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Recently Published Articles

  1. Electrodeposition-based 3D Printing of Metallic Microarchitectures with Controlled Internal Structures

    Seung Kwon Seol, Daeho Kim, Sanghyeon Lee, Jung Hyun Kim, Won Suk Chang and Ji Tae Kim

    Article first published online: 27 APR 2015 | DOI: 10.1002/smll.201500177

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    3D printing of metallic microarchitectures with controlled internal structures is realized at room temperature in ambient air conditions by the manipulation of metal ion concentration and pulsed electric potentials in the electrolyte meniscus during the meniscus-guided electrodeposition. Precise control of the printing nozzle enables the drawing of complex 3D microarchitectures with well-defined geometries and positions.

  2. Multifunctional Metal–Organic Frameworks for Photocatalysis

    Sibo Wang and Xinchen Wang

    Article first published online: 27 APR 2015 | DOI: 10.1002/smll.201500084

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    Metal–organic frameworks (MOFs) have shown great promise in heterogeneous catalysis for energy and environment applications. This review summarizes the latest development of MOFs as multifunctional materials for photoredox catalysis to operate solar-to-chemical-energy transformations according to their different roles in the photochemical systems, i.e., photocatalysts, co-catalysts, and hosts.

  3. Employing Tryptone as a General Phase Transfer Agent to Produce Renal Clearable Nanodots for Bioimaging

    Fuyao Liu, Xiuxia He, Junping Zhang, Huimao Zhang and Zhenxin Wang

    Article first published online: 27 APR 2015 | DOI: 10.1002/smll.201500287

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    Tryptone is employed as the novel ligand to transfer hydrophobic NaGdF4 nanodots into an aqueous phase without any complicated organic synthesis. Animal model experiments show excellent tumor imaging and complete renal clearance within 24 h postinjection. Furthermore, the proposed strategy can easily be extended to other types of hydrophobic inorganic nanoparticles for phase transfer and functionalization.

  4. Designing Heterogeneous 1D Nanostructure Arrays Based on AAO Templates for Energy Applications

    Liaoyong Wen, Zhijie Wang, Yan Mi, Rui Xu, Shu-Hong Yu and Yong Lei

    Article first published online: 27 APR 2015 | DOI: 10.1002/smll.201500120

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    Recent progress in energy conversion/storage devices equipped with heterogeneous 1D nanostructure arrays based on anodic aluminium oxide (AAO) nanotechnology is presented in order to address the increasing challenges from diminishing fossil fuels and the requirement of portable energy. Particular emphasis is focused on how to develop efficient devices by optimizing the componential and morphological parameters of the 1D nanostructure arrays.

  5. Enhanced Field Emission from a Carbon Nanotube Array Coated with a Hexagonal Boron Nitride Thin Film

    Xiaoxia Yang, Zhenjun Li, Feng He, Mingju Liu, Bing Bai, Wei Liu, Xiaohui Qiu, Hang Zhou, Chi Li and Qing Dai

    Article first published online: 27 APR 2015 | DOI: 10.1002/smll.201403323

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    A highly ordered carbon nanotube array is coated with a hexagonal boron nitride film by a simple, safe, and scalable method. Enhanced field-emission performance is observed with a much lower turn-on electric field, larger total emission current, improved lifetime and stability, and higher emission uniformity due to the coating.

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