Nature Nanotechnology Contents April 2013 Volume 8 Number 4 pp 221 - 304

Advertisement Writing with both hands simultaneously? Visit Raith and learn about simultaneous electron and ion beam lithography. TABLE OF CONTENTS April 2013 Volume 8, Issue 4 Editorial Commentary Thesis Research Highlights News and Views Review Letters Articles Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Subscribe to Nature Nanotechnology today! Ensure you are abreast of the most significant research in nanoscience and nanotechnology by subscribing to Nature Nanotechnology. Subscribe online here.   Editorial Top Graphene in the heart of Europe   p221 doi:10.1038/nnano.2013.64 Graphene has been chosen as one of the European Commission's billion-euro flagship projects and has cemented its central position in European research. Commentary Top The insurability of nanomaterial production risk   pp222 - 224 Martin Mullins, Finbarr Murphy, Lijana Baublyte, Eamonn M. McAlea and Syed A. M. Tofail doi:10.1038/nnano.2013.53 Without insurance the long-term sustainability of nanotechnology is questionable, but insurance companies are encumbered by their institutional memory of losses from the asbestos crisis and the absence of suitable actuarial models to measure the potential risks of nanotechnology. Here we propose a framework that supports the transfer of nanomaterial production risk to the insurance sector. Thesis Top The three sisters of risk   pp225 - 226 Chris Toumey doi:10.1038/nnano.2013.52 A recent book on risk in nanotechnology highlights the different forms of risk studies — analysis, perception and communication — and explores the relationships that exist between them. Chris Toumey reports. Research Highlights Top Our choice from the recent literature   p227 doi:10.1038/nnano.2013.57 News and Views Top Plasmonics: Harvest season for hot electrons   pp229 - 230 Hamidreza Chalabi and Mark L. Brongersma doi:10.1038/nnano.2013.49 The excitation of plasmons in nanostructured metallic electrodes generates short-lived highly energetic carriers that can be injected into the conduction band of a semiconductor and used to drive artificial photosynthesis. See also: Letter by Mubeen et al. Molecular electronics: Reflections on charge transport   pp230 - 231 Georg Heimel and Jean-Luc Brédas doi:10.1038/nnano.2013.42 By varying the distance between two electrodes bridged by a single molecule, the interaction between charges passing through the molecular junction and their mirror images in the metal contacts can be observed. See also: Article by Perrin et al. Spintronics: Getting current pulses under control   pp232 - 233 Richard D. Averitt doi:10.1038/nnano.2013.51 Ultrafast spin currents in iron-based heterostructures generate terahertz radiation bursts whose frequency can be tailored through structural engineering. See also: Letter by Kampfrath et al. Quantum information: Atoms and circuits unite in silicon   pp233 - 234 Andrea Morello doi:10.1038/nnano.2013.50 While the size of silicon transistors in conventional computers shrinks towards the atomic scale, the quantum states of atoms and quantum dots in silicon are being investigated for quantum information processing. Review Top Raman spectroscopy as a versatile tool for studying the properties of graphene   pp235 - 246 Andrea C. Ferrari and Denis M. Basko doi:10.1038/nnano.2013.46 Advances in the understanding of Raman processes in graphene have made it an essential tool for studying the properties of this one-atom-thick carbon material. Letters Top An autonomous photosynthetic device in which all charge carriers derive from surface plasmons   pp247 - 251 Syed Mubeen, Joun Lee, Nirala Singh, Stephan Krämer, Galen D. Stucky and Martin Moskovits doi:10.1038/nnano.2013.18 Water is split into H2 and O2 by charges deriving exclusively from plasmon excitation in a wireless device. See also: News