ChemPlusChem

Cover image for Vol. 80 Issue 8

Early View (Online Version of Record published before inclusion in an issue)

Editor: Marisa Spiniello

Impact Factor: 3.026

ISI Journal Citation Reports © Ranking: 2014: 43/157 (Chemistry Multidisciplinary)

Online ISSN: 2192-6506

Associated Title(s): Angewandte Chemie International Edition, Chemistry - A European Journal

VIEW

  1. 1 - 48
  1. Full Papers

    1. Hydrophobic Porous Polyketimines for the Capture of CO2

      Chao Xu, Ermiase Dinka and Prof. Dr. Niklas Hedin

      Article first published online: 28 AUG 2015 | DOI: 10.1002/cplu.201500344

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      Porous polyketimine polymers showed moderate hydrophobicity, high CO2 capacity, and high CO2-over-N2 selectivity (see figure). These polymers are potential sorbents for post-combustion capture of CO2.

    2. Selective Liquid-Phase Hydrogenation of a Nitro Group in Substituted Nitrobenzenes over Au/Al2O3 Catalyst in a Packed-Bed Flow Reactor

      Dr. Alexey L. Nuzhdin, Boris L. Moroz, Dr. Galina A. Bukhtiyarova, Prof. Sergey I. Reshetnikov, Pavel A. Pyrjaev, Pavel V. Aleksandrov and Prof. Valerii I. Bukhtiyarov

      Article first published online: 28 AUG 2015 | DOI: 10.1002/cplu.201500310

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      Ultraselective hydrogenation of [BOND]NO2 groups in substituted nitrobenzenes was performed by using a three-phase flow reactor packed with the Au/Al2O3 catalyst. As a result, a series of commercially valuable anilines were obtained in almost 100 % yield under mild conditions (see figure). The catalyst activity, which gradually decreases during the process owing to carbon deposition, was recovered by oxidative treatment without loss of selectivity.

  2. Cover Profiles

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      Magnetic Dextran Nanoparticles That Bear Hydrophilic Porphyrin Derivatives: Bimodal Agents for Potential Application in Photodynamic Therapy

      Dr. Jean-Pierre Mbakidi, Dr. Frédérique Brégier, Dr. Tan-Sothea Ouk, Dr. Robert Granet, Dr. Sandra Alves, Dr. Eric Rivière, Dr. Sylviane Chevreux, Prof. Gilles Lemercier and Prof. Vincent Sol

      Article first published online: 26 AUG 2015 | DOI: 10.1002/cplu.201500361

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      The group has crucial expertise in synthesis of tetrapyrrolic macrocycles, chemical modifications, and chemical interactions (covalent or ionic) with biomolecules and has also acquired the know-how to carry out biological studies (cell death pathways of various cell lines, bacterial tests).“ Read more about the story behind the cover in the Cover Profile and about the research itself on page (DOI: 10.1002/cplu.201500087).

  3. Full Papers

    1. One-pot Synthesis of PtSn Bimetallic Composites and Their Application as Highly Active Catalysts for Ethanol Electrooxidation

      Yue Feng, Caiqin Wang, Duan Bin, Chunyang Zhai, Dr. Fangfang Ren, Prof. Ping Yang and Prof. Yukou Du

      Article first published online: 26 AUG 2015 | DOI: 10.1002/cplu.201500315

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      Bimetallic PtSn electrocatalysts with different atomic ratios have been fabricated by a chemical reduction in a facile manner. Electrochemical measurements reveal that Pt3Sn1 catalysts exhibit the highest efficiency and stable electrocatalytic performance towards ethanol electrooxidation in an alkaline medium (see figure).

    2. A Highly Water-Dispersible/Magnetically Separable Palladium Catalyst: Selective Transfer Hydrogenation or Direct Reductive N-Formylation of Nitroarenes in Water

      Prof. Dr. Babak Karimi, Fariborz Mansouri and Prof. Hojatollah Vali

      Article first published online: 24 AUG 2015 | DOI: 10.1002/cplu.201500302

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      Going green: An ionic-liquid-functionalized magnetic nanoparticle containing palladium is a reusable, easily recoverable, highly selective, acid-resistant, and switchable catalyst for transfer hydrogenation or the direct reductive N-formylation of nitroarenes in water with readily available hydrogen donors (see scheme; TEG=triethylene glycol).

