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|  | | 13 November 2012 | | | Featured image: | |  | | | Kobayasi et al. find that changes in laryngeal air flow cause non-linear jumps between echolocation and communication frequency bands in horseshoe bats. | | | | | | | | | Latest Review | View all Reviews | | | | | Hyperlenses and metalenses for far-field super-resolution imaging | | | Dylan Lu and Zhaowei Liu | | | The diffraction limit of light constrains the achievable resolution of conventional optical systems, but metamaterials provide numerous avenues to beat it. Lu and Liu review recent advances in super-resolution imaging with hyperlenses and metalenses, and discuss future directions and hurdles for the field. | | | 13 Nov | Nat Commun 3:1205 doi:10.1038/ncomms2176 (2012) | | | Physical sciences Materials science Optical physics | | | Abstract | Full Text | PDF (1,695 kB) | | | | | | Latest Articles | View all Articles | | | | | Orthogonal switching of a single supramolecular complex | | | Feng Tian, Dezhi Jiao, Frank Biedermann and Oren A. Scherman | | | Orthogonal switching has been achieved in supramolecular systems, in which different responses can be triggered on demand by different stimuli. Tian et al. report host–guest heteroternary complexes with both redox- and light-responsive guests in a single, supramolecular entity. | | | 13 Nov | Nat Commun 3:1207 doi:10.1038/ncomms2198 (2012) | | | Chemical sciences Physical chemistry | | | | Abstract | Full Text | PDF (1,228 kB) |
Supplementary Information |
| Detection and differential diagnosis of colon cancer by a cumulative analysis of promoter methylation | | | Qiong Yang, Ying Dong, Wei Wu, Chunlei Zhu, Hui Chong, Jiangyang Lu, Dehai Yu, Libing Liu, Fengting Lv and Shu Wang | | | Changes in the methylation pattern of gene promoters are hallmarks of certain cancers, such as colon cancer. Here Yang et al. identify and validate a set of genes and measure the cumulative methylation of promoters, which allows them to distinguish between two stages of colon cancer. | | | 13 Nov | Nat Commun 3:1206 doi:10.1038/ncomms2209 (2012) | | | Biological sciences Cancer | | | Genetics Medical research | | Abstract | Full Text | PDF (791 kB) |
Supplementary Information |
| A monomeric red fluorescent protein with low cytotoxicity | | | I.I. Shemiakina, G.V. Ermakova, P.J. Cranfill, M.A. Baird, R.A. Evans, E.A. Souslova, D.B. Staroverov, A.Y. Gorokhovatsky, E.V. Putintseva, T.V. Gorodnicheva, T.V. Chepurnykh, L. Strukova, S. Lukyanov, A.G. Zaraisky, M.W. Davidson, D.M. Chudakov and D. Shcherbo | | | Fluorescent proteins are widely used to image cellular structures. Here, Shemiakina and colleagues develop an enhanced version of a red fluorescent protein that is monomeric and less cytotoxic, thereby improving the quality of images that can be obtained in the red part of the visible spectrum. | | | 13 Nov | Nat Commun 3:1204 doi:10.1038/ncomms2208 (2012) | | | Biological sciences Biochemistry | | | Cell biology | | Abstract | Full Text | PDF (2,605 kB) |
Supplementary Information |
| Virtual metagenome reconstruction from 16S rRNA gene sequences | | | Shujiro Okuda, Yuki Tsuchiya, Chiho Kiriyama, Masumi Itoh and Hisao Morisaki | | | Large-scale sequencing techniques have helped to understand the genetic diversity of little-known microbial communities. These authors demonstrate a cheaper alternative to direct sequencing—the construction of virtual metagenomes using gel electrophoresis and related genome sequences. | | | 13 Nov | Nat Commun 3:1203 doi:10.1038/ncomms2203 (2012) | | | Biological sciences Microbiology | | Abstract | Full Text | PDF (747 kB) |
