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Contents list for Journal of Materials Chemistry, issue 8, 2010
Front cover
J. Mater. Chem., 2010, 20, 1389
DOI: 10.1039/c001763a
Inside front cover
J. Mater. Chem., 2010, 20, 1390
DOI: 10.1039/c001764g
Contents
J. Mater. Chem., 2010, 20, 1391
DOI: 10.1039/c001770c
Feature Articles
Morphology of mixed-monolayers protecting metal nanoparticles
Cristina Gentilini and Lucia Pasquato,
J. Mater. Chem., 2010, 20, 1403
DOI: 10.1039/b912759c
Break the symmetry! Introducing anisotropy in mixed self-assembled monolayers protecting metal nanoparticles is a crucial goal towards the design of nanoscale 
building blocks
. The most recent strategies are discussed in this article.
Spontaneously formed porous and composite materials
Serena A. Corr, Daniel P. Shoemaker, Eric S. Toberer and Ram Seshadri,
J. Mater. Chem., 2010, 20, 1413
DOI: 10.1039/b915613e
Scanning electron micrograph of a reduced Ni/MnO composite. The large-grained microstructure from the spinel precursor is maintained, but nanosized pores are evident and Ni nanoparticles are visible as the light dots.
20th Anniversary Article
All-conjugated polyelectrolyte block copolymers
Andrea Gutacker, Sylwia Adamczyk, Anke Helfer, Logan E. Garner, Rachel C. Evans, Sofia M. Fonseca, Matti Knaapila, Guillermo C. Bazan, Hugh D. Burrows and Ullrich Scherf,
J. Mater. Chem., 2010, 20, 1423
DOI: 10.1039/b918583f
First examples of all-conjugated polyelectrolyte diblock copolymers are presented including their characterisation by optical spectroscopy, confocal fluorescence microscopy, AFM, and SAXS. The formation of micron-sized vesicles (polymersomes) in solution was observed.
Communications
Micro-morphological reconstruction of nanoporous gold electrode
Jing-Fang Huang and Min-Chih Fan,
J. Mater. Chem., 2010, 20, 1431
DOI: 10.1039/b924055a
A new, simple, and effective procedure for reconstructing the micro-morphology of nanoporous gold in the basic 25–75 mol% zinc chloride-1-ethyl-3-methylimidazolium chloride ionic liquid without using corrosive acids, bases or toxic electrolytes is described.
Ambient pressure, low-temperature synthesis and characterization of colloidal InN nanocrystals
Jennifer C. Hsieh, Dong Soo Yun, Evelyn Hu and Angela M. Belcher,
J. Mater. Chem., 2010, 20, 1435
DOI: 10.1039/b922196d
Highly soluble, colloidal wurtzite InN nanocrystals with a band gap of 
0.8 eV were obtained through an ambient pressure, low-temperature method followed by post-synthesis treatment with nitric acid.
Selective encapsulation of dye molecules in dendrimer/polymer multilayer microcapsules by DNA hybridization
Chuan-Liang Feng, Anne-Marie Caminade, Jean-Pierre Majoral and Di Zhang,
J. Mater. Chem., 2010, 20, 1438
DOI: 10.1039/b927566e
Using single strand DNA (ssDNA) target as a vehicle and Cy5 dye molecule as cargo, the selective encapsulation of Cy5 was obtained by DNA hybridization in dendrimer/polymer multilayer microcapsules.
Papers
A new approach for the selective and sensitive colorimetric detection of ionic surfactants in water
Carmen Coll, José V. Ros-Lis, Ramón Martínez-Máñez, M. Dolores Marcos, Félix Sancenón and Juan Soto,
J. Mater. Chem., 2010, 20, 1442
DOI: 10.1039/b910659f
A two-step protocol for the colorimetric detection of cationic and anionic surfactants in water was developed using simple silica supports functionalised with suitable binding groups.
Hydrogen storage materials protected by a polymer shell
Tatiana Borodina, Dmitry Grigoriev, Helmuth Möhwald and Dmitry Shchukin,
J. Mater. Chem., 2010, 20, 1452
DOI: 10.1039/b920470a
A simple approach for protection of hydrogen storage materials is based on interfacial polymer precipitation induced by solvent evaporation.
Implementation of redox gradients in hydrogen bonded complexes containing N,N-dimethylaniline, flavin and fullerene derivatives
Motonobu Murakami, Kei Ohkubo, Taku Hasobe, Vito Sgobba, Dirk M. Guldi, Florian Wessendorf, Andreas Hirsch and Shunichi Fukuzumi,
J. Mater. Chem., 2010, 20, 1457
DOI: 10.1039/b918462g
Supramolecular complexes between 10-[4
-(N,N-dimethylamino)phenyl]isoalloxazine and fullerene derivatives have been investigated for the unidirectional electron transfer cascade reaction by fine-tuned and fine-balanced redox gradients.
