Advanced Materials

Cover image for Vol. 26 Issue 21

June 4, 2014

Volume 26, Issue 21

Pages 3357–3566

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      Reduced Graphene Oxides: Light-Weight and High-Efficiency Electromagnetic Interference Shielding at Elevated Temperatures (Adv. Mater. 21/2014) (page 3357)

      Bo Wen, Maosheng Cao, Mingming Lu, Wenqiang Cao, Honglong Shi, Jia Liu, Xixi Wang, Haibo Jin, Xiaoyong Fang, Wenzhong Wang and Jie Yuan

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470138

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      As the thinnest material of the carbon family, reduced graphene oxide (r-GO) composites exhibit highly efficient EMI shielding at elevated temperatures, attributed to the high carrier mobility coupled with abundant residual groups in/on the r-GOs, as described by W. Wang, H. Jin, M. Cao, and co-workers on page 3484. Meanwhile, due to the competition between the conductivity and relaxation, these composites with different mass ratios show opposite temperature dependences on both the imaginary permittivity and EMI shielding.

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      Batteries: Effect of Carbon Matrix Dimensions on the Electrochemical Properties of Na3V2(PO4)3 Nanograins for High-Performance Symmetric Sodium-Ion Batteries (Adv. Mater. 21/2014) (page 3358)

      Shuo Li, Yifan Dong, Lin Xu, Xu Xu, Liang He and Liqiang Mai

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470139

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      Na-ion batteries are promising alternatives to Li-ion batteries. L. Q. Mai and co-workers on page 3545 show that Na3V2(PO4)3 nanograins in a carbon nanosphere matrix exhibit the best performance due to the high sodium flux across the interface of the electrode. A novel symmetric sodium-ion battery utilizing Na3V2(PO4)3 nanograins simultaneously for the cathode and the anode can be assembled, which shows satisfying electrochemical performance and has good prospects for grid-scale energy storage.

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      Hybrid Solar Cells: Enhanced Light Absorption of Silicon Nanotube Arrays for Organic/Inorganic Hybrid Solar Cells (Adv. Mater. 21/2014) (page 3567)

      Huisu Jeong, Hui Song, Yusin Pak, Il Keun Kwon, Kyubong Jo, Heon Lee and Gun Young Jung

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470143

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      A periodic array of silicon nanotubes is demonstrated as a light absorber in n-Si/poly(3,4-ethylenedioxythiophene) :polystyrene sulfonate (PEDOT:PSS) hybrid solar cells by G. Y. Jung, H. Lee, and co-workers on page 3445. Sunlight is captured efficiently within the nanotube array, allowing a better power conversion efficiency.

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      Nanoporous Networks: Assembly of a Bacteriophage-Based Template for the Organization of Materials into Nanoporous Networks (Adv. Mater. 21/2014) (page 3568)

      Noémie-Manuelle Dorval Courchesne, Matthew T. Klug, Po-Yen Chen, Steven E. Kooi, Dong Soo Yun, Nina Hong, Nicholas X. Fang, Angela M. Belcher and Paula T. Hammond

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470144

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      A functional nanoporous film assembled by cross-linking M13 bacteriophages using a layer-by-layer process is illustrated by P. T. Hammond, A. M. Belcher, and co-workers on page 3398. Gold nanoparticles can be controllably distributed within the film using genetically engineered bacteriophages that display peptides having an affinity with gold. The resulting network can be used as a scaffold to template nanocrystalline titanium dioxide, making it an attractive nanocomposite for electrochemical, optical, and photovoltaic applications.

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      Masthead: (Adv. Mater. 21/2014)

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470141

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  7. Reviews

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    1. Three-Dimensional Self-Supported Metal Oxides for Advanced Energy Storage (pages 3368–3397)

      Brian L. Ellis, Philippe Knauth and Thierry Djenizian

      Version of Record online: 2 APR 2014 | DOI: 10.1002/adma.201306126

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      The role of electrodes based on self-supported 3D nanostructured metal oxides is important in energy storage and conversion. This article introduces readers to the concept of self-supported 3D electrodes and the advantages of these electrodes have over current designs, along with the common methods of fabrication and potential applications, such as 3D Li-ion microbatteries and supercapacitors.

