Scientific Reports Physics Table of Contents e-alert: 28 October 2014

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28 October 2014      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports               Physical Sciences               Lensfree optofluidic plasmonic sensor for real-time and label-free monitoring of molecular binding events over a wide field-of-view ▶     Ahmet F. Coskun, Arif E. Cetin, Betty C. Galarreta et al.     We demonstrate a high-throughput biosensing device that utilizes microfluidics based plasmonic microarrays incorporated with dual-color on-chip imaging toward real-time and …             Non-monotonic dependence of the friction coefficient on heterogeneous stiffness ▶     F. Giacco, M. Pica Ciamarra, L. Saggese et al.     The complexity of the frictional dynamics at the microscopic scale makes difficult to identify all of its controlling parameters. Indeed, experiments on sheared elastic bodies …             Abiotic synthesis of amino acids and self-crystallization under prebiotic conditions ▶     Liying Jiang, Pawel Dziedzic, Zdenek Spacil et al.     Building on previous research on the origin and homochirality of life, this study focuses on analyses profiling important building blocks of life: the natural amino acids. The …             Phase transitions, mechanical properties and electronic structures of novel boron phases under high-pressure: A first-principles study ▶     Changzeng Fan, Jian Li, Limin Wang     We have explored the mechanical properties, electronic structures and phase transition behaviors of three designed new phases for element boron from ambient condition to …             Universal flux-fluctuation law in small systems ▶     Zi-Gang Huang, Jia-Qi Dong, Liang Huang et al.     The relation between flux and fluctuation is fundamental to complex physical systems that support and transport flows. A recently obtained law predicts monotonous enhancement of …             Polarization selective phase-change nanomodulator ▶     Kannatassen Appavoo, Richard F. Haglund Jr.     Manipulating optical signals below the diffraction limit is crucial for next-generation data-storage and telecommunication technologies. Although controlling the flow of light …             Limit of the electrostatic doping in two-dimensional electron gases of LaXO3(X=Al, Ti)/SrTiO3 ▶     J. Biscaras, S. Hurand, C. Feuillet-Palma et al.     In LaTiO3/SrTiO3 and LaAlO3/SrTiO3 heterostructures, the bending of the SrTiO3 conduction band at the interface forms a quantum well that contains a superconducting …             Unconditionally secure commitment in position-based quantum cryptography ▶     Muhammad Nadeem     A new commitment scheme based on position-verification and non-local quantum correlations is presented here for the first time in literature. The only credential for …             Network Structure and Community Evolution on Twitter: Human Behavior Change in Response to the 2011 Japanese Earthquake and Tsunami ▶     Xin Lu, Christa Brelsford     To investigate the dynamics of social networks and the formation and evolution of online communities in response to extreme events, we collected three datasets from Twitter …             Universality of fixation probabilities in randomly structured populations ▶     Ben Adlam, Martin A. Nowak     The stage of evolution is the population of reproducing individuals. The structure of the population is known to affect the dynamics and outcome of evolutionary processes, but …             Locality and rapidity of the ultra-large elastic deformation of Nb nanowires in a NiTi phase-transforming matrix ▶     Shan Wang, Lishan Cui, Shijie Hao et al.     This study investigated the elastic deformation behaviour of Nb nanowires embedded in a NiTi matrix. The Nb nanowires exhibited an ultra-large elastic deformation, which is found …             Principles and Application of Heterodyne Scanning Tunnelling Spectroscopy ▶     Eiji Matsuyama, Takahiro Kondo, Haruhiro Oigawa et al.     Detection of the extremely weak signals in spectroscopy over an extremely wide frequency region is central to diverse sciences, including materials science, biology, astronomy …             Squeezing Millimeter Waves through a Single, Nanometer-wide, Centimeter-long Slit ▶     Xiaoshu Chen, Hyeong-Ryeol Park, Nathan C. Lindquist et al.     We demonstrate broadband non-resonant squeezing of terahertz (THz) waves through an isolated 2-nm-wide, 2-cm-long slit (aspect ratio of 107), representing a maximum intensity …             Passively mode-locking erbium-doped fiber lasers with 0.3 nm Single-Walled Carbon Nanotubes ▶     Xintong Xu, Jianpang Zhai, Ling Li et al.     