Layer-by-layer self-assembly, controllable disintegration of polycarboxybetaine multilayers and preparation of free-standing films at physiological conditions
Zhangliang Gui, Jinwen Qian, Quanfu An, Qiang Zhao, Huangtao Jin and Binyang Du,
J. Mater. Chem., 2010, 20, 1467
DOI: 10.1039/b918170a
Controllable disintegration of polycarboxybetaine multilayers and preparation of free-standing films in normal saline solution
Fluorescent nanoparticles for ratiometric pH-monitoring in the neutral range
Anja Schulz, Jana Wotschadlo, Thomas Heinze and Gerhard J. Mohr,
J. Mater. Chem., 2010, 20, 1475
DOI: 10.1039/b918427a
Due to a pKa of 6.7, good photostability, emission in the visible spectral range and large Stokes' shift, naphthalimide-based pH-indicator dyes are well suited for bio-analytical applications. We present the immobilisation of the pH-indicator dye together with a reference fluorophore in poly(acrylamide) nanoparticles as well as in novel core–shell nanoparticles, which exhibit a positive surface potential.
Unsoluble ordered polymeric pattern by breath figure approach
Alberto Bolognesi, Francesco Galeotti, Juliette Moreau, Umberto Giovanella, William Porzio, Guido Scavia and Fabio Bertini,
J. Mater. Chem., 2010, 20, 1483
DOI: 10.1039/b917267j
An alternated polyfluorene copolymer is used to produce hexagonally ordered porous films by means of the breath figure technique. By thermal treatment, the material crosslinks so that bicomponent arrays of two different fluorescent polymers are achievable.
Tailoring the nanoporosity of sol–gel derived bioactive glass using trimethylethoxysilane
Sen Lin, Claudia Ionescu, Esther M. Valliant, John V. Hanna, Mark E. Smith and Julian R. Jones,
J. Mater. Chem., 2010, 20, 1489
DOI: 10.1039/b918502j
In this study, the nanopore size of sol–gel derived bioactive glasses (70 mol% SiO2 and 30 mol% CaO) was successfully tuned from 12 to 30 nm by adding specific amounts of trimethylethoxysilane (TMES) during the sol–gel process.
Synthesis of thieno[3,2-b]thiophene derived conjugated oligomers for field-effect transistors applications
Weihua Tang, Samarendra P. Singh, Kok Haw Ong and Zhi-Kuan Chen,
J. Mater. Chem., 2010, 20, 1497
DOI: 10.1039/b920112b
Soluble thieno[3,2-b]thiophene oligomers with high oxidation stability and terrace island morphology emerged as promising field-effect transistors.
Anisotropic Co3O4 porous nanocapsules toward high-capacity Li-ion batteries
Jun Liu, Hui Xia, Li Lu and Dongfeng Xue,
J. Mater. Chem., 2010, 20, 1506
DOI: 10.1039/b923834d
Anisotropic Co3O4 porous nanocapsules can be used as high-performance anodes in Li-ion batteries, which exhibit a reversible capacity of 1000 mA h g-1 and good cycle performance.
Synthesis of magnetic/silica nanoparticles with a core of magnetic clusters and their application for the immobilization of His-tagged enzymes
EunJi Woo, Kanagasabai Muruganandam Ponvel, Ik-Sung Ahn and Chang-Ha Lee,
J. Mater. Chem., 2010, 20, 1511
DOI: 10.1039/b918682d
Magnetic/silica nanoparticles with high magnetization were prepared. Particles modified by organosilane ligands with copper complexes showed high activity and reuse efficiency of the lipases.
Conducting glasses as new potential thermoelectric materials: the Cu–Ge–Te case
António Pereira Gonçalves, Elsa Branco Lopes, Olivier Rouleau and Claude Godart,
J. Mater. Chem., 2010, 20, 1516
DOI: 10.1039/b908579c
In Cux+yGe20-xTe80-y chalcogenide glasses, the enhancement of Cu content, which most likely replaces Ge atoms in the GeTe4 structural unit, dramatically increases the power factor and, together with their extremely low thermal conductivity values, points to relatively high ZT values, indicating them as good candidates for high performance thermoelectric materials.
Peptide template effects for the synthesis and catalytic application of Pd nanoparticle networks
Anshuman Jakhmola, Rohit Bhandari, Dennis B. Pacardo and Marc R. Knecht,
J. Mater. Chem., 2010, 20, 1522
DOI: 10.1039/b922018f
Here we present the production of Pd nanoparticle networks (NPNs) using a peptide template. The amines within the framework complex Pd2+ ions that upon reduction grow to form NPNs with diameters of 4.1 nm. The materials are able to catalyze C-bond formation, suggesting that they can be used as model catalysts to understand the biotic/abiotic interface for bio-inspired nanomaterials activity.
One-step electrochemical deposition of Prussian Blue–multiwalled carbon nanotube nanocomposite thin-film: preparation, characterization and evaluation for H2O2 sensing
Dan Du, Minghui Wang, Yuehua Qin and Yuehe Lin,
J. Mater. Chem., 2010, 20, 1532
DOI: 10.1039/b919500a
The Prussian Blue–multiwalled carbon nanotube (PB–MWCNTs) nanocomposite film was fabricated with one-step electrochemical co-deposition method. The nanocomposite showed larger response to reduction of H2O2 than that on PB film.
