ChemPlusChem

Cover image for Vol. 78 Issue 5

May 2013

Volume 78, Issue 5

Pages 383–466

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Communications
    8. Full Papers
    1. You have free access to this content
      Cover Picture: Surfactant Capsules Propel Interfacial Oil Droplets: An Environmental Cleanup Strategy (ChemPlusChem 5/2013) (page 383)

      Tzu Hui Seah, Guanjia Zhao and Prof. Martin Pumera

      Article first published online: 10 MAY 2013 | DOI: 10.1002/cplu.201390018

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      The cover picture shows a beautiful Indonesian coral reef. The inset is of a millimetre-sized capsule designed to clean up oil spills from environmental waters. Such capsules move as a result of the Marangoni effect. Martin Pumera and co-workers outline cleaning of oil droplets with these self-propelled artificial capsules in their Communication on page 395 ff. They study the influence of different cleaning agents (that is, surfactants) on the removal of oil from a water/air interface.

  2. Cover Profile

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Communications
    8. Full Papers
    1. You have free access to this content
      Surfactant Capsules Propel Interfacial Oil Droplets: An Environmental Cleanup Strategy (page 384)

      Tzu Hui Seah, Guanjia Zhao and Prof. Martin Pumera

      Article first published online: 16 APR 2013 | DOI: 10.1002/cplu.201300081

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      Our group is interested in finding out how things work and why they work the way they do.” This and more about the story behind the front cover research can be found on p. 395.

  3. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
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    8. Full Papers
    1. Graphical Abstract: ChemPlusChem 5/2013 (pages 385–390)

      Article first published online: 10 MAY 2013 | DOI: 10.1002/cplu.201390019

  4. Masthead

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
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    8. Full Papers
    1. Masthead: ChemPlusChem 5/2013 (page 391)

      Article first published online: 10 MAY 2013 | DOI: 10.1002/cplu.201390020

  5. News

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
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    1. Spotlights on our sister journals: ChemPlusChem 5/2013 (pages 392–394)

      Article first published online: 10 MAY 2013 | DOI: 10.1002/cplu.201390021

  6. Communications

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Communications
    8. Full Papers
    1. Surfactant Capsules Propel Interfacial Oil Droplets: An Environmental Cleanup Strategy (pages 395–397)

      Tzu Hui Seah, Guanjia Zhao and Prof. Martin Pumera

      Article first published online: 1 MAR 2013 | DOI: 10.1002/cplu.201300011

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      Coming clean: Polymer capsules of millimeter dimensions have been loaded with surfactants of negative, positive, or neutral charge, and their influence on the movement of oil droplets at the water/air interface was compared. Release of surfactant molecules from the capsule affects the surface tension γ and pulling force F (see figure) such that an oil droplet moves away from the polymer micromotor.

    2. UV-Photoelectron Spectroscopy of a Tetrakis(trimethylsilyl)tetrahedrane and Its Pentafluorophenyl Derivative (pages 398–401)

      Prof. Dr. Anna Chrostowska, Prof. Alain Dargelos, Patrick Baylère, Prof. Alain Graciaa, Yusuke Inagaki, Dr. Masaaki Nakamoto, Dr. Vladimir Ya. Lee and Prof. Dr. Akira Sekiguchi

      Article first published online: 3 APR 2013 | DOI: 10.1002/cplu.201300044

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      Strained cages: UV-photoelectron spectroscopy studies of tetrakis(trimethylsilyl)tetrahedrane and its pentafluorophenyl derivative (see figure) demonstrate the effectiveness of the neutral hyperconjugation in the latter, which was initially proposed on the basis of electronic spectra and computational data.

    3. COK-16: A Cation-Exchanging Metal–Organic Framework Hybrid (pages 402–406)

      Dr. Sneha R. Bajpe, Dr. Eric Breynaert, Ana Martin-Calvo, Dr. Danilo Mustafa, Prof. Sofia Calero, Prof. Christine E. A. Kirschhock and Prof. Johan A. Martens

      Article first published online: 3 APR 2013 | DOI: 10.1002/cplu.201300080

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      X-ray spectroscopy: Substoichiometric encapsulation of polyoxometalate ions into a metal–organic framework results in a fully functional cation exchanger with accessible porosity. Cu2+ cations compensating the charge of [PW12O40]3− in the as-synthesized material can be exchanged with cations such as Na+ and Eu3+. When exchanged with Eu3+, the material appears bright red under UV irradiation (see figure).

  7. Full Papers

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Communications
    8. Full Papers
    1. Intensive Protein Digestion Using Cross-Linked Trypsin Aggregates in Proteomics Analysis (pages 407–412)

      Dr. Meng-Fan Wang, Yang-Yang Mu, Prof. Dr. Wei Qi, Dr. Rong-Xin Su and Prof. Dr. Zhi-Min He

      Article first published online: 19 MAR 2013 | DOI: 10.1002/cplu.201200323

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      Easy to swallow: Cross-linked enzyme aggregates of tissue-culture-grade trypsin (CLEAs-T) were prepared and introduced to the protein-digestion process in proteomics analysis (see figure). High-analysis throughput was obtained by using CLEAs-T with intensive digestion strategies, such as high enzyme concentration, high temperature, and ultrasound-assisted. The excellent performance of CLEAs-T is attributed to their unique “scaffoldlike” structure.

