Particle & Particle Systems Characterization

Cover image for Vol. 31 Issue 7

July 2014

Volume 31, Issue 7

Pages 715–809

  1. Cover Picture

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      Silicon Quantum Dots: Water-Dispersible Silicon-Quantum-Dot-Containing Micelles Self-Assembled from an Amphiphilic Polymer (Part. Part. Syst. Charact. 7/2014) (page 715)

      Xiaodong Pi, Ting Yu and Deren Yang

      Version of Record online: 16 JUL 2014 | DOI: 10.1002/ppsc.201470025

      Thumbnail image of graphical abstract

      Excellent dispersion of silicon quantum dots (Si QDs) in water is realized by combining the processes of hydrosilylation and self-assembly. As described by X. D. Pi and co-workers on page 751, the size of self-assembled Si QD micelles can be tuned from 10 to 100 nm. This image schematically shows red-light-emitting Si QDs contained in the water-dispersible micelles under ultraviolet illumination.

  2. Inside Front Cover

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      Solar Cells: Triple-Yolked ZnO/CdS Hollow Spheres for Semiconductor-Sensitized Solar Cells (Part. Part. Syst. Charact. 7/2014) (page 716)

      Xi Wang, Zhenhua Chen, Dequan Liu, Wei Tian, Qi Wang, Chao Zhang, Jiangwei Liu, Liyuan Han, Yoshio Bando and Dmitri Golberg

      Version of Record online: 16 JUL 2014 | DOI: 10.1002/ppsc.201470026

      Thumbnail image of graphical abstract

      On page 757, X. Wang and co-workers reported on a new kind of complex hollow structure: ZnO/CdS triple-yolked hollow spheres (TYs). The uniqueness of TY morphology leads to an enhancement in energy conversion efficiency for semiconductor-sensitized solar cells, as compared with single-shelled hollow spheres. This improvement presents advantages of TYs in the generation of light scattering.

  3. Back Cover

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      Spray Coating: Transparent and Superamphiphobic Surfaces from One-Step Spray Coating of Stringed Silica Nanoparticle/Sol Solutions (Part. Part. Syst. Charact. 7/2014) (page 811)

      Dengteng Ge, Lili Yang, Youfa Zhang, Yudi Rahmawan and Shu Yang

      Version of Record online: 16 JUL 2014 | DOI: 10.1002/ppsc.201470029

      Thumbnail image of graphical abstract

      Transparent and superamphiphobic surfaces that repel both water and oils are created by S. Yang on co-workers using one-step spray coating from stringed amphiphilic silica nanoparticles in an amphiphilic sol, forming fractal-like nanoporous structures. As discussed on page 763, the coating is applicable to a variety of planar and curved substrates without any pre- or post-treatment.

  4. Masthead

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      Masthead: (Part. Part. Syst. Charact. 7/2014)

      Version of Record online: 16 JUL 2014 | DOI: 10.1002/ppsc.201470028

  5. Contents

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  6. Reviews

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    1. Survey of Plasmonic Nanoparticles: From Synthesis to Application (pages 721–744)

      Florian Kretschmer, Stefan Mühlig, Stephanie Hoeppener, Andreas Winter, Martin D. Hager, Carsten Rockstuhl, Thomas Pertsch and Ulrich S. Schubert

      Version of Record online: 5 MAR 2014 | DOI: 10.1002/ppsc.201300309

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      The tunable structure and spatial ­arrangement of plasmonic nano­particles allows creation of materials with tailor-made optical properties. Recent ­develop­ments regarding the synthesis of ­nanoparticles and their arrangement in defined configurations are highlighted in this review. Additional considerations regarding characterization and separation techniques as well as the theoretical background and potential applications are provided here.

  7. Communications

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    1. Degradation of Graphene by Hydrogen Peroxide (pages 745–750)

      WeiLiang Xing, Gaurav Lalwani, Irene Rusakova and Balaji Sitharaman

      Version of Record online: 24 FEB 2014 | DOI: 10.1002/ppsc.201300318

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      Degradation of graphene by H2O2 at physiologically and environmentally relevant concentrations (1–10 000 × 10−6m) is reported. Exposure to H2O2 leads to the formation of holes on graphene sheets. The degradation phenomenon is dependent on concentration of H2O2 and incubation time.

  8. Full Papers

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    3. Inside Front Cover
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    5. Masthead
    6. Contents
    7. Reviews
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    9. Full Papers
    1. Water-Dispersible Silicon-Quantum-Dot-Containing Micelles Self-Assembled from an Amphiphilic Polymer (pages 751–756)

      Xiaodong Pi, Ting Yu and Deren Yang

      Version of Record online: 4 MAR 2014 | DOI: 10.1002/ppsc.201300346

      Thumbnail image of graphical abstract

      Excellent dispersion of silicon quantum dots (Si QDs) in water, with stabilized photoluminescence quantum yields of ≈ 24% at a wavelength of ≈ 680 nm, is realized by combining the processes of hydrosilylation and self-assembly. The size of self-assembled Si-QD micelles may be tuned in the range from 10 to 100 nm. It is found that Si-QD micelles exhibit excellent photostability.