In situ high temperature TEM analysis of sintering in nanostructured tungsten and tungsten–molybdenum alloy photonic crystals
Nicholas R. Denny, Fan Li, David J. Norris and Andreas Stein,
J. Mater. Chem., 2010, 20, 1538
DOI: 10.1039/b918423f
Even when they are composed of highly refractory tungsten, nanostructured metallic photonic crystals are susceptible to thermally induced structural changes, but such distortions are mitigated by alloying and atmospheric control.
Layer-by-layer polyelectrolyte films containing insulin for pH-triggered release
Kentaro Yoshida, Katsuhiko Sato and Jun-ichi Anzai,
J. Mater. Chem., 2010, 20, 1546
DOI: 10.1039/b918226h
A layer-by-layer deposition of insulin and polyanions at acidic pH afforded multilayer thin films that can release insulin at neutral pH, suggesting a future application of the LbL films for insulin delivery.
Direct synthesis of ordered N-methylimidazolium functionalized mesoporous silica as highly efficient anion exchanger of Cr(VI)
Lili Zhu, Chao Zhang, Yinghui Liu, Dongyang Wang and Ji Chen,
J. Mater. Chem., 2010, 20, 1553
DOI: 10.1039/b912345h
Ordered N-methylimidizolium functionalized mesoporous silica (SBA-15) anion exchangers were directly synthesized and used as efficient adsorbents for Cr(VI) over a wide pH range.
Highly efficient non-doped deep-blue organic light-emitting diodes based on anthracene derivatives
Cai-Jun Zheng, Wei-Ming Zhao, Zhi-Qiang Wang, Da Huang, Jun Ye, Xue-Mei Ou, Xiao-Hong Zhang, Chun-Sing Lee and Shuit-Tong Lee,
J. Mater. Chem., 2010, 20, 1560
DOI: 10.1039/b918739a
Three deep-blue-emitting anthracene derivatives have been designed, synthesized, and characterized. OLEDs based on these anthracene derivatives are among the best ever reported for saturated deep-blue OLEDs with a CIE coordinate of y < 0.10.
Preparation of fire-resistant poly(styrene-co-acrylonitrile) foams using supercritical CO2 technology
Laetitia Urbanczyk, Serge Bourbigot, Cédric Calberg, Christophe Detrembleur, Christine Jérôme, Frédéric Boschini and Michaël Alexandre,
J. Mater. Chem., 2010, 20, 1567
DOI: 10.1039/b917539c
Poly(styrene-co-acrylonitrile) foams, prepared by a supercritical carbon dioxide technology, are characterized by an excellent fire resistance (as determined by cone calorimetry) obtained by the synergistic addition of melamine polyphosphate and exfoliated nanoclay.
Synthesis and characterization of indeno[1,2-b]fluorene-based low bandgap copolymers for photovoltaic cells
Jinseck Kim, Sun Hee Kim, In Hwan Jung, Eunjae Jeong, Yangjun Xia, Shinuk Cho, In-Wook Hwang, Kwanghee Lee, Hongsuk Suh, Hong-Ku Shim and Han Young Woo,
J. Mater. Chem., 2010, 20, 1577
DOI: 10.1039/b919033c
The indenofluorene-based copolymers were synthesized and their photovoltaic properties were investigated.
Size-dependent polarized photoluminescence from Y3Al5O12: Eu3+ single crystalline nanofiber prepared by electrospinning
Guoping Dong, Xiudi Xiao, Yingzhi Chi, Bin Qian, Xiaofeng Liu, Zhijun Ma, E. Wu, Heping Zeng, Danping Chen and Jianrong Qiu,
J. Mater. Chem., 2010, 20, 1587
DOI: 10.1039/b921838f
Large scale, pure, super-long, single crystalline Y3Al5O12 (YAG) nanofibers are synthesized by convenient one-step calcination of as-prepared electrospun nanofibers. Notable polarized photoluminescence is observed from an individual YAG: Eu3+ nanofiber, which shows a strong diametrical dependence.
Transparent and flexible thin films of ZnO-polystyrene nanocomposite for UV-shielding applications
Yao Tu, Li Zhou, Yi Zheng Jin, Chao Gao, Zhi Zhen Ye, Ye Feng Yang and Qing Ling Wang,
J. Mater. Chem., 2010, 20, 1594
DOI: 10.1039/b914156a
Transparent and flexible thin films of ZnO-polystyrene nanocomposites, absorbing over 99% of UV lights (200–360 nm), are prepared by a simple approach, yielding materials which are promising for UV-shielding applications.
High lithium storage in micrometre sized mesoporous spherical self-assembly of anatase titania nanospheres and carbon
Shyamal K. Das, Srikarrao Darmakolla and Aninda J. Bhattacharyya,
J. Mater. Chem., 2010, 20, 1600
DOI: 10.1039/b919139a
Composite of anatase titania (TiO2) nanospheres and carbon grown and self-assembled into micron-sized mesoporous spheres via a solvothermal synthesis route resulted in high lithium storage (1 Li).
Back cover
J. Mater. Chem., 2010, 20, 1607
DOI: 10.1039/c001771j
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