We demonstrate a passively mode-locked erbium-doped fiber laser (EDFL) by using the smallest single-walled carbon nanotubes (SWNTs) with a diameter of 0.3 nm as the saturable …             MOFzyme: Intrinsic protease-like activity of Cu-MOF ▶     Bin Li, Daomei Chen, Jiaqiang Wang et al.     The construction of efficient enzyme mimetics for the hydrolysis of peptide bonds in proteins is challenging due to the high stability of peptide bonds and the importance of …             Real-Time Control of Uni-Directional Liquid Spreading on a Half-Cone Nanoshell Array ▶     Bin Ai, Limin Wang, Helmuth Möhwald et al.     Half-cone nanoshell arrays, fabricated by a simple and efficient colloidal lithography method, enable uni-directional liquid spreading on their hydrophilic asymmetric …             Efficient non-doped phosphorescent orange, blue and white organic light-emitting devices ▶     Yongming Yin, Jing Yu, Hongtao Cao et al.     Efficient phosphorescent orange, blue and white organic light-emitting devices (OLEDs) with non-doped emissive layers were successfully fabricated. Conventional blue …             Recognition of Chelerythrine to Human Telomeric DNA and RNA G-quadruplexes ▶     Li-Ping Bai, Masaki Hagihara, Kazuhiko Nakatani et al.     A study on binding of antitumor chelerythrine to human telomeric DNA/RNA G-quadruplexes was performed by using DNA polymerase stop assay, UV-melting, ESI-TOF-MS, UV-Vis …             Image Decoding of Photonic Crystal Beads Array in the Microfluidic Chip for Multiplex Assays ▶     Junjie Yuan, Xiangwei Zhao, Xiaoxia Wang et al.     Along with the miniaturization and intellectualization of biomedical instruments, the increasing demand of health monitoring at anywhere and anytime elevates the need for the …             New Electrospinning Nozzle to Reduce Jet Instability and Its Application to Manufacture of Multi-layered Nanofibers ▶     Byoung-Sun Lee, Seung-Yeol Jeon, Haedong Park et al.     A new nozzle system for the efficient production of multi-layered nanofibers through electrospinning is reported. Developed a decade ago, the commonly used coaxial nozzle system …             Atomic Diffusion within Individual Gold Nanocrystal ▶     Gang Xiong, Jesse N. Clark, Chris Nicklin et al.     Due to their excess surface free energy and structural instabilities, nanoparticles exhibit interesting physical and chemical properties. There has been an ever-growing interest …             Thermal Assisted Oxygen Annealing for High Efficiency Planar CH3NH3PbI3 Perovskite Solar Cells ▶     Zhiwei Ren, Annie Ng, Qian Shen et al.     We report investigations on the influences of post-deposition treatments on the performance of solution-processed methylammonium lead triiodide (CH3NH3PbI3)-based planar solar …             An Orientation Measurement Method Based on Hall-effect Sensors for Permanent Magnet Spherical Actuators with 3D Magnet Array ▶     Liang Yan, Bo Zhu, Zongxia Jiao et al.     An orientation measurement method based on Hall-effect sensors is proposed for permanent magnet (PM) spherical actuators with three-dimensional (3D) magnet array. As there is no …             A thermo-physical analysis of the proton pump vacuolar-ATPase: the constructal approach ▶     Umberto Lucia, Antonio Ponzetto, Thomas S. Deisboeck     Pumping protons across a membrane was a critical step at the origin of life on earth, and it is still performed in all living organisms, including in human cells. Proton pumping …             Penetration of Granular Projectiles into a Water Target ▶     Jorge González-Gutiérrez, J. L. Carrillo-Estrada, J. C. Ruiz-Suárez     The penetration of low-speed projectiles into a water target has been studied in the last several years to understand the physics behind the formation and collapse of cavities. …             Reducing Mg Acceptor Activation-Energy in Al0.83Ga0.17N Disorder Alloy Substituted by Nanoscale (AlN)5/(GaN)1 Superlattice Using MgGa δ-Doping: Mg Local-Structure Effect ▶     Hong-xia Zhong, Jun-jie Shi, Min Zhang et al.     Improving p-type doping efficiency in Al-rich AlGaN alloys is a worldwide problem for the realization of AlGaN-based deep ultraviolet optoelectronic devices. In order to solve …             Strain-induced photoconductivity in thin films of Co doped amorphous carbon ▶     Y. C. Jiang, J. Gao     Traditionally, strain effect was mainly considered in the materials with periodic lattice structure, and was thought to be very weak in amorphous semiconductors. Here, we …             Indium segregation measured in InGaN quantum well layer ▶     Zhen Deng, Yang Jiang, Wenxin Wang et al.     