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Inclusion of Two Push–Pull N-Methylpyridinium Salts in Anionic Surfactant Solutions: A Comprehensive Photophysical Investigation

22-May-2015 | Alessio Cesaretti; Benedetta Carlotti; Giuseppe Consiglio; Tiziana Del Giacco; Anna Spalletti; Fausto Elisei, Journal of Physical Chemistry B, 2015

Two N-methylpyridinium salts with push–pull properties have been investigated in the aqueous solution of anionic micelles of sodium dodecyl sulfate (SDS) and potassium p-(octyloxy)benzenesulfonate (pOoBSK) surfactants. These molecules are known to be extremely sensitive to the local environment, ...

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Anionic conjugated polymer as a multi-action sensor for the sensitive detection of Cu2+, PPi, real-time ALP assaying and cell imaging

21-May-2015 | Akhtar Hussain Malik; Sameer Hussain; Arvin Sain Tanwar; Sourav Layek; Vishal Trivedi; Parameswar K Iyer, Analyst, 2015

A Cu2+ ensemble polyfluorene derivative, poly[5,5'-(((9H-fluorene-9,9-diyl)bis(hexane-6,1-diyl))bis(oxy))diisophthalate] sodium salt (PFT) displays unprecedented selectivity for PPi (LOD=2.26 ppb) in aqueous solution as well as in random urine samples at physiological pH viz-a-viz monitoring ALP ...

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Preparation and characterization of polyelectrolyte/silver multilayer films on PET substrates and its antibacterial property

15-May-2015 | Deshan Cheng, Xia Lin, Lingling Fan, Guangming Cai, Jihong Wu, Weidong Yu, Polymer Composites, 2015

Silver nanoparticles (AgNPs) were synthesized by a chemical reduction method that reduced silver nitrate with sodium borohydride. Hydrolysis of poly(ethylene terephthalate) (PET) in concentrated alkaline solution produced a carboxyl‐enriched surface. The ultrathin multilayer films were ...

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Carbene Supported Dimer of Heavier Ketenimine Analogue with P and Si Atoms

12-May-2015 | Sudipta Roy; Birger Dittrich; Totan Mondal; Debasis Koley; A. Claudia Stückl; Brigitte Schwederski; Wolfgang Kaim; M ..., Journal of the American Chemical Society, 2015

A cyclic alkyl(amino) carbene (cAAC) stabilized dimer [(cAAC)Si(P-Tip)]2 (2) (Tip = 2,4,6-triisopropylphenyl) is reported. 2 can be considered as a dimer of the heavier ketenimine (R2C═C═N–R) analogue. The dark-red rod-shaped crystals of 2 were synthesized by reduction of the precursor, ...

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Synthesis, bulk growth, polarizability and nonlinear optical properties of γ‐glycine single crystals

11-May-2015 | K. Renuka Devi, K. Srinivasan, Crystal Research and Technology, 2015

The role of sodium acetate, sodium nitrate, sodium hydroxide and malonic acid as additives in assisting the nucleation of γ‐polymorph from solution has been investigated. For the first time large dimensional bulk single crystals of γ‐glycine have been grown at the optimized concentration of the ...

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Synthesis and Biodistribution Studies of 3H- and 64Cu-Labeled Dendritic Polyglycerol and Dendritic Polyglycerol Sulfate

11-May-2015 | Kritee Pant; Dominic Gröger; Ralf Bergmann; Jens Pietzsch; Jörg Steinbach; Bim Graham; Leone Spiccia; Fannely Bertho ..., Bioconjugate Chemistry, 2015

Dendritic polyglycerol sulfate (dPGS) is a biocompatible, bioactive polymer which exhibits anti-inflammatory activity in vivo and thus represents a promising candidate for therapeutic and diagnostic applications. To investigate the in vivo pharmacokinetics in detail, dPGS with a molecular weight ...

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Impact of the Quality of Bowel Cleansing on the Efficacy of Colonic Cancer Screening: A Prospective, Randomized, Blinded Study

07-May-2015 | Jürgen Pohl et al., PLoS ONE, 2015

by Jürgen Pohl, Marc Halphen, Hans Rudolf Kloess, Wolfgang Fischbach Objectives Efficacy of two low volume bowel cleansing preparations, polyethylene glycol plus ascorbate (PEG+Asc) and sodium picosulfate/magnesium citrate (NaPic/MgCit), were compared for polyp and adenoma detection rate (PDR ...

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Accurate Modeling of Ionic Surfactants at High Concentration

07-May-2015 | Garrett B. Goh; David M. Eike; Bruce P. Murch; Charles L. Brooks, III, Journal of Physical Chemistry B, 2015

Molecular dynamics (MD) simulation is a useful tool for simulating formulations of surfactant mixtures from first-principles, which can be used to predict surfactant morphology and other industrially relevant thermodynamic properties. However, the surfactant structure is sensitive to the ...

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Application of Oxalic Acid to Preserve the Overall Quality of Rocket and Baby Spinach Leaves during Storage

29-Apr-2015 | Maria Cefola, Bernardo Pace, Journal of Food Processing and Preservation, 2015

Abstract The effect of postharvest treatment with oxalic acid (OA) on the overall quality of two leafy vegetables, rocket and baby spinach, was investigated for the first time. The leaves of rocket and baby spinach were dipped in 1 mM OA solution for 1 min and then stored for 6 days at 8C. As ...

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Radical Polymerization of Alkali Acrylates in Aqueous Solution

29-Apr-2015 | P. Drawe, M. Buback, I. Lacík, Macromolecular Chemistry and Physics, 2015

Monomer conversion versus time profiles for the radical polymerization of ionized acrylic acid (AA), 0.6 to 0.8 mol L−1 in aqueous solution, are measured at 50 °C via inline near‐infrared spectroscopy mostly on fully ionized AA, i.e., of alkali acrylates. Ionization reduces polymerization rate ...

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