Advanced Functional Materials

Cover image for Vol. 20 Issue 21

Special Issue: Nanomaterials Research by Chinese Scientists

November 9, 2010

Volume 20, Issue 21

Pages 3617–3803

  1. Cover Picture

    1. Top of page
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    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Essay
    7. Feature Articles
    8. Full Papers
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    11. Frontispiece
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    1. Fuel Cells: Porous Platinum Nanotubes for Oxygen Reduction and Methanol Oxidation Reactions (Adv. Funct. Mater. 21/2010) (page 3617)

      Shaun M. Alia, Gang Zhang, David Kisailus, Dongsheng Li, Shuang Gu, Kurt Jensen and Yushan Yan

      Article first published online: 27 OCT 2010 | DOI: 10.1002/adfm.201090095

      Thumbnail image of graphical abstract

      The cover image presents porous platinum nanotubes with their accompanying diffraction pattern and microscopy image. Oxygen reduction and hydrogen oxidation reactions are depicted in the image, representing the use of platinum nanotubes as a fuel-cell catalyst. The morphology of the platinum nanotubes results in an increased surface area and allows access to the internal surface, thus yielding enhanced activity in oxygen reduction and methanol oxidation, as reported by Y. S. Yan and co-workers on page 3742.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Essay
    7. Feature Articles
    8. Full Papers
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    11. Frontispiece
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    1. Hybrid Nanorings: Magnetic Alloy Nanorings Loaded with Gold Nanoparticles: Synthesis and Applications as Multimodal Imaging Contrast Agents (Adv. Funct. Mater. 21/2010) (page 3618)

      Yang Lu, Ce Shi, Ming-Jun Hu, Yun-Jun Xu, Le Yu, Long-Ping Wen, Yang Zhao, Wei-Ping Xu and Shu-Hong Yu

      Article first published online: 27 OCT 2010 | DOI: 10.1002/adfm.201090096

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      The image presents a new type of multicomponent Ni7Co3 alloy–gold nanorings, which can be conveniently synthesized on a large scale at room temperature by using alloy nanorings as both reducing agent and sacrificial template in water. These novel alloy–gold hybrid nanorings perform as multimodal imaging contrast agents and potential photothermal agents for cancer diagnosis and therapy, as reported by S. H. Yu and coworkers on p. 3701.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Essay
    7. Feature Articles
    8. Full Papers
    9. Feature Articles
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    11. Frontispiece
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    1. Contents: (Adv. Funct. Mater. 21/2010) (pages 3619–3626)

      Article first published online: 27 OCT 2010 | DOI: 10.1002/adfm.201090097

  4. Editorial

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    4. Contents
    5. Editorial
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    7. Feature Articles
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  5. Essay

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  6. Feature Articles

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    1. Syntheses and Properties of Micro/Nanostructured Crystallites with High-Energy Surfaces (pages 3634–3645)

      Zhi-Yuan Jiang, Qin Kuang, Zhao-Xiong Xie and Lan-Sun Zheng

      Article first published online: 7 OCT 2010 | DOI: 10.1002/adfm.201001243

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      Micro/nanostructured crystallites with high-energy surfaces have attracted increasing attention owing to their fascinating surface-dependent properties and promising applications. This feature article provides a brief account of these efforts, especially on several typical crystal structures, including the wurtzite structure (ZnO), rocksalt structure (MgO), anatase structure (TiO2), rutile structure (SnO2), and face-centered cubic (Au) structure.

    2. Metal Nanoplates on Semiconductor Substrates (pages 3646–3657)

      Yugang Sun

      Article first published online: 3 SEP 2010 | DOI: 10.1002/adfm.201001336

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      Nanoplates of noble metals (as shown in the image, e.g., Ag, Pd, Au/Ag alloy) are grown on large-area semiconductor substrates (e.g., GaAs and Si) via a galvanic reaction between the substrates and an aqueous solution of metal precursors at room temperature.