The indium segregation in InGaN well layer is confirmed by a nondestructive combined method of experiment and numerical simulation, which is beyond the traditional method. The …             Ordering Ag nanowire arrays by spontaneous spreading of volatile droplet on solid surface ▶     Han Dai, Ruiqiang Ding, Meicheng Li et al.     Large-area Ag nanowires are ordered by spontaneous spreading of volatile droplet on a wettable solid surface. Compared with other nanowires orientation methods, radial shaped …             Connecting the Particles in the Box - Controlled Fusion of Hexamer Nanocrystal Clusters within an AB6 Binary Nanocrystal Superlattice ▶     Benjamin E. Treml, Binit Lukose, Paulette Clancy et al.     Binary nanocrystal superlattices present unique opportunities to create novel interconnected nanostructures by partial fusion of specific components of the superlattice. Here, we …             Agx@WO3 core-shell nanostructure for LSP enhanced chemical sensors ▶     Lijie Xu, Ming-Li Yin, Shengzhong (Frank) Liu     Exceptional properties of graphene have triggered intensive research on other 2D materials. Surface plasmon is another subject being actively explored for many applications. …             Gold nanospikes based microsensor as a highly accurate mercury emission monitoring system ▶     Ylias M. Sabri, Samuel J. Ippolito, James Tardio et al.     Anthropogenic elemental mercury (Hg0) emission is a serious worldwide environmental problem due to the extreme toxicity of the heavy metal to humans, plants and wildlife. …             Breakdown into nanoscale of graphene oxide: Confined hot spot atomic reduction and fragmentation ▶     Gil Gonçalves, Mercedes Vila, Igor Bdikin et al.     Nano-graphene oxide (nano-GO) is a new class of carbon based materials being proposed for biomedical applications due to its small size, intrinsic optical properties, large …             Biologically inspired flexible quasi-single-mode random laser: An integration of Pieris canidia butterfly wing and semiconductors ▶     Cih-Su Wang, Tsung-Yuan Chang, Tai-Yuan Lin et al.     Quasi-periodic structures of natural biomaterial membranes have great potentials to serve as resonance cavities to generate ecological friendly optoelectronic devices with low …             Modeling how shark and dolphin skin patterns control transitional wall-turbulence vorticity patterns using spatiotemporal phase reset mechanisms ▶     Promode R. Bandyopadhyay, Aren M. Hellum     Many slow-moving biological systems like seashells and zebrafish that do not contend with wall turbulence have somewhat organized pigmentation patterns flush with their outer …             Spatially-resolved mapping of history-dependent coupled electrochemical and electronical behaviors of electroresistive NiO ▶     Issei Sugiyama, Yunseok Kim, Stephen Jesse et al.     Bias-induced oxygen ion dynamics underpins a broad spectrum of electroresistive and memristive phenomena in oxide materials. Although widely studied by device-level and local …             Diameter-Controlled and Surface-Modified Sb2Se3 Nanowires and Their Photodetector Performance ▶     Donghyeuk Choi, Yamujin Jang, JeeHee Lee et al.     Due to its direct and narrow band gap, high chemical stability, and high Seebeck coefficient (1800 μVK−1), antimony selenide (Sb2Se3) has many potential applications, such as in …             Enhanced Electrocatalytic Performance for Oxygen Reduction via Active Interfaces of Layer-By-Layered Titanium Nitride/Titanium Carbonitride Structures ▶     Zhaoyu Jin, Panpan Li, Dan Xiao     Cathode materials always limit the performance of fuel cells while the commercial platinum-based catalysts hardly meet the requirements of low cost, durable and stable. Here a …             Ice crystals growth driving assembly of porous nitrogen-doped graphene for catalyzing oxygen reduction probed by in situ fluorescence electrochemistry ▶     Jiong Wang, Huai-Song Wang, Kang Wang et al.     In recent years, doped carbonaceous materials as alternative catalysts for oxygen reduction reaction (ORR) have received considerable attention due to the low cost and high CO …             Tunable SERS-Tags-Hidden Gold Nanorattles for Theranosis of Cancer Cells with Single Laser Beam ▶     Zhaolong Chen, Dexin Yu, Yu Huang et al.     