  8. Communications

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    1. Assembly of a Bacteriophage-Based Template for the Organization of Materials into Nanoporous Networks (pages 3398–3404)

      Noémie-Manuelle Dorval Courchesne, Matthew T. Klug, Po-Yen Chen, Steven E. Kooi, Dong Soo Yun, Nina Hong, Nicholas X. Fang, Angela M. Belcher and Paula T. Hammond

      Version of Record online: 20 MAR 2014 | DOI: 10.1002/adma.201305928

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      M13 bacteriophages are assembled via a covalent layer-by-layer process to form a highly nanoporous network capable of organizing nanoparticles and acting as a scaffold for templating metal-oxides. The morphological and optical properties of the film itself are presented as well as its ability to organize and disperse metal nanoparticles.

    2. High Capacity, Easy Release Adhesives From Renewable Materials (pages 3405–3409)

      Michael D. Bartlett and Alfred J. Crosby

      Version of Record online: 6 FEB 2014 | DOI: 10.1002/adma.201305593

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      Reversible adhesives composed of renewable materials are presented which achieve high force capacities (810 N) while maintaining easy release (∼0.25 N) and reusability. These simple, non-tacky adhesives consist of natural rubber impregnated into stiff natural fiber fabrics, including cotton, hemp, and jute. This versatile approach enables a clear method for designs of environmentally-responsible, reversible adhesives for a wide variety of applications.

    3. High-Resolution Electron Microscopy and Spectroscopy of Ferritin in Biocompatible Graphene Liquid Cells and Graphene Sandwiches (pages 3410–3414)

      Canhui Wang, Qiao Qiao, Tolou Shokuhfar and Robert F. Klie

      Version of Record online: 3 FEB 2014 | DOI: 10.1002/adma.201306069

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      Atomic and electronic structures of hydrated ferritin are characterized using electron microscopy and spectroscopy through encapsulation in single layer graphene in a biocompatible manner. Graphene's ability to reduce radiation damage levels to hydrogen bond breakage is demonstrated. A reduction of iron valence from 3+ to 2+ is measured at nanometer-resolution in ferritin, showing initial stages of iron release by ferritin.

    4. Novel Hydrogel Actuator Inspired by Reversible Mussel Adhesive Protein Chemistry (pages 3415–3419)

      Bruce P. Lee and Shari Konst

      Version of Record online: 4 MAR 2014 | DOI: 10.1002/adma.201306137

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      A novel hydrogel actuator that combines ionoprinting techniques with reversible catechol-metal ion coordination chemistry found in mussel adhesive proteins is developed. Deposited metal ions increase the local crosslinking density, which induces sharp bending of the hydrogel. Reversibly bound metal ions can be removed and reintroduced in a different pattern so that the hydrogel can be reprogrammed to transform into a different 3-dimentional shape.

  9. Frontispiece

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      Membranes: Carbon Nanomembranes (CNMs) Supported by Polymer: Mechanics and Gas Permeation (Adv. Mater. 21/2014) (page 3420)

      Min Ai, Sergey Shishatskiy, Jan Wind, Xianghui Zhang, Christoph T. Nottbohm, Nils Mellech, Andreas Winter, Henning Vieker, Jun Qiu, Karl-Josef Dietz, Armin Gölzhäuser and André Beyer

      Version of Record online: 2 JUN 2014 | DOI: 10.1002/adma.201470142

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      Carbon dioxide passes through a carbon nanomembrane (CNM) to the upper side, while nitrogen and oxygen are blocked. This simplified image illustrates the up to fortyfold difference in the gas permeance of CNMs. These unique and technologically relevant gas-permeation characteristics of single- and triple-layer CNMs from self-assembled monolayers are described by A. Beyer and co-workers on page 3421.

  10. Communications

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    1. Carbon Nanomembranes (CNMs) Supported by Polymer: Mechanics and Gas Permeation (pages 3421–3426)

      Min Ai, Sergey Shishatskiy, Jan Wind, Xianghui Zhang, Christoph T. Nottbohm, Nils Mellech, Andreas Winter, Henning Vieker, Jun Qiu, Karl-Josef Dietz, Armin Gölzhäuser and André Beyer

      Version of Record online: 17 FEB 2014 | DOI: 10.1002/adma.201304536

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      Gas permeation characteristics of carbon nanomembranes (CNMs) from self-assembled monolayers are reported for the first time. The assembly of CNMs onto polydimethylsiloxane (PDMS) support membranes allows mechanical measurements under compression as well as determination of gas permeation characteristics. The results suggest that molecular-sized channels in CNMs dominate the permeation properties of the 1 nm thin CNMs.

