Scientific Reports Chemistry Table of Contents e-alert: 23 February 2016

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23 February 2016      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports       Chemical Sciences               Ultraviolet-visible study on acid-base equilibria of aporphine alkaloids with antiplasmodial and antioxidant activities from Alseodaphne corneri and Dehaasia longipedicellata ▶     Azeana Zahari, Abdulwali Ablat, Noridayu Omer et al.     The UV-vis spectra of isocorydine 1, norisocorydine 2 and boldine 3 were studied in 2% v/v acetonitrile, at constant ionic strength (0.1 M NaCl, 35 degree Celsius). The pKa …             Substituent Effects on the Photodeprotection Reactions of Selected Ketoprofen Derivatives in Phosphate Buffered Aqueous Solutions ▶     Mingyue Liu, Ming-De Li, Jinqing Huang et al.     Photodeprotection is an important reaction that has been attracting broad interest for use in a variety of applications. Recent advances in ultrafast and vibrational …             High rate lithium-sulfur battery enabled by sandwiched single ion conducting polymer electrolyte ▶     Yubao Sun, Gai Li, Yuanchu Lai et al.     Lithium-sulfur batteries are highly promising for electric energy storage with high energy density, abundant resources and low cost. However, the battery technologies have often …             A pilot-scale forward osmosis membrane system for concentrating low-strength municipal wastewater: performance and implications ▶     Zhiwei Wang, Junjian Zheng, Jixu Tang et al.     Recovery of nutrients and energy from municipal wastewater has attracted much attention in recent years; however, its efficiency is significantly limited by the low-strength …             EGCG in Green Tea Induces Aggregation of HMGB1 Protein through Large Conformational Changes with Polarized Charge Redistribution ▶     Xuan-Yu Meng, Baoyu Li, Shengtang Liu et al.     As a major effective component in green tea, (−)-epigallocatechin-3-gallate (EGCG)’s potential benefits to human health have been widely investigated. Recent experimental …             Growth and Deposition of Au Nanoclusters on Polymer-wrapped Graphene and Their Oxygen Reduction Activity ▶     Tsuyohiko Fujigaya, ChaeRin Kim, Yuki Hamasaki et al.     The development of a non-Pt electrocatalyst with a high performance for the oxygen reduction reaction (ORR) is one of the central issues in polymer electrolyte fuel cells …             Graphene oxide-assisted non-immobilized SELEX of okdaic acid aptamer and the analytical application of aptasensor ▶     Huajie Gu, Nuo Duan, Shijia Wu et al.     Okadaic acid (OA) is a low-molecular-weight marine toxin from shellfish that causes abdominal pain, vomiting and diarrhea, i.e., diarrheic shellfish poisoning. In this study, a …             Tuning Liposome Membrane Permeability by Competitive Peptide Dimerization and Partitioning-Folding Interactions Regulated by Proteolytic Activity ▶     Seng Koon Lim, Camilla Sandén, Robert Selegård et al.     Membrane active peptides are of large interest for development of drug delivery vehicles and therapeutics for treatment of multiple drug resistant infections. Lack of specificity …             Evidence for photo-induced charge separation between dye molecules adsorbed to aluminium oxide surfaces ▶     Ute B. Cappel, Davide Moia, Annalisa Bruno et al.     Excited state dynamics and photo-induced charge transfer of dye molecules have been widely studied due to their relevance for organic and dye-sensitised solar cells. Herein, we …             Chemical Partition of the Radiative Decay Rate of Luminescence of Europium Complexes ▶     Nathalia B. D. Lima, José Diogo L. Dutra, Simone M. C. Gonçalves et al.     The spontaneous emission coefficient, Arad, a global molecular property, is one of the most important quantities related to the luminescence of complexes of lanthanide ions. In …             Dynamic nuclear polarization-magnetic resonance imaging at low ESR irradiation frequency for ascorbyl free radicals ▶     Shinji Ito, Fuminori Hyodo     Highly water-soluble ubiquinone-0 (CoQ0) reacts with ascorbate monoanion (Asc) to mediate the production of ascorbyl free radicals (AFR). Using aqueous reaction mixture of CoQ0 …             The nature of hydrogen-bonding interaction in the prototypic hybrid halide perovskite, tetragonal CH3NH3PbI3 ▶     June Ho Lee, Jung-Hoon Lee, Eui-Hyun Kong et al.     In spite of the key role of hydrogen bonding in the structural stabilization of the prototypic hybrid halide perovskite, CH3NH3PbI3 (MAPbI3), little progress has been made in our …             High-internal-phase emulsions stabilized by metal-organic frameworks and derivation of ultralight metal-organic aerogels ▶     Bingxing Zhang, Jianling Zhang, Chengcheng Liu et al.     