  4. Cover Pictures

    1. Definitive Insight into the Graphite Oxide Reduction Mechanism by Deuterium Labeling

      Ondřej Jankovský, Petr Šimek, Jan Luxa, Prof. David Sedmidubský, Dr. Ivo Tomandl, Dr. Anna Macková, Romana Mikšová, Dr. Petr Malinský, Prof. Martin Pumera and Prof. Zdeněk Sofer

      Article first published online: 19 AUG 2015 | DOI: 10.1002/cplu.201500360

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      The cover picture shows graphite oxide (upper part) and its reduction in the solution containing complex hydrides (lower part). Deuterium labeling allowed clarification of the puzzling mechanism by proving that reduction was also accompanied by graphene hydrogenation. Details are given in the Full Paper by Zdeněk Sofer, Martin Pumera and co-workers (DOI: 10.1002/cplu.201500168).

    2. Magnetic Dextran Nanoparticles That Bear Hydrophilic Porphyrin Derivatives: Bimodal Agents for Potential Application in Photodynamic Therapy

      Dr. Jean-Pierre Mbakidi, Dr. Frédérique Brégier, Dr. Tan-Sothea Ouk, Dr. Robert Granet, Dr. Sandra Alves, Dr. Eric Rivière, Dr. Sylviane Chevreux, Prof. Gilles Lemercier and Prof. Vincent Sol

      Article first published online: 19 AUG 2015 | DOI: 10.1002/cplu.201500359

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      The cover picture shows the magnetic and optical properties of iron oxide, dextran-based superparamagnetic nanoparticles bearing hydrophilic porphyrin derivatives, which are new bimodal contrast agents in magnetic resonance imaging and photosensitizers in photodynamic therapy. The therapeutic potential of these nanoparticles was evaluated in vitro against the HaCaT cell line. Details are given in the Full Paper by Vincent Sol and co-workers (DOI: 10.1002/cplu.201500087).

  5. Full Papers

    1. Bicomponent Assembly of VO2 and Polyaniline-Functionalized Carbon Nanotubes for the Selective Oxidation of Biomass-Based 5-Hydroxymethylfurfural to 2,5-Diformylfuran

      Yuanyuan Guo and Prof. Dr. Jinzhu Chen

      Article first published online: 19 AUG 2015 | DOI: 10.1002/cplu.201500292

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      Selective oxidation: VO2 immobilized on polyaniline-functionalized carbon nanotubes (CNTs), by means of a spontaneous redox-induced bicomponent assembly route, efficiently promotes the selective oxidation of biomass-based 5-hydroxymethylfurfural to 2,5-diformylfuran (see scheme).

  6. Communications

    1. One-Pot Asymmetric Synthesis of Cyclopropanes with Quaternary Centers Starting From Bromonitroalkenes under Aminocatalytic Conditions

      Javier Luis-Barrera, Dr. Ruben Mas-Ballesté and Dr. José Alemán

      Article first published online: 13 AUG 2015 | DOI: 10.1002/cplu.201500320

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      Cyclopropanes with a quaternary center were efficiently synthesized starting from bromonitroalkenes and alkyl aldehydes under aminocatalysis (see scheme). The products were obtained in good yield and excellent enantioselectivities, meanwhile theoretical calculations were applied to investigate the reaction mechanism. EWG=electron-withdrawing group, LG=leaving group.

  7. Full Papers

    1. Chitin-Derived Mesoporous, Nitrogen-Containing Carbon for Heavy-Metal Removal and Styrene Epoxidation

      Dr. Yongjun Gao, Xi Chen, Dr. Jiaguang Zhang and Prof. Dr. Ning Yan

      Article first published online: 12 AUG 2015 | DOI: 10.1002/cplu.201500293

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      Coming out of their shells: Mesoporous nitrogen-containing carbon materials were prepared by carbonizing chitin at different temperatures. The carbon products prepared at 400–600 °C exhibited good performance in the removal of heavy metals from water owing to nitrogen-containing groups such as amine, amide, and pyrrolic functionalities. The graphitic nitrogen atoms in the carbon products prepared at 800–1000 °C endowed them with excellent catalytic activity for the epoxidation of styrene (see figure).

    2. Hierarchical Nanohexagon Ceramic Sheet Layers as Platform Adsorbents for Hydrophilic and Hydrophobic Insecticides from Agricultural Wastewater

      Dr. Aly Derbalah, Prof. Sherif A. El-Safty, Dr. Mohamed A. Shenashen and Dr. Mohamed Khairy

      Article first published online: 11 AUG 2015 | DOI: 10.1002/cplu.201500244

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      Clean up! Hierarchical meso- and macroporous hexagon NiO sheets can accommodate hydrophilic and hydrophobic insecticide molecules into the pore cavities and between the layer matrices. These nanohexagon sheet adsorbents can be used to remove and recover a range of carbamate and lindane insecticides from contaminated water sources (see figure).