  7. Full Papers

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    1. Controlled Synthesis and Functionalization of Ordered Large-Pore Mesoporous Carbons (pages 3658–3665)

      Yonghui Deng, Yue Cai, Zhenkun Sun, Dong Gu, Jing Wei, Wei Li, Xiaohui Guo, Jianping Yang and Dongyuan Zhao

      Article first published online: 1 OCT 2010 | DOI: 10.1002/adfm.201001202

      Thumbnail image of graphical abstract

      Ordered mesoporous carbon C-FDU-18s with tunable pore sizes of 12–33 nm and pore-wall thicknesses of 5–11 nm were synthesized by using diblock copolymers poly(ethylene oxide)-block-poly(styrene) (PEO-b-PS) with various PS chain lengths as templates and through the evaporation induced self-assembly process. Ag and Fe3O4 nanoparticles were deposited inside the mesopores via in situ reductions, respectively, resulting in functional ordered large-pore mesoporous carbons.

    2. Room-Temperature Ferromagnetic Silver Vanadium Oxide (Ag1.2V3O8): A Magnetic Semiconductor Nanoring Structure (pages 3666–3672)

      Changzheng Wu, Haiou Zhu, Jun Dai, Wensheng Yan, Jinlong Yang, Yangchao Tian, Shiqiang Wei and Yi Xie

      Article first published online: 8 SEP 2010 | DOI: 10.1002/adfm.201001179

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      A room-temperature ferromagnetic Ag1.2V3O8 nanoring structure is achieved by controlled oxidation of the V4+ precursors in an Ag+-containing aqueous solution. This new magnetic semiconductor (MSC) nanoring structure paves the way for fascinating applications in spintronic devices as well as a better understanding of the underlying ferromagnetic mechanism in MSC materials.

    3. Kinetics-Controlled Formation of Gold Clusters Using a Quasi-Biological System (pages 3673–3677)

      Ming-Xi Zhang, Ran Cui, Zhi-Quan Tian, Zhi-Ling Zhang and Dai-Wen Pang

      Article first published online: 24 SEP 2010 | DOI: 10.1002/adfm.201001185

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      A biomimetic reduction in a quasi-biological system containing electrolyte, peptide, and coenzyme was rationally utilized for the synthesis of gold clusters. Several favorable factors were created, which conspired together for the realization of a kinetics-controlled formation of Au clusters under mild conditions.

    4. Selective Synthesis of Peapodlike Ni/Ni3S2 Nanochains and Nickel Sulfide Hollow Chains and Their Magnetic Properties (pages 3678–3683)

      Wei Zhou, Weimeng Chen, Jianwei Nai, PengGang Yin, Chinping Chen and Lin Guo

      Article first published online: 22 SEP 2010 | DOI: 10.1002/adfm.201001287

      Thumbnail image of graphical abstract

      Magnetic peas ina pod: Unique peapodlike Ni/Ni3S2 nanochains and nickel sulfide hollow chains can be selectively synthesized by using a wet chemical approach. The sample (see graphic) provides an ideal structure to study the magnetization reversal properties by the chain-of-sphere model.

  8. Feature Articles

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    1. Gold Nanocages: A Novel Class of Multifunctional Nanomaterials for Theranostic Applications (pages 3684–3694)

      Jingyi Chen, Miaoxin Yang, Qiang Zhang, Eun Chul Cho, Claire M. Cobley, Chulhong Kim, Charles Glaus, Lihong V. Wang, Michael J. Welch and Younan Xia

      Article first published online: 4 OCT 2010 | DOI: 10.1002/adfm.201001329

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      Gold nanocages are finding use in a variety of biomedical applications. By engineering their photothermal properties, gold nanocages are being explored for cancer diagnosis and treatment: they can serve as contrast agents for photoacoustic mapping of sentinel lymph node—the first draining node from the primary tumor examined for cancer metastasis; they can be applied to eradicate a solid tumor locally and selectively with minimum side effects, and they can act as drug carriers for controlled release triggered by a near-infrared laser.