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| Genome sequences of wild and domestic bactrian camels OPEN | | | The Bactrian Camels Genome Sequencing and Analysis Consortium | | | Camels are essential means of transport in deserts, but we know little about the biology of these extraordinary mammals. This study reports the genome sequences of the wild and domestic bactrian camel, offering a glimpse into the camels' genetic adaptation to harsh environments. | | | 13 Nov | Nat Commun 3:1202 doi:10.1038/ncomms2192 (2012) | | | Biological sciences Evolution | | | Genetics | | Abstract | Full Text | PDF (430 kB) |
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| Tracking lithium transport and electrochemical reactions in nanoparticles | | | Feng Wang, Hui-Chia Yu, Min-Hua Chen, Lijun Wu, Nathalie Pereira, Katsuyo Thornton, Anton Van der Ven, Yimei Zhu, Glenn G. Amatucci and Jason Graetz | | | Developing next generation batteries requires better understanding of the dynamics of electrochemical reactions in working electrodes. Using a transmission electron microscope, Wang et al. develop a means to track the real time flow of lithium atoms in electrodes during the discharge of a functioning electrochemical cell. | | | 13 Nov | Nat Commun 3:1201 doi:10.1038/ncomms2185 (2012) | | | Chemical sciences Physical chemistry | | | | Abstract | Full Text | PDF (2,201 kB) |
Supplementary Information |
| The Hedgehog signalling pathway regulates autophagy OPEN | | | Maria Jimenez-Sanchez, Fiona M. Menzies, Yu-Yun Chang, Nikol Simecek, Thomas P. Neufeld and David C. Rubinsztein | | | Autophagy is a cellular process that controls protein and organelle turnover. Jimenez-Sanchez and colleagues demonstrate in cultured mammalian cells and in fruit fly larvae that autophagy is regulated by Hedgehoc signalling, a pathway that is important for early embryonic development. | | | 13 Nov | Nat Commun 3:1200 doi:10.1038/ncomms2212 (2012) | | | Biological sciences Cell biology Developmental biology | | Abstract | Full Text | PDF (1,821 kB) |
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| Chirality-controlled synthesis of single-wall carbon nanotubes using vapour-phase epitaxy | | | Jia Liu, Chuan Wang, Xiaomin Tu, Bilu Liu, Liang Chen, Ming Zheng and Chongwu Zhou | | | The promising electronic properties of single-wall carbon nanotubes are strongly dependent on their chirality. Here a metal catalyst free, vapour-phase epitaxy-type cloning mechanism is shown to yield high purity metallic and semiconducting nanotubes from purified single-chirality seeds. | | | 13 Nov | Nat Commun 3:1199 doi:10.1038/ncomms2205 (2012) | | | Chemical sciences Nanotechnology | | Abstract | Full Text | PDF (980 kB) |
Supplementary Information |
| Dual-polarity plasmonic metalens for visible light OPEN | | | Xianzhong Chen, Lingling Huang, Holger Mühlenbernd, Guixin Li, Benfeng Bai, Qiaofeng Tan, Guofan Jin, Cheng-Wei Qiu, Shuang Zhang and Thomas Zentgraf | | | The wide range of properties encountered in metamaterials make them promising for numerous optical applications. Chen et al. build a plasmonic flat metamaterial lens with an abrupt phase change that functions as a convex lens for one handedness of light and a concave lens for the other. | | | 13 Nov | Nat Commun 3:1198 doi:10.1038/ncomms2207 (2012) | | | Physical sciences Nanotechnology | | | Optical physics | | | Abstract | Full Text | PDF (1,552 kB) |
| The metastasis-promoting S100A4 protein confers neuroprotection in brain injury | | | Oksana Dmytriyeva, Stanislava Pankratova, Sylwia Owczarek, Katrin Sonn, Vladislav Soroka, Christina M. Ridley, Alexander Marsolais, Marcos Lopez-Hoyos, Noona Ambartsumian, Eugene Lukanidin, Elisabeth Bock, Vladimir Berezin and Darya Kiryushko | | | Multifunctional S100 proteins are upregulated in brain injury, but their role in neurodegeneration is not clear. Dmytriyeva and colleagues study in vivo models of brain trauma and find that the S100A4 protein and its peptide mimetics protect neurons via the interleukin-10 receptor and the Janus kinase (JAK)/STAT pathway. | | | 13 Nov | Nat Commun 3:1197 doi:10.1038/ncomms2202 (2012) | | | Biological sciences Cell biology | | | Neuroscience | | | | Abstract | Full Text | PDF (1,969 kB) |
