Nature Nanotechnology Contents February 2015 Volume 10 Number 2 pp101-184

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Advertisement Leica EM Cryo CLEM Solution:  One System to Serve Your Workflow Needs in Correlative Light and Electron Microscopy  Ensure fast localization of target structures in your cryo-fixed biological sample with the world’s first cryo CLEM objective and transfer cryo samples easily and safely to the electron microscope with a transfer shuttle. Seeing is believing - Request a demo of the Leica EM Cryo CLEM solution. TABLE OF CONTENTS February 2015 Volume 10, Issue 2 Editorials Research Highlights News and Views Review Letters Articles In The Classroom Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Now open for submissions Microsystems and Nanoengineering is the first engineering journal to be published by the Nature Publishing Group. Submit your manuscript on: http://mts-micronano.nature.com/  Review the Benefits to Authors and Submit your next paper today!      Editorials Top Exploring the energy landscape   p101 doi:10.1038/nnano.2015.20 The search for emerging properties in far-from-equilibrium supramolecular systems is just beginning. Can we be more social?   p101 doi:10.1038/nnano.2015.21 The social and economic issues surrounding nanotechnology should not be forgotten. Research Highlights Top Our choice from the recent literature   p102 doi:10.1038/nnano.2015.12 News and Views Top Molecular histology: More than a picture   pp103 - 104 Richard W. Vachet doi:10.1038/nnano.2015.4 A label-free mass spectrometry imaging method maps the locations of carbon nanomaterials injected into mice through the detection of small carbon clusters. See also: Article by Chen et al. Nitrogen-vacancy centres: Nanoscale MRI   pp104 - 106 Vidya Praveen Bhallamudi and P. Chris Hammel doi:10.1038/nnano.2015.7 Sensitive measurement of nitrogen-vacancy centres close to the surface of diamond enables magnetic resonance imaging with a resolution of a few nanometres in ambient conditions. See also: Letter by Rugar et al. | Letter by Häberle et al. | Letter by DeVience et al. Piezoelectricity: Now in two dimensions   pp106 - 107 Evan J. Reed doi:10.1038/nnano.2014.319 Single layers of molybdenum disulphide can exhibit piezoelectric effects. See also: Letter by Zhu et al. Nanostructured lasers: Electrons and holes get closer   pp107 - 109 Chee-Keong Tan and Nelson Tansu doi:10.1038/nnano.2014.333 Nanowires that exhibit very sharp emission due to the formation of quantum states within them have been used to fabricate low threshold current lasers emitting ultraviolet light. See also: Letter by Li et al. Ferroelectric nanostructures: Domain walls in motion   pp109 - 110 Jan Seidel doi:10.1038/nnano.2015.3 Voltage pulses can be used to controllably displace ferroelectric domain walls at the nanoscale. See also: Letter by McGilly et al. Nature Nanotechnology JOBS of the week Senior research associate in nanotechnology for biodetection Houston Methodist Research Institute Postdoctoral Position available in Microfluidic bioanalysis University of Texas at El Paso Postdoctoral Fellow - Molecular Biology / Nanotechnology University of Michigan, School of Dentistry Postdoctoral Research Fellow Memorial Sloan Kettering Cancer Center (MSKCC) More Science jobs from Nature Nanotechnology EVENT ICNFA'15 - 6th International Conference on Nanotechnology: Fundamentals and Applications 15.07.15 Barcelona, Spain More science events from Review Top Supramolecular systems chemistry   pp111 - 119 Elio Mattia and Sijbren Otto doi:10.1038/nnano.2014.337 The merging of supramolecular chemistry and systems chemistry is beginning to unveil the richness of emerging physicochemical properties attainable by exploiting far-from-equilibrium systems, as this Review explains. Letters Top Proton magnetic resonance imaging using a nitrogen–vacancy spin sensor   pp120 - 124 D. Rugar, H. J. Mamin, M. H. Sherwood, M. Kim, C. T. Rettner, K. Ohno and D. D. Awschalom doi:10.1038/nnano.2014.288 Two-dimensional magnetic resonance imaging of hydrogen in organic samples with a resolution of 12 nm can be achieved by using the spin of a nitrogen–vacancy centre in diamond as a sensor. See also: News and Views by Bhallamudi & Hammel Nanoscale nuclear magnetic imaging with chemical contrast   pp125 - 128 T. Häberle, D. Schmid-Lorch, F. Reinhard and J. Wrachtrup doi:10.1038/nnano.2014.299 A nitrogen–vacancy centre in diamond can be used as a probe in a scanning probe microscope to image different chemical species on various substrates. See also: News and Views by Bhallamudi & Hammel Nanoscale NMR