Advanced Functional Materials

Cover image for Vol. 18 Issue 15

August 11, 2008

Volume 18, Issue 15

Pages 2139–2274

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Full Papers
    6. Index
    1. Cover Picture: A Birefringent and Transparent Electrical Conductor (Adv. Funct. Mater. 15/2008)

      Kenneth D. Harris, Andy C. van Popta, Jeremy C. Sit, Dirk J. Broer and Michael J. Brett

      Version of Record online: 6 AUG 2008 | DOI: 10.1002/adfm.200890059

      Thumbnail image of graphical abstract

      Indium tin oxide (ITO) is well known as a transparent material that is also capable of conducting electrical signals. On page 2147, Ken Harris, Mike Brett, and colleagues report the engineering of two additional, more unconventional properties into ITO. By depositing from an oblique angle and continuously repositioning the substrate during deposition, a large and tunable birefringence is introduced into thin ITO films, and the coatings are also shown to be capable of aligning liquid crystals.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Full Papers
    6. Index
    1. Inside Front Cover: Fabrication of Low-Threshold 3D Void Structures inside a Polymer Matrix Doped with Gold Nanorods (Adv. Funct. Mater. 15/2008)

      Kyongsik Choi, Peter Zijlstra, James W. M. Chon and Min Gu

      Version of Record online: 6 AUG 2008 | DOI: 10.1002/adfm.200890060

      Thumbnail image of graphical abstract

      The image shows photothermally enhanced, low threshold micro-explosion and void generation inside a poly(vinyl alcohol) matrix doped with gold nanorods as nano-heat-sensitizers. The efficient photothermal energy conversion was induced via matching the recording femtosecond pulsed laser wavelength to the surface plasmon resonance absorption of gold nanorods in near-infrared. This technique, reported by Kyongsik Choi and co-workers on p. 2237 can be applied to 3D optical patterning and data storage.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Full Papers
    6. Index
  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Full Papers
    6. Index
    1. A Birefringent and Transparent Electrical Conductor (pages 2147–2153)

      Kenneth D. Harris, Andy C. van Popta, Jeremy C. Sit, Dirk J. Broer and Michael J. Brett

      Version of Record online: 23 JUL 2008 | DOI: 10.1002/adfm.200800146

      Thumbnail image of graphical abstract

      Thin film coatings that are transparent in the visible, electrically conducting, adjustably birefringent and capable of aligning calamitic liquid crystals are fabricated by oblique or glancing angle deposition of indium tin oxide. The coatings integrate four vital liquid crystal display attributes into one layer formed in a single deposition process.

    2. Synthesis of Cu2PO4OH Hierarchical Superstructures with Photocatalytic Activity in Visible Light (pages 2154–2162)

      In-Sun Cho, Dong Wook Kim, Sangwook Lee, Chae Hyun Kwak, Shin-Tae Bae, Jun Hong Noh, Sung Hun Yoon, Hyun Suk Jung, Dong-Wan Kim and Kug Sun Hong

      Version of Record online: 28 JUL 2008 | DOI: 10.1002/adfm.200800167

      Thumbnail image of graphical abstract

      Various three-dimensional hierarchical superstructures of Cu2PO4OH are synthesized by simply adjusting the pH. With an increase in pH from 2.5 to 7.0, the morphology of Cu2PO4OH varies from microrods to walnut-shaped microspheres of self-assembled nanoparticles (see image).

    3. Electropolymerized Self-Assembled Monolayers of a 3,4-Ethylenedioxythiophene-Thiophene Hybrid System (pages 2163–2171)

      Maiténa Oçafrain, Truong Khoa Tran, Philippe Blanchard, Stéphane Lenfant, Sylvie Godey, Dominique Vuillaume and Jean Roncali

      Version of Record online: 28 JUL 2008 | DOI: 10.1002/adfm.200800304

      Thumbnail image of graphical abstract

      Monolayers of a low oxidation potential thiophene–EDOT system on gold can be electropolymerized into a more extended electroactive conjugated system thus leading to a large increase of the tunnel current measured by conducting AFM.

