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C N R Rao: 75th birthday issue
25 June 2009
Now published - an issue in celebration of C N R Rao's 75th birthday
Another record year for Journal of Materials Chemistry's Impact Factor!
24 June 2009
Newly released ISI citation data show another increase in the Impact Factor of Journal of Materials Chemistry to an all-time high value of 4.65.
Trees take on tissue engineering
16 June 2009
Italian scientists have turned wood into bone mimics that could be used to repair damaged limbs
Contents list for Journal of Materials Chemistry, issue 27, 2009
Front cover
J. Mater. Chem., 2009, 19, 4641
DOI: 10.1039/b911822p
Inside front cover
J. Mater. Chem., 2009, 19, 4642
DOI: 10.1039/b911823n
Contents and Chemical Science
J. Mater. Chem., 2009, 19, 4643
DOI: 10.1039/b911824c
Feature Articles
Multifunctional nanoparticles as biocompatible targeted probes for human cancer diagnosis and therapy
Ken-Tye Yong, Indrajit Roy, Mark T. Swihart and Paras N. Prasad,
J. Mater. Chem., 2009, 19, 4655
DOI: 10.1039/b817667c
The use of nanoparticles in biological applications has been advancing toward applications in human cancer diagnosis and therapy. Upon functionalizing the nanoparticles with biomolecules, they can be used to locate cancerous areas and for drug delivery.
Synthesis and applications of nanocrystalline nitride materials
Baishakhi Mazumder and Andrew L. Hector,
J. Mater. Chem., 2009, 19, 4673
DOI: 10.1039/b817407e
We present a review of the synthesis of nanocrystalline and nanoparticulate nitride materials, and of their existing and potential applications.
Communications
Direct fabrication of 3D silica-like microstructures from epoxy-functionalized polyhedral oligomeric silsesquioxane (POSS)
Jun Hyuk Moon, Jin Seok Seo, Yongan Xu and Shu Yang,
J. Mater. Chem., 2009, 19, 4687
DOI: 10.1039/b901226e
We have fabricated 2D and 3D structured organosilcates from epoxy functionalized polyhedral oligomeric silsesquioxanes (POSS) cage materials using holographic lithography, which can be conveniently converted to silica structures by thermal removal of the organic moieties.
Chemical morphology freezing: chemical protection of the physical morphology of high photoactivity anatase TiO2 nanotubes
Tao Wang, Sheng Wang, Wenxing Chen, Wei Wang, Zhanglian Xu, Yang Liu and Teruo Hori,
J. Mater. Chem., 2009, 19, 4692
DOI: 10.1039/b906896a
An unavoidable thermodynamic behavior of nanomaterials is prevented by using a simple chemical morphology freezing method, and novel high photoactivity TiO2 nanotubes are obtained with perfect open-ended tubular morphology (4–10 nm diameters) and fine anatase phase.
Papers
Synthesis and bio-functionalization of multifunctional magnetic Fe3O4@Y2O3:Eu nanocomposites
Zhi Ya Ma, Dosi Dosev, Mikaela Nichkova, Shirley J. Gee, Bruce D. Hammock and Ian M. Kennedy,
J. Mater. Chem., 2009, 19, 4695
DOI: 10.1039/b901427f
A simple synthesis method yields particles with the benefits of magnetization and lanthanide emission.
Self-assemblies of Pd nanoparticles on the surfaces of single crystal ZnO nanowires for chemical sensors with enhanced performances
Yuan Zhang, Qun Xiang, Jiaqiang Xu, Pengcheng Xu, Qingyi Pan and Feng Li,
J. Mater. Chem., 2009, 19, 4701
DOI: 10.1039/b822784e
ZnO nanowires have been modified with monodispersed Pd nanoparticles using a self-assembly method which produces chemical sensors with high sensitivity, selectivity and stability.
A promising electrochemical biosensing platform based on graphitized ordered mesoporous carbon
Xianbo Lu, Yi Xiao, Zhibin Lei, Jiping Chen, Haijun Zhang, Yuwen Ni and Qing Zhang,
J. Mater. Chem., 2009, 19, 4707
DOI: 10.1039/b903179k
Graphitized ordered mesoporous carbons with good pore size matching for enzymes offer significant advantages over carbon nanotubes in facilitating the electron transfer of entrapped enzymes and improving the performance of fabricated biosensors.
Photoinduced structural modifications in multicomponent architectures containing azobenzene moieties as photoswitchable cores
Joceline Zeitouny, Claudia Aurisicchio, Davide Bonifazi, Rita De Zorzi, Silvano Geremia, Massimo Bonini, Carlos-Andres Palma, Paolo Samorì, Andrea Listorti, Abdelhalim Belbakra and Nicola Armaroli,
J. Mater. Chem., 2009, 19, 4715
DOI: 10.1039/b905287a
Isomerization of four novel azobenzene chromophores/luminophores is accomplished photochemically in solution and on HOPG surfaces, as monitored by Uv-Vis spectroscopy and STM.