    2. Self-Assembled pH-Sensitive Nanoparticles: A Platform for Oral Delivery of Protein Drugs (pages 3695–3700)

      Kiran Sonaje, Kun-Ju Lin, Jiun-Jie Wang, Fwu-Long Mi, Chiung-Tong Chen, Jyuhn-Huarng Juang and Hsing-Wen Sung

      Article first published online: 14 OCT 2010 | DOI: 10.1002/adfm.201001014

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      pH-Sensitive nanoparticles composed of chitosan and poly-γ-glutamic acid are developed for the oral delivery of insulin. NPs infiltrate the mucus layer and disintegrate due to their pH sensitivity and release the loaded insulin near the surface of epithelial cells.

  9. Full Paper

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Essay
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    11. Frontispiece
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    1. Magnetic Alloy Nanorings Loaded with Gold Nanoparticles: Synthesis and Applications as Multimodal Imaging Contrast Agents (pages 3701–3706)

      Yang Lu, Ce Shi, Ming-Jun Hu, Yun-Jun Xu, Le Yu, Long-Ping Wen, Yang Zhao, Wei-Ping Xu and Shu-Hong Yu

      Article first published online: 7 OCT 2010 | DOI: 10.1002/adfm.201001201

      Thumbnail image of graphical abstract

      Multicomponent Ni7Co3alloy–Au nanorings can be fabricated on a large scale at room temperature using alloy nanorings as both reducing agent and sacrificial template in water. These novel alloy–Au hybrid nanorings can be used as multimodal imaging contrast agents and potentially as photothermal agents for cancer diagnosis and therapy.

  10. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Essay
    7. Feature Articles
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    1. Biocompatible Bright YVO4:Eu Nanoparticles as Versatile Optical Bioprobes (page 3707)

      Jie Shen, Ling-Dong Sun, Jia-Dan Zhu, Liu-He Wei, Hong-Fang Sun and Chun-Hua Yan

      Article first published online: 27 OCT 2010 | DOI: 10.1002/adfm.201090098

      Thumbnail image of graphical abstract

      As multipurpose photoluminescence probes, water-soluble YVO4:Eu nanoparticles prepared by one-pot hydrothermal route are successfully applied in fluoroimmunoassay, microchip detection, confocal microscopy imaging and spectral mapping of cells. The facile preparation, good solubility, high quantum yield, adequate photostability, narrow emission bandwidth, and low toxicity give YVO4:Eu nanoparticles great promise as a robust reinforcement for existing bioprobes.

  11. Full Papers

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    1. Biocompatible Bright YVO4:Eu Nanoparticles as Versatile Optical Bioprobes (pages 3708–3714)

      Jie Shen, Ling-Dong Sun, Jia-Dan Zhu, Liu-He Wei, Hong-Fang Sun and Chun-Hua Yan

      Article first published online: 7 SEP 2010 | DOI: 10.1002/adfm.201001264

      Thumbnail image of graphical abstract

      As multipurpose photoluminescence probes, water-soluble YVO4:Eu nanoparticles prepared by one-pot hydrothermal route are successfully applied in fluoroimmunoassay, microchip detection, confocal microscopy imaging and spectral mapping of cells. The facile preparation, good solubility, high quantum yield, adequate photostability, narrow emission bandwidth, and low toxicity give YVO4:Eu nanoparticles great promise as a robust reinforcement for existing bioprobes.

    2. A General Approach for Patterning Multiple Types of Cells Using Holey PDMS Membranes and Microfluidic Channels (pages 3715–3720)

      Bo Yuan, Yong Li, Dong Wang, Yunyan Xie, Yingyi Liu, Li Cui, Fuquan Tu, Hao Li, Hang Ji, Wei Zhang and Xingyu Jiang

      Article first published online: 14 OCT 2010 | DOI: 10.1002/adfm.201001298

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      Different kinds of cells are patterned on a variety of substrates by using microfluidic channels and holey poly(dimethylsiloxane) (PDMS) membranes. The substrate could be a variety of materials, including those with micro- and nanometer-scale structures. This method provides a new approach for studying many processes in vitro, caused by cell–cell and/or cell–substrate interactions.

