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Recently Published Articles

  1. Reaction-Diffusion-Mediated Photolithography for Designing Pseudo-3D Microstructures

    Ju Hyeon Kim, Kwanghwi Je, Tae Soup Shim and Shin-Hyun Kim

    Version of Record online: 24 FEB 2017 | DOI: 10.1002/smll.201603516

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    Reaction-diffusion-mediated photolithography is developed to create pseudo-3D microstructures. When rate of oxygen-inhibition reaction is comparable to that of oxygen diffusion, the growth pathway is altered, which enables the formation of cone-shaped microstructures. This technique is highly controllable and reproducible for a wide range of dimensions and materials, potentially serving as a novel means to produce microstructures with unique structural features.

  2. The Influence of Block Ionomer Microstructure on Polyplex Properties: Can Simulations Help to Understand Differences in Transfection Efficiency?

    Philipp Heller, Jiajia Zhou, Benjamin Weber, Dominika Hobernik, Matthias Bros, Friederike Schmid and Matthias Barz

    Version of Record online: 24 FEB 2017 | DOI: 10.1002/smll.201603694

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    Combining molecular dynamics simulation with physicochemical and biological characterization, this work aims to provide a first rational for the influence of block ionomer microstructure on polyplex properties, e.g., size, shape, and transfection efficiency.

  3. Confining Cation Injection to Enhance CBRAM Performance by Nanopore Graphene Layer

    Xiaolong Zhao, Sen Liu, Jiebin Niu, Lei Liao, Qi Liu, Xiangheng Xiao, Hangbing Lv, Shibing Long, Writam Banerjee, Wenqing Li, Shuyao Si and Ming Liu

    Version of Record online: 24 FEB 2017 | DOI: 10.1002/smll.201603948

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    Excessive cation injection into a resistive switching layer beyond the requirement of conductive filament formation, leads to deterioration of conductive-bridge random access memory (CBRAM) performance. The cation injection can be localized by inserting a nanohole graphene between active electrode and resistive switching layer. The nanoscale localized cation injection, validated by conductive atomic force microscopy, gives rise to enhanced CBRAM performance.

  4. 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.

  5. 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.

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