bluuebunny/crossref_metadata_2025 huggingface dataset:
A polydopamine layer as the nucleation center of MOF deposition on “inert” polymer surfaces to fabricate hierarchically structured porous films
Authors: Zhou Meimei , Li Jian , Zhang Meng , Wang Hui , Lan Yue , Wu Yi-nan , Li Fengting , Li Guangtao
Published: January 2015

Polydopamine could be used as an effective nucleation center for MOF deposition on “inert” polymer membranes, affording hierarchically structured porous films.
A solution-phase approach to Cd3P2nanowires: synthesis and characterization
Authors: Yang Chi , Pan Huanhuan , Liu Sheng , Miao Shu , Zhang Wen-Hua , Jie Jiansheng , Xu Xin
Published: January 2015

Single-crystalline Cd3P2nanowires (NWs) have been synthesizedviaa solution–liquid–solid (SLS) mechanism.
Jalpaite Ag3CuS2: a novel promising ternary sulfide absorber material for solar cells
Authors: Liu Zhifeng , Han Jianhua , Guo Keying , Zhang Xueqi , Hong Tiantian
Published: January 2015

A novel promising Ag3CuS2 absorber material for tertiary generation solar cells.
pH-controlled polymorphism in a layered dysprosium phosphonate and its impact on the magnetization relaxation
Authors: Zeng Dai , Ren Min , Bao Song-Song , Feng Jian-Shen , Li Li , Zheng Li-Min
Published: January 2015

This communication reports two polymorphic dysprosium compounds that exhibit slow relaxation of magnetization with significantly different energy barriers.
Magnetic C–C@Fe3O4 double-shelled hollow microspheres via aerosol-based Fe3O4@C-SiO2 core–shell particles
Authors: Zhu Yangzhi , Li Xiangcun , He Gaohong , Qi Xinhong
Published: January 2015

Fe3O4@C-SiO2 core–shell hollow particles and their transformation to C–C@Fe3O4 double-shelled magnetic microspheres.
A magnetically highly frustrated CuII27 coordination cluster containing a Cu18 folded-sheet motif
Authors: Kühne Irina A. , Kostakis George E. , Anson Christopher E. , Powell Annie K.
Published: January 2015

In this work we report the synthesis, a topological description and magnetic properties of a high-nuclearity homometallic CuII coordination cluster which contains a Cu18 folded-sheet motif capped by an additional Cu9 unit which can be viewed as a “chicken in a basket” motif.
Chiral recognition of l-tryptophan with beta-cyclodextrin-modified biomimetic single nanochannel
Authors: Xie Ganhua , Tian Wei , Wen Liping , Xiao Kai , Zhang Zhen , Liu Qian , Hou Guanglei , Li Pei , Tian Ye , Jiang Lei
Published: January 2015

We realized the chiral recognition of an essential amino acid with a biomimetic nanochannel system for the first time.
Construction of a supported Ru complex on bifunctional MOF-253 for photocatalytic CO2 reduction under visible light
Authors: Sun Dengrong , Gao Yanhong , Fu Jinlong , Zeng Xianchong , Chen Zhongning , Li Zhaohui
Published: January 2015

A MOF-253 supported active Ru carbonyl complex (MOF-253–Ru(CO)2Cl2) was constructed for photocatalytic CO2 reduction under visible light irradiation. The photocatalytic performance can be further improved by immobilization of Ru(bpy)2Cl2 as a photosensitizer.
Enzyme-based logic systems interfaced with signal-responsive materials and electrodes
Authors: Katz Evgeny , Minko Sergiy
Published: January 2015

Enzyme-based biocomputing systems were interfaced with signal-responsive membranes and electrodes resulting in bioelectronic devices switchable by logically processed biomolecular signals.
Benchmark thermochemistry of chloramines, bromamines, and bromochloramines: halogen oxidants stabilized by electron correlation
Authors: Trogolo Daniela , Arey J. Samuel
Published: January 2015

The free energy of the formation of NH2Br at 298 K can be estimated by taking into account the total atomization energy of NH2Br and the atomic and molecular contributions to the enthalpy and the entropy of formation of NH2Br at 0 K and 298 K.
Storage, transport, release: heme versatility in nitrite reductase electron transfer studied by molecular dynamics simulations
Authors: Bauß Anna , Koslowski Thorsten
Published: January 2015

