ChemPhysChem

Cover image for Vol. 14 Issue 10

Special Issue: Photo- and Bioelectrochemistry

July 22, 2013

Volume 14, Issue 10

Pages 2005–2347

  1. Cover Pictures

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. You have free access to this content
      Cover Picture: Tailoring Copper Oxide Semiconductor Nanorod Arrays for Photoelectrochemical Reduction of Carbon Dioxide to Methanol (ChemPhysChem 10/2013) (page 2005)

      Prof. Krishnan Rajeshwar, Dr. Norma R. de Tacconi, Ghazaleh Ghadimkhani, Dr. Wilaiwan Chanmanee and Dr. Csaba Janáky

      Version of Record online: 25 JUL 2013 | DOI: 10.1002/cphc.201390046

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      CuO/Cu2O hybrid nanorod arrays are prepared on a Cu substrate by K. Rajeshwar, N. R. de Tacconi et al. (p. 2251). The procedure involves the initial thermal growth of CuO nanorods followed by controlled electrodeposition of p-type Cu2O crystallites on their walls. Photoelectrosynthesis of methanol from CO2 is conducted under simulated solar irradiation at Faradaic efficiencies up to 95%. The hybrid nanoarchitectures, ensuring a double pathway for photoelectron injection to CO2, along with the high surface area are key to the excellent performance of these films.

    2. You have free access to this content
      Inside Cover: A Chemical Lift-off Process: Removing Non-Specific Adsorption in an Electrochemical Epstein–Barr Virus Immunoassay (ChemPhysChem 10/2013) (page 2006)

      Lutz Stratmann, Dr. Magdalena Gebala and Prof. Wolfgang Schuhmann

      Version of Record online: 25 JUL 2013 | DOI: 10.1002/cphc.201390047

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      An ester group containing a self-assembled monolayer is used by W. Schuhmann et al. in an electrochemical Epstein–Barr virus immunoassay with native recombinant antigens and electrochemical readout (p. 2198).

  2. Editorial

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. You have free access to this content
      Editorial: From Fundamental Science to Product Development: An Electrochemical Paradigm (pages 2007–2008)

      Prof. Dr. Woonsup Shin and Prof. Dr. Christian Amatore

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/cphc.201300566

  3. Graphical Abstract

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
  4. Editors' Selection

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
  5. News

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Electrochemistry′s Everywhere! (page 2031)

      Version of Record online: 25 JUL 2013 | DOI: 10.1002/cphc.201300618

  6. Review

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Continuous Glucose Monitoring: 40 Years, What We′ve Learned and What’s Next (pages 2032–2044)

      Dr. Raeann Gifford

      Version of Record online: 6 MAY 2013 | DOI: 10.1002/cphc.201300172

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      How sweet it is: Continuous glucose monitoring (CGM) is demonstrating the benefit it provides for millions with diabetes, and the information obtained from these systems reveals the impact of glucose variation on patient health. The various methods available for CGM are discussed, as is their impact on the quality of life of patients using these devices. Future possibilities and developments in this area are also surveyed.

  7. Minireviews

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Biofuel Cells for Biomedical Applications: Colonizing the Animal Kingdom (pages 2045–2058)

      Magnus Falk, Claudia W. Narváez Villarrubia, Dr. Sofia Babanova, Prof. Plamen Atanassov and Prof. Dr. Sergey Shleev

      Version of Record online: 4 MAR 2013 | DOI: 10.1002/cphc.201300044

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      The cyborgs are coming! Implantable fuel cells operating inside living organisms have been envisioned for over fifty years. However, the first report on an implanted biofuel cell was published only in 2003 by Heller et al. The last years have seen a multitude of biodevices being implanted and studied in different living organisms, including animals. This is reviewed herein and further perspectives for biomedical applications of biofuel cells are highlighted.

    2. On the Similarity and Dissimilarity between Photocatalytic Water Splitting and Photocatalytic Degradation of Pollutants (pages 2059–2070)

      Sagi Pasternak and Prof. Yaron Paz

      Version of Record online: 10 JUN 2013 | DOI: 10.1002/cphc.201300247

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      Similarity or dissimilarity: The apparent similarity between photocatalytic water splitting and photocatalytic degradation of pollutants raises the question regarding the extent to which one may utilize knowledge obtained in one field for the benefit of the other (see picture). The common features and differences between the two areas are examined.