  8. Communications

    1. Identification of Cellular MicroRNA Coupling Strand Displacement Polymerization and Nicking-Endonuclease-Based Cleavage

      Dr. Peng Miao, Dr. Yuguo Tang, Dr. Qi Zhang, Dr. Bing Bo and Dr. Jue Wang

      Article first published online: 10 AUG 2015 | DOI: 10.1002/cplu.201500249

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      A highly sensitive method to identify cellular microRNA has been developed by coupling strand displacement polymerization and nicking-endonuclease-based cleavage. This strategy consists of having a blocker/signal DNA hybrid on the electrode, target induced strand displacement amplification composed of a primer and polymerase, and nicking endonuclease to cleave the complete blocker/signal DNA hybrid.

  9. Reviews

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      Radicals and Dormant Species in Biology and Polymer Chemistry

      Prof. Chryssostomos Chatgilialoglu, Dr. Carla Ferreri and Prof. Krzysztof Matyjaszewski

      Article first published online: 4 AUG 2015 | DOI: 10.1002/cplu.201500271

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      Radical innovation: The past two decades have witnessed significant advances in the understanding of the role and methods of creation and control of free radicals in biological and polymerization processes. A commonality between polymers and life sciences, distant fields at first glance, can be found in their controlled radical reactivity, that is, the persistency of radical species. They resemble “Sleeping Beauty” to give marvelous results upon their awakening. The relevant convergences have been highlighted in this Review with seminal examples and parallelisms, thereby providing multidisciplinarity as a necessary driver of radical innovation in basic and applied science.

  10. Full Papers

    1. Host–Guest Complexes of Flavylium Cations and Cucurbit[7]uril: The Influence of Flavylium Substituents on the Structure and Stability of the Complex

      Dr. Nuno Basílio, Prof. Vesselin Petrov and Prof. Fernando Pina

      Article first published online: 4 AUG 2015 | DOI: 10.1002/cplu.201500304

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      Like a ring on a finger: Flavylium compounds form stable 1:1 host–guest complexes with cucurbit[7]uril. Both the stability and the structure of the inclusion complex can be tuned by changing the nature and position of the substituents present on the flavylium core (see scheme).

  11. Corrigenda

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      Corrigendum: Synthesis and/or Molecular Structures of Some Simple 2,1,7- and 2,1,12-Ruthena- and Cobaltacarboranes

      Maria Elena Lopez, David Ellis, Paul R. Murray, Georgina M. Rosair, Alan J. Welch and Lesley J. Yellowlees

      Article first published online: 31 JUL 2015 | DOI: 10.1002/cplu.201500319

  12. Full Papers

    1. Composite Noble-Metal Films/H+-Conducting Solid-Polymer Electrolyte Assemblies: The Nitrate-Reduction Activity in an Asymmetric Sandwich-Type Reactor

      Dr. Mohammad A. Hasnat, Muhammad Amirul Islam, Dr. S. Ben Aoun, Jamil A. Safwan, Dr. Mohammed M. Rahman and Prof. Abdullah M. Asiri

      Article first published online: 29 JUL 2015 | DOI: 10.1002/cplu.201500255

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      It′s what′s inside that counts: The catalyst composition has been found to determine the reactivity and product selectivity of electrocatalytic nitrate-reduction reactions. The catalytic performance of both bimetallic (Pt–Pd) and trimetallic (Cu–Pt–Pd) assemblies was investigated. Reduction of NO3 to NH3 proceeded through a hydrogenation reaction followed by electrochemical hydrogen generation on the Pt–Pd surface. Hydrogen reduced NO3 to NH3 catalyzed by Cu (see scheme).

    2. Antiproliferative and Antioxidant Activity of Glycoconjugates of Dithiocarbamates and Their Copper(II) and Zinc(II) Complexes

      Dr. Rita Turnaturi, Dr. Valentina Oliveri, Dr. Maurizio Viale, Massimiliano Monticone and Prof. Graziella Vecchio

      Article first published online: 28 JUL 2015 | DOI: 10.1002/cplu.201500289

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      Family ties: Dithiocarbamate (DTC) glycoconjugates were synthesized, characterized, and compared to the parent DTC. Their copper(II) and zinc(II) complexes were investigated by electrospray ionization mass spectrometry and UV/Vis spectroscopy. The in vitro cytotoxic and apoptotic activities of DTC derivatives were assessed in human cancer cell lines, also in the presence of metal ions (see scheme). Moreover, their superoxide dismutase-like activity was determined.

