Nature Materials contents: May 2015 Volume 14 Number 5 pp 453-540

If you are unable to see the message below, click here to view.

TABLE OF CONTENTS May 2015 Volume 14, Issue 5 Editorial Commentaries Research Highlights News and Views Letters Articles Corrigendum Advertisement   Ready for a glimpse of tomorrow? Visit KAUST Discovery today   KAUST Discovery highlights the cutting-edge research, technologies and innovations emerging from the King Abdullah University of Science and Technology.   http://discovery.kaust.edu.sa Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Outlook Biomaterials The Nature Outlook: Biomaterials examines the many ways in which solutions created by the natural world — by spiders, mussels, geckos, lotus leaves and more — are inspiring technological imitations that surpass some of the best existing human-engineered substances.  Access the Outlook free online for six months. Produced with support from: KISCO Ltd. in association with Spiber Inc.     Editorial Top Let there be light   p453 doi:10.1038/nmat4287 Inorganic semiconductors, organic emitters and colloidal quantum dots are pushing the LED revolution in lighting and displays. Commentaries Top A revolution in lighting   pp454 - 458 Philipp Pust, Peter J. Schmidt and Wolfgang Schnick doi:10.1038/nmat4270 Key materials discoveries have prompted the rise of inorganic light-emitting diodes in the lighting industry. Remaining challenges are being addressed to further extend the impact of this technology in lighting, displays and other applications. Complementary LED technologies   pp459 - 462 Sebastian Reineke doi:10.1038/nmat4277 Organic semiconducting molecules and colloidal quantum dots both make for excellent luminescent materials. Compared with the more established solid-state light-emitting technologies, organic LEDs and quantum-dot LEDs are in their infancy, yet they offer unique properties. Research Highlights Top Superconductivity: Splitting Cooper pairs | Biomaterials: Tearing skin | Liquid metals: Self-propelled droplets | Metamaterials: Thermally tunable | Cell migration: Speed-persistence coupling News and Views Top Colloidal nanoplatelets: Energy transfer is speeded up in 2D   pp464 - 465 Iwan Moreels doi:10.1038/nmat4246 When efficient energy transfer under high carrier densities is required, two-dimensional nanoplatelets are the material of choice, combining an exceptional suppression of nonlinear fluorescence quenching with ultrafast transfer capabilities. See also: Letter by Rowland et al. Molecular junctions: Single-molecule contacts exposed   pp465 - 466 Richard J. Nichols and Simon J. Higgins doi:10.1038/nmat4225 Using a scanning tunnelling microscopy-based method it is now possible to get an atomistic-level description of the most probable binding and contact configuration for single-molecule electrical junctions. See also: Article by Rascón-Ramos et al. High pressure: Compressed hydrogen heats up   pp466 - 468 Wendy L. Mao doi:10.1038/nmat4245 The finding of a new molecular phase in hydrogen under high pressure and moderate temperature adds to the complexity of its phase diagram. See also: Letter by Howie et al. Quantum computing: Silicon qubits   p468 Maria Maragkou doi:10.1038/nmat4280 Metal–organic frameworks: Breaking bad chemicals down   pp469 - 470 Matthew J. Rosseinsky, Martin W. Smith and Christopher M. Timperley doi:10.1038/nmat4272 A metal–organic framework with large pores catalytically destroys chemical warfare agents. See also: Letter by Mondloch et al. Drug delivery: Puncturing cells en masse   pp470 - 471 Mark R. Prausnitz doi:10.1038/nmat4274 Porous silicon nanoneedles efficiently puncture cell monolayers, delivering biomolecules into cells both in vitro and in vivo. See also: Article by Chiappini et al. Material witness: Concrete mixing for gorillas   p472 Philip Ball doi:10.1038/nmat4279 Nature Materials JOBS of the week Senior Scientist - Tenure Track Paul Scherrer Institut (PSI) More Science jobs from Nature Materials EVENT International Conference on Diamond and Carbon Materials 2015 06.09.15 Homburg, Germany More science events from Letters Top High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator   pp473 - 477 Cui-Zu Chang, Weiwei Zhao, Duk Y. Kim, Haijun Zhang, Badih A. Assaf, Don Heiman, Shou-Cheng Zhang, Chaoxing Liu, Moses H. W. Chan and Jagadeesh S. Moodera doi:10.1038/nmat4204 An almost ideal quantum anomalous Hall state is observed in (Bi,Sb)Te films doped with vanadium. This state is reached without the application of a polarizing magnetic film, making these materials interesting for low-power electronic applications. Universal helimagnon and skyrmion excitations in metallic, semiconducting and insulating chiral magnets   pp478 - 483 T. Schwarze, J. Waizner, M. Garst, A. Bauer, I. Stasinopoulos, H. Berger, C. Pfleiderer and D. Grundler doi:10.1038/nmat4223 The resonant microwave excitation response of metals, semiconductors and insulating chiral magnets is studied by examining their entire magnetic phase diagrams, which includes the skyrmion lattice phase. A unified model to explain this response is also developed. Picosecond energy transfer and multiexciton transfer outpaces Auger recombination in binary CdSe nanoplatelet solids   pp484 - 489 Clare E. Rowland, Igor Fedin, Hui Zhang, Stephen K. Gray, Alexander O. Govorov, Dmitri V. Talapin and Richard D. Schaller doi:10.1038/nmat4231 Fast fluorescence resonance energy transfer between CdSe nanoplatelets on a picosecond timescale is measured. This process is faster than Auger