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Structural characterization of aqueous solution poly(oligo(ethylene oxide) monomethyl methacrylate)-grafted silica nanoparticles

02-Feb-2016 | Arnaldo T. Lorenzo; Ramakrishna Ponnapati; Tirtha Chatterjee; Ramanan Krishnamoorti, Faraday Discussions, 2016

The structure of aqueous dispersions of poly(oligo(ethylene oxide) monomethyl methacrylate)-grafted silica nanoparticles was characterized using contrast variation small-angle neutron scattering studies. Modeling the low hybrid concentration dispersion scattering data using a fuzzy sphere and a ...


Highly Sensitive Detection of Arsenite Based on Its Affinity toward Ruthenium Nanoparticles Decorated on Glassy Carbon Electrode

29-Jan-2016 | Ruma Gupta; Jayashree S. Gamare; Ashok K. Pandey; Deepak Tyagi; Jayshree V. Kamat, Analytical Chemistry, 2016

Metallic ruthenium nanoparticles (Ru NPs) are formed on the glassy carbon electrode (GC) at electrodeposition potential of −0.75 V, as observed from X-ray photoelectron spectroscopy. Thus formed Ru NPs have the arsenite selective surface and conducting core that is ideally suited for designing a ...


The adsorption performance of Vat Scarlet R on natural superfine needle down particles

28-Jan-2016 | Fengxiang Chen, Xin Liu, Keshuai Liu, Xinfang Xiao, Chunhua Zhang, Fan Cheng, Liangjun Xia, Yinshan Zhou, Binghai Do ..., Coloration Technology, 2016

Natural superfine needle down particles were successfully prepared on a self‐made machine and applied to remove hazardous dye Vat Scarlet R from aqueous solution. The adsorbent was characterised by scanning electron microscopy and Fourier transform infrared spectroscopy. The effects of contact ...


Homogeneous and Heterogeneous (Fex, Cr1–x)(OH)3 Precipitation: Implications for Cr Sequestration

28-Jan-2016 | Chong Dai; Xiaobing Zuo; Bo Cao; Yandi Hu, Environmental Science & Technology, 2016

The formation of (Fe, Cr)(OH)3 nanoparticles determines the fate of aqueous Cr in many aquatic environments. Using small-angle X-ray scattering, precipitation rates of (Fe, Cr)(OH)3 nanoparticles in solution and on quartz were quantified from 0.1 mM Fe(III) solutions containing 0–0.25 mM Cr(III) ...


Zn Isotope Fractionation during Sorption onto Kaolinite

28-Jan-2016 | Damien Guinoiseau; Alexandre Gélabert; Julien Moureau; Pascale Louvat; Marc F. Benedetti, Environmental Science & Technology, 2016

In this study, we quantify zinc isotope fractionation during its sorption onto kaolinite, by performing experiments under various pH, ionic strength, and total Zn concentrations. A systematic enrichment in heavy Zn isotopes on the surface of kaolinite was measured, with Δ66Znadsorbed-solution ...


Separation of Succinic Acid from Aqueous Solution by Macroporous Resin Adsorption

28-Jan-2016 | Zhu Sheng; Bo Tingting; Chen Xuanying; Wang Xiangxiang; Long Mengdi, Journal of Chemical & Engineering Data, 2016

Attempts were made to recover succinic acid from aqueous solution by macroporous resin adsorption. The adsorption properties of succinic acid on seven different resins (HPD-300, HPD-400, HPD-450, HPD-500, HPD-826, AB-8, and NKA-9) were compared systematically. According to the adsorption ...


A Ruthenium Complex/Carbon Nanotube Based Electrode as the First Electrochemical Sensor for Simultaneous Sensing of D‐Penicillamine, 6‐Thioguanine and Catecholamines

27-Jan-2016 | Mohammad Mazloum‐Ardakani, Mohammad Ali Sheikh‐Mohseni, Masoud Salavati‐Niasari, Electroanalysis, 2016

Abstract The electrochemical behavior of a synthesized Ru complex (RuL) was investigated at multiwalled carbon nanotubes modified carbon paste electrode. Some special properties of the electrochemical response of this modified electrode are suitable charge transfer rate, repeatability and ...


The thermal, optical, flame retardant, and morphological consequence of embedding diacid‐capped ZnO into the recycled PET matrix

27-Jan-2016 | Shadpour Mallakpour, Mashal Javadpour, Journal of Applied Polymer Science, 2016

ABSTRACT We extended our work to a fast and facile nanocomposites (NCs) manufacturing by incorporation of ZnO nanoparticles (NPs) on to a recycled poly(ethylene terephthalate) PET as a polymer matrix prepared by a dissolution/reprecipitation method. The surface of ZnO NPs was functionalized ...


Structural and Magnetic Properties of 57Fe‐Doped TiO2 and 57Fe/Sn‐Codoped TiO2 Prepared by a Soft‐Chemical Process

27-Jan-2016 | Yanjie Wang, Kiyoshi Nomura, Xin Liu, Alexandre I. Rykov, Changzi Jin, Tao Liu, Junhu Wang, European Journal of Inorganic Chemistry, 2016

Abstract A series of 57Fe‐doped TiO2 and 57Fe/Sn‐codoped TiO2 materials were prepared by a soft‐chemical solution process with various 57Fe concentrations from 0.1 to 1.0 at.‐% and a fixed Sn concentration of 2.0 at.‐%. In this process, an aqueous H2O2 solution reacts with iron and titanium or ...


Observing and Controlling the Folding Pathway of DNA Origami at the Nanoscale

27-Jan-2016 | Jonathan Lee Tin Wah; Christophe David; Sergii Rudiuk; Damien Baigl; André Estevez-Torres, ACS Nano, 2016

DNA origami is a powerful method to fold DNA into rationally designed nanostructures that holds great promise for bionanotechnology. However, the folding mechanism has yet to be fully resolved, principally due to a lack of data with single molecule resolution. To address this issue, we have ...


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