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Doping and alloying in atomically precise gold nanoparticles

Rongchao Jin1 and Katsuyuki Nobusada2 (*)

 

1 Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
2 Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan, and Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University Katsura, Kyoto 615-8520, Japan

DOI 10.1007/s12274-014-0403-5

Nano Research 2014, 7(3): 285每300

Address correspondence to Rongchao Jin, rongchao@andrew.cmu.edu; Katsuyuki Nobusada, nobusada@ims.ac.jp

Atomically precise gold nanoparticles provide unprecedented opportunities for doping and alloying at the single-atom level.

    

Ultrasmall Ag+-rich nanoclusters as highly efficient nanoreservoirs for bacterial killing

Xun Yuan, Magdiel I. Setyawati, David T. Leong (*), and

Jianping Xie (*)


Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore

DOI 10.1007/s12274-013-0395-6

Nano Research 2014, 7(3): 301每307

Address correspondence to J. Xie, chexiej@nus.edu.sg; D. T. Leong, cheltwd@nus.edu.sg

Ultrasmall thiolated Ag+-rich nanoclusters show higher antimicrobial activities than Ag0-rich nanoclusters with the same size and surface ligands.

    

Direct observation of Pt nanocrystal coalescence induced by electron-excitation-enhanced van der Waals interactions

Ying Jiang1, Yong Wang1 (*), Yu Yang Zhang2, Zhengfei Zhang1, Wentao Yuan1, Chenghua Sun3, Xiao Wei1, Casey N. Brodsky4, Chia-Kuang Tsung4, Jixue Li1, Xiaofeng Zhang5, Scott X. Mao6, Shengbai Zhang2 (*), and Ze Zhang1 (*)


1 Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
2 Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
3 Centre for Computational Molecular Science, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD 4072, Australia
4 Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA
5 Hitachi High Technologies America, Pleasanton, CA 94588, USA
6 Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA

DOI 10.1007/s12274-013-0396-5

Nano Research 2014, 7(3): 308每314

Address correspondence to Yong Wang, yongwang@zju.edu.cn; Shengbai Zhang, zhangs9@rpi.edu; Ze Zhang, zezhang@zju.edu.cn

Direct observation of Pt nanocrystal coalescence induced by electron-excitation-enhanced van der Waals interactions.

    

Synthesis and purification of long copper nanowires. Application to high performance flexible transparent electrodes with and without PEDOT:PSS

C谷line Mayousse, Caroline Celle, Alexandre Carella, and Jean-Pierre Simonato (*)


CEA, LITEN / DTNM / LCRE, 17 rue des Martyrs, 38054 Grenoble, France

DOI 10.1007/s12274-013-0397-4

Nano Research 2014, 7(3): 315每324

Address correspondence to Caroline Celle, caroline.celle@cea.fr; Jean-Pierre Simonato, jean-pierre.simonato@cea.fr00

High performance flexible transparent electrodes based on random networks of copper nanowires are reported. The crucial importance of chemical cleaning of copper nanowires with glacial acetic acid after the hydrothermal synthesis is revealed, giving access to transparent conductive films with excellent performances, typically 55 次/sq. at 94% transmittance, without any need for post-treatment. Encapsulation of Cu nanowire networks with PEDOT:PSS also provides an efficient route to very good transparent electrodes. Furthermore integration of these electrodes into flexible touch sensors is reported.

    

Gold nanorods with a hematoporphyrin-loaded silica shell for dual-modality photodynamic and photothermal treatment of tumors in vivo

Georgy Terentyuk1,4, Elizaveta Panfilova1,2, Vitaly Khanadeev1,2, Daniil Chumakov1, Elina Genina1, Alexey Bashkatov1, Valery Tuchin1,3,5, Alla Bucharskaya6, Galina Maslyakova6, Nikolai Khlebtsov1,2, and Boris Khlebtsov1,2 (*)


1 Saratov State University, 83 Astrakhanskaya, Saratov 410012, Russia
2 Institute of Biochemistry and Physiology of Plants and Microorganisms, 13 pr. Entuziastov, Saratov 410049, Russia
3 Institute of Precise Mechanics and Control of RAS, 24 Rabochaya, Saratov 410028, Russia
4 Ulyanovsk State University, 42 Lev Tolstoy, Ulyanovsk 432017, Russia
5 Optoelectronics and Measurement Techniques Laboratory, University of Oulu, P.O. Box 4500, Oulu FIN-90014, Finland
6 Saratov State Medical University, 112 Bolshaya Kazachia, Saratov, 410012, Russia

DOI 10.1007/s12274-013-0398-3

Nano Research 2014, 7(3): 325每337

Address correspondence to bkhl@ibppm.sgu.ru

Multifunctional nanocomposites consisting of gold nanorods with a hematoporphyrin (HP)-loaded mesoporous silica shell have been fabricated and employed in the combined photodynamic and photothermal treatment of large solid tumors in rats.

