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Reactions of the Donor‐Stabilized Silylene Bis[N,N′‐diisopropyl‐benzamidinato(−)]silicon(II) with Brønsted Acids

24-10-2014 | Konstantin Junold, Katharina Sinner, Johannes A. Baus, Christian Burschka, Célia Fonseca Guerra, F. Matthias Bickelh ..., Chemistry - A European Journal, 2014

Abstract Reaction of the donor‐stabilized silylene 1 (which is three‐coordinate in the solid state and four‐coordinate in solution) with [HMCp(CO)3] (M=Mo, W; Cp=cyclopentadienyl) leads to the cationic five‐coordinate silicon(IV) complexes 2 and 3, respectively, and reaction of 1 with CH3COOH ...


Enhanced Ethylene Photodegradation Performance of g‐C3N4–Ag3PO4 Composites with Direct Z‐Scheme Configuration

24-10-2014 | Xuxing Chen , Xintang Huang, Zhiguo Yi, Chemistry - A European Journal, 2014

Abstract Photocatalytic oxidation of ethylene continues to be a challenge at the frontier of chemistry. In a previous report, a simple Ag3PO4 semiconductor material was shown to have strong photooxidative properties and efficiently oxidised water and decomposed organics in aqueous solution ...


Computational Modeling of Particle Fragmentation in the Heterogeneous Olefin Polymerization

24-10-2014 | Mohsen Najafi, Mahmoud Parvazinia, Macromolecular Theory and Simulations, 2014

The effect of fragmentation rate of a catalyst/polymer particle and diffusivity ratio inside cracks to fragments on reaction rate and molecular weight distribution are studied. A split algorithm is developed to reduce the computational cost and make it possible to simulate fragmentation on a ...


Corrosion behavior of new ternary zirconium alloys as alternative materials for biomedical applications

24-10-2014 | F. Rosalbino, D. Macciò, G. Scavino, A. Saccone, Materials and Corrosion, 2014

The in vitro corrosion behavior of four Zr‐based alloys (Zr97.5Nb1.5VM1.0; VM = valve metal: Ti, Mo, W, Ta; at%) to be used as implant materials has been assessed and compared with that of Grade 2 Ti, which is known to be a highly compatible metal standard. Corrosion resistance was investigated ...


The effect of surface treatment and topography on corrosion behavior of EN 1.4404 stainless steel

24-10-2014 | R. Lage, P. Møller, H. E. Fallesen, Materials and Corrosion, 2014

Corrosion properties of EN 1.4404 (316L) stainless steel with different applied surface treatment, were studied in NaCl solution using cyclic polarization. Observed properties were related to the specific topography of each surface by scanning electron microcopy and cross‐section analysis. ...


Switchable Amplification of Vibrational Circular Dichroism as a Probe of Local Chiral Structure

24-10-2014 | Sérgio R. Domingos, Hans J. Sanders, František Hartl, Wybren J. Buma, Sander Woutersen, Angewandte Chemie International Edition, 2014

Vibration circular dichroism (VCD) spectroscopy is used to determine the absolute configuration and conformation of chiral molecules in solution but low signal intensities and spectral congestion often prohibit the investigation of local structure. In their Communication (DOI: ...


Facile and Scalable Preparation of Pure and Dense DNA Origami Solutions

24-10-2014 | Evi Stahl, Thomas G. Martin, Florian Praetorius, Hendrik Dietz, Angewandte Chemie International Edition, 2014

Abstract DNA has become a prime material for assembling complex three‐dimensional objects that promise utility in various areas of application. However, achieving user‐defined goals with DNA objects has been hampered by the difficulty to prepare them at arbitrary concentrations and in ...


Thymol treatment of bacteria prior to matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometric analysis aids in identifying certain bacteria at the subspecies level

24-10-2014 | Ricky D. Holland, Jon G. Wilkes, Willie M. Cooper, Pierre Alusta, Anna Williams, Bruce Pearce, Michael Beaudoin, Dan ..., Rapid Communications in Mass Spectrometry, 2014

RATIONALE The identification of bacteria based on mass spectra produced by matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOFMS) has become routine since its introduction in 1996. The major drawback is that bacterial patterns produced by MALDI are dependent ...


Transfecting pDNA to E. coli DH5α using bovine serum albumin nanoparticles as a delivery vehicle

24-10-2014 | Jitendra Wagh, Kuldeep J. Patel, Parth Soni, Krutika Desai, Pratik Upadhyay, Hemant P. Soni, Luminescence, 2014

ABSTRACT We describe the formulation of bovine serum albumin nanoparticles (BSA‐NPs) by the coacervation method using surfactants. Plasmids (pUC18, pUC18egfp and pBBR1MCS‐2) isolated from E. coli were incorporated into the BSA matrix by incubating in albumin solution prior to formulation of ...


Enantiopure Laterally‐Functionalized Alleno–Acetylenic Macrocycles: Synthesis, Chiroptical Properties, and Self‐Assembly in Aqueous Media

24-10-2014 | Manolis D. Tzirakis, Mariza N. Alberti, Haim Weissman, Boris Rybtchinski, François Diederich, Chemistry - A European Journal, 2014

Abstract A family of shape‐persistent alleno–acetylenic macrocycles (SPAAMs), peripherally decorated with structurally diverse pendant groups, has been synthesized and characterized in enantiomerically pure form. Their electronic circular dichroism (ECD) spectra feature a strong chiroptical ...


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