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The Influence of Microbacterium hominis and Bacillus licheniformis Extracellular Polymers on Silver and Iron Oxide Nanoparticles Production; Green Biosynthesis and Mechanism of Bacterial Nano Production

Nasim Gholampoor Giti Emtiazi2015-01-01Journal of Nanomaterials & Molecular Nanotechnology

The Influence of Microbacterium hominis and Bacillus licheniformis Extracellular Polymers on Silver and Iron Oxide Nanoparticles Production; Green Biosynthesis and Mechanism of Bacterial Nano Production Due to the abundant applications of metal nanoparticles on different area, researchers are always looking for fast,…

Nanoparticles: synthesis and applicationsGraphene and Nanomaterials ApplicationsNanotechnology research and applications

Optical and structural properties of PbS:Bi$^{3+}$ nanocrystals

R. Gutiérrez Pérez、O. Portillo Moreno、L. Chaltel Lima 等 6 位作者2015-01-01Revista Mexicana de Física

We report here the growth of nanocrystalline PbS thin films by chemical bath and the effects of doping on the structural and electronics properties as a function of Bi$^{3+}$ concentration. Doping of such PbS films with Bi$^{3+}$ produces considerable optical and structural changes that have an effect on the material…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Actively tunable metamaterial resonators based on colossal magnetoresistance in the infrared regime

Cheng Wang Cheng Wang、Changchun Yan Changchun Yan、Jiebing Tian Jiebing Tian 等 7 位作者2015-01-01Chinese Optics Letters

We present a tunable resonator consisting of a colossal magnetoresistant cross in which a smaller gold cross is embedded. Simulations show the resonance frequencies of the resonator move into the infrared regime when there is a change in the intensity of the external magnetic field applied to the resonator. The source…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

The Effects of Aluminium Hydroxide and Magnesium Hydroxide on the Mechanical Properties of Thermoplastic Polyurethane Materials

Erkin Akdoğan、Ali Rıza Tarakcılar、Muzaffer Topçu 等 4 位作者2015-01-01Pamukkale University Journal of Engineering Sciences

Termoplastik poliüretan malzemeler, üstün fiziksel ve kimyasal özellikleri sebebiyle, otomotiv, giyim, elektrik-elektronik, tıp, inşaat, makine sektörlerinde geniş bir kullanım alanına sahiptir. Termoplastik poliüretan malzemelerin, yanmaya ve yüksek sıcaklığa karşı dirençleri düşüktür. Bu özelliklerinin iyileştirileb…

Flame retardant materials and propertiesSilicone and Siloxane ChemistryMaterial Properties and Applications

Two new species of Gomphonema (Bacillariophyceae) from Doon Valley, Uttarakhand, India

Balasubramanian Karthick、Rachna Nautiyal、Kociolek, Patrick J 等 4 位作者2015-01-01NOT FOUND REPOSITORY (Indian Institute of Science Bangalore)

This paper describes two new Gomphonema species from the lesser Himalayas, India, with their valve morphology using light and scanning electron microscopy. The two species, Gomphonema juettnerii sp. nov. and G. doonensis sp. nov., were found in Nalota stream in Doon Valley of Uttarakhand State. Main features of G. jue…

Marine and coastal ecosystemsAquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae Research

A Comparative Study of Austenitic Structure in NiTi and Fe Based Shape Memory Alloys after Severe Plastic Deformation

Carmela Gurău、Gheorghe Gurău、Leandru-Gheorghe Bujoreanu 等 4 位作者2015-01-01Materials Today Proceedings

The effect of high speed high pressure torsion (HS-HPT) was studied in NiTi and FeMnSiCr SMAs, by comparison. Severe plastic deformation was performed in austenite state for both types of alloys. The alloys subjected to HS-HPT, reduced their grain size due to microstructure fragmentation by compression and torsion. Th…

Shape Memory Alloy TransformationsHigh Entropy Alloys StudiesTitanium Alloys Microstructure and Properties

Synthesis of graphene oxide–silver nanocomposite with photochemically grown silver nanoparticles to use as a channel material in thin film field effect transistors

Kalyan Jyoti Sarkar、Kalyan Jyoti Sarkar、P. Banerji2015-01-01RSC Advances

The transport of charge carriers in a graphene oxide–silver nanoparticle composite is found to be controlled by nanoparticle dose.

Graphene research and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsLaser-Ablation Synthesis of Nanoparticles

Influence of Cryogenic Treatment on Microstructure and Properties Improvement of Die Steel

Shangtan Liu、Xiaochun Wu、Lei Shi 等 5 位作者2015-01-01Journal of Materials Science and Chemical Engineering

Cryogenic treatment has been increasingly applied to enhance the hardness, antiwear ability and fatigue performance of die steel. On the basis of reading a large number of research papers and references across the world, the author makes a detailed analysis and brief summary of the influence of cryogenic treatment on…

Microstructure and Mechanical Properties of SteelsAdvanced materials and compositesMetal Alloys Wear and Properties

Green Synthesis of Gold Nanoparticles Using Cumin Seeds and Gum Arabic: Studying Their Photothermal Efficiency

Thanaa I. Shalaby、Rasha Said Shams El-Dine、Suzan A. Abd El-Gaber2015-01-01OpenAlex

Biocompatible gold nanoparticles have gained considerable attention in recent years for potential applications in nanomedicine. This work is aimed at exploring the green synthesis of gold nanoparticles using cumin seeds with gum Arabic as a simple, non-toxic, eco-friendly 'green material'. The growth of nanoparticles…

Nanoparticles: synthesis and applicationsEssential Oils and Antimicrobial ActivityLaser-Ablation Synthesis of Nanoparticles

Preparation of catalytic films of the Au nanoparticle–carbon composite tubular arrays

Wei Gong、Lei Su、Xueji Zhang2015-01-01Chemical Communications

Catalytic films comprising the arrayed mesoporous and big-inner-diameter carbon nanotubes embedded with high density Au nanoparticles were prepared through a template-directed carbonization route.