      Corrected by:

      Correction: Correction: A General Approach for Patterning Multiple Types of Cells Using Holey PDMS Membranes and Microfl uidic Channels

      Vol. 21, Issue 12, 2174, Article first published online: 16 JUN 2011

    3. Stable Encapsulation of Quantum Dot Barcodes with Silica Shells (pages 3721–3726)

      Shang-Hsiu Hu and Xiaohu Gao

      Article first published online: 3 SEP 2010 | DOI: 10.1002/adfm.201000711

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      Quantum dot-doped mesoporous microbeads are encapsulated with silica for enhanced chemical stability. The encapsulated microbeads show negligible leaching when washed with organic solvents and become significantly more stable when treated with acid, base, and various crosslinking compounds.

    4. Monodisperse Pt3Fe Nanocubes: Synthesis, Characterization, Self-Assembly, and Electrocatalytic Activity (pages 3727–3733)

      Jun Zhang, Hongzhou Yang, Kaikun Yang, Jiye Fang, Shouzhong Zou, Zhiping Luo, Howard Wang, In-Tae Bae and Dae Young Jung

      Article first published online: 1 OCT 2010 | DOI: 10.1002/adfm.201000679

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      High-quality Pt3Fe nanocubes are prepared using a robust wet-chemical synthetic approach in which W(CO)6 was present. Structural characteristics, size-/shape-distribution, compositions, electrochemical activity towards small organic molecule oxidation as well as capability of assembling into simple cubic supercrystals of these Pt3Fe nanocubes are discussed. This study highlights that the catalyst performance may be improved by controlling the shape of particles.

    5. An Electrochemical Approach to PtAg Alloy Nanostructures Rich in Pt at the Surface (pages 3734–3741)

      Zhenmeng Peng, Hongjun You and Hong Yang

      Article first published online: 1 OCT 2010 | DOI: 10.1002/adfm.201001194

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      The surface and bulk compositions, size and architecture of Pt-Ag heterogeneous nanostructures are controlled synergistically by changing the upper potentials for the electrochemical dissolution of Ag from PtAg alloy nanoparticles. Pt-surface rich PtAg nanostructures are obtained and exhibit much higher activity than pure Pt as electrocatalysts in formic acid oxidation reaction.

    6. Porous Platinum Nanotubes for Oxygen Reduction and Methanol Oxidation Reactions (pages 3742–3746)

      Shaun M. Alia, Gang Zhang, David Kisailus, Dongsheng Li, Shuang Gu, Kurt Jensen and Yushan Yan

      Article first published online: 1 OCT 2010 | DOI: 10.1002/adfm.201001035

      Thumbnail image of graphical abstract

      This study focuses on the use of porous platinum nanotubes (PtNTs) with a thickness of 5 nm, an outer diameter of 60 nm, and a length of 5–20 μm as fuel cell catalysts. PtNTs demonstrate higher mass and specific activity for oxygen reduction and durability than the conventional platinum supported on carbon catalyst (Pt/C). PtNTs further illustrate greater specific activity and poison resistance for methanol oxidation than Pt/C and bulk platinum.

    7. Ionic-Liquid-Assisted Preparation of Carbon Nanotube-Supported Uniform Noble Metal Nanoparticles and Their Enhanced Catalytic Performance (pages 3747–3752)

      Haibin Chu, Yihong Shen, Liang Lin, Xiaojun Qin, Ge Feng, Ziyin Lin, Jinyong Wang, Haichao Liu and Yan Li

      Article first published online: 5 OCT 2010 | DOI: 10.1002/adfm.201001240

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      An ionic-liquid-assisted method is developed for the preparation of noble metal nanoparticles supported on carbon nanotubes (CNTs) with tunable diameter and very narrow size distribution, uniformly dispersed on CNTs. The composites show superior size-dependent catalytic performance both in the electrochemical oxidation of methanol and the selective oxidation of glycerol.

  12. Feature Articles

    1. Top of page
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    1. Switchable Adhesion on Liquid/Solid Interfaces (pages 3753–3764)

      Mingjie Liu and Lei Jiang

      Article first published online: 7 OCT 2010 | DOI: 10.1002/adfm.201001208

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      The dynamic behavior of water droplets on superhydrophobic surfaces can be controlled ranging from a low-adhesion rolling state to a high-adhesion pinning state.This Feature Article discusses several techniques that have been developed to switch the adhesion on liquid/solid interfaces, including tuning the surface chemical composition, tailoring the surface morphology, and applying external stimuli.