    3. X-Ray Photoelectron Spectroscopy for Characterization of Bionanocomposite Functional Materials for Energy-Harvesting Technologies (pages 2071–2080)

      Dr. Kateryna Artyushkova and Prof. Plamen Atanassov

      Version of Record online: 22 MAY 2013 | DOI: 10.1002/cphc.201300037

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      See beneath the surface! Surface analysis of biologically relevant composites leads to an improved understanding of the chemistry of nanocomposite constituents and the interactions between them (see picture).

  8. Essay

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Wired Enzyme Electrodes—A Retroperspective Story about an Exciting Time at University of Texas at Austin and Its Impact on My Scientific Career (pages 2081–2088)

      Prof. Dr. Sten-Eric Lindquist

      Version of Record online: 15 APR 2013 | DOI: 10.1002/cphc.201300043

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      Lucky times! This essay features an exciting time in the late 1980s, when the in vivo redox-polymer-wired glucose sensor was developed at Professor Adam Heller's laboratory. Among other things, the author nicely describes this “serendipitous” early-morning discovery. The picture shows a watercolor portrait of Adam Heller, painted by the author as he remembers him at that time (based on a photo from the University of Texas at Austin Experts Guide).

  9. Communications

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Chemiluminescence from Asymmetric Inorganic Surface Layers Generated by Bipolar Electrochemistry (pages 2089–2093)

      Zahra Fattah, Dr. Jérome Roche, Patrick Garrigue, Dr. Dodzi Zigah, Dr. Laurent Bouffier and Prof. Alexander Kuhn

      Version of Record online: 7 MAR 2013 | DOI: 10.1002/cphc.201300068

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      Blue light on a Janus rod: Prussian Blue (PB) is locally generated in an asymmetric way on a graphite rod by indirect bipolar electrodeposition (IBED). The presence of this inorganic layer efficiently promotes luminol chemiluminescence, which is revealed by an emission of blue light at one end of the Janus object.

    2. Application of Boron-Doped Diamond Microelectrodes for Dental Treatment with Pinpoint Ozone-Water Production (pages 2094–2096)

      Dr. Tsuyoshi Ochiai, Yuya Ishii, Shoko Tago, Dr. Masayuki Hara, Takuya Sato, Prof. Dr. Kazuo Hirota, Dr. Kazuya Nakata, Taketoshi Murakami, Prof. Dr. Yasuaki Einaga and Prof. Dr. Akira Fujishima

      Version of Record online: 30 NOV 2012 | DOI: 10.1002/cphc.201200845

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      Diamonds for shiny teeth: A novel pinpoint ozone-water production unit for dental treatment using boron-doped diamond (BDD) microelectrodes is developed (see picture). The superiority of such BDD microelectrodes over simple and easy-to-handle units, in terms of the larger activities for ozone production and disinfection, is demonstrated.

    3. Design of a Highly Efficient O2 Cathode Based on Bilirubin Oxidase from Magnaporthe oryzae (pages 2097–2100)

      Marine Cadet, Xavier Brilland, Sébastien Gounel, Dr. Frédéric Louerat and Dr. Nicolas Mano

      Version of Record online: 7 FEB 2013 | DOI: 10.1002/cphc.201300027

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      Fungi for the better: The so far highest known current density (1.37 mA cm−2) for the enzymatic O2 reduction under physiological conditions is reported. This is achieved by the design of a new redox polymer with an increased catalytic site density and by using a new bilirubin oxidase (BOD) from Magnaporthe oryzae.

  10. Articles

    1. Top of page
    2. Cover Pictures
    3. Editorial
    4. Graphical Abstract
    5. Editors' Selection
    6. News
    7. Review
    8. Minireviews
    9. Essay
    10. Communications
    11. Articles
    1. Electrochemistry of Single Metalloprotein and DNA-Based Molecules at Au(111) Electrode Surfaces (pages 2101–2111)

      Dr. Princia Salvatore, Dr. Dongdong Zeng, Dr. Kasper K. Karlsen, Prof. Qijin Chi, Prof. Jesper Wengel and Prof. Jens Ulstrup

      Version of Record online: 20 JUN 2013 | DOI: 10.1002/cphc.201300299

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      Recent efforts in the electrochemistry of single transition-metal-complex, redox-metalloprotein, and redox-marked oligonucleotide (ON) molecules are discussed. Self-assembled monolayers of ONs immobilized on Au(111) electrode surfaces are studied by a combination of nucleic acid chemistry, electrochemistry and electrochemically controlled scanning tunneling microscopy (in situ STM).

