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|  | | 02 October 2012 | | | Featured image: | |  | | | Fujita et al. develop a molecular host that can encapsulate the protein ubiquitin. |
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| | | | | | Latest Articles | View all Articles | | | | | Monosynaptic inputs to new neurons in the dentate gyrus | | | Carmen Vivar, Michelle C. Potter, Jiwon Choi, Ji-young Lee, Thomas P. Stringer, Edward M. Callaway, Fred H. Gage, Hoonkyo Suh and Henriette van Praag | | | Adult neurogenesis in the mammalian brain is implicated in the storage and processing of memories. Vivar et al. label afferents to new dentate gyrus granule cells and find that they receive direct input from the perirhinal and lateral entorhinal cortex and that these inputs enable spatial pattern separation. | | | 02 Oct | Nat Commun 3:1107 doi:10.1038/ncomms2101 (2012) | | | Biological sciences Neuroscience | | Abstract | Full Text | PDF (2,942 kB) |
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| Cobweb-weaving spiders produce different attachment discs for locomotion and prey capture | | | Vasav Sahni, Jared Harris, Todd A. Blackledge and Ali Dhinojwala | | | Spider webs consist of scaffolding silk, which supports the cobweb, and gumfoot silk, which can detach easily from the web upon contact with prey. Here, these different mechanical demands are shown to be met by silk attachments of two distinct architectures using the same pyriform silk secretions. | | | 02 Oct | Nat Commun 3:1106 doi:10.1038/ncomms2099 (2012) | | | Biological sciences Biophysics | | | Materials science | | Abstract | Full Text | PDF (997 kB) |
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| Food web expansion and contraction in response to changing environmental conditions | | | Tyler D. Tunney, Kevin S. McCann, Nigel P. Lester and Brian J. Shuter | | | The analysis of food web properties under different environmental conditions informs us how the ecosystem functions. Here, Tunney et al. use post-glacial lakes as model ecosystems to show how macroscopic patterns of food webs vary with changes in habitat and resource accessibility. | | | 02 Oct | Nat Commun 3:1105 doi:10.1038/ncomms2098 (2012) | | | Biological sciences Ecology | | | | Abstract | Full Text | PDF (573 kB) |
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| Arrays of giant octagonal and square cylinders by liquid crystalline self-assembly of X-shaped polyphilic molecules | | | Feng Liu, Robert Kieffer, Xiangbing Zeng, Karsten Pelz, Marko Prehm, Goran Ungar and Carsten Tschierske | | | T- and X-shaped polyphilic liquid crystals can generate ordered structures with potential nanotechnology applications. Here, the inability of polyphiles to achieve optimal packing and complete nanophase separation is exploited to produce a flexible two-dimensional honeycomb with giant octagonal and square cylinders. | | | 02 Oct | Nat Commun 3:1104 doi:10.1038/ncomms2096 (2012) | | | Chemical sciences Materials science | | | | Abstract | Full Text | PDF (896 kB) |
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| Magnesium-free self-assembly of multi-layer DNA objects OPEN | | | Thomas G. Martin and Hendrik Dietz | | | Self-assembly of DNA can provide access to a range of nanoscale structures, but assembly using magnesium has been considered essential. Martin and Dietz report conditions that allow the assembly of templated, multi-layer DNA structures in the presence of monovalent ions, rather than magnesium. | | | 02 Oct | Nat Commun 3:1103 doi:10.1038/ncomms2095 (2012) | | | Chemical sciences Nanotechnology | | Abstract | Full Text | PDF (721 kB) |
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| Structure of a bacterial voltage-gated sodium channel pore reveals mechanisms of opening and closing OPEN | | | Emily C. McCusker, Claire Bagnéris, Claire E. Naylor, Ambrose R. Cole, Nazzareno D'Avanzo, Colin G. Nichols and B.A. Wallace | | | Sodium-gated ion channels open and close in response to the flow of ions. Here, McCusker et al. report the open structure of a sodium-gated ion channel pore from a bacterial homologue, and show, by comparison with the closed structure, that the movement of a C-terminal helix is sufficient to open the channel. | | | 02 Oct | Nat Commun 3:1102 doi:10.1038/ncomms2077 (2012) | | | Biological sciences Biophysics | | | | Abstract | Full Text | PDF (1,518 kB) |