    3. P3-Type Layered Sodium-Deficient Nickel–Manganese Oxides: A Flexible Structural Matrix for Reversible Sodium and Lithium Intercalation

      Maria Kalapsazova, Dr. Gregorio F. Ortiz, Prof. Jose L. Tirado, Dr. Oleksandr Dolotko, Prof. Ekaterina Zhecheva, Dr. Diana Nihtianova, Dr. Lyuben Mihaylov and Prof. Radostina Stoyanova

      Article first published online: 27 JUL 2015 | DOI: 10.1002/cplu.201500215

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      Squeeze in! Sodium-deficient nickel–manganese oxides exhibit a layered structure, which is flexible enough to acquire different layer stacking. Specific features of the P3-type structure for reversible and fast sodium and lithium intercalation are demonstrated; this property contributes to the design of low-cost electrodes for both sodium- and lithium-ion batteries (see figure).

  13. Communications

    1. Thermodynamically Favorable Conversion of Hydrogen Sulfide into Valuable Products through Reaction with Sodium Naphthalenide

      Xuemin Li, Prof. Rachel M. Morrish, Prof. Yuan Yang, Prof. Colin A. Wolden and Prof. Yongan Yang

      Article first published online: 23 JUL 2015 | DOI: 10.1002/cplu.201500299

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      Waste not, want not: The chemical waste hydrogen sulfide (H2S) is notorious for its production in many industries, harming creatures, corroding equipment, poisoning catalysts, and requiring energy-intensive and cost-ineffective abatements. Now a thermodynamically favorable process can convert H2S into value-added energy materials.

    2. Material Clocking by Silica Nanoparticle Precipitation in Solution Phase that is Tunable by Organic Molecules

      Dr. Masamichi Miyagawa and Prof. Dr. Masahiko Yamaguchi

      Article first published online: 21 JUL 2015 | DOI: 10.1002/cplu.201500300

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      Molecular tuning: A suspension of silica (P)-nanoparticles in the presence of organic molecules in solution exhibits a material clocking phenomenon during delayed precipitation (see figure). Analysis of the process shows no change during a certain period, and then an abrupt stair-shaped kinetic change with precipitation. The delay in the precipitation can be reset by sonication, and can be tuned by the structure of molecules added to the (P)-nanoparticle suspension.

  14. Full Papers

    1. Transesterification of Tributyrin and Dehydration of Fructose over a Carbon-Based Solid Acid Prepared by Carbonization and Sulfonation of Glucose

      Chuanxu Wang, Prof. Fulong Yuan, Lijing Liu, Dr. Xiaoyu Niu and Prof. Yujun Zhu

      Article first published online: 17 JUL 2015 | DOI: 10.1002/cplu.201500261

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      So solid! A carbon-based sulfonated solid acid is prepared through a facile method of simultaneous carbonization and sulfonation of D-glucose (see figure). The catalyst shows excellent activity for the transesterification of tributyrin and the dehydration of fructose to 5-hydroxymenthylfurfural (5-HMF).

    2. Kinetic and Theoretical Studies of Beta-Lactone Reactivity—A Quantitative Scale for Biological Application

      Elija N. Wiedemann, Franziska A. Mandl, Iris D. Blank, Prof. Dr. Christian Ochsenfeld, Dr. Armin R. Ofial and Prof. Dr. Stephan A. Sieber

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cplu.201500246

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      How reactive? Pharmacologically relevant electrophilic scaffolds, such as beta-lactones and beta-lactams, are kinetically evaluated according to their reactivity towards nucleophiles under physiological conditions (see figure). The ambident character of beta-butyrolactone (C1 vs. C3 attack) towards aromatic and primary aliphatic amines can be shown by kinetic studies and explained by QM/MM calculations using linear-scaling QM methods.

    3. Electrocatalytic Activity of Tungsten Oxide Nanoclusters Grafted on Mesoporous Nitrogen-Rich Carbon Material in the Dioxygen Reduction Reaction

      Aarti Tiwari, Dr. Tharamani C. Nagaiah and Dr. Ankur Bordoloi

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cplu.201500253

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      Take a closer look at the surface: Tungsten oxide (WOx) nanoclusters are implanted on the surface of mesoporous nitrogen-rich carbon material (MNCx). The electrochemical activity of the WOx/MNCx composites reveals that the WOx (5 %)/MNCx catalyst is the optimal composite for the oxygen reduction reaction (ORR) in alkaline medium (see figure).

    4. Step-by-Step Layer-by-Layer Assembly Using 1,2,3-Triazole as a Platform for Controlled Multicharged and Multifunctional Coatings

      Dr. Guilhem Godeau, Dr. Thierry Darmanin and Prof. Frédéric Guittard

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cplu.201500214

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      One step at a time: Multicharged and multifunctional coatings can now be prepared by layer-by-layer assembly and by using click chemistry. The charged moieties are due to the presence of triazolium groups, and various functional groups can be introduced in each layer (see scheme).