    2. Micro/Nanostructured Ordered Porous Films and Their Structurally Induced Control of the Gas Sensing Performances (pages 3765–3773)

      Lichao Jia and Weiping Cai

      Article first published online: 7 OCT 2010 | DOI: 10.1002/adfm.201001216

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      Various micro/nanostructured porous films, such as double- or mutilayer homo-pore-size, hetero-pore-size, and heterogeneous structures, can be constructed directly on any desired substrate (with flat, curved, or even rough surface). Gas-sensing performances with largely tunable parameters and both high sensitivity and fast response have been achieved only by controlling the microstructure of the porous films.

  13. Full Papers

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    1. Facile Fabrication of Two-Dimensionally Ordered Macroporous Silver Thin Films and Their Application in Molecular Sensing (pages 3774–3783)

      Guosong Hong, Cheng Li and Limin Qi

      Article first published online: 5 OCT 2010 | DOI: 10.1002/adfm.201001177

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      Freestanding, two-dimensionally ordered macroporous (2DOM) Ag thin films with adjustable periodic spacings and good mechanical robustness are fabricated via nanosphere lithography at the solution surface (NSLSS). When used for the specific detection of avidin molecules, the biosensor based on the 2DOM Ag thin films modified with biotinylated bovine serum albumin exhibits excellent performance with low detection limit and broad working range.

    2. Bioinspired Water-Vapor-Responsive Organic/Inorganic Hybrid One-Dimensional Photonic Crystals with Tunable Full-Color Stop Band (pages 3784–3790)

      Zhanhua Wang, Junhu Zhang, Jing Xie, Chuang Li, Yunfeng Li, Sen Liang, Zhicheng Tian, Tieqiang Wang, Hao Zhang, Haibo Li, Weiqing Xu and Bai Yang

      Article first published online: 14 SEP 2010 | DOI: 10.1002/adfm.201001195

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      Bioinspired organic/inorganic hybrid one-dimensional photonic crystals(1DPCs) are prepared by spin-coating, which is a simple, reproducible, and low-cost approach. The 1DPCs possess fast water-vapor responsiveness and reversible full-color switching. The color of the 1DPCs varies from blue to red under differing humidities, covering the whole visible range. The as-prepared 1DPCs successfully combine structural color and stimuli sensitivity ; they are promising materials for colorful detection in the chemical and biological fields.

    3. Branched Silicon Nanotubes and Metal Nanowires via AAO-Template-Assistant Approach (pages 3791–3796)

      Bensong Chen, Qiaoling Xu, Xianglong Zhao, Xiaoguang Zhu, Mingguang Kong and Guowen Meng

      Article first published online: 23 SEP 2010 | DOI: 10.1002/adfm.201001190

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      Branched and multi-generation-branched silicon nanotubes and metal (Au and Ni) nanowires have been achieved by filling the branched and multi-generation-branched nanochannels of the anodic aluminum oxide templates, which are created by sequentially reducing the applied anodizing voltage multiple times during the anodization of aluminum.

    4. Axial Compression of Hierarchically Structured Carbon Nanotube Fiber Embedded in Epoxy (pages 3797–3803)

      Yun Gao, Jinzhu Li, Luqi Liu, Wenjun Ma, Weiya Zhou, Sishen Xie and Zhong Zhang

      Article first published online: 1 OCT 2010 | DOI: 10.1002/adfm.201001227

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      The axial compression behavior of embedded carbon nanotube (CNT) fibers is investigated with the assistance of in situ Raman spectroscopy. The prominent stiffening and strengthening roles of embedded CNT fibers are found to be dominated by the constituent CNTs within the fiber. Additionally, CNT fiber exhibits notable flexibility without permanent deformation or failure under large-strain compression (see figure, bottom), in comparison with high-modulus carbon fiber (HMCF, top in figure).

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