Using molecular dynamics simulations of the thermodynamic integration type, we study the energetics and kinetics of electron transfer through the nitrite reductase enzyme of Sulfurospirillum deleyianum, Wolinella succinogenes and Campylobacter jejuni.
Interaction of collagen like peptides with gold nanosurfaces: a molecular dynamics investigation
Authors: Gopalakrishnan R. , Azhagiya Singam E. R. , Vijaya Sundar J. , Subramanian V.
Published: January 2015

In this study, an attempt has been made to understand the interaction between collagen like peptides (CPs) with a gold nanosurface (AuNS) using a classical molecular dynamics simulation.
Order in the chaos: the secret of the large negative entropy of dissolving 1-alkyl-3-methylimidazolium chloride in trihexyltetradecylphosphonium chloride
Authors: Zahn Stefan , Stark Annegret
Published: January 2015

A large symmetric ion cluster cage is formed if 1-alkyl-3-methylimidazolium chloride ionic liquids with short alkyl chains are added to trihexyltetradecylphosphonium chloride which results in a large negative entropy of dissolution and an unexpected ion dynamics.
The molecular interfacial structure and plasticizer migration behavior of “green” plasticized poly(vinyl chloride)
Authors: Zhang Xiaoxian , Li Yaoxin , Hankett Jeanne M. , Chen Zhan
Published: January 2015

Both oxygen and argon plasma treatment made TBAC–PVC surfaces hydrophilic, but that of argon enhanced the migration of TBAC to water.
Physical properties of high Li-ion content N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide based ionic liquid electrolytes
Authors: Yoon Hyungook , Best Adam S. , Forsyth Maria , MacFarlane Douglas R. , Howlett Patrick C.
Published: January 2015

Electrolytes based on bis(fluorosulfonyl)imide (FSI) with a range of LiFSI salt concentrations were characterized using physical property measurements, as well as NMR, FT-IR and Raman spectroscopy.
Mutual solubilities between water and non-aromatic sulfonium-, ammonium- and phosphonium-hydrophobic ionic liquids
Authors: Kurnia Kiki A. , Quental Maria V. , Santos Luís M. N. B. F. , Freire Mara G. , Coutinho João A. P.
Published: January 2015

The charge distribution at the cation and further hydrogen-bonding ability plays a significant role in the solubility of non-aromatic and non-cyclic ionic liquids in water.
Liquid crystal seed nucleates liquid–solid phase change in ceria nanoparticles
Authors: Sayle Thi X. T. , Sayle Lewis W. L. , Sayle Dean C.
Published: January 2015

MD simulation reveals that the crystalline seed spontaneously evolves a liquid rather than a solid.
Spectroscopic study of ionic liquid adsorption from solution onto gold
Authors: Beattie David A. , Harmer-Bassell Sarah L. , Ho Tracey T. M. , Krasowska Marta , Ralston John , Sellapperumage Pasindu M. F. , Wąsik Patryk
Published: January 2015

HMIM NTf2 adsorbs on gold from ethanol to form a patchy bilayer. ‘Bound’ anion (filled anion) and ‘bound’ cation (filled blue) sit underneath a layer of cation (empty blue) and anion (empty orange). The IL regions are separated by oxidised gold (darker colour).
Water oxidation by amorphous cobalt-based oxides: in situ tracking of redox transitions and mode of catalysis
Authors: Risch Marcel , Ringleb Franziska , Kohlhoff Mike , Bogdanoff Peter , Chernev Petko , Zaharieva Ivelina , Dau Holger
Published: January 2015

Water oxidation by an amorphous cobalt-oxide catalyst includes redox transitions accompanied by structural changes akin to molecular and biological catalysis.
Hierarchical DSSC structures based on “single walled” TiO2nanotube arrays reach a back-side illumination solar light conversion efficiency of 8%
Authors: So Seulgi , Hwang Imgon , Schmuki Patrik
Published: January 2015

An overview of efficiency from a DSSC based on the TiO2nanotube literature in a back-side illumination configuration.
Recent advances in the understanding of two-step nucleation of protein crystals
Authors: Vorontsova Maria A. , Maes Dominique , Vekilov Peter G.
Published: January 2015

