Volume 4

Issue 04,2011

(10 articles)

Qingli Hao (), Hualan Wang, Xujie Yang, Lude Lu, and Xin Wang ()

Morphology-controlled sulfonated graphene (SGE)/polyaniline nanocomposites have been prepared by liquid/liquid interface polymerization using SGE nanosheets as both a macromolecular acid dopant and substrate in the polymerization process, and their performance as supercapacitor electrode materials has been investigated.
2011, 4(4): 323–333

Maoshuai He1 (), Alexander I. Chernov2, Elena D. Obraztsova2, Jani Sainio3, Emma Rikkinen1, Hua Jiang4, Zhen Zhu4, Antti Kaskela4, Albert G. Nasibulin4, Esko I. Kauppinen4, 5 (), Marita Niemel1, and Outi Krause1

Atomic layer deposition has been used to prepare a silicasupported monometallic nickel catalyst, which facilitated the growth of high quality single-walled carbon nanotubes (SWNTs) with a narrow diameter distribution at 500 °C by thermal chemical vapor deposition.
2011, 4(4): 334–342

Andrea Fasoli1, Alan Colli2, Faustino Martelli3, Simone Pisana1, Ping Heng Tan4, and Andrea C. Ferrari1 ()

CdSe nanowires have been synthesized via vapor-phase growth with and without the use of a metal catalyst. Nanowires produced without a catalyst can be optimized to yield higher quantum efficiency, and narrower and spatially uniform emission, when compared to the catalyst-assisted ones.
2011, 4(4): 343–359

Ming-Chung Wu1, 4, András Sápi2, Anna Avila3, Mária Szabó2, Jussi Hiltunen3, Mika Huuhtanen3, Géza Tóth1, kos Kukovecz2, Zoltán Kónya2, Riitta Keiski3, Wei-Fang Su4, Heli Jantunen1, and Krisztián Kordás1 (

By employing metal-decorated TiO2 nanowires, efficient photocatalytic decomposition of organic dyes in water on the surface of flexible freestanding cellulose/catalyst composite films, as well as hydrogen generation from ethanol, is enabled.
2011, 4(4): 360–369

L-r Meng1, Weimeng Chen2, Yiwei Tan1, Lin Zou1, Chinping Chen2, Heping Zhou1, Qing Peng1, and Yadong Li1 )

Multimicron-sized Fe3O4 colloidal "single crystals" with an octahedral shape have been readily produced by a controllable solvothermal method. They may serve as a novel magnetic mesoporous material, as well as a high-capacity electrode material for lithium-ion batteries.
2011, 4(4): 370–375

Sergey A. Krasnikov1, 2 (), Catherine M. Doyle1, Natalia N. Sergeeva3, Alexei B. Preobrajenski4, Nikolay A. Vinogradov4, Yulia N. Sergeeva3, Alexei A. Zakharov4, Mathias O. Senge3, and Attilio A. Cafolla1

Thermally controlled dissociation of bromine from {5,10,15,20-tetrakis(4-bromophenyl)porphyrinato}nickel(II) has been employed to form robust, extended covalently bonded porphyrin networks on the Au(111) surface, which are stable up to 800 K and can be recovered after exposure to ambient conditions. Covalent bonds are formed between the phenyl substituents of the porphyrins when the molecular layer is annealed at 525 K.
2011, 4(4): 376–384

Sungjae Cho and Michael Fuhrer ()

We probe the density of particle-in-a-box states as a function of particle number for massless two-dimensional (2-D) fermions (single-layer graphene) and massive 2-D fermions (bi-layer graphene) in a phase-coherent Fabry–Perot cavity for electrons. The density of states varies as the square-root of particle number for massless 2-D fermions, and is constant for massive 2-D fermions.
2011, 4(4): 385–392

Jeffrey A. Fagan1 (), Nancy J. Lin1, Rolf Zeisler2, and Angela R. Hight Walker3

Gamma ray irradiation of nanotube dispersions is demonstrated to sterilize the liquids while allowing retention of the desirable optical properties of the nanotubes.
2011, 4(4): 393–404

Pier Paolo Pompa1 (✉), Giuseppe Vecchio1, Antonio Galeone1, Virgilio Brunetti1, Stefania Sabella1, Gabriele Maiorano1, Andrea Falqui2, Giovanni Bertoni2, and Roberto Cingolani1,2

The model system Drosophila melanogaster has been exploited to assess the toxic effects of citrate-capped gold nanoparticles (AuNPs) upon ingestion. We observed a significant in vivo toxicity of AuNPs, which elicited clear adverse effects in treated organisms, such as a strong reduction of their life span and fertility, presence of DNA fragmentation, as well as a significant overexpression of the stress proteins.
2011, 4(4): 405–413
Published: 17 December 2010

Christian Reitz, Christian Suchomski, Christoph Weidmann, and Torsten Brezesinski ()

BiFeO3 can be templated using a large poly(ethylene-co-butylene)-block-poly(ethylene oxide) diblock copolymer to produce high quality thin films with both a mesoporous morphology and nanocrystalline framework. These novel materials exhibit enhanced photocatalytic activity compared to nontemplated films, which demonstrates that the catalytic properties are largely determined by surfaces and interfaces and not by bulk behavior.
2011, 4(4): 414–424