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Articles from Wiley

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The latest chemistry from ChemPubSoc Europe and Wiley-VCH
Aggiornato: 18 settimane 5 giorni fa

A Boronic Acid Assay for the Detection of Mucin-1 Glycoprotein from Cancer Cells

1 agosto, 2017 - 00:00

A Boronic Acid Assay for the Detection of Mucin‐1 Glycoprotein from Cancer Cells

The back cover picture shows a sensitive, high-throughput platform for the detection of glycoproteins that are aberrantly expressed in disease, such as cancer-associated mucin-1. This assay, which enables the detection of mucin-1 directly from cancer cell lysates, entails the immobilization of carbohydrate-binding boronic acid moieties onto microplates coupled with chemiluminescence-based antibody analysis of surface-bound glycoproteins. More information can be found in the communication by M. D. Best et al. (DOI: 10.1002/cbic.201700288).

[Cover Picture]
Xiaoyu Zhang, Shiqiang Zhang, Seung Joon Baek, Michael D. Best
ChemBioChem, August 01, 2017, https://doi.org/10.1002/cbic.201700396 Read article

Efflux Pumps Might Not Be the Major Drivers of QAC Resistance in Methicillin-Resistant <i>Staphylococcus aureus</i>

1 agosto, 2017 - 00:00

Efflux Pumps Might Not Be the Major Drivers of QAC Resistance in Methicillin‐Resistant Staphylococcus aureus

The inside cover picture shows that cell-membrane composition might be the primary driver of bacterial resistance to quaternary ammonium compounds (QACs). Our findings shed light on this daunting phenomenon with world-wide impact as QACs are ubiquitous in household cleaners and typically serve as the last line of defense in home sanitation. More information can be found in the communication by K. P. C. Minbiole, W. M. Wuest, et al. (DOI: 10.1002/cbic.201700233).

[Cover Picture]
Megan C. Jennings, Megan E. Forman, Stephanie M. Duggan, Kevin P. C. Minbiole, William M. Wuest
ChemBioChem, August 01, 2017, https://doi.org/10.1002/cbic.201700395 Read article

Chaperone-Polymer-Assisted, Photodriven DNA Strand Displacement

1 agosto, 2017 - 00:00

Chaperone‐Polymer‐Assisted, Photodriven DNA Strand Displacement

The cover picture shows how a reversible DNA-strand-displacement system is photoregulated, and assisted by a chaperon polymer, PLL-g-Dex. With visible light irradiation, a strand incorporated with azobenzene moieties (in the trans form) can hybridize its complementary strand and release another without any toehold domain; with UV irradiation, these azobenzenes (in the cis form) devastatingly destabilize the duplex, resulting in reversed strand displacement. This clean and reversible light-driven process subverts these defects in classical toehold strand displacement and is expected to bring in a new tool in nucleic acid isothermal amplification and DNA nanotechnology. More information can be found in the communication by A. Maruyama, H. Asanuma, et al. (DOI: 10.1002/cbic.201700202).

[Cover Picture]
Bohao Cheng, Hiromu Kashida, Naohiko Shimada, Atsushi Maruyama, Hiroyuki Asanuma
ChemBioChem, August 01, 2017, https://doi.org/10.1002/cbic.201700394 Read article

Photoactivatable Mussel-Based Underwater Adhesive Proteins by an Expanded Genetic Code

1 agosto, 2017 - 00:00

Photoactivatable Mussel‐Based Underwater Adhesive Proteins by an Expanded Genetic Code

Light-controllable biomimetic glue: Expansion of the genetic code with the noncanonical amino acid (ncAA) ortho-nitrobenzyl 3,4-dihydroxyphenylalanine (ONB-DOPA) allows the production of photoactivatable mussel adhesive proteins in vivo. Carrying the ncAA at multiple sites, these proteins show spatiotemporally controllable adhesive properties.

