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  1. Surface Energy and Surface Stability of Ag Nanocrystals at Elevated Temperatures and Their Dominance in Sublimation-Induced Shape Evolution

    Long-Bing He, Lei Zhang, Xiao-Dong Tan, Lu-Ping Tang, Tao Xu, Yi-Long Zhou, Zhan-Yong Ren, Yun Wang, Chun-Yu Teng, Li-Tao Sun and Jian-Feng Nie

    Version of Record online: 26 MAY 2017 | DOI: 10.1002/smll.201700743

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    The surface energy and surface stability of Ag nanocrystals (NCs) are investigated using an in situ transmission electron microscope. The Ag NCs behave as quasiliquids during sublimation, with their surface energy calculated to be 1.1–1.3 J m−2. It is found that sublimation-induced shape evolution of the Ag nanocrystals is codetermined by both the interfacial wetting equilibrium and the relaxation of surface energy.

  2. Controlling the Resting Membrane Potential of Cells with Conducting Polymer Microwires

    Dhanya T. Jayaram, Qingjie Luo, Scott B. Thourson, Adam H. Finlay and Christine K. Payne

    Version of Record online: 26 MAY 2017 | DOI: 10.1002/smll.201700789

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    Conducting polymer microwires are used to control the resting membrane potential of E. coli cells. It is expected that these microwires will provide a new, noninvasive, cellular-scale tool for the control of resting membrane potential with high spatial precision.

  3. Stretchable Platinum Network-Based Transparent Electrodes for Highly Sensitive Wearable Electronics

    Yuting Wang, Jing Cheng, Yan Xing, Muhammad Shahid, Hiroki Nishijima and Wei Pan

    Version of Record online: 26 MAY 2017 | DOI: 10.1002/smll.201604291

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    A platinum network-based transparent electrode with unique nanosturcture is fabricated by electrospinning. One of the most interesting demonstrations for this Pt nanobelt electrode is its excellent reversibly resilient characteristic. The electric conductivity of the stretchable Pt electrode could recover to its initial value after 160% extending and this performance is repeatable and stable.

  4. Self-Expansion Construction of Ultralight Carbon Nanotube Aerogels with a 3D and Hierarchical Cellular Structure

    Yufeng Luo, Shu Luo, Hengcai Wu, Mengya Li, Ke Wang, Lingjia Yan, Kaili Jiang, Qunqing Li, Shoushan Fan and Jiaping Wang

    Version of Record online: 26 MAY 2017 | DOI: 10.1002/smll.201700966

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    An ultralight pure carbon nanotube (CNT) aerogel is prepared through self-expansion of CNT film in a piranha solution. The macroscopic CNT aerogels have an extremely low apparent density (0.12 mg cm−3) and a hierarchical cellular structure with giant and ultrathin CNT sheets as cell walls, showing high adsorption capacities for various kinds of solvents and great potential in a wide range of applications.

  5. Fast-Clearable Nanocarriers Conducting Chemo/Photothermal Combination Therapy to Inhibit Recurrence of Malignant Tumors

    Lingzhi Zhao, Wei Yuan, Huijun Phoebe Tham, Hongzhong Chen, Pengyao Xing, Huijing Xiang, Xin Yao, Xiaochen Qiu, Yu Dai, Liangliang Zhu, Fuyou Li and Yanli Zhao

    Version of Record online: 24 MAY 2017 | DOI: 10.1002/smll.201700963

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    A fast-clearable hollow polymer–silica nanocarrier is developed to perform targeted delivery of the anticancer drug paclitaxel and photothermal agent palladium phthalocyanine to tumors. Combined chemo/photothermal therapy on tumor-bearing mice reveals that the synergistic effect of the complementary treatments can overcome the problem of recurrent tumors from photothermal therapy, eradicating the malignant tumor xenograft.