To design high-internal-phase emulsion (HIPE) systems is of great interest from the viewpoints of both fundamental researches and practical applications. Here we demonstrate for …             Graphene Facilitated Removal of Labetalol in Laccase-ABTS System: Reaction Efficiency, Pathways and Mechanism ▶     Shipeng Dong, Huifang Xiao, Qingguo Huang et al.     The widespread occurrence of the beta-blocker labetalol causes environmental health concern. Enzymatic reactions are highly efficient and specific offering biochemical …             Construction of pH-responsive and up-conversion luminescent NaYF4:Yb3+/Er3+@SiO2@PMAA nanocomposite for colon targeted drug delivery ▶     Boshi Tian, Shaohua Liu, Wei Lu et al.     Colon-targeted drug delivery system has attracted much interest because it can improve therapeutic efficacy and reduce the side effect in practical clinic. Herein, we constructed …             Spatially resolved TiOx phases in switched RRAM devices using soft X-ray spectromicroscopy ▶     D. Carta, A. P. Hitchcock, P. Guttmann et al.     Reduction in metal-oxide thin films has been suggested as the key mechanism responsible for forming conductive phases within solid-state memory devices, enabling their resistive …             A Microstructured Fiber with Defined Borosilicate Regions to Produce a Radial Micronozzle Array for Nanoelectrospray Ionization ▶     Y. Fu, S. Morency, K. Bachus et al.     This work highlights the possibility of using microstructured fibres with predefined doped regions to produce functional microstructures at a fibre facet with differential …             Synthesis and transistor application of the extremely extended phenacene molecule, [9]phenacene ▶     Yuma Shimo, Takahiro Mikami, Shino Hamao et al.     Many chemists have attempted syntheses of extended π-electron network molecules because of the widespread interest in the chemistry, physics and materials science of such …             Non-blinking single-photon emitters in silica ▶     Freddy T. Rabouw, Nicole M. B. Cogan, Anne C. Berends et al.     Samples for single-emitter spectroscopy are usually prepared by spin-coating a dilute solution of emitters on a microscope cover slip of silicate based glass (such as quartz). …             Mechanism of Inhibition of Human Islet Amyloid Polypeptide-Induced Membrane Damage by a Small Organic Fluorogen ▶     Xiaoxu Li, Mingwei Wan, Lianghui Gao et al.     Human islet amyloid polypeptide (hIAPP) is believed to be responsible for the death of insulin-producing β-cells. However, the mechanism of membrane damage at the molecular level …             Hydrate-based heavy metal separation from aqueous solution ▶     Yongchen Song, Hongsheng Dong, Lei Yang et al.     A novel hydrate-based method is proposed for separating heavy metal ions from aqueous solution. We report the first batch of experiments and removal characteristics in this …             Investigation of allosteric modulation mechanism of metabotropic glutamate receptor 1 by molecular dynamics simulations, free energy and weak interaction analysis ▶     Qifeng Bai, Xiaojun Yao     Metabotropic glutamate receptor 1 (mGlu1), which belongs to class C G protein-coupled receptors (GPCRs), can be coupled with G protein to transfer extracellular signal by …             R6G molecule induced modulation of the optical properties of reduced graphene oxide nanosheets for use in ultrasensitive SPR sensing ▶     Tianyu Xue, Shansheng Yu, Xiaoming Zhang et al.     A proper understanding of the role that molecular doping plays is essential to research on the modulation of the optical and electronic properties of graphene. The adsorption of …             Sulphur Kβ emission spectra reveal protonation states of aqueous sulfuric acid ▶     Johannes Niskanen, Christoph J. Sahle, Kari O. Ruotsalainen et al.     In this paper we report an X-ray emission study of bulk aqueous sulfuric acid. Throughout the range of molarities from 1 M to 18 M the sulfur Kβ emission spectra from H2SO4 (aq) …             An Atomistic-Scale Study for Thermal Conductivity and Thermochemical Compatibility in (DyY)Zr2O7 Combining an Experimental Approach with Theoretical Calculation ▶     Liu Qu, Kwang-Leong Choy, Richard Wheatley     Ceramic oxides that have high-temperature capabilities can be deposited on the superalloy components in aero engines and diesel engines to advance engine efficiency and reduce …             Determination of thiol metabolites in human urine by stable isotope labeling in combination with pseudo-targeted mass spectrometry analysis ▶     Ping Liu, Chu-Bo Qi, Quan-Fei Zhu et al.     