[Communication]
Matthias Hauf, Florian Richter, Tobias Schneider, Thomas Faidt, Berta M. Martins, Tobias Baumann, Patrick Durkin, Holger Dobbek, Karin Jacobs, Andreas Möglich, Nediljko Budisa
ChemBioChem, August 01, 2017, https://doi.org/10.1002/cbic.201700327 Read article

Molecular Tools for Facilitative Carbohydrate Transporters (Gluts)

1 agosto, 2017 - 00:00

Molecular Tools for Facilitative Carbohydrate Transporters (Gluts)

Glut research has developed into a multidisciplinary area employing various aspects of chemistry and biology to understand structure–function relationships in carbohydrate transport. We provide a focused overview of advances made towards understanding of the structural basis for sugar uptake and the development of molecular tools for targeting Gluts for bioanalytical and biomedical applications.

[Review]
Marina Tanasova, Joseph R. Fedie
ChemBioChem, August 01, 2017, https://doi.org/10.1002/cbic.201700221 Read article

Identification of Nitroxoline and Halogenated Quinoline Analogues with Antibacterial Activities against Plant Pathogens

31 luglio, 2017 - 00:00

Identification of Nitroxoline and Halogenated Quinoline Analogues with Antibacterial Activities against Plant Pathogens

Bacterial pathogens that infect and kill plants are responsible for billions of dollars in crop damage (e.g. citrus canker). Here we report the identification of nitroxoline and simple halogenated quinoline antibacterial agents that demonstrate antibacterial activities against a panel of plant pathogens, including Xanthomonas citri and Burkholderia andropogonis.

[Communication]
Hussain H. Yousaf, Aaron T. Garrison, Yasmeen Abouelhassan, Akash Basak, Jeffrey B. Jones, Robert W. Huigens III
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701620 Read article

Cover Picture: (ChemistrySelect 22/2017)

31 luglio, 2017 - 00:00

  (ChemistrySelect 22/2017)

The cover picture shows that important petrochemical feedstocks of C3+C4 hydrocarbons are directly produced from the biomass-derived cellulose without external hydrogen or other expensive reagents. This direct catalytic conversion selectively proceeded, even at low temperature, by the bifunctional catalysis of Pt supported on zeolite catalyst. Acid site on zeolite catalyzes cellulose degradation to liquiform products, and Pt site does its conversion to hydrocarbons. Pt/zeolite catalysts with Pt particles larger than 5 nm showed a high catalytic activity by virtue of the existence of highly active Pt sites (i.e. high index {311} and {331} facets). More information can be found in the Full Paper by Shuhei Ogo et al. (DOI: 10.1002/slct.201701035). (Design: Shuhei Ogo).

[Cover Picture]

ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701585 Read article

The Ways of Factors Influencing High-Solid Enzymatic Hydrolysis of Sugarcane Bagasse Treated by Liquid Hot Water

31 luglio, 2017 - 00:00

The Ways of Factors Influencing High‐Solid Enzymatic Hydrolysis of Sugarcane Bagasse Treated by Liquid Hot Water

The residual lignin in the LHW-treated SCB showed inhibition on the enzymatic hydrolysis by blocking the access of cellobiohydrolase to crystalline cellulose. The low viscosity would benefit for cellulolytic hydrolysis with the time going. The increasing glucose concentration would impose more and more intense inhibition on the enzymatic hydrolysis, but hardly affect the conformation of peptide bond and the side chains containing tyrosine and/or tryptophan.

[Full Paper]
Wen Wang, Qiong Wang, Xuesong Tan, Wei Qi, Qiang Yu, Xinshu Zhuang, Zhenhong Yuan
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701353 Read article

Inhibition of Protein Synthesis with Highly Soluble Caged Compounds

31 luglio, 2017 - 00:00

Inhibition of Protein Synthesis with Highly Soluble Caged Compounds

Activating Inhibition: The biological activity of two protein synthesis inhibitors, anisomycin and emetine was caged with a (coumarin-4-yl)methoxycarbonyl group designed to improve solubility due to anionic substituents. The caged protein synthesis inhibitors successfully inhibit protein synthesis after uncaging and have promising chemical and photochemical characteristics.

