Nature Nanotechnology Contents July 2013 Volume 8 Number 7 pp 469 - 538

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TABLE OF CONTENTS July 2013 Volume 8, Issue 7 Editorial Correspondence Commentary Thesis Research Highlights News and Views Letters Articles Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature proudly sponsors the Imagine Science Film Awards Where science meets cinema Submit your film and compete for the $2,500 Nature Scientific Merit Award and the $1,000 Nature Audience Award www.imaginesciencefilms.org/festival/submit-your-film     Editorial Top Reflections on thermoelectrics   p469 doi:10.1038/nnano.2013.141 On the twentieth anniversary of two influential papers we consider past developments and future opportunities for thermoelectric materials. Correspondence Top Dissipative feedback does not improve the optimal resolution of incoherent force detection   p470 A. Vinante, M. Bonaldi, F. Marin & J-P. Zendri doi:10.1038/nnano.2013.130 Commentary Top When thermoelectrics reached the nanoscale   pp471 - 473 Joseph P. Heremans, Mildred S. Dresselhaus, Lon E. Bell & Donald T. Morelli doi:10.1038/nnano.2013.129 The theoretical work done by Lyndon Hicks and Mildred Dresselhaus 20 years ago on the effect of reduced dimensionality on thermoelectric efficiency has had deep implications beyond the initial expectations. Thesis Top Nanobots today   pp475 - 476 Chris Toumey doi:10.1038/nnano.2013.128 Nanobots have in the past been a fixture of science fiction writing and illustration, and such ideas are now also appearing in scientific research. But, as Chris Toumey explains, practical nanobots are different from their science fiction counterparts. Research Highlights Top Our choice from the recent literature   p477 doi:10.1038/nnano.2013.135 News and Views Top Plasmonic lasers: A sense of direction   pp479 - 480 Jorge Bravo-Abad & Francisco J. García-Vidal doi:10.1038/nnano.2013.123 Lattice surface plasmons enable large-area unidirectional emission of coherent light generated at deep subwavelength scales. See also: Letter by Zhou et al. Single-molecule detection: Breaking the concentration barrier   pp480 - 482 Philip Tinnefeld doi:10.1038/nnano.2013.122 The combination of a plasmonic nanoantenna and a nanoaperture has merged fluorescence enhancement and spatial confinement to enable single-molecule detection at biologically relevant concentrations. See also: Letter by Punj et al. Nanomechanics: Sensing from the bottom up   pp482 - 483 Martino Poggio doi:10.1038/nnano.2013.124 Ultrasensitive nanomechanical transducers based on carbon nanotubes can be fabricated using a bottom-up assembly method. See also: Letter by Moser et al. Sensors: Good vibrations for bad bacteria   pp483 - 484 Rachel A. McKendry & Natascha Kappeler doi:10.1038/nnano.2013.127 The response of bacteria to antibiotics can be quickly assessed by monitoring the fluctuations of cantilevers coated with the bacteria. See also: Letter by Longo et al. Spintronics: Chiral domain walls move faster   pp485 - 486 Arne Brataas doi:10.1038/nnano.2013.126 Magnetic domain walls in ultrathin films have a handedness that makes them move at high speeds when an electrical current is applied. See also: Article by Ryu et al. Nanotechnology JOBS of the week Tenure-Track Positions (Seventh Term) at Nanoscience and Nanotechnology Research Center Osaka Prefecture University SFC Funded Places Available: Engineering and Computing Science College of Science and Engineering, University of Glasgow Post-Doctoral Research Position TU Ilmenau Stanford Synchrotron Radiation Lightsource (SSRL) Director SLAC National Accelerator Laboratory (Stanford University) Head of research Nanoscience for life GmbH More Science jobs from Nanotechnology EVENT 4th International Conference on Ultrafine Grained and Nanostructured Materials 05.11.13 Tehran, Iran More science events from Letters Top Readout and control of a single nuclear spin with a metastable electron spin ancilla   pp487 - 492 Sang-Yun Lee, Matthias Widmann, Torsten Rendler, Marcus W. Doherty Thomas M. Babinec Sen Yang, Moritz Eyer, Petr Siyushev, Birgit J. M. Hausmann, Marko