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Bottom-up synthesis of ultrathin straight platinum nanowires: Electric field impact

Alexander Nerowski1, Joerg Opitz1,2, Larysa Baraban1 (), and Gianaurelio Cuniberti1,3


1 Institute for Materials Science and Max Bergmann Center of Biomaterials, Dresden University of Technology, Dresden 01062, Germany
2 Fraunhofer Institute for Non-Destructive Testing, Dresden 01109, Germany
3 Division of IT Convergence Engineering, POSTECH, Pohang 790-784, Republic of Korea

DOI 10.1007/s12274-013-0303-0

Nano Research 2013, 6(5): 303每311

Address correspondence to larysa.baraban@nano.tu-dresden.de

We present ultrathin high-aspect ratio platinum nanowires, which have been electrochemically fabricated from dilute H2PtCl6 solution. The electric field in the vicinity of the growing nanowires was found to be responsible for their straightness.

    

A green synthesis of carbon nanoparticles from honey and their use in real-time photoacoustic imaging

Lina Wu1,2,∫, Xin Cai3,∫, Kate Nelson4, Wenxin Xing3, Jun Xia3, Ruiying Zhang3, Allen J. Stacy1, Micah Luderer1, Gregory M. Lanza1, Lihong V. Wang3 (), Baozhong Shen2 (), and Dipanjan Pan1 ()


1 C-TRAIN and Division of Cardiology, Washington University School of Medicine, 4320 Forest Park Avenue, Saint Louis, MO 63108, USA
2 Key Laboratory of Molecular Imaging in College of Heilongjiang Province, Department of Radiology, the 4th Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
3 Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University in St. Louis, Campus Box 1097, One Brookings Drive, St. Louis, MO 63130, USA
4 Nano Research Facility (NNIN-NSF) , Washington University in St. Louis, St. Louis, MO 63130, USA
These authors contributed equally to this work

DOI 10.1007/s12274-013-0308-8

Nano Research 2013, 6(5): 312每325

Address correspondence to Dipanjan Pan, dipanjan@wustl.edu; Baozhong Shen, shenbzh@vip.sina.com; Lihong V. Wang, lhwang@seas.wustl.edu

A commercially amenable synthetic methodology is revealed for developing luminescent carbon nanoparticles from food grade honey with rapid clearance properties for real-time high-resolution photoacoustic imaging.

    

Highly defective graphene: A key prototype of two- dimensional Anderson insulators

Aur谷lien Lherbier1(), Stephan Roche2,3, Oscar A. Restrepo4, Yann-Michel Niquet5, Arnaud Delcorte4, and Jean-Christophe Charlier1


1 Universit谷 catholique de Louvain (UCL), Institute of Condensed Matter and Nanoscience (IMCN), NAPS-ETSF, Chemin des 谷toiles 8, 1348 Louvain-la-Neuve, Belgium
2 CIN2 (ICN-CSIC) and Universitat Aut車noma de Barcelona, Catalan Institute of Nanotechnology, Campus UAB, 08193 Bellaterra (Barcelona), Spain
3 ICREA, Instituci車 Catalana de Recerca i Estudis Avançats, 08070 Barcelona, Spain
4 Universit谷 catholique de Louvain (UCL), Institute of Condensed Matter and Nanoscience (IMCN), BSMA, Place Croix du Sud 1 (Boltzmann), 1348 Louvain-la-Neuve, Belgium
5 L_Sim, SP2M, UMR-E CEA/UJF-Grenoble 1, INAC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

DOI 10.1007/s12274-013-0309-7

Nano Research 2013, 6(5): 326每334

Address correspondence to aurelien.lherbier@uclouvain.be

We provide theoretical predictions of the electronic structure and transport properties in highly defective graphene (HDG). Simulations reveal mean free paths as low as 1 nm and strong Anderson localization phenomena, suggesting HDG as a remarkable prototype of a two-dimensional Anderson insulator.

    

Growth and low-energy electron microscopy characterization of monolayer hexagonal boron nitride on epitaxial cobalt

Carlo M. Orofeo, Satoru Suzuki, Hiroyuki Kageshima, and Hiroki Hibino ()


NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 Japan

DOI 10.1007/s12274-013-0310-1

Nano Research 2013, 6(5): 335每347

Address correspondence to hibino.hiroki@lab.ntt.co.jp

Low-energy electron microscopy (LEEM) was used to characterize the growth of hexagonal boron nitride (h-BN) on heteroepitaxial cobalt (shown as two opposite triangles). LEEM proves to be a powerful tool in identifying h-BN in the presence of the substrate as well as the determination of the number of h-BN layers.