    5. Self-Assembly of PEG-Coated Ceria Nanoparticles Shows Dependence on PEG Molecular Weight and Ageing

      Craig J. Neal, Dr. Soumen Das, Shashank Saraf, Dr. Laurene Tetard and Prof. Sudipta Seal

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cplu.201500237

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      Pull yourself together: Age-dependent self-assembly of cerium oxide nanostructures results in different structures from different chain lengths of poly(ethylene glycol) through hydrogen-bonding and electrostatic interactions (see scheme). Increasing chain length produces increased hydrophobicity and increased chain flexibility. Chain coiling and intramolecular bonding also influence the ability of particles to self-assemble.

    6. One-Pot Preparation of Propargylamines Catalyzed by Heterogeneous Copper Catalyst Supported on Periodic Mesoporous Organosilica with Ionic Liquid Framework

      Dr. Mohammad Gholinejad, Prof. Babak Karimi, Afsaneh Aminianfar and Dr. Mojtaba Khorasani

      Article first published online: 14 JUL 2015 | DOI: 10.1002/cplu.201500167

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      Copper-supported PMO was used as an efficient catalyst for the one-pot preparation of propargylamines. The catalyst was easily recovered by filtration and reused in at least seven reaction cycles without any loss of catalytic activity (see scheme).

    7. Design of Glycosyltransferase Inhibitors: Serine Analogues as Pyrophosphate Surrogates?

      Dr. Shuai Wang, Dr. Jose A. Cuesta-Seijo, Alexander Striebeck, Dr. Dominique Lafont, Prof. Monica M. Palcic and Dr. Sébastien Vidal

      Article first published online: 14 JUL 2015 | DOI: 10.1002/cplu.201500282

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      Moving targets: Nucleotide diphosphate sugar analogues were synthesized through a combination of glycosylation, amide bond formation and azide–alkyne “click” chemistry. High micromolar inhibitors were obtained with a selection of five galactosyltransferases. The structures and inhibitory patterns of the analogues demonstrate the flexibility of the enzymes which complicates the rational design of glycosyltransferase inhibitors.

  15. Cover Pictures

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      TEMPO-Oxidized Cellulose Cross-Linked with Branched Polyethyleneimine: Nanostructured Adsorbent Sponges for Water Remediation

      Dr. Lucio Melone, Dr. Bianca Rossi, Dr. Nadia Pastori, Walter Panzeri, Prof. Andrea Mele and Prof. Carlo Punta

      Article first published online: 1 JUL 2015 | DOI: 10.1002/cplu.201500290

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      The cover picture shows the preparation of adsorbent sponges for water remediation from TEMPO-oxidized cellulose nanofibers (TOCNF) and branched polyethyleneimine (bPEI; 25 kDa). The cross-linking occurs between the carboxylic groups of TOCNF and the primary amino groups of bPEI during the thermal treatment of freeze-dried TOCNF-bPEI composites. These materials combine good mechanical stability in water, compared to TOCNF, with interesting performance in removing both heavy metals and phenolic derivatives from water. Details are given in the Full Paper by Lucio Melone and Carlo Punta et al. (DOI: 10.1002/cplu.201500145).

  16. Full Papers

    1. “On–Off” RGD Signaling Using Azobenzene Photoswitch-Modified Surfaces

      Dr. Elisa Vaselli, Chiara Fedele, Dr. Silvia Cavalli and Prof. Dr. Paolo A. Netti

      Article first published online: 1 JUL 2015 | DOI: 10.1002/cplu.201500179

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      Let there be light: Switchable light-responsive surfaces were developed by coupling the GRGDS peptide sequence to an azobenzene unit and then clicked to silanized glass substrates (see figure). The “on–off” reversible switch was monitored by contact angle techniques and photocontrolled cell adhesion was tested with human umbilical vein endothelial cells (HUVECs).

    2. Platinum(II) Schiff Base Complexes as Photocatalysts for Visible-Light-Induced Cross-Dehydrogenative Coupling Reactions

      Dr. Deepak Prakash Shelar, Ting-Ting Li, Prof. Dr. Yong Chen and Prof. Dr. Wen-Fu Fu

      Article first published online: 1 JUL 2015 | DOI: 10.1002/cplu.201500157

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      A nice coupling: Platinum(II) complexes with Schiff base ligands are found to be robust and efficient catalysts for oxidative C[BOND]C coupling reactions with oxygen as the oxidant under visible light irradiation (see scheme).