The two-step mechanism of nucleation of crystals in solutions posits that the formation of crystal nuclei occurs within structures of extended lifetimes, in which the nucleating solute is at high concentration. The validity of this mechanism has been demonstrated for proteins, small-molecule organic and inorganic materials, colloids, and polymers. Due to large molecule sizes, proteins are an ideal system to study the details of this nucleation pathway, in particular the formation mechanisms of the nucleation precursors and the associated physico-chemical rules. The precursors of protein crystal nuclei are protein-rich clusters of sizes ∼100 nm that contain 10 000–100 000 molecules and occupy less than 10−3of the total solution volume. Here we demonstrate, using oblique illumination microscopy, the liquid nature of the clusters of the protein lysozyme and reveal their inhomogeneous structure. We test a hypothesis put forth by theory that clusters primarily consist of transient protein oligomers. For this, we explore how varying the strength of the Coulomb interaction affects the cluster characteristics. We find that the cluster’s size is insensitive to variations of pH and ionic strength. In contrast, the addition of urea, a chaotropic agent that leads to protein unfolding, strongly decreases the cluster size. Shear stress, a known protein denaturant, induced by bubbling of the solutions with an inert gas, elicits a similar response. These observations support partial protein unfolding, followed by dimerization, as the mechanism of cluster formation. The amide hydrogen–deuterium exchange, monitored by nuclear magnetic resonance, highlights that lysozyme conformational flexibility is a condition for the formation of the protein-rich clusters and facilitates the nucleation of protein crystals.
Bioinspired magnetite formation from a disordered ferrihydrite-derived precursor
Authors: Dey Archan , Lenders Jos J. M. , Sommerdijk Nico A. J. M.
Published: January 2015

We show that by reacting ferrihydrite (FeH) with Fe(II)ions and subsequently increasing the pH, magnetite is formed through a multi-step nucleation process mediated by monodisperse FeH–Fe(II)primary particles. The interaction of these primary particles with a transient green rust phase leads to the formation of smaller secondary particles which form the feedstock for magnetite formation. Surprisingly, the presence of a polypeptide additive prevents the formation of green rust as an Fe(II)-rich intermediate phase, and leads to the formation of amorphous aggregates of FeH–Fe(II)particles which subsequently transform into the final magnetite nanocrystals. The observation of multiple transitions and the involvement of disordered precursor phases in this bioinspired crystallization route is important for our understanding of the nucleation of magnetite in geological and biological environments, and may lead to new approaches in the sustainable synthesis of this technologically important mineral.
Modelling the stochastic behaviour of primary nucleation
Authors: Maggioni Giovanni Maria , Mazzotti Marco
Published: January 2015

We study the stochastic nature of primary nucleation and how it manifests itself in a crystallisation process at different scales and under different operating conditions. Such characteristics of nucleation are evident in many experiments where detection times of crystals are not identical, despite identical experimental conditions, but instead are distributed around an average value. While abundant experimental evidence has been reported in the literature, a clear theoretical understanding and an appropriate modelling of this feature is still missing. In this contribution, we present two models describing a batch cooling crystallisation, where the interplay between stochastic nucleation and deterministic crystal growth is described differently in each. The nucleation and growth rates of the two models are estimated by a comprehensive set of measurements of paracetamol crystallisation from aqueous solution in a 1 mL vessel [Kadam et al., Chemical Engineering Science, 2012, 72, 10–19]. Both models are applied to the cooling crystallisation process above under different operating conditions, i.e. different volumes, initial concentrations, cooling rates. The advantages and disadvantages of the two approaches are illustrated and discussed, with particular reference to their use across scales of nucleation rate measured in very small crystallisers.
Mixed NaNbxTa1−xO3 perovskites as photocatalysts for H2 production
Authors: Jana Prabhas , de la Peña O'Shea Victor A. , Montero Cristina Mata , Gálvez Pilar , Pizarro Patricia , Coronado Juan M. , Serrano David P.
Published: January 2015

Mixed perovskites NaNbxTa1−xO3 were prepared by solid state reaction (SSR) as well as by hydrothermal (Hyd) methods, and their photocatalytic activity for hydrogen production was studied using the water–methanol system following Pt photodeposition.
Magnetic engineering of stable rod-shaped stem cell aggregates: circumventing the pitfall of self-bending
Authors: Du V. , Fayol D. , Reffay M. , Luciani N. , Bacri J-C. , Gay C. , Wilhelm C.
Published: January 2015