Supplementary Information |
| Coherent optical wavelength conversion via cavity optomechanics | | | Jeff T. Hill, Amir H. Safavi-Naeini, Jasper Chan and Oskar Painter | | | Coherent conversion of photons from one wavelength to another is promising for future quantum communications technologies. By exploiting coupling between resonances in an optomechanical crystal nanocavity, Hill et al. demonstrate conversion between optical wavelength photons via a mechanical resonance. | | | 13 Nov | Nat Commun 3:1196 doi:10.1038/ncomms2201 (2012) | | | Physical sciences Applied physics | | | Nanotechnology Optical physics | | Abstract | Full Text | PDF (893 kB) |
Supplementary Information |
| Localizing internal friction along the reaction coordinate of protein folding by combining ensemble and single-molecule fluorescence spectroscopy OPEN | | | Alessandro Borgia, Beth G. Wensley, Andrea Soranno, Daniel Nettels, Madeleine B. Borgia, Armin Hoffmann, Shawn H. Pfeil, Everett A. Lipman, Jane Clarke and Benjamin Schuler | | | Internal friction affects the kinetics of protein folding. Borgia et al. investigate how this friction affects the folding dynamics of the protein spectrin, revealing a potential role in the rate-limiting conformational changes. | | | 13 Nov | Nat Commun 3:1195 doi:10.1038/ncomms2204 (2012) | | | Biological sciences Biophysics | | | Chemical biology | | | Physical chemistry | | Abstract | Full Text | PDF (1,895 kB) |
Supplementary Information |
| Direct writing of electronic devices on graphene oxide by catalytic scanning probe lithography OPEN | | | Kun Zhang, Qiang Fu, Nan Pan, Xinxin Yu, Jinyang Liu, Yi Luo, Xiaoping Wang, Jinlong Yang and Jianguo Hou | | | Controlled nanoscale reduction of graphene oxide could aid the development of graphene-based electronics. Here, a relatively mild technique is reported that uses a platinum-coated atomic force microscope tip to catalyse the reduction of graphene oxide to graphene. | | | 13 Nov | Nat Commun 3:1194 doi:10.1038/ncomms2200 (2012) | | | Chemical sciences Nanotechnology | | | Physical chemistry | | Abstract | Full Text | PDF (1,403 kB) |
Supplementary Information |
| Self-luminescing BRET-FRET near-infrared dots for in vivo lymph-node mapping and tumour imaging | | | Liqin Xiong, Adam J. Shuhendler and Jianghong Rao | | | Fluorescence imaging in vivo is hampered by autofluorescence and the scattering and absorption of short-wavelength light. To address these problems, Xiong et al. produce self-luminescing nanoparticles that enable in vivo near-infrared imaging without external light excitation. | | | 13 Nov | Nat Commun 3:1193 doi:10.1038/ncomms2197 (2012) | | | Biological sciences Nanotechnology | | Abstract | Full Text | PDF (2,623 kB) |
Supplementary Information |
| Observation of a topological crystalline insulator phase and topological phase transition in Pb1–x Sn x Te | | | Su-Yang Xu, Chang Liu, N. Alidoust, M. Neupane, D. Qian, I. Belopolski, J.D. Denlinger, Y.J. Wang, H. Lin, L.A. Wray, G. Landolt, B. Slomski, J.H. Dil, A. Marcinkova, E. Morosan, Q. Gibson, R. Sankar, F.C. Chou, R.J. Cava, A. Bansil and M.Z. Hasan | | | In the recently proposed topological crystalline insulators, the topological states result from crystalline symmetries rather than time-reversal symmetry. Xu et al. report the experimental observation of a topological crystalline insulator phase in Pb1-xSnxTe by spin-resolved photoemission spectroscopy. | | | 13 Nov | Nat Commun 3:1192 doi:10.1038/ncomms2191 (2012) | | | Physical sciences Condensed matter | | | Materials science | | Abstract | Full Text | PDF (2,274 kB) |