    2. Destabilization of Gold Clusters for Controlled Nanosynthesis: From Clusters to Polyhedra (pages 3427–3432)

      Guijian Guan, Shuhua Liu, Yongqing Cai, Michelle Low, M. S. Bharathi, Shuangyuan Zhang, Shiqiang Bai, Yong-Wei Zhang and Ming-Yong Han

      Version of Record online: 11 MAR 2014 | DOI: 10.1002/adma.201306167

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      A precisely controlled destabilization of gold thiolate clusters is demonstrated to grow 12 {110}-faceted gold dodecahedra with greatly enhanced catalytic capability, and reveal the growth mechanism by DFT simulations. This greatly advances our understanding of nanocrystal growth and opens a new window for controlling the dissociation of clusters to produce nanocrystals with specific shapes.

    3. Drug Delivery with PEGylated MoS2 Nano-sheets for Combined Photothermal and Chemotherapy of Cancer (pages 3433–3440)

      Teng Liu, Chao Wang, Xing Gu, Hua Gong, Liang Cheng, Xiaoze Shi, Liangzhu Feng, Baoquan Sun and Zhuang Liu

      Version of Record online: 20 FEB 2014 | DOI: 10.1002/adma.201305256

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      MoS2 nanosheets functionalized with poly­ethylene glycol are for the first time used as a multifunctional drug delivery system with high drug loading capacities. Using doxorubicin as the model drug and taking advantages of the strong near-infrared absorbance of MoS2, combined photothermal and chemotherapy of cancer is realized in animal experiments, achieving excellent synergistic anti-tumor effect upon systemic administration.

    4. Environmental Memory of Polymer Networks under Stress (pages 3441–3444)

      Dominik Quitmann, Nikola Gushterov, Gabriele Sadowski, Frank Katzenberg and Joerg C. Tiller

      Version of Record online: 14 MAR 2014 | DOI: 10.1002/adma.201305698

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      Generally reversible stimuli-responsive materials do not memorize the stimulus. In this study we describe an example in which stretched and constrained semi-crystalline polymer networks respond to solvent gases with stress and simultaneously memorize the concentration and the chemical nature of the solvent itself in their microstructure (see figure). This written solvent signature can even be deleted by temperature.

    5. Enhanced Light Absorption of Silicon Nanotube Arrays for Organic/Inorganic Hybrid Solar Cells (pages 3445–3450)

      Huisu Jeong, Hui Song, Yusin Pak, Il Keun Kwon, Kyubong Jo, Heon Lee and Gun Young Jung

      Version of Record online: 18 FEB 2014 | DOI: 10.1002/adma.201305394

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      By combining nanoimprint lithography technique and a two-step lift-off process, a Si nanotube array is fabricated and applied as a light absorber for n-Si/PEDOT:PSS hybrid solar cells. The light is effectively trapped within the nanotubes and the device reveals a Jsc of 29.9 mA·cm−2 and a power conversion efficiency of 10.03%, which is an enhancement of 13.4% compared to the cell having the best-known Si architecture of nanocones as a light absorber to date.

    6. Highly Stretchable Resistive Pressure Sensors Using a Conductive Elastomeric Composite on a Micropyramid Array (pages 3451–3458)

      Chwee-Lin Choong, Mun-Bo Shim, Byoung-Sun Lee, Sanghun Jeon, Dong-Su Ko, Tae-Hyung Kang, Jihyun Bae, Sung Hoon Lee, Kyung-Eun Byun, Jungkyun Im, Yong Jin Jeong, Chan Eon Park, Jong-Jin Park and U-In Chung

      Version of Record online: 17 FEB 2014 | DOI: 10.1002/adma.201305182

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      A stretchable resistive pressure sensor is achieved by coating a compressible substrate with a highly stretchable electrode. The substrate contains an array of microscale pyramidal features, and the electrode comprises a polymer composite. When the pressure-induced geometrical change experienced by the electrode is maximized at 40% elongation, a sensitivity of 10.3 kPa−1 is achieved.