    3. Preparation and Photoelectric and Magnetic Properties of Cu2MnSnS4 Nanosheets

      Prof. Liang Shi, Yanan Li, Chunyan Wu and Prof. Ren-Kui Zheng

      Article first published online: 29 JUN 2015 | DOI: 10.1002/cplu.201500163

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      Cu2MnSnS4 nanosheets oriented parallel to the (002) crystal plane have been synthesized through a simple solution method. The Cu2MnSnS4 nanosheets show enhanced conductivity under light irradiation, disclosing their suitability for photovoltaic applications (see figure). Weakly ferromagnetic behavior at low temperatures was found for the Cu2MnSnS4 nanosheets.

    4. A Facile and One-Step Synthesis of Visible-Light-Responsive Silver and Mesoporous Carbon Comodified Carbon–Zinc Oxide Composites

      Dr. Fangxiao Wang, Dr. Lin Liang, Dr. Lei Shi, Dr. Mengshuai Liu and Prof. Dr. Jianmin Sun

      Article first published online: 23 JUN 2015 | DOI: 10.1002/cplu.201500158

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      Light harvesting: Visible-light-responsive Ag and mesoporous carbon (mC) comodified C[BOND]ZnO composites with excellent photocatalytic activity have been fabricated by using a green, economical process in CO2-expanded ethanol without additional precipitant or mesoscale templates. The remarkable improvement in activity is attributed to synergistic effects between modified Ag and mC, doped C, and small-sized ZnO (see figure).

  17. Communications

    1. Cyclopamine–Paclitaxel-Containing Nanoparticles: Internalization in Cells Detected by Confocal and Super-Resolution Microscopy

      Dr. Gaia Fumagalli, Dr. Davide Mazza, Dr. Michael S. Christodoulou, Dr. Giovanna Damia, Dr. Francesca Ricci, Dr. Dario Perdicchia, Dr. Barbara Stella, Prof. Dr. Franco Dosio, Dr. Panagiota A. Sotiropoulou and Prof. Dr. Daniele Passarella

      Article first published online: 10 JUN 2015 | DOI: 10.1002/cplu.201500156

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      Double and triple whammy: Cyclopamine- and paclitaxel-containing hetero-nanoparticles show combined efficacy in the treatment of three different cancer cell lines. When a dye–squalene conjugate was added, the ternary combination permitted the observation of the internalization of the nanoparticle in cells by confocal microscopy and super-resolution dSTORM (direct stochastic optical reconstruction microscopy; see figure).

  18. Full Papers

    1. TEMPO-Oxidized Cellulose Cross-Linked with Branched Polyethyleneimine: Nanostructured Adsorbent Sponges for Water Remediation

      Dr. Lucio Melone, Dr. Bianca Rossi, Dr. Nadia Pastori, Walter Panzeri, Prof. Andrea Mele and Prof. Carlo Punta

      Article first published online: 5 JUN 2015 | DOI: 10.1002/cplu.201500145

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      Spongy is better: Organic pollutants and heavy-metal ions can be removed from aqueous solutions effectively using nanostructured adsorbent sponges obtained from TEMPO-oxidized cellulose nanofibers (TOCNF) and branched polyethyleneimine (bPEI; see figure). The high adsorption capability of the new sponges indicates their potential for water decontamination.

    2. Nickel-Containing Keggin-Type Polyoxometalates as Hydrogen Evolution Catalysts: Photochemical Structure–Activity Relationships

      Kim von Allmen, Dr. René Moré, Rafael Müller, Joaquín Soriano-López, Prof. Dr. Anthony Linden and Prof. Dr. Greta R. Patzke

      Article first published online: 3 JUN 2015 | DOI: 10.1002/cplu.201500074

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      Nickel for your POMs: A series of Keggin-type polyoxometalates (POMs; [Ni(OH2)XW11O39]n (X=P, Si, Ge) were tested for catalytic activity in visible-light-driven hydrogen evolution without co-catalysts. The photocatalytic activity of the nickel POMs can be tuned through heteroatom X. The highest turnover number among the series was found for the germanium-containing POM (see figure).

    3. Definitive Insight into the Graphite Oxide Reduction Mechanism by Deuterium Labeling

      Ondřej Jankovský, Petr Šimek, Jan Luxa, Prof. David Sedmidubský, Dr. Ivo Tomandl, Dr. Anna Macková, Romana Mikšová, Dr. Petr Malinský, Prof. Martin Pumera and Prof. Zdeněk Sofer

      Article first published online: 26 MAY 2015 | DOI: 10.1002/cplu.201500168

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      Unraveling reduction: The mechanism of graphite oxide reduction is resolved by analyzing complex deuterides and hydrides. Reduction leads to the formation of hydroxy groups with simultaneous hydrogenation of reduced carbon atoms (see figure).