Graphene research and applicationsCatalytic Processes in Materials ScienceNanomaterials for catalytic reactions

Nanocrystallization of Vanadium Borophosphate Glass for Improving the Electrical and Catalytic Properties

Su-Yeon Choi、Bong-Ki Ryu2015-01-01Journal of Nanomaterials

75V2O5‐10P2O5‐15B2O3 ternary‐system glasses were prepared and nanocrystallized to examine the catalytic effect and the variations in their structural and electrical properties. These glasses were annealed in a graphite mold above the glass transition temperature for 2 h and heat‐treated at the crystallization temperat…

Glass properties and applicationsTransition Metal Oxide NanomaterialsCatalysis and Oxidation Reactions

Thermoelectricity in polymer composites due to fluctuation-induced tunneling

Troy Stedman、Kaya Wei、George S. Nolas 等 4 位作者2015-01-01Physical Chemistry Chemical Physics

Transport in heavily-doped polymer composites, characterized by localized charge regions, is examined in light of the recent interest in polymers for thermoelectric applications. The developed fundamental transport theory describes carrier tunneling between charged localizations by taking into account thermally induce…

Organic Electronics and PhotovoltaicsAdvanced Thermoelectric Materials and DevicesConducting polymers and applications

Gold nanosponges (AuNS): a versatile nanostructure for surface-enhanced Raman spectroscopic detection of small molecules and biomolecules

Gregory Q. Wallace、Mariachiara S. Zuin、Mohammadali Tabatabaei 等 6 位作者2015-01-01The Analyst

Prepared by simple pour and mix chemistry, gold nanosponges (AuNS) are versatile structures for surface-enhanced Raman spectroscopy (SERS). An investigation into the enhancement is performed by relating the nanostructure's morphology to the SERS signal. The potential of the AuNS in SERS-based molecular and biomolecula…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesNanocluster Synthesis and Applications

Photoassisted Electrodeposition of a Copper(I) Oxide Film

Seunghun Kim、Yongkuk Kim、Jaegoo Jung 等 4 位作者2015-01-01MATERIALS TRANSACTIONS

Photoassisted electrodeposition of a cuprous oxide (Cu2O) thin film was studied to find the optimum conditions lowering the deposition temperature. Cu2O films were electrochemically deposited on FTO by cycling the electrode potential between 0.0 V and −0.8 V (Ag|AgCl), in an aqueous solution. A simple deposition cell…

ZnO doping and propertiesCopper-based nanomaterials and applicationsElectronic and Structural Properties of Oxides

Disordered surface vibrations in jammed sphere packings

Daniel M. Sussman、Carl P. Goodrich、Andrea J. Liu 等 4 位作者2015-01-01Soft Matter

We study the vibrational properties near a free surface of disordered spring networks derived from jammed sphere packings. In bulk systems, without surfaces, it is well understood that such systems have a plateau in the density of vibrational modes extending down to a frequency scale ω*. This frequency is controlled b…

Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesAcoustic Wave Phenomena Research

Nanoscale surface conductivity analysis of plasma sputtered carbon thin films

Amjed Javid、Manish Kumar、Jeon G. Han2015-01-01RSC Advances

The present work demonstrates the phenomenon of nanoscale surface conductivity variation in various plasma conditions of sputtering induced carbon thin films.

Carbon Nanotubes in CompositesMetal and Thin Film MechanicsDiamond and Carbon-based Materials Research

Enhancement of electron-donating character in alkylated monopyrrolo-tetrathiafulvalene derivatives

Kai R. Korsching、Hannes Schäfer、Josefine Schönborn 等 6 位作者2015-01-01RSC Advances

Bis-alkyl-substituted monopyrrolo-tetrathiafulvalene (MPTTF) derivatives display stronger affinity to electron-deficient molecular guests in comparison with their non-substituted MPTTF analogues.

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryOrganic and Molecular Conductors Research

Conductivity in sodium-yttrium-silicate and sodium-yttrium-phosphate glass

Г. В. Нечаев、С. Г. Власова、О. Г. Резницких2015-01-01Glass Physics and Chemistry

Sodium-Yttrium-Silicate glass composed of 35Na 2 O · 5.3Y 2 O 3 · 59.7SiO 2 and 37.9Na 2 O · 5.7Y 2 O 3 · 56.4SiO 2 and silicon—phosphorus glass composed of 37.9Na 2 O · 5.7Y 2 O 3 · 51.4SiO 2 · 5P 2 O 5 , which are similar in composition, have been synthesized. Thermal behavior of the above glass has been studied by…

Glass properties and applicationsRecycling and utilization of industrial and municipal waste in materials productionPigment Synthesis and Properties

Compositions and structures of oligosiloxanes forming during the partial acidolysis of PhSi(OMe)3

А. Г. Иванов、В. М. Копылов、В. В. Киреев 等 6 位作者2015-01-01Polymer Science Series B

With the use of MALDI mass spectrometry and 29Si NMR spectroscopy, the molecular-mass compositions of oligomers prepared via partial acidolysis of PhSi(OMe)3 by acetic acid have been studied. Depending on the molar ratio of mPhSi(OMe)3 and nCH3COOH (m/n), a wide variety of oligophenyl-methoxysiloxanes with average com…

Corrosion Behavior and InhibitionMarine Biology and Environmental ChemistrySilicone and Siloxane Chemistry