Supplementary Information |
| Control of exciton spin statistics through spin polarization in organic optoelectronic devices OPEN | | | Jianpu Wang, Alexei Chepelianskii, Feng Gao and Neil C. Greenham | | | Control of spin statistics by spin injection from ferromagnetic electrodes has been shown to achieve only weak effects in organic optoelectronic devices. Wang et al. use instead polarization of spins after injection, at high magnetic fields and low temperatures, achieving a 50% change in device characteristics. | | | 13 Nov | Nat Commun 3:1191 doi:10.1038/ncomms2194 (2012) | | | Physical sciences Applied physics | | | Condensed matter Materials science | | | | Abstract | Full Text | PDF (703 kB) |
Supplementary Information |
| Spectroscopic observation of iodosylarene metalloporphyrin adducts and manganese(V)-oxo porphyrin species in a cytochrome P450 analogue | | | Mian Guo, Hang Dong, Jie Li, Ben Cheng, Yun-qing Huang, Yu-qi Feng and Aiwen Lei | | | Metalloporphyrin compounds are studied as models of cytochrome P450, which is capable of catalysing oxidative reactions. Here, reaction conditions are varied to allow spectroscopic observation of oxidant-metalloporphyrin adducts and metal-oxo intermediates, which may elucidate reaction mechanisms. | | | 13 Nov | Nat Commun 3:1190 doi:10.1038/ncomms2196 (2012) | | | Chemical sciences Chemical biology | | | Inorganic chemistry | | Abstract | Full Text | PDF (598 kB) |
Supplementary Information |
| Surface symmetry-breaking and strain effects on orbital occupancy in transition metal perovskite epitaxial films | | | D. Pesquera, G. Herranz, A. Barla, E. Pellegrin, F. Bondino, E. Magnano, F. Sánchez and J. Fontcuberta | | | The electron occupancy of 3d-orbitals critically determines the properties of transition metal oxides. In this report, surface symmetry breaking is combined with substrate-induced epitaxial strain to tune the occupancy of surface electronic orbitals in ABO3 perovskite epitaxial films. | | | 13 Nov | Nat Commun 3:1189 doi:10.1038/ncomms2189 (2012) | | | Physical sciences Condensed matter | | | Materials science | | Abstract | Full Text | PDF (997 kB) |
Supplementary Information |
| Room temperature self-assembly of mixed nanoparticles into photonic structures | | | Masood Naqshbandi, John Canning, Brant C. Gibson, Melissa M. Nash and Maxwell J. Crossley | | | Integration of different compounds with silica is important for developing small-scale optical devices, yet the high temperatures needed to build silica waveguides impose limits. Here, a room-temperature, self-assembly approach is shown, which produces long microwires containing nanodiamonds or organic dyes. | | | 13 Nov | Nat Commun 3:1188 doi:10.1038/ncomms2182 (2012) | | | Chemical sciences Materials science | | | Optical physics | | Abstract | Full Text | PDF (1,322 kB) |
Supplementary Information |
| An insect-induced novel plant phenotype for sustaining social life in a closed system OPEN | | | Mayako Kutsukake, Xian-Ying Meng, Noboru Katayama, Naruo Nikoh, Harunobu Shibao and Takema Fukatsu | | | Some social aphids have evolved to live inside completely closed galls, which presents a waste disposal problem of the honeydew that collects inside the gall. Here Kutsukake et al. show that the gall inner surface is specialized for absorbing water, removing honeydew via the plant vascular system. | | | 13 Nov | Nat Commun 3:1187 doi:10.1038/ncomms2187 (2012) | | | Biological sciences Ecology | | | Evolution | | Abstract | Full Text | PDF (2,206 kB) |
Supplementary Information |
