Advanced Functional Materials

Cover image for Vol. 19 Issue 2

January 23, 2009

Volume 19, Issue 2

Pages 179–332

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Feature Article
    6. Full Papers
    7. Index
    1. Cover Picture: Highly Fluorescent Poly(dimethylsiloxane) for On-Chip Temperature Measurements (Adv. Funct. Mater. 2/2009)

      Jianhua Zhou, Hui Yan, Yizhe Zheng and Hongkai Wu

      Article first published online: 9 JAN 2009 | DOI: 10.1002/adfm.200990000

      Thumbnail image of graphical abstract

      Highly fluorescent poly(dimethylsiloxane) (PDMS) doped with ZnO quantum dots (QDs) is conveniently generated and used directly for whole-chip temperature measurements, as described by Hongkai Wu and co-workers on page 324. A model is also given to elucidate the temperature sensitivity and extremely high stability of this material by studying the bonding between the QDs and the PDMS.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Feature Article
    6. Full Papers
    7. Index
    1. Inside Front Cover: Novel Engineered Ion Channel Provides Controllable Ion Permeability for Polyelectrolyte Microcapsules Coated with a Lipid Membrane (Adv. Funct. Mater. 2/2009)

      Andrew R. Battle, Stella M. Valenzuela, Adam Mechler, Ryan J. Nichols, Slavica Praporski, Isabelle L. di Maio, Hedayetul Islam, Agnès P. Girard-Egrot, Bruce A. Cornell, Jog Prashar, Frank Caruso, Lisandra L. Martin and Donald K. Martin

      Article first published online: 9 JAN 2009 | DOI: 10.1002/adfm.200990001

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      In their Full Paper on page 201, Donald Martin and co-workers describe the covering of polyelectrolyte microcapsules with a lipid bilayer that incorporates a novel engineered ion channel to provide a functional capability to control transport across the microcapsule wall. The cover image shows atomic-force microscopy images of these 8-layer polyelectroctrolyte capsules recorded using tapping mode in an aqueous environment. The capsules can be seen to collapse in a folded manner, with an occasional wrinkle that “absorbs” the extra surface area when flattening the spherical surface.

  3. Contents

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

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Feature Article
    6. Full Papers
    7. Index
    1. Shape-Controlled Synthesis of Pd Nanocrystals in Aqueous Solutions (pages 189–200)

      Byungkwon Lim, Majiong Jiang, Jing Tao, Pedro H. C. Camargo, Yimei Zhu and Younan Xia

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200801439

      Thumbnail image of graphical abstract

      Pd nanocrystals with well-controlled shapes are synthesized in aqueous solutions. A number of parameters, such as the reduction kinetics, oxidative etching, and surface capping, which can be combined to provide an effective route to control the final shape of Pd nanocrystals are discussed. The ability to control the shape of Pd nanocrystals provides a great opportunity to tailor and systematically investigate their catalytic, electrical, and plasmonic properties.

  5. Full Papers

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Feature Article
    6. Full Papers
    7. Index
    1. Novel Engineered Ion Channel Provides Controllable Ion Permeability for Polyelectrolyte Microcapsules Coated with a Lipid Membrane (pages 201–208)

      Andrew R. Battle, Stella M. Valenzuela, Adam Mechler, Ryan J. Nichols, Slavica Praporski, Isabelle L. di Maio, Hedayetul Islam, Agnès P. Girard-Egrot, Bruce A. Cornell, Jog Prashar, Frank Caruso, Lisandra L. Martin and Donald K. Martin

      Article first published online: 24 NOV 2008 | DOI: 10.1002/adfm.200800483

      Thumbnail image of graphical abstract

      Hollow polyelectrolyte microcapsules are produced to function as biomimetic artificial cells by adding a lipid bilayer membrane and incorporating novel engineered bis-gA ion channels that are controllable to modulate ion transport from the microcapsules (see figure). This engineered micro-/nanosystem offers potential applications in physiologically relevant delivery or sensing applications.

