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Output of an Ultrasonic Wave-Driven Nanogenerator in a Confined Tube

Xudong Wang1,2 , Yifan Gao1 , Yaguang Wei1 , and Zhong Lin Wang1 ()
1School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA
2Department of Materials Science and Engineering, University of Wisconsin at Madison, Madison, Wisconsin 53706, USA

DOI 10.1007/s12274-009-9023-x

Nano Res (2009)2:177-182

Address correspondence to zlwang@gatech.edu

The output of an ultrasonic wave driven nanogenerator (NG) has been shown to depend on the excitation conditions and geometry. Incidence angle tests indicate that the effective area of an NG determines the amount of power that can be generated. The output power of an NG is also directly related to its distance from the ultrasonic source.

    

Separation of Metallic and Semiconducting Single-Walled Carbon Nanotubes Through Fluorous Chemistry

Sandeep Ghosh1,2 and C. N. R. Rao 1,2 ()
1 Chemistry and Physics of Materials Unit, DST unit on Nanoscience and CSIR Centre of Excellence in Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-560064, India
2 Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India

DOI 10.1007/s12274-009-9016-9

Nano Res (2009)2:183-191

Address correspondence to cnrrao@jncasr.ac.in

Reaction with a diazonium salt followed by fluorous extraction enables separation of semiconducting and metallic single walled carbon nanotubes.

    

Facile, Noncovalent Decoration of Graphene Oxide Sheets with Nanocrystals

Ganhua Lu1 , Shun Mao1 , Sungjin Park2 , Rodney S. Ruoff2, and Junhong Chen1()
1 Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N. Cramer St., Milwaukee, WI 53211, USA
2 Department of Mechanical Engineering and the Texas Materials Institute, University of Texas at Austin, 204 E. Dean Keeton, Austin, TX 78712, USA

DOI 10.1007/s12274-009-9017-8

Nano Res (2009)2:192-200

Address correspondence to jhchen@uwm.edu

Graphene oxide sheets have been successfully decorated with aerosol Ag nanocrystals at room temperature using electrostatic force directed assembly. Ripening of Ag nanocrystals was observed after annealing the Ag-graphene oxide hybrid structure in Ar. Schematics (top panel) are not to scale.

    

Direct Growth of Enclosed ZnO Nanotubes

Bin Liu and Hua Chun Zeng()
National University of Singapore, Singapore

DOI 10.1007 s12274-009-9018-7

Nano Res (2009)2:201-209

Address correspondence to chezhc@nus.edu.sg

Single-crystal enclosed ZnO nanotubes can be grown by a direct wet chemical approach. A concave growth front can either remain unaltered or undergo a concave-to-convex transformation, leading to the growth of solid nanorods and/or hollow nanotubes.

    

Myoglobin/Gold Nanoparticles/Carbon Spheres 3-D Architecture for the Fabrication of a Novel Biosensor

Xiao Chen, Jing Jing Zhang, Jie Xuan, and Jun Jie Zhu()
Key Laboratory of Analytical Chemistry for Life Science, Ministry of Education, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210093, China

DOI 10.1007/s12274-009-9019-6

Nano Res (2009)2:210-219

Address correspondence to jjzhu@nju.edu.cn

The numerous individual light nanodots are gold nanoparticles (AuNPs) on the grey carbon spheres (CNs), indicating that well-dispersed AuNPs decorate the CNs surface quite uniformly. The material may be employed as an effective substrate for immobilization of myoglobin for use in biosensors.

    

Fluorescent Superlattices of Gold Nanoparticles: A New Class of Functional Materials

Edakkattuparambil Sidharth Shibu 1, Madathumpady Abubaker Habeeb Muhammed1 , Keisaku Kimura2 , and Thalappil Pradeep1()
1 DST Unit on Nanoscience (DST UNS), Department of Chemistry and Sophisticated Analytical Instrument Facility, Indian
Institute of Technology, Madras, Chennai 600 036, India
2 Graduate School of Material Science, University of Hyogo, 3-2-1 Koto, Kamigori-cho, Ako-gun Hyogo 678-1297, Japan

DOI 10.1007/s12274-009-9020-0

Nano Res (2009)2:220-234

Address correspondence to pradeep@iitm.ac.in

Preparation of dansyl glutathione capped gold nanoparticle superlattices with two distinct morphologies and showing intense emission in the visible NIR region is reported. Stacking of nanoparticles in these crystals is studied by TEM and SAXS. Fluorescence images of the crystals.

    

Identification of Molecular Flipping of an Asymmetric Tris(phthalocyaninato) Lutetium Triple-Decker Complex by Scanning Tunneling Microscopy/Spectroscopy

Xianghua Kong1 , Shengbin Lei 2, Yanlian Yang2 , Ke Deng2 , Guicun Qi2, and Chen Wang2()
1 Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2 National Center for Nanoscience and Technology, Beijing 100190, China

DOI 10.1007/s12274-009-9021-z

Nano Res (2009)2:235-241

Address correspondence to wangch@nanoctr.cn

A phase transition from an ordered packing arrangement with fourfold symmetry at negative bias to a random arrangement at positive bias was observed for a self-assembly of Lu2Pc3 molecules. Molecular switching behaviour by a bias-polarity-induced fl ipping process was demonstrated and confi rmed by the shift of the peak in dI/dV versus V curves for individual Lu2Pc3 molecules when the voltage scanning direction was reversed.

    

Facile Fabrication of Hierarchically Porous Carbonaceous Monoliths with Ordered Mesostructure via an Organic Organic Self-Assembly

Chunfeng Xue, Bo Tu(), and Dongyuan Zhao()
Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular  Engineering of Polymers, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China

DOI 10.1007/s12274-009-9022-y

Nano Res (2009)2:242-253

Address correspondence to Dongyuan Zhao, dyzhao@fudan.edu.cn; Bo Tu, botu@fudan.edu.cn

A simple approach for hierarchically porous monolithic materials with different mesostructure is demonstrated by organic organic coassembly of the precursors on the 3-dimensional interconnected network of PU foam scaffold. The strategy is also a good candidate for mass production of mesostructured materials especially for the coassembly process in which the gas-liquid interface is required.

    

STM Manipulation of Molecular Moulds on Metal Surfaces

Miao Yu1 , Wei Xu1 , Youness Benjalal2,3 , Regis Barattin2 , Erik Lægsgaard1 , Ivan Stensgaard1 , Mohamed2,3 , and Flemming Hliwa2,3 , Xavier Bouju2 , Andr¨¦ Gourdo2 , Christian Joachim2 , Trolle R. Linderoth1 ()and Flemming Besenbacher1()
1 Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Ny
Munkegade, 8000 Aarhus C, Denmark
2 Nanoscience group, CEMES-CNRS, 29 rue Jeanne Marvig, 31055 Toulouse, France
3 Facult¨¦ des Sciences Ben MʼSik, Universit¨¦ Hassan II-Mohamm¨¦dia, BP 7955, Sidi Othman, Casablanca, Morocco

DOI 10.1007/s12274-009-9024-9

Nano Res (2009)2:254-259

Address correspondence to Flemming Besenbacher, fbe@inano.dk; Trolle R. Linderoth, trolle@inano.dk These authors contributed equally to this work.

By means of scanning tunneling microscopy (STM) imaging and manipulation we investigate the morphology and anchoring of a specially designed Lander molecule on Cu(110) and Au(111) substrates. We conclude that Au(111) may be the more suitable substrate for the self-assembly of this Lander molecule since the weaker molecule¨Csubstrate interaction will be beneficial for the formation of ordered molecular architectures mainly driven by intermolecular interactions.

    

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