    2. Triple-Yolked ZnO/CdS Hollow Spheres for Semiconductor-Sensitized Solar Cells (pages 757–762)

      Xi Wang, Zhenhua Chen, Dequan Liu, Wei Tian, Qi Wang, Chao Zhang, Jiangwei Liu, Liyuan Han, Yoshio Bando and Dmitri Golberg

      Version of Record online: 2 MAR 2014 | DOI: 10.1002/ppsc.201300365

      Thumbnail image of graphical abstract

      In this work, ZnO/CdS triple-yolked hollow spheres (TYs) are successfully fabricated using the bubble-assisted Ostwald ripening and appropriate ion-exchange method. The uniqueness of the TY morphology leads to a 37% enhancement in energy conversion efficiency for SSSCs, as compared with single-shelled hollow spheres.

    3. Transparent and Superamphiphobic Surfaces from One-Step Spray Coating of Stringed Silica Nanoparticle/Sol Solutions (pages 763–770)

      Dengteng Ge, Lili Yang, Youfa Zhang, Yudi Rahmawan and Shu Yang

      Version of Record online: 20 FEB 2014 | DOI: 10.1002/ppsc.201300382

      Thumbnail image of graphical abstract

      Transparent and superamphiphobic surfaces are prepared by one-step spray coating of stringed amphiphilic silica nanoparticles mixed with an amphiphilic sol onto a variety of planar and curved substrates, including glass, plastic, metal, and fabrics, forming a fractal-like nanoporous network.

    4. Preparation and Characterization of the Fluorescent Carbon Dots Derived from the Lithium-Intercalated Graphite used for Cell Imaging (pages 771–777)

      Xiaohua Zhu, Haiying Wang, Qifang Jiao, Xin Xiao, Xiaoxi Zuo, Yong Liang, Junmin Nan, Jufang Wang and Lishi Wang

      Version of Record online: 10 MAR 2014 | DOI: 10.1002/ppsc.201300327

      Thumbnail image of graphical abstract

      Zero-dimensional fluorescent carbon dots (CDs) that are used as a cell-imaging reagent are prepared by using a simple and effective route employing lithium-­intercalated graphite from lithium-ion batteries as a carbon source. These CD products are water-soluble, nanosized (approximately 3.5 nm), and biocompatible and can easily enter HeLa cells to act as a cell-imaging reagent without any ­further functionalization.

    5. Green Template-Free Synthesis of Mesoporous Ternary CoNi–Mn Oxide Nanowires Towards High-Performance Electrochemical Capacitors (pages 778–787)

      Changzhou Yuan, Longhai Zhang, Linrui Hou, Gang Pang and Xiaogang Zhang

      Version of Record online: 10 MAR 2014 | DOI: 10.1002/ppsc.201300333

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      One-dimensional mesoporous ternary Co–Ni–Mn oxide nanowires have been controllably fabricated via a green scalable template-free strategy and applied as an intriguing low-cost electrode with large specific capacitance and excellent cycling stability at high rates for advanced supercapacitors.

    6. Enhancement of the 808 nm Photothermal Effect of Gold Nanorods by Thiol-Induced Self-Assembly (pages 788–793)

      Yu Sheng, Min Lin, Xiangwei Li, Hongxia Hao, Xiaoying Lin, Hongchen Sun and Hao Zhang

      Version of Record online: 24 FEB 2014 | DOI: 10.1002/ppsc.201300351

      Thumbnail image of graphical abstract

      One-dimensional (1D) self-assembly architectures of gold nanorods are fabricated to enhance the photothermal effect at near-infrared region via a thiol-induced method. The improved photothermal effect is attributed to the efficient longitudinal surface plasmon coupling along the 1D architecture.

    7. The Cellular Interactions of PEGylated Gold Nanoparticles: Effect of PEGylation on Cellular Uptake and Cytotoxicity (pages 794–800)

      Stefaan J. Soenen, Bella B. Manshian, Abuelmagd M. Abdelmonem, José-María Montenegro, Sisareuth Tan, Lieve Balcaen, Frank Vanhaecke, Alain R. Brisson, Wolfgang J. Parak, Stefaan C. De Smedt and Kevin Braeckmans

      Version of Record online: 24 FEB 2014 | DOI: 10.1002/ppsc.201300357

      Thumbnail image of graphical abstract

      Nanoparticle PEGylation influences cell interaction. PEGylation of gold nanoparticles is studied under both identical nanoparticle doses and similar intracellular nanoparticle concentrations. PEGylation is found to impede cell uptake in a cell-specific manner and impedes nanoparticle effects on cell morphology. However, PEGylation increases oxidative stress and does not always appear to be optimally suited for in vitro cell labeling.

    8. Hydrothermal Preparation of Photoluminescent Graphene Quantum Dots Characterized Excitation-Independent Emission and its Application as a Bioimaging Reagent (pages 801–809)

      Xiaohua Zhu, Xin Xiao, Xiaoxi Zuo, Yong Liang and Junmin Nan

      Version of Record online: 10 MAR 2014 | DOI: 10.1002/ppsc.201300375

      Thumbnail image of graphical abstract

      Zero-dimensional photoluminescent (PL) graphene quantum dots (GQDs) that can be used as a cell-imaging reagent are prepared by a hydrothermal route. The as-prepared GQDs emit bright blue luminescence with up-conversion properties in a water solution at neutral pH. Most interestingly, they indicate excitation-independent emission characteristics, and the surface state is demonstrated to have a key role in the PL properties.

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