    2. Direct Bio-electrocatalysis of O2 Reduction by Streptomyces coelicolor Laccase Orientated at Promoter-Modified Graphite Electrodes (pages 2112–2124)

      Samuel Lörcher, Dr. Paula Lopes, Andrey Kartashov and Prof. Elena E. Ferapontova

      Version of Record online: 15 APR 2013 | DOI: 10.1002/cphc.201300069

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      Taking up the SLAC: Bacterial laccase from Streptomyces coelicolor (SLAC) immobilized at promoter-modified electrodes allows observation of both direct electron-transfer reactions between the T1 and T2/T3 centers of SLAC and the electrodes and direct bio-electrocatalysis of O2 reduction in basic media, including sea water (see picture). The SLAC-modified electrodes are promising candidates for environmental energy transformation.

    3. New Deposition Technique for Metal Films Containing Inorganic Fullerene-Like (IF) Nanoparticles (pages 2125–2131)

      Ohad Goldbart, Dr. Alexander Yoffe, Dr. Sidney R. Cohen, Dr. Rita Rosentsveig, Dr. Yishay Feldman, Prof. Lev Rapoport and Prof. Reshef Tenne

      Version of Record online: 6 MAY 2013 | DOI: 10.1002/cphc.201201003

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      A new method for fabrication of thin composite films using physical vapor deposition (PVD) is described. Titanium (Ti) and hybrid films of titanium containing tungsten disulphide nanoparticles with inorganic fullerene-like structure (Ti/IF-WS2) are fabricated (see picture). The Ti/IF-WS2 shows better wear resistance and a lower friction coefficient when compared to the Ti layer or Ti substrate.

    4. Electrochemical Oxygen Reduction Behavior of Selectively Deposited Platinum Atoms on Gold Nanoparticles (pages 2132–2142)

      Dr. A. Sarkar, Dr. J. B. Kerr and Prof. E. J. Cairns

      Version of Record online: 15 MAR 2013 | DOI: 10.1002/cphc.201200917

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      Two or four at a time? A new redox-mediated synthetic method for the selective deposition of platinum atoms on pre-fabricated gold nanoparticles is presented along with their oxygen reduction activity. The electrochemical data suggest that individual platinum atoms can reduce oxygen but via a two-electron pathway. For successful four-electron reduction to water, clusters of platinum atoms are required.

    5. You have full text access to this OnlineOpen article
      Investigation of Sickle-Cell Haemoglobin Polymerisation under Electrochemical Control (pages 2143–2148)

      Dr. Zeshan Iqbal, Matthew Li, Dr. Rachel McKendry, Prof. Michael Horton and Dr. Daren J. Caruana

      Version of Record online: 23 MAY 2013 | DOI: 10.1002/cphc.201300203

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      Electrochemical protein polymerisation: Sickle-cell haemoglobin has a tendency to form stiff protein fibres at low oxygen partial pressures. Here we use an electrochemical cell to deplete oxygen in a small-volume cell and monitor the polymerisation under different chemical and physical conditions.

    6. Layer-by-Layer Assembly of Ferrocene-Modified Linear Polyethylenimine Redox Polymer Films (pages 2149–2158)

      Jared L. DeLuca, David P. Hickey, Daniel A. Bamper, Prof. Dr. Daniel T. Glatzhofer, Prof. Dr. Matthew B. Johnson and Prof. Dr. David W. Schmidtke

      Version of Record online: 27 MAY 2013 | DOI: 10.1002/cphc.201300146

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      Electrostatic or covalent assembly: Self-assembled multilayer films containing a novel ferrocene redox polymer (Fc-C6-LPEI) are electrostatically assembled with polyanionic electrolytes, such as poly(glutamic acid) or poly(acrylic acid), and covalently assembled with periodate treated glucose oxidase.