| Structural modelling and mutant cycle analysis predict pharmacoresponsiveness of a Nav1.7 mutant channel | | | Yang Yang, Sulayman D. Dib-Hajj, Jian Zhang, Yang Zhang, Lynda Tyrrell, Mark Estacion and Stephen G. Waxman | | | Mutations of the NaV1.7 voltage-gated sodium channel are implicated in abnormal pain signal transduction. Yang and colleagues perform structural modeling, mutant cycle analysis and electrophysiology on specific mutants and find that they can accurately predict their response profiles to channel blockers. | | | 13 Nov | Nat Commun 3:1186 doi:10.1038/ncomms2184 (2012) | | | Biological sciences Biophysics | | | Neuroscience | | Abstract | Full Text | PDF (2,822 kB) |
Supplementary Information |
| A peptide derived from laminin-γ3 reversibly impairs spermatogenesis in rats | | | Linlin Su, Dolores D. Mruk, Pearl P.Y. Lie, Bruno Silvestrini and C. Yan Cheng | | | The temporal opening and closing of cell–cell junctions at the blood–testis barrier allows the passage of immature germ cells during spermatogenesis. Su and colleagues identify a peptide fragment of the laminin-γ3 chain that disrupts the blood–testis barrier and reversibly impairs spermatogenesis in rats. | | | 13 Nov | Nat Commun 3:1185 doi:10.1038/ncomms2171 (2012) | | | Biological sciences Cell biology | | | Medical research | | Abstract | Full Text | PDF (5,772 kB) |
Supplementary Information |
| Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats | | | Kohta I. Kobayasi, Steffen R. Hage, Sean Berquist, Jiang Feng, Shuyi Zhang and Walter Metzner | | | Echolocating bats produce a wide variety of calls at different frequencies. In this study, the physiological basis of these frequencies are investigated, revealing that small changes in laryngeal air flow result in jumps between frequencies used for either echolocation or communication. | | | 13 Nov | Nat Commun 3:1184 doi:10.1038/ncomms2165 (2012) | | | Biological sciences Biophysics | | | Neuroscience | | Abstract | Full Text | PDF (3,251 kB) |
Supplementary Information |
| Determination of monolayer-protected gold nanoparticle ligand–shell morphology using NMR OPEN | | | Xiang Liu, Miao Yu, Hyewon Kim, Marta Mameli and Francesco Stellacci | | | Binary mixtures of molecules on the surface of nanoparticles can arrange randomly or into different domains to form Janus, patchy or striped particles. Liu et al. show that NMR can be used to determine the ligand-shell morphology of particles coated with aliphatic and aromatic ligands. | | | 13 Nov | Nat Commun 3:1182 doi:10.1038/ncomms2155 (2012) | | | Chemical sciences Nanotechnology Physical chemistry | | Abstract | Full Text | PDF (985 kB) |
Supplementary Information |
| Symmetry breaking and optical negative index of closed nanorings | | | Boubacar Kanté, Yong-Shik Park, Kevin O'Brien, Daniel Shuldman, Norberto D. Lanzillotti-Kimura, Zi Jing Wong, Xiaobo Yin and Xiang Zhang | | | Metamaterials using split-ring resonators can display negative refractive index, yet the same effect for closed rings has remained elusive. Kanté et al. overcome this by using closely spaced coupled nanorings that exploit symmetry breaking to show broadband negative refractive index at optical frequencies. | | | 13 Nov | Nat Commun 3:1180 doi:10.1038/ncomms2161 (2012) | | | Physical sciences Materials science | | | Nanotechnology Optical physics | | Abstract | Full Text | PDF (1,756 kB) |
Supplementary Information |
| Chimpanzees and humans harbour compositionally similar gut enterotypes | | | Andrew H. Moeller, Patrick H. Degnan, Anne E. Pusey, Michael L. Wilson, Beatrice H. Hahn and Howard Ochman | | | Humans tend to adopt one of a limited number of different bacterial community structures in the gut, known as enterotypes. Moeller et al. now show that these microbial fingerprints are conserved in chimpanzees, and that individuals can switch between enterotypes over periods of several years. | | | 13 Nov | Nat Commun 3:1179 doi:10.1038/ncomms2159 (2012) | | | Biological sciences Evolution | | | Genetics Microbiology | | Abstract | Full Text | PDF (246 kB) |
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