    7. Rapid Fabrication of Designable Large-Scale Aligned Graphene Nanoribbons by Electro-hydrodynamic Nanowire Lithography (pages 3459–3464)

      Wentao Xu, Hong-Kyu Seo, Sung-Yong Min, Himchan Cho, Tae-Seok Lim, Chang-yeol Oh, Yeongjun Lee and Tae-Woo Lee

      Version of Record online: 9 APR 2014 | DOI: 10.1002/adma.201306081

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      A new technique, electro-hydrodynamic nanowire (e-NW) lithography , is demonstrated for the rapid, inexpensive, and efficient fabrication of graphene nanorib bons (GNRs) on a large scale while simultaneously controlling the location and alignment of the GNRs. A series of interesting GNR architectures, including parallel lines, grids, ladders, and stars are produced. A sub-10-nm-wide GNR is obtained to fabricate field-effect transistors that show a room-temperature on/off current ratio of ca. 70.

    8. Waveguide-Integrated Light-Emitting Carbon Nanotubes (pages 3465–3472)

      Svetlana Khasminskaya, Feliks Pyatkov, Benjamin S. Flavel, Wolfram H. Pernice and Ralph Krupke

      Version of Record online: 18 MAR 2014 | DOI: 10.1002/adma.201305634

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      We demonstrate how light from an electrically driven carbon nanotube can be coupled directly into a photonic waveguide architecture. Waferscale, broadband sources are realized integrated with nanophotonic circuits allowing for propagation of light over centimeter distances. Moreover, we show that the spectral properties of the emitter can be controlled directly on chip with passive devices using Mach-Zehnder interfero­meters and grating structures.

    9. Power Factor Enhancement in Solution-Processed Organic n-Type Thermoelectrics Through Molecular Design (pages 3473–3477)

      Boris Russ, Maxwell J. Robb, Fulvio G. Brunetti, P. Levi Miller, Erin E. Perry, Shrayesh N. Patel, Victor Ho, William B. Chang, Jeffrey J. Urban, Michael L. Chabinyc, Craig J. Hawker and Rachel A. Segalman

      Version of Record online: 14 MAR 2014 | DOI: 10.1002/adma.201306116

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      A new class of high-performance n-type organic thermoelectric materials, self-doping perylene diimide derivatives with modified side chains, is reported. These materials achieve the highest n-type thermoelectric performance of solution-processed organic materials reported to date, with power factors as high as 1.4 μW/mK2. These results demonstrate that molecular design is a promising strategy for enhancing organic thermoelectric performance.

    10. Manipulating DC Currents with Bilayer Bulk Natural Materials (pages 3478–3483)

      Tiancheng Han, Huapeng Ye, Yu Luo, Swee Ping Yeo, Jinghua Teng, Shuang Zhang and Cheng-Wei Qiu

      Version of Record online: 18 MAR 2014 | DOI: 10.1002/adma.201305586

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      A novel and general method for spatially manipulating DC currents has been proposed and experimentally verified by only using bilayer bulk natural conductive materials. Our approach shows distinctive advantages with respect to homogeneity, isotropy, and independence of complicated microfabrication techniques. Our design scheme can be readily extended to robust manipulations of magnetic fields, thermal heat, elastic mechanics, and matter waves.

    11. Reduced Graphene Oxides: Light-Weight and High-Efficiency Electromagnetic Interference Shielding at Elevated Temperatures (pages 3484–3489)

      Bo Wen, Maosheng Cao, Mingming Lu, Wenqiang Cao, Honglong Shi, Jia Liu, Xixi Wang, Haibo Jin, Xiaoyong Fang, Wenzhong Wang and Jie Yuan

      Version of Record online: 20 MAR 2014 | DOI: 10.1002/adma.201400108

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      Chemical graphitized r-GOs, as the thinnest and lightest material in the carbon family, exhibit high-efficiency electromagnetic interference (EMI) shielding at elevated temperature, attributed to the cooperation of dipole polarization and hopping conductivity. The r-GO composites show different temperature-dependent imaginary permittivities and EMI shielding performances with changing mass ratio.

    12. Strain-Tunable Superconducting Field-Effect Transistor with an Organic Strongly-Correlated Electron System (pages 3490–3495)

      Masayuki Suda, Yoshitaka Kawasugi, Takeo Minari, Kazuhito Tsukagoshi, Reizo Kato and Hiroshi M. Yamamoto

      Version of Record online: 24 MAR 2014 | DOI: 10.1002/adma.201305797

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      A novel type of flexible organic field-effect transistor in which strain effects can be finely tuned continuously has been fabricated. In this novel device structure, electronic phases can be controlled both by “band-filling” and by “band-width” continuously. Finally, co-regulation of “band-filling” and “band-width” in the strongly-correlated organic material realize field-induced emergence of superconducting fractions at low temperature.