Loncar, Zoltán Bodrog, Adam Gali, Neil B. Manson, Helmut Fedder & Jörg Wrachtrup doi:10.1038/nnano.2013.104 An unidentified defect in diamond is used to demonstrate optical spin polarization and readout with high contrast. Ultrasensitive force detection with a nanotube mechanical resonator   pp493 - 496 J. Moser, J. Guttinger, A. Eichler, M. J. Esplandiu, D. E. Liu, M. I. Dykman & A. Bachtold doi:10.1038/nnano.2013.97 A record force sensitivity at low temperatures is now reported using a carbon nanotube mechanical resonator. See also: News and Views by Poggio Ultrasensitive photodetectors based on monolayer MoS2   pp497 - 501 Oriol Lopez-Sanchez, Dominik Lembke, Metin Kayci, Aleksandra Radenovic & Andras Kis doi:10.1038/nnano.2013.100 A very sensitive photodector based on molybdenum disulphide with potential for integrated optoelectronic circuits, light sensing, biomedical imaging, video recording or spectroscopy is now demonstrated. Bright, long-lived and coherent excitons in carbon nanotube quantum dots   pp502 - 505 Matthias S. Hofmann, Jan T. Glückert, Jonathan Noé, Christian Bourjau, Raphael Dehmel & Alexander Högele doi:10.1038/nnano.2013.119 Exciton localization in suspended carbon nanotubes leads to bright fluoresence with an ultranarrow linewidth and long lifetime. Lasing action in strongly coupled plasmonic nanocavity arrays   pp506 - 511 Wei Zhou, Montacer Dridi, Jae Yong Suh, Chul Hoon Kim, Dick T. Co, Michael R. Wasielewski, George C. Schatz & Teri W. Odom doi:10.1038/nnano.2013.99 Two-dimensional arrays of plasmonic nanoparticles coupled with a gain medium can behave as a surface-emitting laser with near-zero group velocity and picosecond dynamics. See also: News and Views by Bravo-Abad & Garcia-Vidal A plasmonic ‘antenna-in-box’ platform for enhanced single-molecule analysis at micromolar concentrations   pp512 - 516 Deep Punj, Mathieu Mivelle, Satish Babu Moparthi, Thomas S. van Zanten, Herve Rigneault, Niek F. van Hulst, María F. García-Parajó & Jérôme Wenger doi:10.1038/nnano.2013.98 A plasmonic nanoantenna enables a thousand fold-enhanced fluorescence brightness allowing single-molecule analysis to be carried out in a zeptolitre volume at physiological concentrations. See also: News and Views by Tinnefeld Silicon chips detect intracellular pressure changes in living cells   pp517 - 521 Rodrigo Gomez-Martinez, Alberto M. Hernandez-Pinto, Marta Duch, Patricia Vazquez, Kirill Zinoviev, Enrique J. de la Rosa, Jaume Esteve, Teresa Suárez & José A. Plaza doi:10.1038/nnano.2013.118 Direct measurements of pressure inside living cells can now be made non-invasively using a nanomechanical silicon chip. Rapid detection of bacterial resistance to antibiotics using AFM cantilevers as nanomechanical sensors   pp522 - 526 G. Longo, L. Alonso-Sarduy, L. Marques Rio, A. Bizzini, A. Trampuz, J. Notz, G. Dietler & S. Kasas doi:10.1038/nnano.2013.120 Highly sensitive cantilever sensors can now be used to quantitatively characterize a bacterial response to drugs before they even replicate. See also: News and Views by McKendry & Kappeler Articles Top Chiral spin torque at magnetic domain walls   pp527 - 533 Kwang-Su Ryu, Luc Thomas, See-Hun Yang & Stuart Parkin doi:10.1038/nnano.2013.102 The influence of magnetic fields on the current-driven motion of domain walls in nanowires with perpendicular anisotropy shows that two spin–orbit-derived mechanisms are responsible for their motion. See also: News and Views by Brataas Observation of room-temperature ballistic thermal conduction persisting over 8.3 µm in SiGe nanowires   pp534 - 538 Tzu-Kan Hsiao, Hsu-Kai Chang, Sz-Chian Liou, Ming-Wen Chu, Si-Chen Lee & Chih-Wei Chang doi:10.1038/nnano.2013.121 SiGe nanowires exhibit ballistic thermal conduction at room temperature with a long phonon mean free path. Top Advertisement WE launched in 2011 YOU published 2000 papers with us OUR impact factor is 2.927* Discover what we can do together.  nature.com/scientificreports   *2012 Journal Citation Reports® (Thomson Reuters, 2013)     Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. 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