[Full Paper]
Kathrin Marter, Janina Wetzel, Jenny Eichhorst, Nadja Eremina, Gérard Leboulle, Andreas Barth, Burkhard Wiesner, Dorothea Eisenhardt
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701175 Read article

All-Metal Aromatic Sandwich Binuclear Complexes: Electronic Structures, Aromaticity and Interactions with Hydrogen via Multicenter Bonds

31 luglio, 2017 - 00:00

 Electronic Structures, Aromaticity and Interactions with Hydrogen via Multicenter Bonds

The aromaticAl42− square ring can sandwich two transition metal (TM) atoms forming a stable all metal binuclear compound [Al4TM2Al4]q− (q=-2,0,2; TM=Sc, Ti, V, Y, Zr, Nb, La, Hf, Ta). One Al4Sc2Al4 molecule can adsorb 12 hydrogen atoms through hydrogen multicenter bonds between the H atoms and the Al or Sc atoms, which is characterized by specific vibration frequency. Therefore, the specific mode in the infrared band can be selected to induce the hydrogen desorption from the adsorbed Al8Sc2.

[Full Paper]
Haiyan Zhu, Tingting Cao, Qiyan Zhang, Ximin Liang, Bingbing Suo, Wenli Zou, Huixian Han, Yixuan Huang, Jianfu Li
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701127 Read article

Highly Fluorescent and Stable Ruthenium Unit/Layered Double Hydroxide Composite with Sensitive Detection of Cr<sub>2</sub>O<sub>7</sub><sup>2−</sup>

31 luglio, 2017 - 00:00

Highly Fluorescent and Stable Ruthenium Unit/Layered Double Hydroxide Composite with Sensitive Detection of Cr2O72−

An intensely fluorescent Ru unit/layered double hydroxide composite had been assembled by incorporating ruthenium functional unit into layered double hydroxide matrices. The acquired composite showed sensitive detection on Cr2O72− with selectivity. Moreover, such composite exhibited high stability during the detection. We think this work will provide a feasible method for the fabrication of novel composite fluorescence chemosensors.

[Full Paper]
Lina Li, Sasa Wang, Yingying Xu, Sangen Zhao, Zhihua Sun, Chengmin Ji, Muhammad Adnan Asghar, Junhua Luo
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201701036 Read article

Cobalt and Copper Co–Catalyzed Three-Component Reactions for the Synthesis of 1,3,4-Trisubstituted Pyrazoles

31 luglio, 2017 - 00:00

Cobalt and Copper Co–Catalyzed Three‐Component Reactions for the Synthesis of 1,3,4‐Trisubstituted Pyrazoles

A novel cobalt and copper co-catalyzed for exclusive synthesis of 1,3,4-trisubstituted pyrazoles via a one-pot reaction of hydrazones with nitromethane and benzaldehydes has been reported. This new strategy involves C−C and C−N bond formation. In addition, economical starting materials, multicomponent reaction advantages and highly regioselective make this protocol promising and practical.

[Communication]
Daidong Wei, Haojie Ma, Xiaoqiang Zhou, Chong Shi, Xinliang Luo, Guosheng Huang
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201700987 Read article

Selective Oxidation of Cyclohexane Using Graphene Oxide-Supported Ceria Nanocomposites with Exposed Active {1 0 0} Facets

31 luglio, 2017 - 00:00

Selective Oxidation of Cyclohexane Using Graphene Oxide‐Supported Ceria Nanocomposites with Exposed Active {1 0 0} Facets

Synthesis of CeO2(x)/GO nanocatalysts in two different morphology includes flower-like and nanocrystals, and investigates their catalytic activity on vapor phase selective oxidation of cyclohexane to cyclohexanone respect to active {1 0 0} facets.

[Full Paper]
Selvamani Arumugam, Babu Cadiam Mohan, Srinivasan Vinju Vasudevan, Ramkumar Vanaraj, Balasubramanian Rukmanikrishnan, Thirukumaran Periyasamy, Shakila Parveen Asrafali
ChemistrySelect, July 31, 2017, https://doi.org/10.1002/slct.201700769 Read article

Efficient Synthesis of Enantioenriched Isoxazoles by Chirality Transfer in Gold-Catalyzed Cyclization/Methylene-Group Transfer Followed by Carbonyl Ene Reaction

31 luglio, 2017 - 00:00

Efficient Synthesis of Enantioenriched Isoxazoles by Chirality Transfer in Gold‐Catalyzed Cyclization/Methylene‐Group Transfer Followed by Carbonyl Ene Reaction

[Communication]
Shinya Gima, Itaru Nakamura, Masahiro Terada
Eur. J. Org. Chem., July 31, 2017, https://doi.org/10.1002/ejoc.201700708 Read article