    7. Extracellular Electron Transfer across Bacterial Cell Membranes via a Cytocompatible Redox-Active Polymer (pages 2159–2163)

      Koichi Nishio, Dr. Ryuhei Nakamura, Xiaojie Lin, Dr. Tomohiro Konno, Prof. Dr. Kazuhiko Ishihara, Dr. Shuji Nakanishi and Prof. Dr. Kazuhito Hashimoto

      Version of Record online: 29 APR 2013 | DOI: 10.1002/cphc.201300117

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      Biocompatible electron shuttle: A redox-active phospholipid polymer with a phospholipid-mimicking structure is synthesized to construct a biocompatible electron mediator between bacteria and an electrode.

    8. Eletrochemically Actuated Stop–Go Valves for Capillary Force-Operated Diagnostic Microsystems (pages 2164–2173)

      Alemayehu P. Washe, Dr. Pablo Lozano, Diego Bejarano and Dr. Ioanis Katakis

      Version of Record online: 16 APR 2013 | DOI: 10.1002/cphc.201300042

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      Nanoporous graphitic carbon electrodes display a unique electrowetting behavior that depends on specific ion effects. When incorporated into a microfluidic channel, these superhydrophobic electrodes facilitate sequential stop–go fluidic operations, which are directly applicable to diagnostic microsystems.

    9. Ultrafast Dynamics of Photogenerated Electrons in CdS Nanocluster Multilayers Assembled on Solid Substrates: Effects of Assembly and Electrode Potential (pages 2174–2182)

      Prof. Dr. Ichizo Yagi, Kensuke Mikami, Dr. Masayuki Okamura and Prof. Dr. Kohei Uosaki

      Version of Record online: 10 JUL 2013 | DOI: 10.1002/cphc.201300427

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      The spatial density of semiconductor nanoparticles drastically affects the ultrafast dynamics of photoexcited electrons in CdS nanoparticles. Additional effects of the electrochemical potential on the picosecond dynamics are also monitored.

    10. Protein Resistance of Surfaces Modified with Oligo(Ethylene Glycol) Aryl Diazonium Derivatives (pages 2183–2189)

      Dr. Callie Fairman, Joshua Z. Ginges, Dr. Stuart B. Lowe and Prof. J. Justin Gooding

      Version of Record online: 6 MAY 2013 | DOI: 10.1002/cphc.201300040

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      Surface modification for protein resistance: Oligo(ethylene glycol) aryl diazonium derivatives electrochemically deposited on carbon and gold surfaces reduce non-specific protein adsorption (see picture). The influence of ligand length, distal end group, and ligand packing density on protein resistance is investigated. This approach could be used to produce stable antifouling layers for electrochemical biosensors.

    11. The Influence of Organic-Film Morphology on the Efficient Electron Transfer at Passivated Polymer-Modified Electrodes to which Nanoparticles are Attached (pages 2190–2197)

      Abbas Barfidokht, Dr. Simone Ciampi, Dr. Erwann Luais, Dr. Nadim Darwish and Prof. J. Justin Gooding

      Version of Record online: 12 APR 2013 | DOI: 10.1002/cphc.201300047

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      The impact of polymer-film morphology on the electron-transfer process at electrode/organic insulator/nanomaterial architectures is studied. The comparative study of two different organic films, poly(phenylenediamine) and poly(ethylenediamine), reveals that the uniformity of the organic film plays an important role in efficient nanoparticle-mediated electron transfer.

    12. A Chemical Lift-off Process: Removing Non-Specific Adsorption in an Electrochemical Epstein–Barr Virus Immunoassay (pages 2198–2207)

      Lutz Stratmann, Dr. Magdalena Gebala and Prof. Wolfgang Schuhmann

      Version of Record online: 16 MAY 2013 | DOI: 10.1002/cphc.201300029

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      The anti-protein lift-off: An ester group containing a self-assembled monolayer is used in an electrochemical Epstein–Barr virus immunoassay with native recombinant antigens and electrochemical readout. The electrode interface is adapted to microstructuring using scanning electrochemical microscopy. A chemical lift-off process based on the hydrolysis of the ester groups is proposed to remove non-specifically adsorbed molecules.

