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507,654 Newest Publications about the topic sulfur

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Lanthanoid “Bottlebrush” Clusters: Remarkably Elongated Metal–Oxo Core Structures with Controllable Lengths

14-10-2014 | Daniel D’Alessio; Alexandre N. Sobolev; Brian W. Skelton; Rebecca O. Fuller; Robert C. Woodward; Nigel A. Lengkeek; ..., Journal of the American Chemical Society, 2014

Large metal–oxo clusters consistently assume spherical or regular polyhedral morphologies rather than high-aspect-ratio structures. Access to elongated core structures has now been achieved by the reaction of lanthanoid salts with a tetrazole-functionalized calixarene in the presence of a simple ...

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IJMS, Vol. 15, Pages 18508-18524: Effects of the Olive-Derived Polyphenol Oleuropein on Human Health

14-10-2014 | Barbaro, Barbara ; Toietta, Gabriele ; Maggio, Roberta ; Arciello, Mario ; Tarocchi, Mirko ; Galli, Andrea ; Balsano ..., International Journal of Molecular Sciences, 2014

The use of the products derived from the olive tree on human health dates back centuries. In several civilizations, the olive tree had and still has a very strong cultural and religious symbolism. Notably, the official seal and emblem of the World Health Organization features the rod of ...

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Single-Molecule FRET Studies of HIV TAR–DNA Hairpin Unfolding Dynamics

14-10-2014 | Jixin Chen; Nitesh K. Poddar; Lawrence J. Tauzin; David Cooper; Anatoly B. Kolomeisky; Christy F. Landes, Journal of Physical Chemistry B, 2014

We directly measure the dynamics of the HIV trans-activation response (TAR)–DNA hairpin with multiple loops using single-molecule Förster resonance energy transfer (smFRET) methods. Multiple FRET states are identified that correspond to intermediate melting states of the hairpin. The stability of ...

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Resolving Parity and Order of Fabry–Pérot Modes in Semiconductor Nanostructure Waveguides and Lasers: Young’s Interference Experiment Revisited

14-10-2014 | Liaoxin Sun; Ming-Liang Ren; Wenjing Liu; Ritesh Agarwal, Nano Letters, 2014

Semiconductor nanostructures such as nanowires and nanoribbons functioning as Fabry–Pérot (F-P)-type optical cavities and nanolasers have attracted great interest not only for their potential use in nanophotonic systems but also to understand the physics of light–matter interactions at the ...

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Peptides Displayed as High Density Brush Polymers Resist Proteolysis and Retain Bioactivity

14-10-2014 | Angela P. Blum; Jacquelin K. Kammeyer; Jian Yin; Dustin T. Crystal; Anthony M. Rush; Michael K. Gilson; Nathan C. Gi ..., Journal of the American Chemical Society, 2014

We describe a strategy for rendering peptides resistant to proteolysis by formulating them as high-density brush polymers. The utility of this approach is demonstrated by polymerizing well-established cell-penetrating peptides (CPPs) and showing that the resulting polymers are not only resistant ...

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Molecules, Vol. 19, Pages 16573-16587: Effects of Croton rhamnifolioides Essential Oil on Aedes aegypti Oviposition, Larval Toxicity and Trypsin Activity

14-10-2014 | Santos, Geanne K. N.; Dutra, Kamilla A.; Lira, Camila S.; Lima, Bheatriz N.; Napoleão, Thiago H.; Paiva, Patrícia M. ..., Molecules, 2014

Although numerous reports are available concerning the larvicidal potential of essential oils, very few investigations have focused on their mechanisms of action. In the present study, we have investigated the chemical composition of the leaf oil of Croton rhamnifolioides during storage and its ...

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Energies, Vol. 7, Pages 6558-6570: Does a Change in Price of Fuel Affect GDP Growth? An Examination of the U.S. Data from 1950–2013

14-10-2014 | Aucott, Michael ; Hall, Charles, Energies, 2014

We examined data on fuel consumption and costs for the years 1950 through 2013, along with economic and population data, to determine the percent of U.S. gross domestic product (GDP) spent each year on fuels, including fossil fuels and nuclear ore, and the growth of the economy. We found that ...

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Preparation of Water-Free PEDOT Dispersions in the Presence of Reactive Polyisoprene Stabilizers

14-10-2014 | Abdulkarim Charba; Muhammad Mumtaz; Cyril Brochon; Henri Cramail; Georges Hadziioannou; Eric Cloutet, Langmuir, 2014

Poly(3,4-ethylenedioxythiophene) nanoparticles with narrow size distribution were prepared in organic dispersant media in the presence of both iron(III) dodecylbenzenesulfonate {Fe(DBS)3}—acting as both an oxidant and a stabilizer—and ω-functionalized polyisoprenes (ω-R-PI) as costabilizers. The ...

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Photosensitization by Imatinib. A Photochemical and Photobiological Study of the Drug and Its Substructures

14-10-2014 | Giacomo Nardi; Virginie Lhiaubet-Vallet; Miguel A. Miranda, Chemical Research in Toxicology, 2014

Imatinib (IMT) is a promising tyrosine kinase inhibitor used in the treatment of some types of human cancer. It constitutes a successful example of rational drug design based on the optimization of the chemical structure to reach an improved pharmacological activity. Cutaneous reactions, such as ...

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Surface Chemistry of CuInS2 Colloidal Nanocrystals, Tight Binding of L-Type Ligands

14-10-2014 | Ruben Dierick; Freya Van den Broeck; Kim De Nolf; Qiang Zhao; André Vantomme; José C. Martins; Zeger Hens, Chemistry of Materials, 2014

We analyze the surface chemistry of CuInS2 nanocrystals synthesized in the presence of amines. Using solution NMR spectroscopy and elemental analysis, we come to the conclusion that as-synthesized CuInS2 nanocrystals have charge neutral inorganic cores and are stabilized by a layer of tightly ...

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