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| Highly transparent nonvolatile resistive memory devices from silicon oxide and graphene | | | Jun Yao, Jian Lin, Yanhua Dai, Gedeng Ruan, Zheng Yan, Lei Li, Lin Zhong, Douglas Natelson and James M. Tour | | | Flexible electronic devices are widely considered to have significant potential for a range of applications. Here the authors present a bendable and transparent memory based on graphene electrical contacts and silica as the memory element. | | | 02 Oct | Nat Commun 3:1101 doi:10.1038/ncomms2110 (2012) | | | Physical sciences Materials science Nanotechnology | | Abstract | Full Text | PDF (1,078 kB) |
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| Ultrafast optical demagnetization manipulates nanoscale spin structure in domain walls OPEN | | | B. Pfau, S. Schaffert, L. Müller, C. Gutt, A. Al-Shemmary, F. Büttner, R. Delaunay, S. Düsterer, S. Flewett, R. Frömter, J. Geilhufe, E. Guehrs, C.M. Günther, R. Hawaldar, M. Hille, N. Jaouen, A. Kobs, K. Li, J. Mohanty, H. Redlin, W.F. Schlotter, D. Stickler, R. Treusch, B. Vodungbo, M. Kläui, H.P. Oepen, J. Lüning, G. Grübel and S. Eisebitt | | | Ultrafast demagnetization occurs when magnetically ordered solids are exposed to femtosecond light pulses, yet the exact spin-transfer mechanism is still debated. Combining ultrashort X-rays and infrared laser pulses, Pfau et al. show the importance of spin transport between domains in thin magnetic films. | | | 02 Oct | Nat Commun 3:1100 doi:10.1038/ncomms2108 (2012) | | | Physical sciences Condensed matter | | | Optical physics | | Abstract | Full Text | PDF (611 kB) |
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| Cadherin selectivity filter regulates endothelial sieving properties | | | Sadiqa K. Quadri, Li Sun, Mohammad Naimul Islam, Lawrence Shapiro and Jahar Bhattacharya | | | Endothelial cells provide a vital barrier system to the passage of water and ions but not large plasma proteins. Using fluorescently labelled dextrans, the authors show that regions of high or low adherens junction density differentially restrict the passage of molecules up to 70 kDa in size. | | | 02 Oct | Nat Commun 3:1099 doi:10.1038/ncomms2107 (2012) | | | Biological sciences Cell biology | | | | Abstract | Full Text | PDF (1,705 kB) |
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| Mst1 regulates integrin-dependent thymocyte trafficking and antigen recognition in the thymus | | | Yoshihiro Ueda, Koko Katagiri, Takashi Tomiyama, Kaneki Yasuda, Katsuyoshi Habiro, Tomoya Katakai, Susumu Ikehara, Mitsuru Matsumoto and Tatsuo Kinashi | | | Autoreactive T cells are eliminated as they encounter self-antigens during transit through the thymus. Ueda et al. reveal that mice lacking the Hippo homologue Mst1 develop autoimmunity as a result of impaired integrin-dependent T cell migration through this negatively selective niche. | | | 02 Oct | Nat Commun 3:1098 doi:10.1038/ncomms2105 (2012) | | | Biological sciences Immunology | | Abstract | Full Text | PDF (3,028 kB) |
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| Linear magnetoresistance due to multiple-electron scattering by low-mobility islands in an inhomogeneous conductor OPEN | | | N.V. Kozlova, N. Mori, O. Makarovsky, L. Eaves, Q.D. Zhuang, A. Krier and A. Patanè | | | Linear magnetoresistance is a phenomenon observed in many material systems and could be used in magnetic field sensors. This paper uncovers its microscopic origin showing how it arises from multiple scattering of electrons by low-mobility islands within an inhomogeneous high-mobility semiconductor. | | | 02 Oct | Nat Commun 3:1097 doi:10.1038/ncomms2106 (2012) | | | Physical sciences Applied physics | | | Condensed matter Materials science | | | Abstract | Full Text | PDF (1,863 kB) |