During the maturation process, a rod-shaped aggregate of stem cells spontaneously bends and coils into a sphere-like structure.
In situ time-lapse synchrotron radiation X-ray diffraction of silver corrosion
Authors: Wiesinger Rita , Grayburn Rosie , Dowsett Mark , Sabbe Pieter-Jan , Thompson Paul , Adriaens Annemie , Schreiner Manfred
Published: January 2015

In order to study the initial corrosion processes of silver in the presence of corrosive gases in situ time-lapse XRD experiments were performed. The data collected using a newly combined environmental cell/gas flow set up introduces a set of highly useful tools for scientists to study time-lapse gaseous corrosion at ambient temperature and pressure.
Application of multiple levels of fluid shear stress to endothelial cells plated on polyacrylamide gels
Authors: Galie P. A. , van Oosten A. , Chen C. S. , Janmey P. A.
Published: January 2015

A device able to apply multiple levels of shear stress to cells plated on polyacrylamide gels of physiological stiffness.
Microfluidic single sperm entrapment and analysis
Authors: de Wagenaar B. , Berendsen J. T. W. , Bomer J. G. , Olthuis W. , van den Berg A. , Segerink L. I.
Published: January 2015

We designed and characterized a microfluidic platform, allowing spatial confinement and analysis of individually entrapped sperm cells.
Scale-up of oCVD: large-area conductive polymer thin films for next-generation electronics
Authors: Kovacik Peter , Hierro Gabriella del , Livernois William , Gleason Karen K.
Published: January 2015

We demonstrate large-area conductive polymer films using oxidative chemical vapor deposition and apply them to low-cost and durable conductive textiles.
Thermodynamically feasible photoelectron transfer from bioactive π-expanded imidazole luminophores to ZnO nanocrystals
Authors: Jayabharathi Jayaraman , Karunakaran Chockalingam , Kalaiarasi Vellaikannu
Published: January 2015

The chemical affinity between the nitrogen atom of the imidazole and the zinc ion on the surface of the nano oxide may be a reason for strong interaction of the ligand on nanoparticles causing the enhancement.
Nanostructuring graphene for controlled and reproducible functionalization
Authors: Mali Kunal S. , Greenwood John , Adisoejoso Jinne , Phillipson Roald , De Feyter Steven
Published: January 2015

This feature article provides a glimpse of recent progress in the molecular functionalization of graphene using non-covalent as well as covalent chemistry.
Expedient access to α,β-difunctionalized azepenes using α-halo eneformamides: application to the one-pot synthesis of 2-benzazepanes
Authors: Bassler Daniel P. , Spence Laura , Alwali Amir , Beale Oliver , Beng Timothy K.
Published: January 2015

The regioselective synthesis of α,β-difunctionalized (alkenyl, aryl, sulfonyl, allyl, or alkynyl) azepenes has been accomplished through α-halo eneformamides.
Synthesis of locked cyclohexene and cyclohexane nucleic acids (LCeNA and LCNA) with modified adenosine units
Authors: Šála Michal , Dejmek Milan , Procházková Eliška , Hřebabecký Hubert , Rybáček Jiří , Dračínský Martin , Novák Pavel , Rosenbergová Šárka , Fukal Jiří , Sychrovský Vladimír , Rosenberg Ivan , Nencka Radim
Published: January 2015

We designed novel conformationally locked cyclohexene nucleic acid and studied their properties.
A novel Prins cascade process for the stereoselective synthesis of oxa-bicycles
Authors: Subba Reddy B. V. , Venkateswarlu A. , Sridevi B. , Marumudi Kanakaraju , Kunwar A. C. , Gayatri G.
Published: January 2015

E- and Z-9-Methyldeca-3,8-dien-1-ols undergo smooth cyclization with aldehydes in the presence of 20 mol% AgSbF6 under extremely mild conditions to generate the corresponding oxa-bicycles in good yields with excellent selectivity.
A benzyl alcohol derivative of the BDPA radical for fast dissolution dynamic nuclear polarization NMR spectroscopy
Authors: Muñoz-Gómez J. L. , Monteagudo E. , Lloveras V. , Parella T. , Veciana J. , Vidal-Gancedo J.
Published: January 2015