Structural characterization and physical properties of new tetrabenzopentaphene mesogens
Carmen Romero, Diego Peña, Dolores Pérez, Enrique Guitián, Roberto Termine, Attilio Golemme, Ana Omenat, Joaquín Barberá and José Luis Serrano,
J. Mater. Chem., 2009, 19, 4725
DOI: 10.1039/b901260e
The synthesis and the structural and physical characterization of a family of new tetrabenzopentaphene mesogens are presented. These compounds are able to self-organize into ordered columnar mesophases, and present gel formation, luminescent and photoconductive properties.
Stimuli-responsive copolymers of n-isopropyl acrylamide with enhanced longevity in water for micro- and nanofluidics, drug delivery and non-woven applications
Yiyun Zhang and Alexander L. Yarin,
J. Mater. Chem., 2009, 19, 4732
DOI: 10.1039/b902000d
New copolymers of NIPAM with enhanced longevity in water were polymerized. The copolymers are thermo- and pH-responsive, which allows modulation of their wettability and shrinkage/swelling ratio. A fluorescent dye was encapsulated and released with modulation of the release rate using thermal or pH stimuli.
Polyhedral oligomeric silsesquioxanes tethered with perfluoroalkylthioether corner groups: Facile synthesis and enhancement of hydrophobicity of their polymer blends
Jianwei Xu, Xu Li, Ching Mui Cho, Cher Ling Toh, Lu Shen, Khine Yi Mya, Xuehong Lu and Chaobin He,
J. Mater. Chem., 2009, 19, 4740
DOI: 10.1039/b900299e
A new type of POSS with eight perfluoroalkylthioether corner groups is prepared through a thiol-addition reaction. These POSS molecules remarkably enhance the hydrophobicity of polymer blend surfaces.
Soft route for monodisperse gold nanoparticles confined within SH-functionalized walls of mesoporous silica
Eric Besson, Ahmad Mehdi, Catherine Reyé and Robert J. P. Corriu,
J. Mater. Chem., 2009, 19, 4746
DOI: 10.1039/b902568e
We report a soft route leading to small gold nanoparticles confined within the framework of 2D-hexagonal mesoporous SH-functionalised silicas.
Supramolecular assembly of H-bonded copolymers/complexes/nanocomposites and fluorescence quenching effects of surface-modified gold nanoparticles on fluorescent copolymers containing pyridyl H-acceptors and acid H-donors
Tzung-Chi Liang and Hong-Cheu Lin,
J. Mater. Chem., 2009, 19, 4753
DOI: 10.1039/b823450g
Fluorescent self-H-bonded copolymer P1 and non-self-H-bonded copolymer P4 demonstrate fluorescence quenching effects by surface-modified gold nanoparticles (AuSCOOH and AuSC10) bearing acid and acid-free surfactants.
Magnetic mesoporous silica microspheres with thermo-sensitive polymer shell for controlled drug release
Congying Liu, Jia Guo, Wuli Yang, Jianhua Hu, Changchun Wang and Shoukuan Fu,
J. Mater. Chem., 2009, 19, 4764
DOI: 10.1039/b902985k
A core-shell composite microsphere, combining magnetism, mesoporosity and thermo-sensitivity into one moiety, is designed for controlled drug release. The rapid release behaviors above the volume phase-transition temperature indicate a potential application in therapy of tumor.
Lowering interfacial chemical reactivity of oxide materials for lithium batteries. A molecular grafting approach
François Tanguy, Joël Gaubicher, Anne-Claire Gaillot, Dominique Guyomard and Jean Pinson,
J. Mater. Chem., 2009, 19, 4771
DOI: 10.1039/b901387c
Molecular grafting via diazonium chemistry allowed tailoring of both chemical and electrochemical reactivities of oxide electrode materials. Oxide surface induced decomposition of the electrolyte was limited, leading to improved cycle life.
Electrochromism based on structural colour changes in a polyelectrolyte gel
Kazuhide Ueno, Junji Sakamoto, Yukikazu Takeoka and Masayoshi Watanabe,
J. Mater. Chem., 2009, 19, 4778
DOI: 10.1039/b900261h
Electrochromism on the basis of structural colours was demonstrated by employing a simple system composed of a two-electrode cell, a salt-free organic solvent, and an inverse-opal type polyelectrolyte gel.
Core-functionalized dendritic oligothiophenes—novel donor–acceptor systems
Markus K. R. Fischer, Chang-Qi Ma, René A. J. Janssen, Tony Debaerdemaeker and Peter Bäuerle,
J. Mater. Chem., 2009, 19, 4784
DOI: 10.1039/b904243a
Core-functionalized dendritic oligothiophenes bearing pyridine or methylpyridinium acceptors were synthesized up to the third generation. These materials are promising candidates for applications in organic solar cells due to their broad absorption.