    13. Significant Enhancement in Photocatalytic Reduction of Water to Hydrogen by Au/Cu2ZnSnS4 Nanostructure (pages 3496–3500)

      Enna Ha, Lawrence Yoon Suk Lee, Jingchuan Wang, Fenghua Li, Kwok-Yin Wong and Shik Chi Edman Tsang

      Version of Record online: 18 MAR 2014 | DOI: 10.1002/adma.201400243

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      Enhanced photocatalytic activities by Au core Novel Au/Cu2ZnSnS4 core/shell nanoparticles (NPs) are synthesized for the first time via wet chemistry approach. The insertion of Au core into CZTS NPs dramatically enhances light absorption due to surface plasmon resonance effect, especially in the Vis-NIR region. Au/CZTS core/shell NPs show much higher photocatalytic activities for hydrogen evolution compared with other CZTS nanostructures.

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      One-Step Synthesis of N-doped Graphene Quantum Sheets from Monolayer Graphene by Nitrogen Plasma (pages 3501–3505)

      Joonhee Moon, Junghyun An, Uk Sim, Sung-Pyo Cho, Jin Hyoun Kang, Chul Chung, Jung-Hye Seo, Jouhahn Lee, Ki Tae Nam and Byung Hee Hong

      Version of Record online: 24 MAR 2014 | DOI: 10.1002/adma.201306287

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      High-quality N-doped graphene quantum sheets are successfully fabricated from as-grown monolayer graphene on Cu using nitrogen plasma, which can be transferred as a film-like layer or easily dispersed in an organic solvent for further optoelectronic or photoelectrochemical applications.

    15. Programmable Photo-Electrochemical Hydrogen Evolution Based on Multi-Segmented CdS-Au Nanorod Arrays (pages 3506–3512)

      Xiaotian Wang, Chihao Liow, Dianpeng Qi, Bowen Zhu, Wan Ru Leow, Hua Wang, Can Xue, Xiaodong Chen and Shuzhou Li

      Version of Record online: 24 MAR 2014 | DOI: 10.1002/adma.201306201

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      Programmable photocatalysts for hydrogen evolution have been fabricated based on multi-segmented CdS-Au nanorod arrays, which exhibited high-efficiency and programmability in hydrogen evolution as the photoanodes in the photoelectrochemical cell. Multiple different components each possess unique physical and chemical properties that provide these cascade nanostructures with multiformity, programmability, and adaptability. These advantages allow these nanostructures as promising candidates for high efficient harvesting and conversion of solar energy.

    16. High-Performance Quantum-Dot Solids via Elemental Sulfur Synthesis (pages 3513–3519)

      Mingjian Yuan, Kyle W. Kemp, Susanna M. Thon, Jin Young Kim, Kang Wei Chou, Aram Amassian and Edward H. Sargent

      Version of Record online: 21 MAR 2014 | DOI: 10.1002/adma.201305912

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      An elemental-sulfur-based synthesis is reported, which, combined with processing to improve the size dispersion and passivation, results in a low-cost high-quality platform for small-bandgap PbS-CQD-based devices. Size-selective precipitation and cadmium chloride passivation are used to improve the power conversion efficiency of 1 eV bandgap CQD photovoltaic devices dramatically, which leads to record power conversion efficiency for a 1 eV PbS CQD solar cell of 5.4%.

    17. Hierarchical Porous Framework of Si-Based Electrodes for Minimal Volumetric Expansion (pages 3520–3525)

      Daniela Molina Piper, Jae Ha Woo, Seoung-Bum Son, Seul Cham Kim, Kyu Hwan Oh and Se-Hee Lee

      Version of Record online: 13 MAR 2014 | DOI: 10.1002/adma.201305781

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      A tunable hierarchical porous framework is fabricated to house the volumetric changes outputted by Si. The nSi@cPAN/cPAN electrodes only expand by 14.3% at full initial lithiation and remain within 23% expansion from its uncycled state after 20 cycles with remarkable cycling stability and high coulombic efficiencies in excess of 99.5%.

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      Triptycene Induced Enhancement of Membrane Gas Selectivity for Microporous Tröger's Base Polymers (pages 3526–3531)

      Mariolino Carta, Matthew Croad, Richard Malpass-Evans, Johannes C. Jansen, Paola Bernardo, Gabriele Clarizia, Karel Friess, Marek Lanč and Neil B. McKeown

      Version of Record online: 14 MAR 2014 | DOI: 10.1002/adma.201305783

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      A highly gas permeable polymer with exceptional size selectivity is prepared by fusing triptycene units together via a poly­merization reaction involving Tröger's base formation. The extreme rigidity of this polymer of intrinsic microporosity (PIM-Trip-TB) facilitates gas permeability data that lie well above the benchmark 2008 Robeson upper bounds for the important O2/N2 and H2/N2 gas pairs.