    2. A Combinatorial Approach for Colorimetric Differentiation of Organic Solvents Based on Conjugated Polymer-Embedded Electrospun Fibers (pages 209–214)

      Jaewon Yoon, Young-Sik Jung and Jong-Man Kim

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800963

      Thumbnail image of graphical abstract

      Arrays of conjugated polymer, polydiacetylene (PDA)-embedded microfibers are constructed by electrospinning poly(ethylene oxide) solutions containing various ratios of two diacetylene monomers. Unique color patterns are developed when the PDA sensor arrays are exposed to organic solvents (see image), enabling direct differentiation of the solvents.

    3. Near-Infrared Mesoporous Silica Nanoparticles for Optical Imaging: Characterization and In Vivo Biodistribution (pages 215–222)

      Chia-Hung Lee, Shih-Hsun Cheng, Yu-Jing Wang, Yu-Ching Chen, Nai-Tzu Chen, Jeffrey Souris, Chin-Tu Chen, Chung-Yuan Mou, Chung-Shi Yang and Leu-Wei Lo

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800753

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      Indocyanine green (ICG)-functionalized mesoporous silica nanoparticles (MSNs) for in vivo near-infrared optical imaging with high efficiency are presented for the first time. The in vivo biodistribution of MSNs-ICG in anesthetized rat demonstrates a rather strong and stable fluorescence. TEM images and elemental analysis of the tissue after administration further supported the physical and quantitative residences of MSN-TA-ICG in different major organs.

    4. Selective Zinc(II)-Ion Fluorescence Sensing by a Functionalized Mesoporous Material Covalently Grafted with a Fluorescent Chromophore and Consequent Biological Applications (pages 223–234)

      Krishanu Sarkar, Koushik Dhara, Mahasweta Nandi, Partha Roy, Asim Bhaumik and Pradyot Banerjee

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200800888

      Thumbnail image of graphical abstract

      Selective Sensing: A dialdehyde fluorophore has been grafted over highly ordered 2D-hexagonal mesoporous silica, and the resulting mesoporous material shows unique sensing for zinc(II) in trace amounts together with a drastic enhancement in fluorescence intensity (see figure). Fluorescence imaging (figure inset) allows the intracellular Zn2+ concentration to be monitored when cultured living cells (A375 human melanoma and HeLa cells) are incubated with the functionalized silica.

    5. Preparation of Functional Hybrid Glass Material from Platinum (II) Complexes for Broadband Nonlinear Absorption of Light (pages 235–241)

      Roman Zieba, Cédric Desroches, Frédéric Chaput, Marcus Carlsson, Bertil Eliasson, Cesar Lopes, Mikael Lindgren and Stephane Parola

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200801008

      Thumbnail image of graphical abstract

      Siloxane-based hybrid materials from trans-di(arylalkynyl)diphosphine platinum(II) complexes are prepared through a modified sol–gel process. Optical power limiting for the hybrid glass shows broadband nonlinear absorption throughout the whole visible wavelength range with low clamping values compatible with OPL devices (see figure).

    6. Nanoaggregate-Embedded Beads as Novel Raman Labels for Biodetection (pages 242–248)

      Ping-Ji Huang, Lai-Kwan Chau, Tzyy-Schiuan Yang, Li-Lin Tay and Tai-Tsung Lin

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800961

      Thumbnail image of graphical abstract

      Nanoaggregate-embedded beads (NAEBs) are silica-coated, dye-induced aggregates of a small number of gold nanoparticles (see figure). The aggregates provide strong SERS enhancement, and their sizes can be controlled between 30 and 60 nm. Bioconjugated NAEBs are useful as Raman tags for biodetection, and the potential of pathogen detection application using the biotin-modified polystyrene microspheres to mimic pathogenic bacteria is demonstrated.

    7. Bifunctional Gd2O3/C Nanoshells for MR Imaging and NIR Therapeutic Applications (pages 249–258)

      Chih-Chia Huang, Chia-Hao Su, Wei-Ming Li, Tzu-Yu Liu, Jyh-Horng Chen and Chen-Sheng Yeh

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200801454

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      This paper reports the dual function of Gd2O3/C nanoshells as MR image contrast enhancers and NIR-triggered cancer cell kills for biomedical application. Gd2O3/C nanoshells consisting of shell-like nanostructures and hollow cores show MR imaging that can be switched from a positive Gd2O3/C contrast effect to a negative Gd2O3/C@PSMA contrast effect. Gd2O3/C@PSMA nanoshells conjugated with anti-EGFR antibodies are further used for targeting and destroying A549 lung cancer cells by means of NIR-triggered killing capabilfity.

