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Recently Published Articles

  1. DNA-SMART: Biopatterned Polymer Film Microchannels for Selective Immobilization of Proteins and Cells

    Ann-Kathrin Schneider, Pavel M. Nikolov, Stefan Giselbrecht and Christof M. Niemeyer

    Version of Record online: 22 FEB 2017 | DOI: 10.1002/smll.201603923

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    DNA substrate modification and replication by thermoforming enables the formation of microfluidic devices with complex patterned biologically active inner surfaces. Microchannels presenting three different proteins are used for selective capture of living cells under flow conditions.

  2. Self-Supported PtAuP Alloy Nanotube Arrays with Enhanced Activity and Stability for Methanol Electro-Oxidation

    Lili Zhang, Liang-Xin Ding, Hongbin Chen, Dongdong Li, Suqing Wang and Haihui Wang

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/smll.201604000

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    1D self-supported PtAuP alloy nanotube arrays are synthesized via electro-codeposition approach and present enhanced activity and improved resistance to CO poisoning through inhibiting CO formation (non-CO pathway) during the methanol oxidation reaction in acidic medium. This well-controlled Pt-/transition metal-/nonmetal ternary nanotube array structure exhibits a specific electroactivity twice as great as that of PtAu alloy nanotube arrays and commercial Pt/C.

  3. Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation

    Vinayak S. Kale, Uk Sim, Jiwoong Yang, Kyoungsuk Jin, Sue In Chae, Woo Je Chang, Arun Kumar Sinha, Heonjin Ha, Chan-Cuk Hwang, Junghyun An, Hyo-Ki Hong, Zonghoon Lee, Ki Tae Nam and Taeghwan Hyeon

    Version of Record online: 20 FEB 2017 | DOI: 10.1002/smll.201603893

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    An efficient oxygen evolution reaction electrocatalyst with the lowest overpotential in carbon-based system comparable to established metal/metal oxide systems (290 mV at 10 mA cm−2, Tafel slope 120 mV dec−1) and long-term durability for 18 h (91.2% retention) is successfully realized from S-modified graphitic carbon nitride nanostructures. This electrocatalyst is achieved from melamine nanogeodes by in situ sulfur modification at high temperature.

  4. Eliminating Overerase Behavior by Designing Energy Band in High-Speed Charge-Trap Memory Based on WSe2

    Chunsen Liu, Xiao Yan, Jianlu Wang, Shijin Ding, Peng Zhou and David Wei Zhang

    Version of Record online: 20 FEB 2017 | DOI: 10.1002/smll.201604128

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    A 2D WSe2 and a semiconductor industry compatible charge-trap stack are combined to produce exceptional memory. By carefully designing the energy-band structure, the memory write time is as fast as 1 µs and an electron window of over 20 V with charge-trap selectivity of about 13 is achieved. These are state-of-the-art values never previously reported in flash memory based on atomic crystals.

  5. Phase Separation Derived Core/Shell Structured Cu11V6O26/V2O5 Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

    Jian Pei, Gang Chen, Qiang Zhang, Changfeng Bie and Jingxue Sun

    Version of Record online: 20 FEB 2017 | DOI: 10.1002/smll.201603140

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    Unique amorphous V2O5 coated Cu11V6O26 microspheres (Cu11V6O26/V2O5) with a 3D hierarchical architecture presents large reversible capacity, excellent rate capability, and especially outstanding self-recovery capacity as anode material for lithium-ion batteries.