    19. Hydrogen Detected by the Naked Eye: Optical Hydrogen Gas Sensors Based on Core/Shell Plasmonic Nanorod Metamaterials (pages 3532–3537)

      Mazhar E. Nasir, Wayne Dickson, Gregory A. Wurtz, William P. Wardley and Anatoly V. Zayats

      Version of Record online: 18 MAR 2014 | DOI: 10.1002/adma.201305958

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      Gold-core/palladium-shell metamaterials for hydrogen detection are presented. The more than 30% change in both the reflection and transmission from the metamaterial layer that is observed when the layer is exposed to 2% hydrogen mixture is clearly noticeable to the naked eye as a change in the brightness of light transmitted by the metamaterial. This sensor should make a contribution to the safety of processes involving hydrogen.

    20. Broadband Few-Layer MoS2 Saturable Absorbers (pages 3538–3544)

      Shuxian Wang, Haohai Yu, Huaijin Zhang, Aizhu Wang, Mingwen Zhao, Yanxue Chen, Liangmo Mei and Jiyang Wang

      Version of Record online: 2 APR 2014 | DOI: 10.1002/adma.201306322

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      The bandgaps of monolayer and bulk molybdenum sulfide (MoS2) result in that they are far from suitable for application as a saturable absorption device. In this paper, the operation of a broadband MoS2 saturable absorber is demonstrated by the introduction of suitable defects. It is believed that the results provide some inspiration in the investigation of two-dimensional optoelectronic materials.

    21. Effect of Carbon Matrix Dimensions on the Electrochemical Properties of Na3V2(PO4)3 Nanograins for High-Performance Symmetric Sodium-Ion Batteries (pages 3545–3553)

      Shuo Li, Yifan Dong, Lin Xu, Xu Xu, Liang He and Liqiang Mai

      Version of Record online: 14 MAR 2014 | DOI: 10.1002/adma.201305522

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      Na3V2(PO4)3 nanograins dispersed in different carbon matrices are rationally synthesized and systematically characterized. The acetylene carbon matrix provides the best conductive networks for electrons and sodium ions, which endows Na3V2(PO4)3 stable cyclability and high rate performance. The Na3V2(PO4)3-based symmetric sodium-ion batteries show outstanding electrochemical performance, which is promising for large-scale and low-cost energy storage applications.

    22. Integrating Oxaliplatin with Highly Luminescent Carbon Dots: An Unprecedented Theranostic Agent for Personalized Medicine (pages 3554–3560)

      Min Zheng, Shi Liu, Jing Li, Dan Qu, Haifeng Zhao, Xingang Guan, Xiuli Hu, Zhigang Xie, Xiabin Jing and Zaicheng Sun

      Version of Record online: 14 MAR 2014 | DOI: 10.1002/adma.201306192

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      A theranostic nanomedicine (CD-Oxa) is synthesized by means of the condensation reaction between the amino groups on the surface of fluorescent carbon dots (CDs) and the carboxyl group of the oxaliplatin derivative Oxa(IV)-COOH. CD-Oxa, which integrates the optical properties of CDs and the anticancer function of oxaliplatin, could be used for simultaneous drug delivery and fluorescent tracking.

    23. Adaptable Hetero Diels–Alder Networks for Fast Self-Healing under Mild Conditions (pages 3561–3566)

      Kim K. Oehlenschlaeger, Jan O. Mueller, Josef Brandt, Stefan Hilf, Albena Lederer, Manfred Wilhelm, Robert Graf, Michelle L. Coote, Friedrich G. Schmidt and Christopher Barner-Kowollik

      Version of Record online: 21 MAR 2014 | DOI: 10.1002/adma.201306258

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      A novel adaptable network based on the reversible hetero Diels–Alder reaction of a cyanodithioester and cyclopentadiene is presented. Reversible between 50–120 °C, the adjustable and self-healing features of the network are evidenced via temperature dependent rheology experiments and repetitive tensile tests whereas the network's chemical structure is explored by temperature dependent 1H MAS-NMR spectroscopy.

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