With the use of gold nanostructures, photothermal therapy (PTT) of cancer has great advantages compared to conventional methods, such as noninvasive targeted destruction and …             Lab-on-a-brain: Implantable micro-optical fluidic devices for neural cell analysis in vivo ▶     Hiroaki Takehara, Akira Nagaoka, Jun Noguchi et al.     The high-resolution imaging of neural cells in vivo has brought about great progress in neuroscience research. Here, we report a novel experimental platform, where the intact …             First retrieval of hourly atmospheric radionuclides just after the Fukushima accident by analyzing filter-tapes of operational air pollution monitoring stations ▶     Haruo Tsuruta, Yasuji Oura, Mitsuru Ebihara et al.     No observed data have been found in the Fukushima Prefecture (FP) for the time-series of atmospheric radionuclides concentrations just after the Fukushima Daiichi Nuclear Power …             A Molecular Fluorescent Probe for Targeted Visualization of Temperature at the Endoplasmic Reticulum ▶     Satoshi Arai, Sung-Chan Lee, Duanting Zhai et al.     The dynamics of cellular heat production and propagation remains elusive at a subcellular level. Here we report the first small molecule fluorescent thermometer selectively …             Shaping complex microwave fields in reverberating media with binary tunable metasurfaces ▶     Nadège Kaina, Matthieu Dupré, Geoffroy Lerosey et al.     In this article we propose to use electronically tunable metasurfaces as spatial microwave modulators. We demonstrate that like spatial light modulators, which have been recently …             Order-disorder phase transitions in the two-dimensional semiconducting transition metal dichalcogenide alloys Mo1−xWxX2 (X=S, Se, and Te) ▶     Li-Yong Gan, Qingyun Zhang, Yu-Jun Zhao et al.     A combination of density functional theory, an empirical model, and Monte Carlo simulations is used to shed light on the evolution of the atomic distribution in the …             Probing Stochastic Nano-Scale Inelastic Events in Stressed Amorphous Metal ▶     Y. Yang, X. L. Fu, S. Wang et al.     One fundamental yet longstanding issue in materials science is how local inelasticity arises within an amorphous structure before yielding occurs. Although many possible …             Wireless powering of e -swimmers ▶     Jérome Roche, Serena Carrara, Julien Sanchez et al.     Miniaturized structures that can move in a controlled way in solution and integrate various functionalities are attracting considerable attention due to the potential …             Localized Opto-Mechanical Control of Protein Adsorption onto Carbon Nanotubes ▶     Dakota O'Dell, Xavier Serey, Pilgyu Kang et al.     Chemical reactions can be described by an energy diagram along a reaction coordinate in which an activation barrier limits the rate at which reactants can be transformed into …             Feasibility of Isotope Harvesting at a Projectile Fragmentation Facility: 67Cu ▶     Tara Mastren, Aranh Pen, Graham F. Peaslee et al.     The work presented here describes a proof-of-principle experiment for the chemical extraction of 67Cu from an aqueous beam stop at the National Superconducting Cyclotron …             Tissue-Informative Mechanism for Wearable Non-invasive Continuous Blood Pressure Monitoring ▶     Sung Hun Woo, Yun Young Choi, Dae Jung Kim et al.     Accurate continuous direct measurement of the blood pressure is currently available thru direct invasive methods via intravascular needles, and is mostly limited to use during …                     • Careers & Jobs           naturejobs.com Science jobs of the week       Postdoctoral Researcher     University of Utah            Research Associate     King's College London            Senior Research Associate     University of East Anglia (UEA)            PhD Programme in Molecular Cell Biology     University College London (UCL)            Postdoctoral Research Scientist in Cancer Genetics and Evolution     Wellcome Trust Centre for Human Genetics            Research Assistant / Postdoc     Stanford University School of Medicine            Postdoctoral fellow     University Hospital of Cologne            PhD Student     University of Oulu, Faculty of Biochemistry and Molecular Medicine            Postdoctoral Researcher     Louisiana State University            Research Fellow     The University of Nottingham          No matter what your career stage, student, postdoc or senior scientist, you will find articles on naturejobs.com to help guide you in your science career. 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