Linear Selective C–H Bond Alkylation with Activated Olefins Catalyzed by Cp*Co<sup>III</sup>

31 luglio, 2017 - 00:00

Linear Selective C–H Bond Alkylation with Activated Olefins Catalyzed by Cp*CoIII

[Communication]
Nagaraju Barsu, Balakumar Emayavaramban, Basker Sundararaju
Eur. J. Org. Chem., July 31, 2017, https://doi.org/10.1002/ejoc.201700696 Read article

Conventional and Microwave Synthesis of 2-Fluoro-diazaborolidines and Their Reaction with Lithium Phosphanides

31 luglio, 2017 - 00:00

Conventional and Microwave Synthesis of 2‐Fluoro‐diazaborolidines and Their Reaction with Lithium Phosphanides

[Full Paper]
Manuel Kaaz, Christian Bäucker, Max Deimling, Simon König, Simon H. Schlindwein, Johannes Bender, Martin Nieger, Dietrich Gudat
Eur. J. Inorg. Chem., July 31, 2017, https://doi.org/10.1002/ejic.201700559 Read article

Polyborate Anions Partnered with Large Nonmetal Cations: Triborate(1–), Pentaborate(1–) and Heptaborate(2–) Salts

31 luglio, 2017 - 00:00

 Triborate(1–), Pentaborate(1–) and Heptaborate(2–) Salts

[Full Paper]
Michael A. Beckett, Simon J. Coles, Peter N. Horton, Charlotte L. Jones
Eur. J. Inorg. Chem., July 31, 2017, https://doi.org/10.1002/ejic.201700551 Read article

Reversible Small-Molecule Interactions with Coordinatively Unsaturated Metal Centers Held in Metallathiaborane Clusters

31 luglio, 2017 - 00:00

Reversible Small‐Molecule Interactions with Coordinatively Unsaturated Metal Centers Held in Metallathiaborane Clusters

The interactions of new metallathiaboranes with the small molecules NH3 and CO are investigated. The reversible uptake of the molecules can be modified by changing the metal, the thiaborane fragment or the ligand sphere. This chemistry represents the first stage in our design of new systems for the activation of small molecules using earth-abundant metals.

[Full Paper]
Jonathan Bould, Vincenzo Passarelli, Luis A. Oro, Ramón Macías
Eur. J. Inorg. Chem., July 31, 2017, https://doi.org/10.1002/ejic.201700539 Read article

Coordinating Ability of the Iminophosphorane Group in <i>ortho</i>-Carborane Derivatives

31 luglio, 2017 - 00:00

Coordinating Ability of the Iminophosphorane Group in ortho‐Carborane Derivatives

C-carboranyl-phosphine–iminophosphorane ligands are shown to promote (P, N) chelation towards palladium. This coordination mode activates the closo-carborane cage for deboronation by methanol, giving rise to the nido derivatives.

[Full Paper]
Pablo Crujeiras, José Luis Rodríguez-Rey, Antonio Sousa-Pedrares
Eur. J. Inorg. Chem., July 31, 2017, https://doi.org/10.1002/ejic.201700487 Read article

Effect of Nitrogen Doping Level on the Performance of N-Doped Carbon Quantum Dot/TiO<sub>2</sub> Composites for Photocatalytic Hydrogen Evolution

31 luglio, 2017 - 00:00

Effect of Nitrogen Doping Level on the Performance of N‐Doped Carbon Quantum Dot/TiO2 Composites for Photocatalytic Hydrogen Evolution

Dots the way, a-ha, a-ha, I like it: N-doped carbon quantum dots (NCDs) with high N/C atomic ratios (0.14–0.30) were fabricated by a facile hydrothermal process. N-doping suppressed nonradiative quenching in the NCDs, delivering photoluminescence quantum yields as high as 68 %. NCDs/P25-TiO2 composites showed good activity for photocatalytic H2 evolution under both UV and visible illumination, which can be attributed to efficient excitation wavelength-dependent interfacial charge transfer.

[Full Paper]
Run Shi, Zi Li, Huijun Yu, Lu Shang, Chao Zhou, Geoffrey I. N. Waterhouse, Li-Zhu Wu, Tierui Zhang
ChemSusChem, July 31, 2017, https://doi.org/10.1002/cssc.201700943 Read article

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