    4. A Superhydrophobic Sponge with Hierarchical Structure as an Efficient and Recyclable Oil Absorbent

      Qin Liu, Kai Meng, Kui Ding and Prof. Yaobing Wang

      Article first published online: 26 MAY 2015 | DOI: 10.1002/cplu.201500109

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      Quick cleanup! When a melamine sponge was coated with polyaniline and then immersed in n-dodecylthiol, it became superhydrophobic and suitable for oil absorption (see picture). The modified sponge absorbs a broad spectrum of oil and organics efficiently with high absorption capacity, and exhibits thermal stability and excellent mechanical stability.

  19. Communications

    1. Carbon Nanofibers as Advanced Pd Catalyst Supports for the Air Electrode of Alkaline Metal–Air Batteries

      Dr. Cinthia Alegre, Esterina Modica, Dr. Carmelo Lo Vecchio, Dr. David Sebastián, Dr. María J. Lázaro, Dr. Antonino S. Aricò and Dr. Vincenzo Baglio

      Article first published online: 26 MAY 2015 | DOI: 10.1002/cplu.201500120

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      Energy storage and conversion: Carbon nanofibers (CNFs) have been used as a support for Pd nanoparticles and were applied as air electrodes for alkaline metal–air batteries. Their performance toward the oxygen reduction reaction and the oxygen evolution reaction were investigated. CNFs prove to be promising materials for these applications given their highly graphitic structure, which is responsible for the better stability of these materials compared with commercial supports.

  20. Full Papers

    1. Nanoconfined Solvothermal Synthesis and Characterization of Ultrafine Cu2NiSnS4 Nanotubes

      Prof. Liang Shi, Yanan Li and Prof. Renkui Zheng

      Article first published online: 21 MAY 2015 | DOI: 10.1002/cplu.201500148

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      Ultrafine Cu2NiSnS4 nanotubes with an average diameter of 4 nm have been synthesized through a simple strategy using a nanoconfined solvothermal solution within anodic aluminum oxide pores. The as-prepared nanotubes have a preferential growth direction of <100> (see figure).

    2. Synthesis, Crystal Structures, and Magnetic and Catalytic Studies on a Linear Trinuclear MnII3 Complex

      Arpan Dutta, Dr. Surajit Biswas, Prof. Albert Escuer, Malay Dolai, Subhadip Ghosh and Prof. Mahammad Ali

      Article first published online: 20 MAY 2015 | DOI: 10.1002/cplu.201500090

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      The straight and narrow: The structurally characterized linear trinuclear manganese(II) complex [Mn3(L)(N3)4]2 H2O (see figure) catalyzed the epoxidation of olefins with tert-butylhydroperoxide with a turnover number (TON) greater than 950 and was found to be ferromagnetically coupled with J1=+1.84(1) cm−1.

    3. Self-Supporting Metal Nanotube Networks Obtained by Highly Conformal Electroless Plating

      Dr. Falk Muench, Dario M. De Carolis, Eva-Maria Felix, Dr. Joachim Brötz, Ulrike Kunz, Prof. Hans-Joachim Kleebe, Prof. Sevda Ayata, Prof. Christina Trautmann and Prof. Wolfgang Ensinger

      Article first published online: 12 MAY 2015 | DOI: 10.1002/cplu.201500073

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      Ordered nano-superstructures: When polymer templates containing pore networks are subjected to specifically optimized electroless plating reactions, self-supporting arrays of cross-linked metal nanotubes are obtained (see figure). Due to their well-defined structure, high surface area, and porosity, these materials are promising unsupported catalysts; this is demonstrated in the amperometric detection of hydrogen peroxide.

  21. Communications

    1. Glycosaminoglycan-Assisted Self-Assembly of Nanostructured Conducting Poly(3,4-ethylenedioxy thiophene) having Enhanced Osteogenic Bioactivity

      Jian Hao, Dr. Zhe Piao, Jin Yao and Zhao Hao

      Article first published online: 5 MAY 2015 | DOI: 10.1002/cplu.201500147

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      What′s the gag? Glycosaminoglycans (GAGs), the major organic extracellular matrix components, have been employed to assist self-assembly of nanostructured poly(3,4-ethylenedioxythiophene) (PEDOT) by template-free electrochemical polymerization (see figure). The sustainable nature of GAG-assisted nanofabrication was supported through enhanced osteogenic bioactivity.