and Views by Chalabi & Brongersma An electromechanically reconfigurable plasmonic metamaterial operating in the near-infrared   pp252 - 255 Jun-Yu Ou, Eric Plum, Jianfa Zhang and Nikolay I. Zheludev doi:10.1038/nnano.2013.25 Electrostatic forces drive mechanical reconfiguration of a photonic metamaterial and enable megahertz-frequency electric modulation of its optical properties. Terahertz spin current pulses controlled by magnetic heterostructures   pp256 - 260 T. Kampfrath, M. Battiato, P. Maldonado, G. Eilers, J. Nötzold, S. Mährlein, V. Zbarsky, F. Freimuth, Y. Mokrousov, S. Blügel, M. Wolf, I. Radu, P. M. Oppeneer and M. Münzenberg doi:10.1038/nnano.2013.43 Through properly designed heterostructures it is possible to control the shape and duration of spin current pulses generated by laser excitation. See also: News and Views by Averitt Bipolar spin blockade and coherent state superpositions in a triple quantum dot   pp261 - 265 M. Busl, G. Granger, L. Gaudreau, R. Sánchez, A. Kam, M. Pioro-Ladrière, S. A. Studenikin, P. Zawadzki, Z. R. Wasilewski, A. S. Sachrajda and G. Platero doi:10.1038/nnano.2013.7 Transport measurements in triple quantum dots reveal a bidirectional Pauli spin blockade, and that electron transport occurs through electronic states that are extended over the three dots. Ferromagnetic dislocations in antiferromagnetic NiO   pp266 - 270 Issei Sugiyama, Naoya Shibata, Zhongchang Wang, Shunsuke Kobayashi, Takahisa Yamamoto and Yuichi Ikuhara doi:10.1038/nnano.2013.45 Magnetic force microscopy imaging reveals that individual dislocations in antiferromagnetic NiO crystals show ferromagnetic behaviour originating from the local atomic-scale structure. Orientation of luminescent excitons in layered nanomaterials   pp271 - 276 Jon A. Schuller, Sinan Karaveli, Theanne Schiros, Keliang He, Shyuan Yang, Ioannis Kymissis, Jie Shan and Rashid Zia doi:10.1038/nnano.2013.20 Energy-momentum spectroscopy is used to identify distinct intra- and interlayer exciton species in MoS2 and a perylene derivative. Nanowire liquid pumps   pp277 - 281 Jian Yu Huang, Yu-Chieh Lo, Jun Jie Niu, Akihiro Kushima, Xiaofeng Qian, Li Zhong, Scott X. Mao and Ju Li doi:10.1038/nnano.2013.41 The flow of nanoscale liquids along the outer surface of solid nanowires at a scale of attolitres per second can be directly imaged with in situ transmission electron microscopy and explained through theoretical analysis. Articles Top Large tunable image-charge effects in single-molecule junctions   pp282 - 287 Mickael L. Perrin, Christopher J. O. Verzijl, Christian A. Martin, Ahson J. Shaikh, Rienk Eelkema, Jan H. van Esch, Jan M. van Ruitenbeek, Joseph M. Thijssen, Herre S. J. van der Zant and Diana Duli? doi:10.1038/nnano.2013.26 Electrically and mechanically tunable molecular junctions show large image-charge effects. See also: News and Views by Heimel & Brédas Multistep protein unfolding during nanopore translocation   pp288 - 295 David Rodriguez-Larrea and Hagan Bayley doi:10.1038/nnano.2013.22 The unfolding pathway of a model protein during translocation through a transmembrane pore differs from that in solution. Activation of different split functionalities on re-association of RNA-DNA hybrids   pp296 - 304 Kirill A. Afonin, Mathias Viard, Angelica N. Martins, Stephen J. Lockett, Anna E. Maciag, Eric O. Freed, Eliahu Heldman, Luc Jaeger, Robert Blumenthal and Bruce A. Shapiro doi:10.1038/nnano.2013.44 RNA–DNA hybrids carrying split functionalities can re-associate inside cells and activate RNA interference to selectively suppress certain genes. Top Advertisement Submit your next paper to Nature Nanotechnology The Nature Nanotechnology editorial team is accepting manuscripts from researchers in all disciplines who are active at the frontiers of this diverse and multidisciplinary field. 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