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5,242 Newest Publications about the topic sulfur

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Mapping RNA-Protein Interactions Using Iodine Footprinting

01-Dec-2014 | Nilsen, T. W., CSH Protocols, 2014

Footprinting methods are used to determine the binding site of a protein on an RNA. They are based on the fact that a protein bound to an RNA protects the RNA from cleavage by chemicals or nucleases. The footprinting method described here relies on the ability of iodoethanol to cleave the ...

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Valuable Crude Oil from Hydrothermal Liquefaction of an Aliphatic Coal

01-Dec-2014 | Blaine E. Hartman; Patrick G. Hatcher, Energy & Fuels, 2014

Artificial maturation techniques, such as hydrothermal liquefaction (HTL), have demonstrated the ability to generate petroleum-like products, termed bio-oils, from feedstocks including manure, algae and agricultural wastes; however, the oxygen, nitrogen, and sulfur content of bio-oils often ...

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Doping against the Native Propensity of MoS2: Degenerate Hole Doping by Cation Substitution

01-Dec-2014 | Joonki Suh; Tae-Eon Park; Der-Yuh Lin; Deyi Fu; Joonsuk Park; Hee Joon Jung; Yabin Chen; Changhyun Ko; Chaun Jang; Y ..., Nano Letters, 2014

Layered transition metal dichalcogenides (TMDs) draw much attention as the key semiconducting material for two-dimensional electrical, optoelectronic, and spintronic devices. For most of these applications, both n- and p-type materials are needed to form junctions and support bipolar carrier ...

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Simple Model for Predicting the Cutting Temperature between Light and Heavy Fractions in Fluid Catalytic Cracking Naphtha Selective Hydrodesulfurization Processes

01-Dec-2014 | Lei Wang; Gang Shi; Jian Xu; Yu Fan; Xiaojun Bao, Energy & Fuels, 2014

In selective hydrodesulfurization processes for hydro-upgrading fluid catalytic cracking (FCC) naphtha with high olefin and sulfur contents, it is a common practice to split the feeding full-range FCC naphtha into a light fraction and a heavy fraction. This operation can effectively alleviate ...

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Influence of the Density Functional and Basis Set on the Relative Stabilities of Oxygenated Isomers of Diiron Models for the Active Site of [FeFe]-Hydrogenase

01-Dec-2014 | Caiping Liu; Tianbiao Liu; Michael B. Hall, Journal of Chemical Theory and Computation, 2014

A series of different density functional theory (DFT) methodologies (24 functionals) in conjunction with a variety of six different basis sets (BSs) was employed to investigate the relative stabilities in the oxygenated isomers of diiron complexes that mimic the active site of [FeFe]-hydrogenase: ...

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Enhanced Oxidative Desulfurization of Dibenzothiophene by Functional Mo‐Containing Mesoporous Silica

28-Nov-2014 | Ming Zhang, Wenshuai Zhu, Suhang Xun, Jun Xiong, Wenjing Ding, Meng Li, Qian Wang, Huaming Li, Chemical Engineering & Technology, 2014

Abstract Functional mesoporous Mo–SiO2 materials were synthesized by a one‐pot and facile room‐temperature procedure, and characterized by X‐ray diffraction, TEM, Raman spectroscopy, FT‐IR, diffuse reflectance spectra, and BET analysis. The experimental results demonstrated that the mesoporous ...

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Thioautotrophic bacterial endosymbionts are degraded by enzymatic digestion during starvation: Case study of two lucinids Codakia orbicularis and C. orbiculata

28-Nov-2014 | Sten König, Hervé Le Guyader, Olivier Gros, Microscopy Research and Technique, 2014

ABSTRACT The Caribbean bivalves Codakia orbicularis (Linné, 1758) and C. orbiculata (Montagu, 1808) live in seagrass beds of Thalassia testudinum and harbor intracellular sulfur‐oxidizing gamma‐proteobacteria. These bacterial symbionts fix CO2 via the Calvin Benson cycle and provide organic ...

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Combining Organometallic Reagents, the Sulfur Dioxide Surrogate DABSO, and Amines: A One‐Pot Preparation of Sulfonamides, Amenable to Array Synthesis

27-Nov-2014 | Alex S. Deeming, Claire J. Russell, Michael C. Willis, Angewandte Chemie International Edition, 2014

Abstract We describe a method for the synthesis of sulfonamides through the combination of an organometallic reagent, a sulfur dioxide equivalent, and an aqueous solution of an amine under oxidative conditions (bleach). This simple reaction protocol avoids the need to employ sulfonyl chloride ...

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Functionalization of the meso‐Phenyl Ring of Rhodamine Dyes Through SNAr with Sulfur Nucleophiles: Synthesis, Biophysical Characterizations, and Comprehensive NMR Analysis

26-Nov-2014 | Gyuzel Yu. Mitronova, Svetlana Polyakova, Christian A. Wurm, Kirill Kolmakov, Thomas Wolfram, Dirk N. H. Meineke, Vl ..., European Journal of Organic Chemistry, 2014

Abstract Aromatic nucleophilic substitution (SNAr) of fluorine in 9‐(3′‐carboxy‐4′,5′,6′,7′‐tetrafluorophenyl) groups of xanthene dyes constitutes a powerful tool in dye design. Thiols and amines regioselectively replace F‐6′. This approach enables additional hydrophilic residues or functional ...

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