A pyruvic acid soluble BDPA derivative, BA-BDPA, is a promising candidate as a polarizing agent for in vivo DNP.
Conformational properties of 1,4- and 1,5-substituted 1,2,3-triazole amino acids – building units for peptidic foldamers
Authors: Kann Nina , Johansson Johan R. , Beke-Somfai Tamás
Published: January 2015

Conformational diversity of 1,4- and 1,5-substituted 1,2,3-triazole amino acids makes them promising building units for novel peptidic foldamers.
Exploring the scope of the isothiourea-mediated synthesis of dihydropyridinones
Authors: Yeh Pei-Pei , Daniels David S. B. , Fallan Charlene , Gould Eoin , Simal Carmen , Taylor James E. , Slawin Alexandra M. Z. , Smith Andrew D.
Published: January 2015

The exploration and expansion of the scope of the isothiourea-mediated synthesis of dihydropyridinones is presented.
The effect of leaving radical on the formation of tetrahydroselenophene by SHi ring closure: an experimental and computational study
Authors: Hancock Amber N. , Lobachevsky Sofia , Haworth Naomi L. , Coote Michelle L. , Schiesser Carl H.
Published: January 2015

Competition kinetic studies augmented with laser-flash photolysis and high-level computational techniques [G3(MP2)-RAD], with [COSMO-RS, SMD] and without solvent correction, provide kinetic parameters for the ring closures of a series of 4-(alkylseleno)butyl radicals.
Synthesis and biological studies of the thiols-triggered anticancer prodrug for a more effective cancer therapy
Authors: Xu Yuanzhen , Chen Jianjun , Li Ya , Peng Shoujiao , Gu Xueyan , Sun Meng , Gao Kun , Fang Jianguo
Published: January 2015

Thiols-triggered anticancer prodrug1produces an active DNA alkylating agent mechlorethamine leading to DNA damage and finally cell death.
Sorption of atrazine, alachlor and trifluralin from water onto different geosorbents
Authors: Leovac Anita , Vasyukova Ekaterina , Ivančev-Tumbas Ivana , Uhl Wolfgang , Kragulj Marijana , Tričković Jelena , Kerkez Đurđa , Dalmacija Božo
Published: January 2015

The sorption behavior of the herbicides atrazine, alachlor and trifluralin on two modified organoclays, one model sediment, and one natural sediment in three water matrices (synthetic water, natural groundwater and surface water) was investigated.
Exceptional thermal stability of industrially-important enzymes by entrapment within nano-boehmite derived alumina
Authors: Vinogradov Vladimir V. , Avnir David
Published: January 2015

We developed an alumina sol–gel matrix based on boehmite nanorods as a superior carrier for enzyme immobilization.
Excitation spectra and luminescence decay analysis of K+ compensated Dy3+ doped CaMoO4 phosphors
Authors: Dutta S. , Som S. , Sharma S. K.
Published: January 2015

A series of Dy3+/K+ doped calcium molybdate phosphors were synthesized by a hydrothermal synthesis method and structural, photoluminescence and decay studies were carried out.
Enhanced photoelectrochemical performance of the hierarchical micro/nano-structured TiO2 mesoporous spheres with oxygen vacancies via hydrogenation
Authors: Zhang Xiaoying , Chen Zhuoyuan
Published: January 2015

The micro/nano-structure TiO2 mesoporous spheres with oxygen vacancies exhibit a remarkably enhanced photoelectrochemical performance, which might be predominantly attributed to the introduction of hierarchical mesoporous structure besides Ov.
Flexible free-standing 3D porous N-doped graphene–carbon nanotube hybrid paper for high-performance supercapacitors
Authors: Fan Wei , Miao Yue-E , Huang Yunpeng , Tjiu Weng Weei , Liu Tianxi
Published: January 2015

Free-standing 3D porous N-doped graphene–CNT hybrid paper has been synthesized, which can be used as flexible electrodes for high-performance supercapacitors.
Anchoring superparamagnetic core–shells onto reduced graphene oxide: fabrication of Ni–carbon–rGO nanocomposite for effective adsorption and separation
Authors: Du Hang , Wang Zhen , Chen Yinghao , Liu Yanyan , Liu Yushan , Li Baojun , Wang Xiangyu , Cao Huaqiang
Published: January 2015