Precursor ion scan and multiple reaction monitoring scan (MRM) are two typical scan modes in mass spectrometry analysis. Here, we developed a strategy by combining stable isotope …             Controlled Immobilization Strategies to Probe Short Hyaluronan-Protein Interactions ▶     Burcu Baykal Minsky, Christiane H. Antoni, Heike Boehm     Well-controlled grafting of small hyaluronan oligosaccharides (sHA) enables novel approaches to investigate biological processes such as angiogenesis, immune reactions and cancer …             Reduced Graphene Oxide Thin Film on Conductive Substrates by Bipolar Electrochemistry ▶     Allagui Anis, Ali Abdelkareem Mohammad, Alawadhi Hussain et al.     Recent years have shown an increased interest in developing manufacturing processes for graphene and its derivatives that consider the environmental impact and large scale …             Ion-shaping of embedded gold hollow nanoshells into vertically aligned prolate morphologies ▶     Pierre-Eugéne Coulon, Julia Amici, Marie-Claude Clochard et al.     Ion beam shaping is a novel technique with which one can shape nano-structures that are embedded in a matrix, while simultaneously imposing their orientation in space. In this …             ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation ▶     Shan Zhong, Qian Wang, Dapeng Cao     Currently, finding high capacity adsorbents with large selectivity to capture Xe is still a great challenge. In this work, nitrogen-doped porous carbons were prepared by …             A new ether-based electrolyte for dendrite-free lithium-metal based rechargeable batteries ▶     Rongrong Miao, Jun Yang, Zhixin Xu et al.     A new ether-based electrolyte to match lithium metal electrode is prepared by introducing 1, 4-dioxane as co-solvent into lithium bis(fluorosulfonyl)imide/1,2-dimethoxyethane …             Hierarchically structured activated carbon for ultracapacitors ▶     Mok-Hwa Kim, Kwang-Bum Kim, Sun-Min Park et al.     To resolve the pore-associated bottleneck problem observed in the electrode materials used for ultracapacitors, which inhibits the transport of the electrolyte ions, we designed …             Holey graphene frameworks for highly selective post-combustion carbon capture ▶     Shamik Chowdhury, Rajasekhar Balasubramanian     Atmospheric CO2 concentrations continue to rise rapidly in response to increased combustion of fossil fuels, contributing to global climate change. In order to mitigate the …             Facile synthesis of flexible macroporous polypropylene sponges for separation of oil and water ▶     Guowei Wang, Hiroshi Uyama     Oil spill disasters always occur accidentally, accompanied by the release of plenty of crude oil that could spread quickly over a wide area, creating enormous damage to the …             A perfectly stoichiometric and flat CeO2(111) surface on a bulk-like ceria film ▶     C. Barth, C. Laffon, R. Olbrich et al.     In surface science and model catalysis, cerium oxide (ceria) is mostly grown as an ultra-thin film on a metal substrate in the ultra-high vacuum to understand fundamental …             Nanoarchitectured Nb2O5 hollow, Nb2O5@carbon and NbO2@carbon Core-Shell Microspheres for Ultrahigh-Rate Intercalation Pseudocapacitors ▶     Lingping Kong, Chuanfang Zhang, Jitong Wang et al.     Li-ion intercalation materials with extremely high rate capability will blur the distinction between batteries and supercapacitors. We construct a series of nanoarchitectured …             Regulatory role of hexosamine biosynthetic pathway on hepatic cancer stem cell marker CD133 under low glucose conditions ▶     Shu-Hai Lin, Tengfei Liu, Xiaoyan Ming et al.     Cancer was hypothesized to be driven by cancer stem cells (CSCs), but the metabolic determinants of CSC-like phenotype still remain elusive. Here, we present that hexosamine …             Enhancing the energy density of safer Li-ion batteries by combining high-voltage lithium cobalt fluorophosphate cathodes and nanostructured titania anodes ▶     Gregorio F. Ortiz, María C. López, Yixiao Li et al.     Recently, Li-ion batteries have been heavily scrutinized because of the apparent incompatibility between safety and high energy density. This work report a high voltage full …             An ultrasensitive label-free electrochemical immunosensor based on signal amplification strategy of multifunctional magnetic graphene loaded with cadmium ions ▶     Faying Li, Yueyun Li, Yunhui Dong et al.     Herein, a novel and ultrasensitive label-free electrochemical immunosensor was proposed for quantitative detection of human Immunoglobulin G (IgG). The amino functionalized …             Conformational Flexibility of a Short Loop near the Active Site of the SARS-3CLpro is Essential to Maintain Catalytic Activity ▶     Chunmei Li, Xin Teng, Yifei Qi et al.     The SARS 3C-like proteinase (SARS-3CLpro), which is the main proteinase of the SARS coronavirus, is essential to the virus life cycle. 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