  22. Full Papers

    1. Magnetic Dextran Nanoparticles That Bear Hydrophilic Porphyrin Derivatives: Bimodal Agents for Potential Application in Photodynamic Therapy

      Dr. Jean-Pierre Mbakidi, Dr. Frédérique Brégier, Dr. Tan-Sothea Ouk, Dr. Robert Granet, Dr. Sandra Alves, Dr. Eric Rivière, Dr. Sylviane Chevreux, Prof. Gilles Lemercier and Prof. Vincent Sol

      Article first published online: 5 MAY 2015 | DOI: 10.1002/cplu.201500087

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      A photodynamic finish: This study reports the chemical synthesis of a class of dextran superparamagnetic nanoparticles that bear porphyrin units covalently grafted by a click chemistry reaction (see figure). The uptake and therapeutic potential for photodynamic therapy of these nanoparticles has been evaluated in vitro against the HaCaT cell line.

    2. Volatile Heterobimetallic Complexes from PdII and CuII β-Diketonates: Structure, Magnetic Anisotropy, and Thermal Properties Related to the Chemical Vapor Deposition of Cu[BOND]Pd Thin Films

      Dr. Vladislav V. Krisyuk, Dr. Iraida A. Baidina, Dr. Asiya E. Turgambaeva, Prof. Vladimir A. Nadolinny, Prof. Svetlana G. Kozlova, Dr. Ilya V. Korolkov, Dr. Thomas Duguet, Dr. Constantin Vahlas and Prof. Igor K. Igumenov

      Article first published online: 4 MAY 2015 | DOI: 10.1002/cplu.201500050

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      Making a chain: Linking metal β-diketonates to form a heterometallic linear coordination polymer resulted in the convenient, scalable synthesis of a new family of volatile heterometallic compounds. Their properties are tuned by the rational design of the ligand structure and matching of central atoms. A Cu[BOND]Pd complex of this type (see figure) is volatile and can be a promising precursor for bimetallic alloy films prepared by chemical vapor deposition.

    3. Improved Photocurrents for Water Oxidation by Using Metal–Organic Framework Derived Hybrid Porous Co3O4@Carbon/BiVO4 as a Photoanode

      Chun-Chao Hou, Ting-Ting Li, Prof. Dr. Yong Chen and Prof. Dr. Wen-Fu Fu

      Article first published online: 29 APR 2015 | DOI: 10.1002/cplu.201500058

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      Don’t look beyond the surface! A highly porous Co3O4@carbon/BiVO4 photoanode is obtained by a facile metal–organic framework templated synthesis route. This photoanode can effectively suppress interfacial electron–hole recombination for water oxidation (see figure).

    4. Titanium Dioxide/Graphene Oxide Nanocomposites as Heterogeneous Catalysts for the Esterification of Benzoic Acid with Dimethyl Carbonate

      Durairaj Santhakumar Ruby Josephine, Balasubramanian Sakthivel, Prof. Kunjithapatham Sethuraman and Prof. Amarajothi Dhakshinamoorthy

      Article first published online: 27 APR 2015 | DOI: 10.1002/cplu.201500080

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      Cat. performance: Different loadings of titanium dioxide nanoparticles on sheets of graphene oxide (GO) provided a series of TiO2/GO nanocomposites and their activity was evaluated for the esterification of benzoic acid using dimethyl carbonate as a green methylating agent. The catalytic activity of the 5 wt % TiO2/GO nanocomposite was superior to that of GO, TiO2, and TiO2 on other supports.

    5. Nanoflake-Modulated La2Se3 Thin Films Prepared for an Asymmetric Supercapacitor Device

      Swati J. Patil, Ravindra N. Bulakhe and Prof. Chandrakant D. Lokhande

      Article first published online: 27 APR 2015 | DOI: 10.1002/cplu.201500009

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      Flaking out: La2Se3 nanoflakes were prepared from an aqueous medium by means of a chemical-bath deposition method and then used as a supercapacitor electrode (see figure). An asymmetric supercapacitor device based on the La2Se3 electrode in aqueous electrolyte exhibited good specific capacitance, excellent charge/discharge properties, and superior long-term cycling stability.

  23. Communications

    1. Reactive Sputtering of Plasmonic Pt/ZnO Films for Decomposition of Gas-Phase Methanol under Visible Light

      Prof. Hongjun Wu, Yue Ma, Yang Wang, Yang Gao, Dandan Yuan and Prof. Zhonghai Zhang

      Article first published online: 11 SEP 2014 | DOI: 10.1002/cplu.201402175

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      Plasmon resonance: Photocatalytic films of ZnO coated with ultrathin (2 nm) Pt (see figure) are prepared by a sputtering method, and the Pt/ZnO films show an efficient visible-light photoresponse for the decomposition of gas-phase methanol owing to the unique surface plasmon resonance of the Pt film.

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