    13. Kinetic and Thermodynamic Hysteresis Imposed by Intercalation of Proflavine in Ferrocene-Modified Double-Stranded DNA (pages 2208–2216)

      Dr. Magdalena Gebala, Dr. Fabio La Mantia and Prof. Dr. Wolfgang Schuhmann

      Version of Record online: 14 MAY 2013 | DOI: 10.1002/cphc.201300045

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      DNA-bound ferrocene (Fc) undergoes rapid electron transfer with the electrode surface, which is sensitive to the ion transport along the DNA strands—a phenomenon that is modulated upon specific intercalation of proflavine into double-stranded DNA (dsDNA). The electron-transfer rate of the Fc/Fc+ redox process is influenced by the cationic permselectivity of the DNA monolayer.

    14. Raman Spectroscopic Investigation on TiO2–N719 Dye Interfaces Using Ag@TiO2 Nanoparticles and Potential Correlation Strategies (pages 2217–2224)

      Zhi Qiu, Meng Zhang, Prof. De-Yin Wu, Dr. Song-Yuan Ding, Qi-Qi Zuo, Dr. Yi-Fan Huang, Wei Shen, Xiao-Dong Lin, Prof. Zhong-Qun Tian and Prof. Bing-Wei Mao

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/cphc.201300381

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      Surface studies: Ag@TiO2 core–shell nanoparticles enhance the surface Raman signals of N719 dye molecules adsorbed on the TiO2 shell. This allows electrochemical surface-enhanced Raman spectroscopic investigations of the Ag@TiO2–N719 interface under pre-resonance conditions. A bell-shaped intensity–potential relation for the major bands of N719 is observed.

    15. A His-Tagged Melanocarpus albomyces Laccase and its Electrochemistry upon Immobilisation on NTA-Modified Electrodes and in Conducting Polymer Films (pages 2225–2231)

      Dr. Maciej Sosna, Dr. Harry Boer and Prof. Philip N. Bartlett

      Version of Record online: 11 JUN 2013 | DOI: 10.1002/cphc.201300340

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      His-tagged Melanocarpus albomyces laccase is capable of mediatorless oxygen reduction when wired through conducting poly(aniline)/poly(vinylsulfonate). Only mediated electron transfer is possible for the N-terminus His-tagged enzyme immobilised on NTA-functionalised electrodes.

    16. Chitosan-Cross-linked Osmium Polymer Composites as an Efficient Platform for Electrochemical Biosensors (pages 2232–2236)

      Dr. Harishchandra Digambar Jirimali, Dr. Rajaram Krishna Nagarale, Dr. Jong Myung Lee, Dr. Durai Saravanakumar and Prof. Dr. Woonsup Shin

      Version of Record online: 14 MAY 2013 | DOI: 10.1002/cphc.201300169

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      Coated with pores: Dropcoating of randomly cross-linked poly(4-vinylpyridine) osmium bipyridyl and chitosan composites creates a hydrophilic porous (see picture) film on the electrode surface and shows reversible electron-transfer behavior up to 200 mV s−1 owing to the fast mass- and electron-transfer capabilities of the film. Oxidation of glucose by immobilization of glucose oxidase also shows enhanced electrocatalytic performance.

    17. A New Approach for the Simulation of Electrochemiluminescence (ECL) (pages 2237–2250)

      Dr. Oleksiy V. Klymenko, Dr. Irina Svir and Dr. Christian Amatore

      Version of Record online: 24 APR 2013 | DOI: 10.1002/cphc.201300126

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      Now you can predict even ECL: Fast and accurate prediction and treatment of electrochemiluminescence (ECL) reactions for any complex system is now possible owing to a new numerical approach implemented in KISSA software.

    18. Tailoring Copper Oxide Semiconductor Nanorod Arrays for Photoelectrochemical Reduction of Carbon Dioxide to Methanol (pages 2251–2259)

      Prof. Krishnan Rajeshwar, Dr. Norma R. de Tacconi, Ghazaleh Ghadimkhani, Dr. Wilaiwan Chanmanee and Dr. Csaba Janáky

      Version of Record online: 24 MAY 2013 | DOI: 10.1002/cphc.201300080

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      CO2 reduction: CuO/Cu2O hybrid nanorod arrays are prepared on a Cu substrate by a two-step strategy. Photoelectrosynthesis of methanol from CO2 is conducted under simulated solar irradiation at Faradaic efficiencies up to 95 %. The hybrid nanoarchitectures and the high surface area are likely contributors to the excellent performance of the film.