Liquid phase deposition of titania onto nanostructured poly-p-xylylene thin films
Niranjan Malvadkar, Walter J. Dressick and Melik C. Demirel,
J. Mater. Chem., 2009, 19, 4796
DOI: 10.1039/b902882j
Adhesive titania films are selectively grown on nanostructured parylene thin films bearing a physisorbed ligand via an aqueous liquid phase deposition technique.
Anion-driven mesogenicity: ionic liquid crystals based on the [closo-1-CB9H10]- cluster
Bryan Ringstrand, Hirosato Monobe and Piotr Kaszynski,
J. Mater. Chem., 2009, 19, 4805
DOI: 10.1039/b905457j
1,10-Disubstitution of the [closo-1-CB9H10]- cluster gives rise to a new structural class of ionic liquid crystals in which the anion drives the mesogenicity.
Comparison of two- and three-layer restacked Dion–Jacobson phase niobate nanosheets as catalysts for photochemical hydrogen evolution
Kazuhiko Maeda and Thomas E. Mallouk,
J. Mater. Chem., 2009, 19, 4813
DOI: 10.1039/b903692j
Photocatalytic activity of restacked Dion–Jacobson phase niobate nanosheets for hydrogen production was found to be strongly dependent on the number of perovskite blocks in the nanosheets.
Superhydrophobic waxy-dendron-grafted polymer films via nanostructure manipulation
Wei-Ho Ting, Chao-Chin Chen, Shenghong A. Dai, Shing-Yi Suen, I-Kuan Yang, Ying-Ling Liu, Franklin M. C. Chen and Ru-Jong Jeng,
J. Mater. Chem., 2009, 19, 4819
DOI: 10.1039/b900468h
To exhibit superhydrophobicity and strong adhesion force with water, hydrogen bonding-rich waxy dendrons were synthesized and subsequently grafted on the amine-containing polystyrene. By different coating processes, thin film, honeycomb-like film, and 3D rod-co-valley-like film were obtained with contact angles of 95°, 130°, and 165°, respectively.
Substituted carbazole dyes for efficient molecular photovoltaics: long electron lifetime and high open circuit voltage performance
Nagatoshi Koumura, Zhong-Sheng Wang, Masanori Miyashita, Yu Uemura, Hiroki Sekiguchi, Yan Cui, Atsunori Mori, Shogo Mori and Kohjiro Hara,
J. Mater. Chem., 2009, 19, 4829
DOI: 10.1039/b905831a
We designed and synthesized new substituted carbazole dyes, MK-14 and -16, for dye-sensitized solar cells (DSSCs), and demonstrated that the electron lifetime and open circuit voltage of the DSSCs employing these dyes were increased.
Dopant-concentration dependence of grain-boundary conductivity in ceria: A space-charge analysis
Hugo J. Avila-Paredes, Kwanghoon Choi, Chien-Ting Chen and Sangtae Kim,
J. Mater. Chem., 2009, 19, 4837
DOI: 10.1039/b904583j
We quantitatively verified that the increase in the grain-boundary conductivity of Gd-doped ceria on increasing dopant concentration results from the concurrent reduction in the potential barrier at the grain boundaries.
Inorganic molecular imprinted titanium dioxide photocatalyst: synthesis, characterization and its application for efficient and selective degradation of phthalate esters
Xiantao Shen, Lihua Zhu, Chuixiu Huang, Heqing Tang, Zhiwu Yu and Feng Deng,
J. Mater. Chem., 2009, 19, 4843
DOI: 10.1039/b900196d
A stable inorganic molecular imprinted photocatalyst was successfully synthesized by surface imprinting TiO2 nanoparticles with a layer of inorganic molecular imprinted silica/alumina.
Synthesis, characterization and photoconductivity of highly crystalline InP nanowires prepared from solid hydrogen phosphide
Teck H. Lim, Shrividya Ravi, Christopher W. Bumby, Pablo G. Etchegoin and Richard D. Tilley,
J. Mater. Chem., 2009, 19, 4852
DOI: 10.1039/b902474c
Highly crystalline InP nanowires were synthesized from elemental In and hydrogen phosphide (PH)x in solution from In and Bi seeds via SLS growth. Elemental In and (PH)x were produced in situ from the hydride reduction of InCl3 and PBr5. The photoluminescence and photoconductivity properties of the nanowires deposited as solid films were investigated.
Back matter
J. Mater. Chem., 2009, 19, 4857
DOI: 10.1039/b911825j
Back cover
J. Mater. Chem., 2009, 19, 4859
DOI: 10.1039/b911827f
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