    

Heteroepitaxial growth of ZnO nanosheet bands on ZnCo2O4 submicron rods toward high-performance Li ion battery electrodes

Chan Woo Lee1,2, Seung-Deok Seo3, Dong Wook Kim4, Sangbaek Park1, Kyoungsuk Jin1,2, Dong-Wan Kim3 (), and Kug Sun Hong1,2 ()

 

1 Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
2 WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
3 Department of Material Science and Engineering, Ajou University, Suwon 443-749, Korea
4 Department of Chemistry, Northwestern University, 245 Sheridan Road, Evanston, IL 60208, USA

DOI 10.1007/s12274-013-0311-0

Nano Research 2013, 6(5): 348每355

Address correspondence to Dong-Wan Kim, dwkim@ajou.ac.kr; Kug Sun Hong, kshongss@plaza.snu.ac.kr

Self-supported ZnCo2O4 and ZnO/ZnCo2O4 submicron rod arrays have been grown on Ni foil current collectors via an ammoniaevaporation-induced method by controlling the ratio of Zn to Co.The nanostructures are composed of one-dimensional ZnCo2O4 rods and two-dimensional ZnO nanosheet bands perpendicular to the each rod. The hierarchical nano-architecturing strategy demonstrates highly enhanced Li storage capability for Li ion battery electrodes.

    

Redox-sensitive colorimetric polyaniline nanoprobes synthesized by a solvent-shift process

Jihye Choi1,∫, Yoochan Hong2,∫, Eugene Lee3, Myeong-Hoon Kim1, Dae Sung Yoon2, Jinsuck Suh3,4,5, Yongmin Huh3,4,5, Seungjoo Haam1,4 (), and Jaemoon Yang3,4,6 ()


1 Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Republic of Korea
2 Department of Biomedical Engineering, Yonsei University, Wonju 220-710, Republic of Korea
3 Department of Radiology, College of Medicine, Yonsei University, Seoul 120-752, Republic of Korea
4 YUHS-KRIBB Medical Convergence Research Institute, Seoul 120-752, Republic of Korea
5 Severance Biomedical Science Institute (SBSI), Seoul 120-752, Republic of Korea
6 Severance Integrative Research Institute for Cerebral and Cardiovascular Diseases, Yonsei University Health System, Seoul 120-752, Republic of Korea
These authors contributed equally to this work

DOI 10.1007/s12274-013-0312-z

Nano Research 2013, 6(5): 356每364

Address correspondence to Seungjoo Haam, haam@yonsei.ac.kr; Jaemoon Yang, 177hum@yuhs.ac

We describe a solvent-shift method for the synthesis of water-soluble tri-arm polyethylene glycol chain-coated polyaniline nanoparticles which are able recognize redox activity in tumor cells.

    

Controlled Ag-driven superior rate-capability of Li4Ti5O12 anode for lithium rechargeable battery

Jae-Geun Kim1, Dongqi Shi1, Min-Sik Park2, Goojin Jeong2 (),  Yoon-Uk Heo3, Minsu Seo2, Young-Jun Kim2, Jung Ho Kim1 (),  and Shi Xue Dou1


1 Institute for Superconducting and Electronic Materials, University of Wollongong, North Wollongong, NSW 2500, Australia
2 Advanced Batteries Research Center, Korea Electronics Technology Institute, Seongnam 463-816, Republic of Korea
3 Research Facility Center, Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea

DOI 10.1007/s12274-013-0313-y

Nano Research 2013, 6(5): 365每372

Address correspondence to Jung Ho Kim, jhk@uow.edu.au; Goojin Jeong, gjeong@keti.re.kr

One-dimensional Ag每Li4Ti5O12 nanofibers show enhanced specific capacity, rate capability, and cycling stability compared to bare Li4Ti5O12 nanofibers, due to the Ag nanoparticles (<5 nm), which are mainly distributed at interfaces between Li4Ti5O12 primary particles.

    

Spin valve effect of NiFe/graphene/NiFe junctions

Muhammad Zahir Iqbal, Muhammad Waqas Iqbal, Jae Hong Lee, Yong Seung Kim, Seung-Hyun Chun, and Jonghwa Eom ()


Department of Physics and Graphene Research Institute, Sejong University, Seoul 143-747, Korea

DOI 10.1007/s12274-013-0314-x

Nano Research 2013, 6(5): 373每380

Address correspondence to eom@sejong.ac.kr

We report manifest spin valve effects from room temperature to 10 K in junctions comprising NiFe electrodes and an interlayer made of double-layer or single-layer graphene grown by chemical vapor deposition. It has been found that a graphene interlayer works not as a tunnel barrier but rather as a conducting thin film between the two NiFe electrodes.

    

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