    4. Silk Fibroin-Regulated Crystallization of Calcium Carbonate (pages 2172–2179)

      Cheng Cheng, Zhengzhong Shao and Fritz Vollrath

      Version of Record online: 15 JUL 2008 | DOI: 10.1002/adfm.200701130

      Thumbnail image of graphical abstract

      A novel micrometer-sized hybrid of silk fibroin and CaCO3, with a hollow structure and unusual rice-like shape, is synthesized in the presence of regenerated silk fibroin via aggregation-mediated crystallization. The hybrid superstructure can be regulated by the conformation and assembly/aggregation parameters of the fibroin protein.

    5. Efficient TiO2 Photocatalysts from Surface Hybridization of TiO2 Particles with Graphite-like Carbon (pages 2180–2189)

      Li-Wu Zhang, Hong-Bo Fu and Yong-Fa Zhu

      Version of Record online: 21 JUL 2008 | DOI: 10.1002/adfm.200701478

      Thumbnail image of graphical abstract

      Surface hybridization of TiO2 with graphite carbon produces efficient photocatalysts. The electronic contact between semiconductor and graphite layers results in the efficient separation of electron–hole pairs thereby minimizing electron–hole recombination. This leads to a higher photocatalytic activity under UV irradiation. This approach also extends TiO2's response into the visible range of the solar spectrum due to the electronic coupling of graphite-carbon π states and conduction band states on the TiO2.

    6. Rhodium Nanoparticle Encapsulated in a Porous Carbon Shell as an Active Heterogeneous Catalyst for Aromatic Hydrogenation (pages 2190–2196)

      Takashi Harada, Shigeru Ikeda, Yun Hau Ng, Takao Sakata, Hirotaro Mori, Tsukasa Torimoto and Michio Matsumura

      Version of Record online: 28 JUL 2008 | DOI: 10.1002/adfm.200701442

      Thumbnail image of graphical abstract

      Rhodium (Rh) nanoparticles encapsulated in a hollow porous carbon shell exhibited a high level of activity for aromatic and heterocyclic hydrogenation in aqueous media because of the unique structure, i.e., the lateral carbon shell offers a microenvironment with a high concentration of organic substrates inside the shell where active “ligand-free” Rh nanoparticles are present (see figure).

    7. Gold Nanoparticle–Colloidal Carbon Nanosphere Hybrid Material: Preparation, Characterization, and Application for an Amplified Electrochemical Immunoassay (pages 2197–2204)

      Rongjing Cui, Chang Liu, Jianming Shen, Di Gao, Jun-Jie Zhu and Hong-Yuan Chen

      Version of Record online: 14 JUL 2008 | DOI: 10.1002/adfm.200701340

      Thumbnail image of graphical abstract

      Colloidal carbon nanospheres have been rapidly prepared and gold nanoparticles (AuNPs) successfully assembled on the surface of the carbon nanospheres. The resulting AuNP/C hybrids have been conjugated with horseradish peroxidase-labeled antibody (HRP-Ab2) to fabricate HRP-Ab2-AuNP/C bioconjugates, which are then used as a label system for the sensitive detection of protein (see figure).

    8. Multifunctional Microporous MOFs Exhibiting Gas/Hydrocarbon Adsorption Selectivity, Separation Capability and Three-Dimensional Magnetic Ordering (pages 2205–2214)

      Kunhao Li, David H. Olson, Jeong Yong Lee, Wenhua Bi, Ke Wu, Tan Yuen, Qiang Xu and Jing Li

      Version of Record online: 18 JUL 2008 | DOI: 10.1002/adfm.200800058

      Thumbnail image of graphical abstract

      Crystalline microporous metal-organic framework materials containing zigzag channels, [M3(HCOO)6] · DMF (M = Mn, Co, Ni), are synthesized and characterized. Their multifunctionality in hydrogen adsorption/storage, hydrocarbon adsorption and separation, as well as their magnetic properties, are discussed.

    9. Nature-Inspired Boiling Enhancement by Novel Nanostructured Macroporous Surfaces (pages 2215–2220)

      Shanghua Li, Richard Furberg, Muhammet S. Toprak, Björn Palm and Mamoun Muhammed

      Version of Record online: 21 JUL 2008 | DOI: 10.1002/adfm.200701405

      Thumbnail image of graphical abstract

      Nucleation boiling from partially-electrodeposited nanostructured macroporous (NMp) surfaces is investigated (see figure). Even at very low heat flux, the untreated copper reference surface remains in natural convection, while the deposited surface is boiling vigorously referring to a much higher heat transfer co-efficient of the NMp surface.