    8. Balancing Intermolecular and Molecule–Substrate Interactions in Supramolecular Assemblies (pages 259–264)

      Dimas G. de Oteyza, Iñaki Silanes, Miguel Ruiz-Osés, Esther Barrena, Bryan P. Doyle, Andrés Arnau, Helmut Dosch, Yutaka Wakayama and J. Enrique Ortega

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200801453

      Thumbnail image of graphical abstract

      Self-assembled binary layers of DIP and F16CuPc, two molecules with donor and acceptor character, respectively, are investigated. By a multitechnique approach, a detailed study of their structural and electronic properties is performed. In reference to the associated single-component layers, the growth of binary layers results in films with strongly enhanced intermolecular interactions, and consequently reduced molecule–substrate interactions.

    9. Lithium-Catalyzed Dehydrogenation of Ammonia Borane within Mesoporous Carbon Framework for Chemical Hydrogen Storage (pages 265–271)

      Li Li, Xiangdong Yao, Chenghua Sun, Aijun Du, Lina Cheng, Zhonghua Zhu, Chengzhong Yu, Jin Zou, Sean C. Smith, Ping Wang, Hui-Ming Cheng, Ray L. Frost and Gao Qing (Max) Lu

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200801111

      Thumbnail image of graphical abstract

      Synergistic effects of nano confinement within CMK3 and Li catalysis enhance the hydrogen release from ammonia borane (AB) to ∼7wt% at temperatures as low as 60oC (see figure), which satisfies the requirements of the US Department of Energy for hydrogen storage. The thermodynamics of hydrogen release from AB is modified via these synergistic effects and the release of undesirable volatile products, for example ammonia and borazine, is eliminated.

    10. A Densely and Uniformly Packed Organic Semiconductor Based on Annelated β-Trithiophenes for High-Performance Thin Film Transistors (pages 272–276)

      Lin Tan, Lei Zhang, Xi Jiang, Xiaodi Yang, Linjun Wang, Zhaohui Wang, Liqiang Li, Wenping Hu, Zhigang Shuai, Lin Li and Daoben Zhu

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800933

      Thumbnail image of graphical abstract

      A novel semiconductor based on annelated β-trithiophenes is shown to possess an extraordinarily compressed packing mode combining edge-to-face π–π interactions and S…S interactions in single crystals (see figure), which is favorable for more effective charge transporting. Accordingly, a device incorporating this semiconductor shows remarkably high charge carrier mobility and on/off ratio of 4.6 × 107 for vacuum-deposited thin films.

    11. Conjugated Polyelectrolytes as Light-Up Macromolecular Probes for Heparin Sensing (pages 277–284)

      Kan-Yi Pu and Bin Liu

      Article first published online: 18 DEC 2008 | DOI: 10.1002/adfm.200800960

      Thumbnail image of graphical abstract

      Conjugated polyelectrolytes can be used as light-up probes for chemical and biomolecular sensing. Cationic poly(fluorene-alt-benzothiadiazole)s have low fluorescence in aqueous solution and exhibit aggregation-enhanced fluorescence, which make them macromolecular probes for heparin detection and quantification.

    12. Enzyme-Mediated Deposition of a TiO2 Coating onto Biofunctionalized WS2 Chalcogenide Nanotubes (pages 285–291)

      Muhammad Nawaz Tahir, Filipe Natalio, Helen Annal Therese, Aswani Yella, Nadine Metz, Muhammad Raza Shah, Enrico Mugnaioli, Rüdiger Berger, Patrick Theato, Heinz-Christoph Schröder, Werner E. G. Müller and Wolfgang Tremel

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800841

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      WS2 nanotubes are functionalized with polymeric ligands by complexation with a combination of Ni2+ via a scorpionate-type nitrilotriacetic acid (NTA) ligand. The NTA group also allows the specific binding of proteins to the sidewalls of the tubes. The surface-bound protein retains its catalytic activity. This biofunctionalization of NT-WS2 opens new opportunities for integrating chalcogenide nanoparticles in (bio)composites.