    19. Optimization of a Membraneless Glucose/Oxygen Enzymatic Fuel Cell Based on a Bioanode with High Coulombic Efficiency and Current Density (pages 2260–2269)

      Dr. Minling Shao, Dr. Muhammad Nadeem Zafar, Magnus Falk, Dr. Roland Ludwig, Christoph Sygmund, Dr. Clemens K. Peterbauer, Dr. Dmitrii A. Guschin, Domhnall MacAodha, Peter Ó Conghaile, Dr. Dónal Leech, Dr. Miguel D. Toscano, Dr. Sergey Shleev, Prof. Dr. Wolfgang Schuhmann and Prof. Dr. Lo Gorton

      Version of Record online: 8 APR 2013 | DOI: 10.1002/cphc.201300046

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      Bio is better: After initially testing and optimizing several anode biocatalysts, the authors fabricate and characterize a membraneless glucose/oxygen enzymatic biofuel cell that shows high coulombic efficiency and power output.

    20. Improvement of Solar Energy Conversion with Nb-Incorporated TiO2 Hierarchical Microspheres (pages 2270–2276)

      Son Hoang, Thong Q. Ngo, Sean P. Berglund, Raymond R. Fullon, Prof. John G. Ekerdt and Prof. C. Buddie Mullins

      Version of Record online: 19 MAR 2013 | DOI: 10.1002/cphc.201201092

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      Leading light: Niobium-modified TiO2 hierarchical microspheres are synthesized solvothermally and characterized for water photo-oxidation and dye-sensitized solar cell (DSSC) applications. DSSCs employing TiO2 and Nb-incorporated TiO2 hierarchical structures demonstrate improved light-harvesting efficiency, especially in the long-wavelength region (see picture; FTO=F-doped tin oxide).

    21. Unbiased Photoelectrochemical Water Splitting in Z-Scheme Device Using W/Mo-Doped BiVO4 and ZnxCd1−xSe (pages 2277–2287)

      Dr. Hyun S. Park, Dr. Heung Chan Lee, Dr. Kevin C. Leonard, Dr. Guanjie Liu and Prof. Dr. Allen J. Bard

      Version of Record online: 12 MAR 2013 | DOI: 10.1002/cphc.201201044

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      Water splitting to generate H2 and O2 using only photon energy (with no added electrical energy) is demonstrated with dual n-type-semiconductor (or Z-scheme) systems. The authors investigate two different Z-scheme systems; one is comprised of two cells with the same metal-oxide semiconductor, and the other is comprised of the metal oxide and a chalcogenide semiconductor.

    22. Microdialysis Sampling Coupled to Microchip Electrophoresis with Integrated Amperometric Detection on an All-Glass Substrate (pages 2288–2294)

      David E. Scott, Ryan J. Grigsby and Dr. Susan M. Lunte

      Version of Record online: 21 JUN 2013 | DOI: 10.1002/cphc.201300449

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      An online microdialysis–microchip electrophoresis system using integrated in-channel electrochemical detection with a platinum electrode is described. The ultimate goal is to use this chip in conjunction with a portable analysis system for the continuous monitoring of drugs and neurotransmitters in awake, freely roaming animals.

    23. Amperometric Measurements at Cells Support a Role for Dynamin in the Dilation of the Fusion Pore during Exocytosis (pages 2295–2301)

      Raphaël Trouillon and Andrew G. Ewing

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/cphc.201300319

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      Dynamic control of neuronal communication: Dynamin, a GTPase mechanochemical enzyme, is involved in the dilation of the fusion pore during exocytosis. It is suggested that its GTPase activity may induce the formation of a helix, facilitating the opening of the fusion nanotube.

    24. Membraneless Glucose/Oxygen Enzymatic Fuel Cells Using Redox Hydrogel Films Containing Carbon Nanotubes (pages 2302–2307)

      Domhnall MacAodha, Peter Ó Conghaile, Brenda Egan, Dr. Paul Kavanagh and Prof. Dónal Leech

      Version of Record online: 20 JUN 2013 | DOI: 10.1002/cphc.201300239

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      Power base: Co-immobilization of multiple blue copper oxygenases with an osmium-based redox polymer at graphite/multiwalled carbon nanotube electrodes gives enzyme electrodes for oxygen reduction. The maximum power density of a fuel cell with such electrodes decreases on going from buffer to artificial plasma (see figure), but provides the highest power output reported for a fully enzymatic glucose-oxidizing, oxygen-reducing fuel cell in plasma.