    

Tunable D peak in gated graphene

Anna Ott1, Ivan A. Verzhbitskiy1, Joseph Clough2, Axel Eckmann3, Thanasis Georgiou2, and Cinzia Casiraghi1,3 (*)


1 Physics Department, Freie Universität Berlin, Berlin 14195, Germany
2 School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
3 School of Chemistry, University of Manchester, Manchester M13 9PL, UK

DOI 10.1007/s12274-013-0399-2

Nano Research 2014, 7(3): 338每344

Address correspondence to cinzia.casiraghi@manchester.ac.uk

The D peak intensity of defective graphene is tunable and reversible with the gate voltage. This is attributed to chemical functionalization of graphene, driven by the water trapped between the substrate and graphene.

    

Quantitative study of protein coronas on gold nanoparticles with different surface modifications

Menghua Cui, Renxiao Liu, Zhaoyi Deng, Guanglu Ge, Ying Liu (*), and Liming Xie (*)

CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China

DOI 10.1007/s12274-013-0400-0

Nano Research 2014, 7(3): 345每352

Address correspondence to Liming Xie, xielm@nanoctr.cn; Ying Liu, liuy1@nanoctr.cn

Gold nanoparticles (AuNPs) surface modified by polyethylene glycol (PEG) showed no adsorption of proteins such as bovine serum albumin, transferrin and fibrinogen. For AuNP surfaces modified by other materials, the interactions between protein and AuNPs are strongly dependent on both the surface modifier and the protein.

    

Activating ZnO nanorod photoanodes in visible light by Cu ion implantation

Meng Wang1, Feng Ren2, Guangxu Cai2, Yichao Liu2, Shaohua Shen1 (), and Liejin Guo1


1 International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi*an Jiaotong University, Shaanxi 710049, China
2 School of Physics and Technology, Center for Ion Beam Application, Wuhan University, Wuhan 430072, China

DOI 10.1007/s12274-013-0401-7

Nano Research 2014, 7(3): 353每364

Address correspondence to shshen_xjtu@mail.xjtu.edu.cn

Cu ion doped ZnO nanorod arrays with Cu+ as the main dopant have been prepared by an advanced ion implantation method. The Cu ion doped ZnO nanorod arrays showed extended optical absorption edges and enhanced photoelectrochemical performance when compared with undoped ZnO.

    

Mechanistic study of substrate-based galvanic replacement reactions

Kyle D. Gilroy, Aarthi Sundar, Pouyan Farzinpour, Robert A. Hughes, and Svetlana Neretina ()


College of Engineering, Temple University, Philadelphia 19122, USA

DOI 10.1007/s12274-013-0402-y

Nano Research 2014, 7(3): 365每379

Address correspondence to neretina@temple.edu

Template design is used to control the surface morphologies of hollow substrate-based Au每Ag nanoshells and nanocages. The discovery is used to advance the mechanistic understanding of galvanic replacement reactions.

    

Ionic effects on the transport characteristics of nanowire-based FETs in a liquid environment

Daijiro Nozaki1 (), Jens Kunstmann1,2, Felix Zörgiebel1, Sebastian Pregl1, Larysa Baraban1, Walter M. Weber3, Thomas Mikolajick3, and Gianaurelio Cuniberti1,4,5


1 Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany
2 Department of Chemistry, Columbia University, 3000 Broadeway, New York, NY 10027, USA
3 NaMlab gGmbH, Nöthinger Str. 64, 01187 Dresden
4 Center for Advancing Electronics Dresden (cfAED), TU Dresden, 01062 Dresden, Germany
5 Dresden Center for Computational Materials Science (DCCMS), TU Dresden, 01062 Dresden, Germany

DOI 10.1007/s12274-013-0404-9

Nano Research 2014, 7(3): 380每389

Address correspondence to daijiro.nozaki@gmail.com; research@nano.tu-dresden.de

A simulation platform for quantum charge transport through 1D nanostructures in liquid environments is established and applied to silicon nanowire field effect transistors. The platform is used for the design and the optimization of nanowire-based chemical or biosensors. The reduction of the sensitivity of the sensor due to the formation of an electric double layer can be successfully reproduced.

    

Functionalized, carbon nanotube material for the catalytic degradation of organophosphate nerve agents

Mark M. Bailey1,† (), John M. Heddleston1, Jeffrey Davis2, Jessica L. Staymates2, and Angela R. Hight Walker1 ()


1 National Institute of Standards and Technology (NIST), Semiconductor and Dimensional Metrology Division, Gaithersburg, MD, USA
2 National Institute of Standards and Technology (NIST), Materials Measurement Science Division, Gaithersburg, MD, USA
Present Address: United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Center for Aerobiological Sciences, Fort Detrick, MD, USA

DOI 10.1007/s12274-014-0405-3

Nano Research 2014, 7(3): 390每398

Address correspondence to A.R. Hight Walker, angela.hightwalker@nist.gov; M. Bailey, mark.m.bailey2.mil@mail.mil

This study aims to develop a self-decontaminating, carbon nanotube- derived material that can ultimately be incorporated into a wearable fabric or protective material to minimize dermal exposure to organophosphate nerve agents.

