Nature Nanotechnology Contents April 2014 Volume 9 Number 4 pp 241-323

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Advertisement Select Si, Ge, Au and more for Advanced FIB Nanofabrication!   Visit Raith and learn more about FIB Nanofabrication and ionLiNE's new Multi-Species Ion Beam Technology.  TABLE OF CONTENTS April 2014 Volume 9, Issue 4 Editorial Thesis Research Highlights News and Views Letters Article Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement 2nd Annual Graphene Supply, Application & Commercialisation 2014 (June 12th-13th, Manchester, UK) Speakers include: Samsung, Nokia, Phillips, Procter & Gamble, Thales, IBM, Solan PV, Lockheed Martin, Tata Steel, Bosch, Manchester University, TBA Electro Conductive Products, MTI Ventures and more. Save £100 When Registering By 17th April. Click here for more information.    Advertisement Nature Physics Insight: Foundations of quantum mechanics  Published in April 2014 this Insight explores recent trends in the study of the foundations of quantum mechanics: from expanding or even rethinking quantum theory, to ambitious new experiments that will seek the elusive effects of quantum gravity.    Editorial Top Investing in the future   p241 doi:10.1038/nnano.2014.74 Nanotechnology is an important tool in the fight against malaria. Thesis Top Synergy and reality   pp243 - 244 Chris Toumey doi:10.1038/nnano.2014.69 Reflecting on a provocative report from 2002 on the benefits of fusing different technologies, Chris Toumey considers the importance of being realistic about the potential of nanotechnology. Research Highlights Top Our choice from the recent literature   p245 doi:10.1038/nnano.2014.83 News and Views Top Optoelectronic devices: Monolayer diodes light up   pp247 - 248 Rudolf Bratschitsch doi:10.1038/nnano.2014.66 p–n diodes can be fabricated from a single layer of WSe2 crystal. See also: Letter by Pospischil et al. | Letter by Baugher et al. | Letter by Ross et al. Ultrasound imaging: Better contrast with vesicles   pp248 - 249 Mark Borden & Shashank Sirsi doi:10.1038/nnano.2014.68 Biologically derived, nanoscale gas vesicles can be used as ultrasound contrast agents. See also: Letter by Shapiro et al. Nanofluidics: Bubbles as osmotic membranes   pp249 - 251 Lydéric Bocquet doi:10.1038/nnano.2014.61 Nanoscale gas bubbles can act as selective membranes and be used to estimate the condensation coefficient of water. See also: Article by Lee et al. Electron-beam lithography: Going green with silk   pp251 - 252 Alex Robinson doi:10.1038/nnano.2014.70 Silk fibroin can be used as a photoresist in water-based electron-beam lithographic processing. See also: Letter by Kim et al. Optical tweezers: Dressed for success   pp252 - 253 Patrick C. Chaumet & Adel Rahmani doi:10.1038/nnano.2014.67 Controlled optical manipulation of a single dielectric nanoparticle is achieved with a bowtie nanoantenna placed at the end of the probe of a near-field scanning microscope. See also: Letter by Berthelot et al. Nanoscale MRI: Dark spins in the spotlight   pp253 - 255 Lloyd Hollenberg doi:10.1038/nnano.2014.65 A single nitrogen–vacancy centre can be used to probe the location of electron spins with subnanometre precision. See also: Letter by Grinolds et al. Nanotechnology JOBS of the week Assistant Professor - Nanotechnology in Ocular and Women's Health Johns Hopkins University Assistant Professor University of Cincinnati James L. Winkle College of Pharmacy PhD Surface Science Interdisciplinary Nanosience Center (iNANO) More Science jobs from Nanotechnology EVENT International Conference on Nanotechnology France 2014 15.10.14 Paris, France More science events from Letters Top Solar-energy conversion and light emission in an atomic monolayer p–n diode   pp257 - 261 Andreas Pospischil, Marco M. Furchi & Thomas Mueller doi:10.1038/nnano.2014.14 A p–n junction is fabricated in a monolayer of WSe2, which can be used as a solar cell, a photodiode and a light-emitting diode. See also: News and Views by Bratschitsch | Letter by Baugher et al. | Letter by Ross et al. Optoelectronic devices based on electrically tunable p–n diodes in a monolayer dichalcogenide   pp262 - 267 Britton W. H. Baugher, Hugh O. H. Churchill, Yafang Yang & Pablo Jarillo-Herrero doi:10.1038/nnano.2014.25 An electrostatically defined p–n junction in monolayer WSe2 is employed for