    2. Acid-Induced Degradation and Ancillary Ligand Replacement of Biscyclometalated Iridium(III) Complexes (pages 413–418)

      Yuyang Zhou, Dr. Wanfei Li, Dr. Yang Liu and Prof. Dr. Ming Zhou

      Article first published online: 3 APR 2013 | DOI: 10.1002/cplu.201300009

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      Remaining solvent: Three biscyclometalated iridium(III) complexes with three different ancillary ligands are investigated with respect to the final products of acid-induced transformation in coordinating or non-coordinating solvents (see picture). Although coexistence of the solvento complex and dichloro-bridged iridium(III) dimer is observed under certain conditions, the conversion of the solvento complex into the dichloro-bridged iridium(III) dimer is seen.

    3. Hydrodesulfurization of Thiophene over Few-Layer MoS2 Covered with Cobalt and Nickel Nanoparticles (pages 419–422)

      Bolla Govinda Rao, Dr. H. S. S. Ramakrishna Matte, Piyush Chaturbedy and Prof. C. N. R. Rao

      Article first published online: 28 MAR 2013 | DOI: 10.1002/cplu.201300012

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      Less is more: Hydrodesulfurization of thiophene has been carried out using graphene-like few-layer MoS2 with conversion of approximately 64 %. Further conversion was enhanced to 98 % when Co or Ni nanoparticles covered the surface of MoS2 (see figure).

    4. Polyethyleneimine/Manganese-Doped ZnS Nanocomposites: A Multifunctional Probe for Two-Color Imaging and Three-Dimensional Sensing (pages 423–429)

      Li-Jia Sang, Ye-Yu Wu and Dr. He-Fang Wang

      Article first published online: 28 MAR 2013 | DOI: 10.1002/cplu.201300049

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      Positive discrimination: Polyethyleneimine (PEI)/Mn[BOND]ZnS nanocomposites, with two unique individually excited and orthogonal emissions at λ=495 and 585 nm, allow two-color imaging of the same space just by changing the excitation wavelength in situ, and enable the discrimination of eight proteins by recording three-channel optical signals of a single probe (see picture).

    5. Bioorthogonal Chemical Handle for Tracking Multifunctional Nanoparticles (pages 430–437)

      Dr. Sascha N. Goonewardena, Dr. Hong Zong, Dr. Pascale R. Leroueil and Prof. James R. Baker Jr.

      Article first published online: 3 APR 2013 | DOI: 10.1002/cplu.201300007

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      Getting a handle on it: An innovative strategy for tracking multifunctional nanoparticles in biological systems is presented that simplifies the syntheses and can be used to track the nanoparticles in vitro and in vivo. The strategy is based on in situ click chemistry ligation of fluorescent reporters to the nanoparticle scaffold through copper-catalyzed azide–alkyne cycloaddition (see figure).

    6. Insight into the Luminescence Behavior of Europium(III) β-Diketonate Complexes Encapsulated in Zeolite L Crystals (pages 438–442)

      Tingting Wen, Prof. Wenjun Zhang, Xuejun Hu, Liang He and Prof. Huanrong Li

      Article first published online: 28 MAR 2013 | DOI: 10.1002/cplu.201300073

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      An acid test: The acidity in channels of Eu3+-exchanged zeolite L (ZL) crystals has been investigated and its influence on the luminescence properties of host–guest materials with europium(III) β-diketonate complexes has been studied. Materials containing 2-thenoyltrifluoroacetone (tta) in the channels can be used to detect ammonia (see figure).

    7. Postsynthetic Modification of a Metal–Organic Framework (MOF) Structure for Enantioselective Catalytic Epoxidation (pages 443–450)

      Dr. Natalia Candu, Dr. Mădălina Tudorache, Dr. Mihaela Florea, Dr. Elena Ilyes, Dr. Florin Vasiliu, Ionel Mercioniu, Prof. Dr. Simona M. Coman, Prof. Dr. Ionel Haiduc, Prof. Dr. Marius Andruh and Prof. Dr. Vasile I. Pârvulescu

      Article first published online: 5 APR 2013 | DOI: 10.1002/cplu.201300076

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      Transformed and ready for action! Postsynthetic modification of [Cu2(mand)2(hmt)] (mand=mandelic acid, hmt=hexamethylenetetramine) results in an effective catalyst (see picture) for the enantioselective epoxidation of trans-methyl cinnamate to provide methyl (2R,3S)-phenylglycidate with a high ee value at room temperature.

    8. The Preparation and Characterization of a Laccase Nanogel and Its Application in Naphthoquinone Synthesis (pages 451–458)

      Dr. Honghua Jia, Chao Zhong, Fan Huang, Chunming Wang, Lisha Jia, Dr. Hua Zhou and Dr. Ping Wei

      Article first published online: 4 APR 2013 | DOI: 10.1002/cplu.201300066

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      It′s a wrap: The amino groups of lysine in laccase were modified with N-acryloxysuccinimide (NAS). Acrylamide was then added to the modified laccase molecule through hydrogen bonds to form a modified-laccase molecule–acrylamide assembly, followed by polymerization in situ through addition of ammonium persulfate (APS) and tetramethylethylenediamine (TEMED) to produce a laccase nanogel encapsulated in polyacrylamide (see scheme).

    9. Electronic Properties and Field-Effect Transistors of Oligomers End-Capped with Benzofuran Moieties (pages 459–466)

      Dr. Charlotte Mallet, Dr. Yahia Didane, Dr. Takeshi Watanabe, Dr. Noriyuki Yoshimoto, Magali Allain, Dr. Christine Videlot-Ackermann and Prof. Pierre Frère

      Article first published online: 4 APR 2013 | DOI: 10.1002/cplu.201300037

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      If the cap fits: A series of three oligomers bearing furan, thiophene, or bithiophene units end-capped by benzofuran moieties have been synthesized and studied with respect to their structural, optical, electrochemical, and electrical properties (see figure). Thin films are used as p-type semiconducting layers in organic field-effect transistors (OFETs).

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