    

Large-scale dendrimer-based uneven nanopatterns for the study of local arginine每glycine每aspartic acid (RGD) density effects on cell adhesion

Anna Lagunas1,2 (), Albert G. Castaño2,1, Juan M. Art谷s2,3,†, Yolanda Vida4,5, Daniel Collado4,5, Ezequiel P谷rez-Inestrosa4,5, Pau Gorostiza2,1,6, Silvia Claros7,1, Jos谷 A. Andrades7,1, and Josep Samitier1,2,8


1 Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), S
pain
2 Institute for Bioengineering of Catalonia (IBEC), Baldiri-Reixac 15-21, Barcelona 08028, Spain
3 Physical Chemistry Department, University of Barcelona (UB), Mart赤 i Franqu豕s 1-11, Barcelona 08028, Spain
4 Andalusian Centre for Nanomedicine and Biotechnology (BIONAND), Severo Ochoa 35, M芍laga 29590, Spain
5 Organic Chemistry Department, University of M芍laga (UMA), Campus Teatinos, M芍laga 29071, Spain
6 Instituci車 Catalana de Recerca i Estudis Avançats (ICREA), Spain
7 Cell Biology, Genetics and Physiology Department, University of M芍laga (UMA), Campus Teatinos, M芍laga 29071, Spain
8 Electronics Department, University of Barcelona (UB), Mart赤 i Franqu豕s 1-11, Barcelona 08028, Spain
Present address: Electrical and Computer Engineering Department, University of California Davis, 95616 Davis CA, USA

DOI 10.1007/s12274-014-0406-2

Nano Research 2014, 7(3): 399每409

Address correspondence to alagunas@ibecbarcelona.eu

Arginine每glycine每aspartic acid (RGD)-tailored dendrimer solutions have been used to create uneven distributions of RGD on Au(111) surfaces with tunable local ligand densities depending on the initial bulk concentration. Our dendrimer nanopatterning approach together with a detailed surface characterization permits the direct correlation between dendrimer surface disposition and cellular response.

    

Facile design of Au@Pt core每shell nanostructures: Formation of Pt submonolayers with tunable coverage and their applications in electrocatalysis

Fulin Zheng, Wing-Tak Wong , and Ka-Fu Yung ()


Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China

DOI 10.1007/s12274-014-0407-1

Nano Research 2014, 7(3): 410每417

Address correcpondence to Ka-Fu Yung, bckfyung@polyu.edu.hk; Wing-Tak Wong, bcwtwong@polyu.edu.hk

Au@Pt core每shell nanostructures with tunable Pt coverage have been successfully prepared through successive ion adsorption and in situ electrochemical reduction. These core每shell nanostructures may have great potential applications as fuel cell catalysts due to their special electrocatalytic properties which are strongly correlated with the Pt coverage.

    

Multifunctional organically modified graphene with super-hydrophobicity

Huawen Hu, Chan C. K. Allan, Jianhua Li, Yeeyee Kong, Xiaowen Wang, John H. Xin (), and Hong Hu ()


Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region (SAR) 999077, China

DOI 10.1007/s12274-014-0408-0

Nano Research 2014, 7(3): 418每433

Address correspondence to John H. Xin, john.xin@polyu.edu.hk; Hong Hu, hu.hong@polyu.edu.hk

A multifunctional organically modified graphene with superhydrophobicity has been synthesized by a novel one-step organic modification of a low-temperature thermally functionalized graphene. A unique structural topology is found to exist in the as-prepared low-temperature thermally functionalized graphene, along with a portion of reactive oxygen functionalities preserved (see Figure), which facilitates the subsequent highly effective fabrication of an organically modified graphene derivative with multifunctional applications in liquid marbles and polymer nanocomposites.

    

A ※green pathway§ different from simple diffusion in soft matter: Fast molecular transport within micro/nanoscale multiphase porous systems

Jiantao Feng1,3, Fang Wang2, Xinxiao Han1, Zhuo Ao1, Quanmei Sun1,3, Wenda Hua1, Peipei Chen1, Tianwei Jing4, Hongyi Li1,2 (), and Dong Han1 ()


1 National Center for Nanoscience and Technology, Beijing 100190, China
2 Cardiology Division, Beijing Hospital of the Ministry of Health, Beijing 100730, China
3 Department of Chemistry, Tsinghua University, Beijing 100084, China
4 Nano Science Solution Division, Agilent Technologies Inc, Chandler, Arizona 85226, USA

DOI 10.1007/s12274-014-0409-z

Nano Research 2014, 7(3): 434每442

Address correspondence to Dong Han, dhan@nanoctr.cn; Hongyi Li, Leehongyi@nanoctr.cn

A nanoconfined multiphase effect mediates fast molecular transport within micro/nanoscale multiphase porous media, such as most living tissues and components.

    

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