recombination and leads to the observation of multiexcitonic energy transfer in these materials. See also: News and Views by Moreels Hybrid optical–electrical detection of donor electron spins with bound excitons in silicon   pp490 - 494 C. C. Lo, M. Urdampilleta, P. Ross, M. F. Gonzalez-Zalba, J. Mansir, S. A. Lyon, M. L. W. Thewalt and J. J. L. Morton doi:10.1038/nmat4250 A scheme of hybrid optical–electrical detection of an ensemble of donor electrons bound to phosphorus in silicon reveals electron spin Rabi oscillations and long coherence times, setting the foundations for a single-electron spin read-out technique. Raman spectroscopy of hot hydrogen above 200 GPa   pp495 - 499 Ross T. Howie, Philip Dalladay-Simpson and Eugene Gregoryanz doi:10.1038/nmat4213 Obtaining reliable high-pressure data from hydrogen at elevated temperatures presents considerable experimental challenges. It is now shown that a new phase transition occurs above 200 GPa as temperature increases, possibly indicating melting. See also: News and Views by Mao Enhancement of the chemical stability in confined δ-Bi2O3   pp500 - 504 Simone Sanna, Vincenzo Esposito, Jens Wenzel Andreasen, Johan Hjelm, Wei Zhang, Takeshi Kasama, Søren Bredmose Simonsen, Mogens Christensen, Søren Linderoth and Nini Pryds doi:10.1038/nmat4266 Using highly coherent interfaces of alternating oxide layers a bismuth-oxide-based oxygen ion conductor exhibits unprecedented high chemical stability in reducing conditions and during redox cycles at high temperature. Conducting polymer nanostructures for photocatalysis under visible light   pp505 - 511 Srabanti Ghosh, Natalie A. Kouamé, Laurence Ramos, Samy Remita, Alexandre Dazzi, Ariane Deniset-Besseau, Patricia Beaunier, Fabrice Goubard, Pierre-Henri Aubert and Hynd Remita doi:10.1038/nmat4220 Visible-light-responsive photocatalysts can directly harvest energy from solar light. Stable conducting polymer nanostructures show high photocatalytic activity under visible light without using sacrificial reagents or precious metal co-catalysts. Destruction of chemical warfare agents using metal–organic frameworks   pp512 - 516 Joseph E. Mondloch, Michael J. Katz, William C. Isley III, Pritha Ghosh, Peilin Liao, Wojciech Bury, George W. Wagner, Morgan G. Hall, Jared B. DeCoste, Gregory W. Peterson, Randall Q. Snurr, Christopher J. Cramer, Joseph T. Hupp and Omar K. Farha doi:10.1038/nmat4238 A porous metal–organic framework with ultrawide channels and excellent chemical stability is now shown to be highly efficacious for the catalytic decomposition of chemical warfare agents containing phosphate ester bonds. See also: News and Views by Rosseinsky et al. Articles Top Binding configurations and intramolecular strain in single-molecule devices   pp517 - 522 Habid Rascón-Ramos, Juan Manuel Artés, Yuanhui Li and Joshua Hihath doi:10.1038/nmat4216 A method based on break-junction measurements to obtain information about the binding configuration of single-molecule junctions is reported. This approach also provides insight on how strain distributes along the molecule. See also: News and Views by Nichols & Higgins A photoreversible protein-patterning approach for guiding stem cell fate in three-dimensional gels   pp523 - 531 Cole A. DeForest and David A. Tirrell doi:10.1038/nmat4219 An approach that exploits two bioorthogonal photochemistries to achieve reversible immobilization of full-length proteins in synthetic hydrogels allows for the reversible differentiation of human mesenchymal stem cells to osteoblasts. Biodegradable silicon nanoneedles delivering nucleic acids intracellularly induce localized in vivo neovascularization   pp532 - 539 C. Chiappini, E. De Rosa, J. O. Martinez, X. Liu, J. Steele, M. M. Stevens and E. Tasciotti doi:10.1038/nmat4249 Efficient in vivo cytosolic delivery of nucleic acids through cell-membrane puncturing by an array of biodegradable silicon nanoneedles induces sustained local neovascularization in muscle. See also: News and Views by Prausnitz Corrigendum Top Corrigendum: Origami structures with a critical transition to bistability arising from hidden degrees of freedom   p540 Jesse L. Silverberg, Jun-Hee Na, Arthur A. Evans, Bin Liu, Thomas C. Hull, Christian D. Santangelo, Robert J. Lang, Ryan C. Hayward and Itai Cohen doi:10.1038/nmat4275 Top Advertisement nature.com webcasts Nature Publishing Group presents a custom webcast on: The future of metamaterials and metasurfaces Join speakers Prof. Nader Engheta, University of Pennsylvania, Prof. Nikolay I. Zheludev, University of Southampton & NTU Singapore and Prof. Din Ping Tsai, Academia Sinica.   Wednesday, April 29, 2015, 8AM PDT, 11AM EDT, 4PM BST, 5PM CEST   Register for the webcast and live Q & A session  Sponsored by: FUJIFILM Corporation      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. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/myaccount (You will need to log in to be recognised as a nature.com registrant) For further technical assistance, please contact our registration department For print subscription enquiries, please contact our subscription department For other enquiries, please contact our customer feedback department Nature Publishing Group | 75 Varick Street, 9th Floor | New York | NY 10013-1917 | USA Nature Publishing Group's worldwide offices: London - Paris - Munich - New Delhi - Tokyo - Melbourne San Diego - San Francisco - Washington - New York - Boston Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS. © 2015 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.