    10. Biomimetic Hydroxyapatite Crystallization in Gelatin Nanoparticles Synthesized Using a Miniemulsion Process (pages 2221–2227)

      Anitha Ethirajan, Ulrich Ziener, Andrey Chuvilin, Ute Kaiser, Helmut Cölfen and Katharina Landfester

      Version of Record online: 6 AUG 2008 | DOI: 10.1002/adfm.200800048

      Thumbnail image of graphical abstract

      A biomimetic approach for the synthesis of hybrid hydroxyapatite (HAP)/gelatin nanoparticles using gelatin nanoparticles synthesized via the inverse miniemulsion process as template is reported. The formation of HAP in the nanoconfinement follows Ostwald's rule of stages, where initially formed amorphous calcium phosphate transforms into single crystalline HAP. Such a hybrid material represents a very promising candidate for application in tissue engineering.

    11. Intramolecular Dipole Coupling and Depolarization in Self-Assembled Monolayers (pages 2228–2236)

      Maria L. Sushko and Alexander L. Shluger

      Version of Record online: 11 JUL 2008 | DOI: 10.1002/adfm.200701305

      Thumbnail image of graphical abstract

      Engineering of the metal work function with self-assembled monolayers has been modeled theoretically. We show that the use of weakly polarizable spacers between the polar groups in the self-assembled monolayers is beneficial for accessing a wider range of work-function changes.

    12. Fabrication of Low-Threshold 3D Void Structures inside a Polymer Matrix Doped with Gold Nanorods (pages 2237–2245)

      Kyongsik Choi, Peter Zijlstra, James W. M. Chon and Min Gu

      Version of Record online: 15 JUL 2008 | DOI: 10.1002/adfm.200800277

      Thumbnail image of graphical abstract

      A low-threshold 3D void formation mechanism and its 3D optical data storage application have been proposed for a PVA matrix doped with gold nanorods via femtosecond near-field engineering. Via demonstration of the nanoexploded void structure and theoretical verification of the enhanced photothermal effect, it is shown that the threshold level for void generation can decrease by up to one order of magnitude without critical damage to the matrix.

    13. Control of the Surface Composition of a Conducting-Polymer Complex Film to Tune the Work Function (pages 2246–2252)

      Tae-Woo Lee and Youngsu Chung

      Version of Record online: 23 JUL 2008 | DOI: 10.1002/adfm.200700766

      Thumbnail image of graphical abstract

      The work function of the polymeric complex films of poly(3,4-ethylenedioxy thiophene) (PEDOT) doped with a polystyrene sulfonate (PSS) formed by a single spin-coating (see figure) can be greatly increased up to 5.44 eV by increasing the surface concentration of the PSS dopant. As a result, we improved the device efficiency and the lifetime of green emitting polymer light-emitting diodes (PLEDs).

    14. Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers (pages 2253–2260)

      Eva L. Kirkby, Joseph D. Rule, Véronique J. Michaud, Nancy R. Sottos, Scott R. White and Jan-Anders E. Månson

      Version of Record online: 23 JUL 2008 | DOI: 10.1002/adfm.200701208

      Thumbnail image of graphical abstract

      The performance of self-healing polymers is improved by embedding shape-memory alloy wires and activating them during healing. Increased healing efficiency is achieved by crack closure and heating of the healing agent during polymerization.

      Corrected by:

      Correction: Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers

      Vol. 18, Issue 17, Version of Record online: 5 SEP 2008

    15. Templateless Synthesis of Polygonal Gold Nanoparticles: An Unsupported and Reusable Catalyst with Superior Activity (pages 2261–2271)

      Md. Harunar Rashid and Tarun K. Mandal

      Version of Record online: 21 JUL 2008 | DOI: 10.1002/adfm.200800085

      Thumbnail image of graphical abstract

      Polygonal gold nanoparticles (GNPs) are synthesized by an in-situ templateless reduction technique (see figure) using ferric ammonium citrate. These polygonal GNPs act as a highly active unsupported catalyst for the borohydride reduction of three isomeric nitrophenols and also for the aerobic oxidation of different D-hexoses. The catalytic activity of these polygonal GNPs is much higher (ca. 300–1000 times) than their spherical counterparts and they can be reused several times for nitrophenol reduction.

  5. Index

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Full Papers
    6. Index

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