    25. Photoinduced Biphasic Hydrogen Evolution: Decamethylosmocene as a Light-Driven Electron Donor (pages 2308–2316)

      Peiyu Ge, Astrid J. Olaya, Dr. Micheál D. Scanlon, Dr. Imren Hatay Patir, Heron Vrubel and Prof. Hubert H. Girault

      Version of Record online: 17 MAY 2013 | DOI: 10.1002/cphc.201300122

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      A weak but productive donor: Mechanistic and kinetic insights into light-driven biphasic hydrogen evolution in the presence of the weak electron donor decamethylosmocene , which on white-light illumination produces an excited-state species that can reduce organically solubilized protons (see picture), are obtained by gas chromatographic, cyclic voltammetric, and UV/Vis and 1H NMR spectroscopic analysis.

    26. Series Circuit of Organic Thin-Film Solar Cells for Conversion of Water into Hydrogen (pages 2317–2320)

      Prof. Atsushi Aoki, Mitsuru Naruse and Prof. Takayuki Abe

      Version of Record online: 13 MAY 2013 | DOI: 10.1002/cphc.201300114

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      It takes six: A series circuit of organic thin-film solar cells (OSCs) is investigated for electrolyzing water to gaseous hydrogen and oxygen. The combination of a series circuit composed of six OSCs, based on poly(3-hexylthiophene) as a donor and [6,6]-phenyl C61 butyric acid methyl ester as an acceptor, with an electrolysis cell produces hydrogen and oxygen gases under light irradiation.

    27. Optimization of the Design of Extremely Thin Absorber Solar Cells Based on Electrodeposited ZnO Nanowires (pages 2321–2330)

      Dr. Claude Lévy-Clément and Dr. Jamil Elias

      Version of Record online: 6 JUN 2013 | DOI: 10.1002/cphc.201300106

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      Nanowire solar cells: The properties of the components of ZnO/CdSe/CuSCN extremely thin absorber solar cells based on electrodeposited ZnO nanowires (NWs) are investigated. The influence of their morphology and thickness on the characteristics of the solar cells is studied. The optimized ZnO/CdSe/CuSCN solar cells with ZnO NWs that are 230 nm in diameter exhibit 3.2 % solar energy conversion efficiency.

    28. Homogeneous Electrochemical Detection of Hippuric Acid in Urine Based on the Osmium–Antigen Conjugate (pages 2331–2337)

      Won-Yong Jeon, Dr. Young-Bong Choi and Prof. Hyug-Han Kim

      Version of Record online: 15 APR 2013 | DOI: 10.1002/cphc.201300039

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      Metabolite measurement: Direct conjugation of an osmium complex to a small antigen (hippuric acid, HA) is applied to the quantitative analysis of the antigen and its antibody as the electrical signal of a screen-printed carbon electrode, for homogeneous competitive electrochemical immunoassay (see picture). The proposed immunoassay provides a simple, one-step, separation-free and inexpensive assay without washing steps. The electric signals increase linearly with the concentration of HA.

    29. Photoelectrochemical Sensor Based on Quantum Dots and Sarcosine Oxidase (pages 2338–2342)

      Marc Riedel, Gero Göbel, Abuelmagd M. Abdelmonem, Prof. Dr. Wolfgang J. Parak and Prof. Dr. Fred Lisdat

      Version of Record online: 15 APR 2013 | DOI: 10.1002/cphc.201201036

      Thumbnail image of graphical abstract

      Sarcosine sensor: A photobioelectrochemical sensor based on the combination of quantum dots (QDs) with an enzyme is developed to allow a light-directed sensor read-out (see picture). The generation of charge carriers in the QDs by illumination is coupled to charge transfer with the electrode and the co-substrate of the enzyme.

    30. An Interference-Free Glucose Biosensor Based on an Anionic Redox Polymer-Mediated Enzymatic Oxidation of Glucose (pages 2343–2347)

      Huimin Deng, Wei Shen and Dr. Zhiqiang Gao

      Version of Record online: 16 JAN 2013 | DOI: 10.1002/cphc.201200961

      Thumbnail image of graphical abstract

      Sweet! A highly selective and sensitive glucose biosensor is constructed through the co-immobilization of glucose oxidase and an anionic redox polymer on the surface of a glassy carbon electrode.

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