| Top-down fabricated silicon nanowires under tensile elastic strain up to 4.5% | | | R.A. Minamisawa, M.J. Süess, R. Spolenak, J. Faist, C. David, J. Gobrecht, K.K. Bourdelle and H. Sigg | | | Strain in Si nanostructures is used to achieve higher carrier mobility, making these devices candidates for the next generation of transistors. Minamisawa et al. fabricate silicon nanowires subject to elastic tensile strain up to 4.5%, exceeding the limit achievable with the use of SiGe virtual substrates. | | | 02 Oct | Nat Commun 3:1096 doi:10.1038/ncomms2102 (2012) | | | Physical sciences Materials science Nanotechnology | | Abstract | Full Text | PDF (597 kB) |
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| Robust photoregulation of GABAA receptors by allosteric modulation with a propofol analogue | | | Lan Yue, Michal Pawlowski, Shlomo S. Dellal, An Xie, Feng Feng, Thomas S. Otis, Karol S. Bruzik, Haohua Qian and David R. Pepperberg | | | The design of chemical photoswitches could potentially lead to the development of novel therapeutics that regulates neurotransmission. In this study, a light-sensitive modified derivative of propofol is shown to activate GABAA receptors in Xenopus oocytes, rat ganglion cells and mouse cerebellar slices. | | | 02 Oct | Nat Commun 3:1095 doi:10.1038/ncomms2094 (2012) | | | Biological sciences Chemical biology | | | | Abstract | Full Text | PDF (1,147 kB) |
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| Sound-induced length changes in outer hair cell stereocilia | | | Pierre Hakizimana, William E. Brownell, Stefan Jacob and Anders Fridberger | | | In the inner ear, sound waves produce movements in hair cell sterocilia, triggering the opening of ion channels. Hakizimana and colleagues show that the resultant currents change the length of sterocilia, and that these length changes alter the efficiency by which sound is converted into electrical signals. | | | 02 Oct | Nat Commun 3:1094 doi:10.1038/ncomms2100 (2012) | | | Biological sciences Biophysics | | | Neuroscience | | Abstract | Full Text | PDF (910 kB) |
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| Protein encapsulation within synthetic molecular hosts | | | Daishi Fujita, Kosuke Suzuki, Sota Sato, Maho Yagi-Utsumi, Yoshiki Yamaguchi, Nobuhiro Mizuno, Takashi Kumasaka, Masaki Takata, Masanori Noda, Susumu Uchiyama, Koichi Kato and Makoto Fujita | | | Protein encapsulation in molecular cages has the potential to alter protein function and aid crystallization. Here, ubiquitin is encapsulated within a giant coordination cage; the protein is attached to a bidentate ligand, and the cage self-assembles upon addition of capping ligands and Pd(II) ions. | | | 02 Oct | Nat Commun 3:1093 doi:10.1038/ncomms2093 (2012) | | | Chemical sciences Inorganic chemistry | | | | Abstract | Full Text | PDF (1,031 kB) |
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| Quantum correlations with no causal order OPEN | | | Ognyan Oreshkov, Fabio Costa and Časlav Brukner | | | Causal order is a concept that is engrained in the standard understanding of time, both in classical and quantum mechanics. Oreshkov et al. generalize the standard formalism of quantum theory to a framework with no pre-existing causal order, and find a new class of correlations that have no analogue in the classical world. | | | 02 Oct | Nat Commun 3:1092 doi:10.1038/ncomms2076 (2012) | | | Physical sciences Theoretical physics | | | | Abstract | Full Text | PDF (723 kB) |
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| Multichannel cavity optomechanics for all-optical amplification of radio frequency signals | | | Huan Li, Yu Chen, Jong Noh, Semere Tadesse and Mo Li | | | Cavity optomechanics can exploit optical forces to achieve all-optical signal processing, but most schemes are limited to a narrow wavelength range. Using a cavity optomechanical design system with two optical channels, Li et al. show broadband readout and all-optical amplification of radio-frequency signals. | | | 02 Oct | Nat Commun 3:1091 doi:10.1038/ncomms2103 (2012) | | | Physical sciences Nanotechnology | | | Optical physics | | Abstract | Full Text | PDF (639 kB) |
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