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Vibration analysis of axially moving carbon nanotube–reinforced composite plate under initial tension

26-Jun-2015 | Ali Ghorbanpour Arani, Elham Haghparast, Polymer Composites, 2015

In the present research, vibration and instability of axially moving carbon nanotube–reinforced composite (CNTRC) plate under initial tension is investigated. Single‐walled carbon nanotubes (SWCNTs) are selected as a reinforcement inside polymethyl methacrylate (PMMA) matrix. Higher order shear ...

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[Report] A 12 Å carotenoid translocation in a photoswitch associated with cyanobacterial photoprotection

26-Jun-2015 | Ryan L. Leverenz; Markus Sutter; Adjélé Wilson; Sayan Gupta; Adrien Thurotte; Céline Bourcier de Carbon; Christopher ..., Science , 2015

Pigment-protein and pigment-pigment interactions are of fundamental importance to the light-harvesting and photoprotective functions essential to oxygenic photosynthesis. The orange carotenoid protein (OCP) functions as both a sensor of light and effector of photoprotective energy dissipation in ...

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Importance of Internal Porosity for Glucan Adsorption in Mesoporous Carbon Materials

26-Jun-2015 | Po-Wen Chung; Alexandre Charmot; Timothy Click; Yuchun Lin; YounJue Bae; Jhih-Wei Chu; Alexander Katz, Langmuir, 2015

To better understand the adsorption of long-chain poly(1 → 4)-β-d-glucans on carbon surfaces as well as interactions responsible for this adsorption, we use a comparative study involving mesoporous carbon–silica composite materials that have been etched to varying degrees and all-atom molecular ...

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Electrochemical Determination of Chlorpyrifos on a Nano-TiO2/Cellulose Acetate Composite Modified Glassy Carbon Electrode

26-Jun-2015 | Ammasai Kumaravel; Maruthai Chandrasekaran, Journal of Agricultural and Food Chemistry, 2015

A rapid and simple method of determination of chlorpyrifos is important in environmental monitoring and quality control. Electrochemical methods for the determination of pesticides are fast, sensitive, reproducible, and cost-effective. The key factor in electrochemical methods is the choice of ...

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Corrosion Protection Efficiency of Bilayer Porphyrin‐Polyaniline Film Deposited on Carbon Steel

25-Jun-2015 | Iuliana Popa, Eugenia Fagadar‐Cosma, Bogdan‐Ovidiu Taranu, Mihaela Birdeanu, Gheorghe Fagadar‐Cosma, Ioan Taranu, Macromolecular Symposia, 2015

Summary Polyaniline (PANI) based composites and multilayers as well as porphyrin derivatives have been previously reported as efficient anti‐corrosion coatings. In our studies, 5,10,15,20‐tetra(4‐methylphenyl)‐21H,23H‐porphyrin (TMP) was adsorbed on carbon steel surface before PANI ...

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First Evidence of Rh Nano-Hydride Formation at Low Pressure

24-Jun-2015 | Claudia Zlotea; Yassine Oumellal; Mariem Msakni; Julie Bourgon; Stéphane Bastide; Christine Cachet-Vivier; Michel La ..., Nano Letters, 2015

Rh-based nanoparticles supported on a porous carbon host were prepared with tunable average sizes ranging from 1.3 to 3.0 nm. Depending on the vacuum or hydrogen environment during thermal treatment, either Rh metal or hydride is formed at nanoscale, respectively. In contrast to bulk Rh that can ...

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Chemical Bath Deposition of Aluminum Oxide Buffer on Curved Surfaces for Growing Aligned Carbon Nanotube Arrays

22-Jun-2015 | Haitao Wang; Chongzheng Na, Langmuir, 2015

Direct growth of vertically aligned carbon nanotube (CNT) arrays on substrates requires the deposition of an aluminum oxide buffer (AOB) layer to prevent the diffusion and coalescence of catalyst nanoparticles. Although AOB layers can be readily created on flat substrates using a variety of ...

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Carbon‐Supported Copper Nanomaterials: Recyclable Catalysts for Huisgen [3+2] Cycloaddition Reactions

18-Jun-2015 | Ali Shaygan Nia, Sravendra Rana, Diana Döhler, Franz Jirsa, Annette Meister, Liberata Guadagno, Eik Koslowski, Micha ..., Chemistry - A European Journal, 2015

Abstract Highly disperse copper nanoparticles immobilized on carbon nanomaterials (CNMs; graphene/carbon nanotubes) were prepared and used as a recyclable and reusable catalyst to achieve CuI‐catalyzed [3+2] cycloaddition click chemistry. Carbon nanomaterials with immobilized N‐heterocyclic ...

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Production and characterization of absorbent heat from the bark of residual Brazil nut bark (Bertholletia Excelsa l.)

16-Jun-2015 | Melo, Selma S; Diniz, Joel EM; Guimarães, Jonilson H; Costa, Josivan S; Brasil, Davi SB; de Morais, Sílvia SS; Brito ..., Chemistry Central Journal , 2015

Background: The increasing efforts to reduce the environmental impact on the Amazon’s natural resources are focusing on watercourses that pass through effluents with high concentrations of heavy metals. The adsorption by absorbent is one of the methods used to remove metallic ions. In this ...

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Method To Determine Protein Concentration in the Protein–Nanoparticle Conjugates Aqueous Solution Using Circular Dichroism Spectroscopy

16-Jun-2015 | Shanghao Li; Zhili Peng; Roger M. Leblanc, Analytical Chemistry, 2015

Considerable efforts have been made to synthesize and characterize protein–nanoparticle conjugates (protein–NPs) for their promising applications in bionanotechnology. However, protein concentration determination in the protein–NPs has so far not been reported. In this Letter, we present a simple ...

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