    13. Design and Fabrication of Magnetically Functionalized Core/Shell Microspheres for Smart Drug Delivery (pages 292–297)

      Xiuqing Gong, Suili Peng, Weijia Wen, Ping Sheng and Weihua Li

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200801315

      Thumbnail image of graphical abstract

      Core/shell microspheres comprising magnetic shells encapsulating a water-soluble drug (see figure) are shown to undergo structural deformation under the application of an AC magnetic field. The compression–extension oscillations are controllable by varying the frequency, amplitude, and time profile of the alternating electric current applied to an electromagnet. Through such structural deformations, the drug release rate can be actively modulated.

    14. Illuminating Dark Plasmons of Silver Nanoantenna Rings to Enhance Exciton–Plasmon Interactions (pages 298–303)

      Hong-Mei Gong, Li Zhou, Xiong-Rui Su, Si Xiao, Shao-Ding Liu and Qu-Quan Wang

      Article first published online: 18 DEC 2008 | DOI: 10.1002/adfm.200801151

      Thumbnail image of graphical abstract

      Silver nanorings grown in a reductive reaction solution have singly twinned crystals, a circular cross section, and smooth surface. By illuminating multipolar dark plasmons in a slantwise manner, the silver nanoantenna rings exhibit unique focused scattering in the nanoring and strong exciton–plasmon interactions around the intersection points of the incident plane and nanoring (see figure). The enhanced local field is tunable by adjusting the incidence angle of illumination.

    15. Hole Injection in a Model Fluorene–Triarylamine Copolymer (pages 304–310)

      Hon Hang Fong, Alexis Papadimitratos, Jaehyung Hwang, Antoine Kahn and George G. Malliaras

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200800738

      Thumbnail image of graphical abstract

      Hole injection in a model fluorene–triarylaminecopolymer from common anodes is found to be remarkably inefficient. The results illustrate the opportunity to further improve the performance of polymer OLEDs as well as the challenge posed by high mobility conjugated polymers for the design of hole injection layers.

    16. Self-Organized Single-Walled Carbon Nanotube Conducting Thin Films with Honeycomb Structures on Flexible Plastic Films (pages 311–316)

      Nobuo Wakamatsu, Hisayoshi Takamori, Tsuyohiko Fujigaya and Naotoshi Nakashima

      Article first published online: 23 DEC 2008 | DOI: 10.1002/adfm.200801241

      Thumbnail image of graphical abstract

      Honeycomb structures of single-walled carbon nanotubes (SWNTs) are successfully formed on a poly(ethylene terephthalate) film by a simple solution-casting process at room temperature using a SWNT/lipid conjugate as the material. After the removal of the lipid by an “ion-exchange method”, the film exhibits a dramatic decrease in the surface resistivity from insulating (left film in image) to conducting (right film in image).

    17. Control of Charge Transport in Iridium(III) Complex-Cored Carbazole Dendrimers by Generation and Structural Modification (pages 317–323)

      Salvatore Gambino, Stuart G. Stevenson, Kevin A. Knights, Paul L. Burn and Ifor D. W. Samuel

      Article first published online: 16 DEC 2008 | DOI: 10.1002/adfm.200801144

      Thumbnail image of graphical abstract

      A study of charge transport in a family of highly phosphorescent iridium carbazole dendrimers is reported. For the “double dendron” material (see figure) high time-of-flight mobility is observed together with the lowest energetic disorder parameter (σ) ever reported for a solution-processed conjugated organic material.

    18. Highly Fluorescent Poly(dimethylsiloxane) for On-Chip Temperature Measurements (pages 324–329)

      Jianhua Zhou, Hui Yan, Yizhe Zheng and Hongkai Wu

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adfm.200801064

      Thumbnail image of graphical abstract

      Highly fluorescent poly(dimethylsiloxane) (PDMS) doped with ZnO quantum dots (QDs) is conveniently generated and used directly for whole-chip temperature measurement (see image). A model is also given to elucidate its temperature sensitivity and its extremely high stability by studying the bonding between the QDs and PDMS.

  6. Index

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

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