spectroscopy and imaging of multiple nuclear species   pp129 - 134 Stephen J. DeVience, Linh M. Pham, Igor Lovchinsky, Alexander O. Sushkov, Nir Bar-Gill, Chinmay Belthangady, Francesco Casola, Madeleine Corbett, Huiliang Zhang, Mikhail Lukin, Hongkun Park, Amir Yacoby and Ronald L. Walsworth doi:10.1038/nnano.2014.313 A nitrogen-vacancy centre in diamond can be used as a probe for nanoscale NMR and MRI of multiple nuclear species. See also: News and Views by Bhallamudi & Hammel Ultrafast electronic readout of diamond nitrogen-vacancy centres coupled to graphene   pp135 - 139 Andreas Brenneis, Louis Gaudreau, Max Seifert, Helmut Karl, Martin S. Brandt, Hans Huebl, Jose A. Garrido, Frank H. L. Koppens and Alexander W. Holleitner doi:10.1038/nnano.2014.276 Excitation transfer between nitrogen-vacancy centres and graphene can be used to detect the spin of the electron in the nitrogen-vacancy centre through electrical measurements. Ultralow-threshold electrically injected AlGaN nanowire ultraviolet lasers on Si operating at low temperature   pp140 - 144 K. H. Li, X. Liu, Q. Wang, S. Zhao and Z. Mi doi:10.1038/nnano.2014.308 Anderson localization of light in AlGaN–GaN nanowires is exploited to fabricate ultraviolet laser arrays with a lasing threshold of only a few tens of amperes per centimetre squared at cryogenic temperature. See also: News and Views by Tan & Tansu Controlling domain wall motion in ferroelectric thin films   pp145 - 150 L. J. McGilly, P. Yudin, L. Feigl, A. K. Tagantsev and N. Setter doi:10.1038/nnano.2014.320 The nucleation and position of multiple domain walls in thin films of Pb(Zr,Ti)O3 can be controlled by voltage pulses applied to a top Pt electrode. See also: News and Views by Seidel Observation of piezoelectricity in free-standing monolayer MoS2   pp151 - 155 Hanyu Zhu, Yuan Wang, Jun Xiao, Ming Liu, Shaomin Xiong, Zi Jing Wong, Ziliang Ye, Yu Ye, Xiaobo Yin and Xiang Zhang doi:10.1038/nnano.2014.309 Free-standing monolayers of MoS2 exhibit piezoelectric behaviour due to inversion symmetry breaking. See also: News and Views by Reed Molecular bandgap engineering of bottom-up synthesized graphene nanoribbon heterojunctions   pp156 - 160 Yen-Chia Chen, Ting Cao, Chen Chen, Zahra Pedramrazi, Danny Haberer, Dimas G. de Oteyza, Felix R. Fischer, Steven G. Louie and Michael F. Crommie doi:10.1038/nnano.2014.307 Width-modulated heterostructures are created in graphene nanoribbons using a bottom-up approach, thus achieving molecular-scale bandgap engineering. Macroscopic contraction of a gel induced by the integrated motion of light-driven molecular motors   pp161 - 165 Quan Li, Gad Fuks, Emilie Moulin, Mounir Maaloum, Michel Rawiso, Igor Kulic, Justin T. Foy and Nicolas Giuseppone doi:10.1038/nnano.2014.315 The coordinated motion of molecular rotors embedded in a gel network causes the material to contract on constant irradiation. Molecular wear of microtubules propelled by surface-adhered kinesins   pp166 - 169 Emmanuel L. P. Dumont, Catherine Do and Henry Hess doi:10.1038/nnano.2014.334 Microtubules gliding across a surface coated with kinesin-1 motor proteins undergo wear; a process that energetic considerations suggest involves a molecule-by-molecule removal of tubulin proteins. Articles Top Non-blinking quantum dot with a plasmonic nanoshell resonator   pp170 - 175 Botao Ji, Emerson Giovanelli, Benjamin Habert, Piernicola Spinicelli, Michel Nasilowski, Xiangzhen Xu, Nicolas Lequeux, Jean-Paul Hugonin, Francois Marquier, Jean-Jacques Greffet and Benoit Dubertret doi:10.1038/nnano.2014.298 Quantum dots encapsulated in a gold nanoshell provide a hybrid plasmonic–fluorescent emitter with increased stability against high power excitation or drastic changes in the environment. Mass spectrometry imaging reveals the sub-organ distribution of carbon nanomaterials   pp176 - 182 Suming Chen, Caiqiao Xiong, Huihui Liu, Qiongqiong Wan, Jian Hou, Qing He, Abraham Badu-Tawiah and Zongxiu Nie doi:10.1038/nnano.2014.282 Ionic species produced from carbon-based nanomaterials on exposure to an ultraviolet laser can be detected by the mass spectrometer, and these carbon cluster species are used to map and quantify the distribution of nanomaterials in mice. See also: News and Views by Vachet In The Classroom Top Remodelling technology transfer   p184 Emmanuel L. P. Dumont doi:10.1038/nnano.2015.8 Should inventors control the fate of their own inventions? In the US, most universities think not. But, as Emmanuel Dumont explains, the Jacobs Technion-Cornell Institute at Cornell Tech in New York City bets otherwise. 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