee、Warren N. Herman2006-01-01Optics Express

We present new closed-form expressions for analysis of Teng-Man measurements of the electro-optic coefficients of poled polymer thin films. These expressions account for multiple reflection effects using a rigorous analysis of the multilayered structure for varying angles of incidence. The analysis based on plane wave…

Liquid Crystal Research AdvancementsNonlinear Optical Materials ResearchAnalytical Chemistry and Sensors

Controlled pore structure modification of diatoms by atomic layer deposition of TiO2

Dušan Lošić、Gerry Triani、Peter J. Evans 等 6 位作者2006-01-01Journal of Materials Chemistry

Diatoms produce diverse three-dimensional, regular silica structures with nanometer to micrometer dimensions and hold considerable promise for biological or biomimetic fabrication of nanostructured materials and devices. The unique hierarchical porous structure of diatom frustules is in particular attractive for membr…

Electrochemical sensors and biosensorsAnalytical Chemistry and SensorsDiatoms and Algae Research