photodetection, photovoltaic operation and as a light-emitting diode. See also: News and Views by Bratschitsch | Letter by Pospischil et al. | Letter by Ross et al. Electrically tunable excitonic light-emitting diodes based on monolayer WSe2 p–n junctions   pp268 - 272 Jason S. Ross, Philip Klement, Aaron M. Jones, Nirmal J. Ghimire, Jiaqiang Yan D. G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Kenji Kitamura, Wang Yao, David H. Cobden & Xiaodong Xu doi:10.1038/nnano.2014.26 Bright and electrostatically tunable electroluminescence from monolayer WSe2 p–n junctions is reported. See also: News and Views by Bratschitsch | Letter by Pospischil et al. | Letter by Baugher et al. Graphene photodetectors with ultra-broadband and high responsivity at room temperature   pp273 - 278 Chang-Hua Liu, You-Chia Chang, Theodore B. Norris & Zhaohui Zhong doi:10.1038/nnano.2014.31 A pair of stacked graphene layers separated by a tunnel barrier show sensitive photodetection capabilities. Subnanometre resolution in three-dimensional magnetic resonance imaging of individual dark spins   pp279 - 284 M. S. Grinolds, M. Warner, K. De Greve, Y. Dovzhenko, L. Thiel, R. L. Walsworth, S. Hong, P. Maletinsky & A. Yacoby doi:10.1038/nnano.2014.30 A single nitrogen–vacancy magnetometer can be used for imaging with lateral and vertical resolutions of 0.8 nm and 1.5 nm, respectively. See also: News and Views by Hollenberg Random nanolasing in the Anderson localized regime   pp285 - 289 J. Liu, P. D. Garcia, S. Ek, N. Gregersen, T. Suhr, M. Schubert, J. Mørk, S. Stobbe & P. Lodahl doi:10.1038/nnano.2014.34 Anderson localization of light in photonic-crystal waveguides enables highly efficient, stable and broadband random nanolasing. Third-harmonic-upconversion enhancement from a single semiconductor nanoparticle coupled to a plasmonic antenna   pp290 - 294 Heykel Aouani, Mohsen Rahmani, Miguel Navarro-Cía & Stefan A. Maier doi:10.1038/nnano.2014.27 The third-harmonic-generation efficiency of an individual indium tin oxide nanoparticle is enhanced by more than 106 fold by placing it within the gap of a plasmonic gold dimer nanoantenna. Three-dimensional manipulation with scanning near-field optical nanotweezers   pp295 - 299 J. Berthelot, S. S. Aćimović, M. L. Juan, M. P. Kreuzer, J. Renger & R. Quidant doi:10.1038/nnano.2014.24 Objects as small as 50 nm can be manipulated in three dimensions with near-field-based optical tweezers. See also: News and Views by Chaumet & Rahmani Engineering bright sub-10-nm upconverting nanocrystals for single-molecule imaging   pp300 - 305 Daniel J. Gargas, Emory M. Chan, Alexis D. Ostrowski, Shaul Aloni, M. Virginia P. Altoe, Edward S. Barnard, Babak Sanii, Jeffrey J. Urban, Delia J. Milliron, Bruce E. Cohen & P. James Schuck doi:10.1038/nnano.2014.29 Upconverting nanoparticles smaller than 10 nm are brighter when excited under single-particle conditions than when they are part of an ensemble. All-water-based electron-beam lithography using silk as a resist   pp306 - 310 Sunghwan Kim, Benedetto Marelli, Mark A. Brenckle, Alexander N. Mitropoulos, Eun-Seok Gil, Konstantinos Tsioris, Hu Tao, David L. Kaplan & Fiorenzo G. Omenetto doi:10.1038/nnano.2014.47 Silk can be used as a negative or positive biofunctional resist in an all-water electron-beam lithography process. See also: News and Views by Robinson Biogenic gas nanostructures as ultrasonic molecular reporters   pp311 - 316 Mikhail G. Shapiro, Patrick W. Goodwill, Arkosnato Neogy, Melissa Yin, F. Stuart Foster, David V. Schaffer & Steven M. Conolly doi:10.1038/nnano.2014.32 Gas vesicles, a class of protein nanostructure found naturally in microorganisms, are employed as ultrasound contrast agents for molecular imaging on the nanoscale. See also: News and Views by Borden & Sirsi Article Top Nanofluidic transport governed by the liquid/vapour interface   pp317 - 323 Jongho Lee, Tahar Laoui & Rohit Karnik doi:10.1038/nnano.2014.28 The condensation probability of water molecules hitting a liquid/vapour interface influences the mass transport of water across hydrophobic nanopores. See also: News and Views by Bocquet Top Advertisement Download the new NatureJournals app and gain access to Nature and all Nature-branded research and review journals. All news content and open access articles are free. 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