The magnetic Ni nanoparticles encapsulated in carbon shells were anchored on to reduced graphene oxide. The excellent removal ability of organic dyes and enhanced separation efficiency make NGC a useful candidate for waste water treatment.
One-pot synthesis of chitosan–dehydropregnenolone acetate ketimine nanoparticles and their antifungal bioevaluation
Authors: Das Archana M. , Khan Raju , Hazarika Manash P. , Baruah Debjani , Bhuyan Purnajyoti D.
Published: January 2015

This paper presents a new method for fabricating biodegradable bio-polymeric nanoparticles via a convenient one-pot strategy at room temperature under stirring conditions for application to communicable diseases.
Chemiluminescent probes for imaging H2S in living animals
Authors: Cao J. , Lopez R. , Thacker J. M. , Moon J. Y. , Jiang C. , Morris S. N. S. , Bauer J. H. , Tao P. , Mason R. P. , Lippert A. R.
Published: January 2015

Responsive 1,2-dioxetane chemiluminescent probes have been developed that display instantaneous, sensitive, and selective responses to H2S and are capable of imaging H2S in living mice.
Stability and dynamics of magnetocapillary interactions
Authors: Chinomona Rujeko , Lajeunesse Janelle , Mitchell William H. , Yao Yao , Spagnolie Saverio E.
Published: January 2015

We investigate the stability and dynamics of floating ferromagnetic beads under the influence of an oscillating background magnetic field. Striking behaviors are observed in fast transitions to and from locomotory states, offering insight into the behavior and self-assembly of interface-bound micro-particles.
High electric conductivity of liquid crystals formed by ordered self-assembly of nonionic surfactant N,N-bis(2-hydroxyethyl)dodecanamide in water
Authors: Zhang Yan , Li Dechun , Li Yaping , Zhang Sen , Wang Meng , Li Ying
Published: January 2015

Ordered self-assembly of nonionic surfactant N,N-bis(2-hydroxyethyl)dodecanamide in the presence of water achieved high electric conductivity.
Ultrafast palladium diffusion in germanium
Authors: Tahini H. A. , Chroneos A. , Middleburgh S. C. , Schwingenschlögl U. , Grimes R. W.
Published: January 2015

The interstitial diffusion mechanism of Pd in Ge that has a migration energy barrier of only 0.03 eV.
Selective adsorption and separation of dyes from an aqueous solution on organic–inorganic hybrid cyclomatrix polyphosphazene submicro-spheres
Authors: Wei Wei , Lu Rongjie , Xie Haojie , Zhang Yifan , Bai Xue , Gu Li , Da Rui , Liu Xiaoya
Published: January 2015

Poly(cyclotriphosphazene-co-4,4′-sulfonyldiphenol) (PZS) submicro-spheres were easily prepared, which exhibited a selective adsorption and separation of dyes that can be classified as Lewis acids and/or Brønsted acids by acid–base interactions.
Sulfur quantum dots wrapped by conductive polymer shell with internal void spaces for high-performance lithium–sulfur batteries
Authors: Huang Ling , Cheng Jianli , Li Xiaodong , Yuan Demao , Ni Wei , Qu Guoxing , Guan Qun , Zhang Yun , Wang Bin
Published: January 2015

Novel core–shell sulfur quantum dots/PVK nanocomposites were synthesized by a facile two-step dissolution–precipitation method.
A graphene/carbon nanotube@π-conjugated polymer nanocomposite for high-performance organic supercapacitor electrodes
Authors: Sun Minqiang , Wang Gengchao , Yang Chongyang , Jiang Hao , Li Chunzhong
Published: January 2015

An intriguing organic supercapacitor based on hierarchical porous GNS/aMWCNT@poly(1,5-diaminoanthraquinone) is fabricated with superhigh energy density and excellent cycling stability.
Self-cleaning superhydrophobic films by supersonic-spraying polytetrafluoroethylene–titania nanoparticles
Authors: Kim Do-Yeon , Lee Jong-Gun , Joshi Bhavana N. , Latthe Sanjay S. , Al-Deyab Salem S. , Yoon Sam S.
Published: January 2015

Spherical water drops show little or no adhesion to superhydrophobic surfaces due to the strong water repellence.
Copolymer-templated nitrogen-enriched nanocarbons as a low charge-transfer resistance and highly stable alternative to platinum cathodes in dye-sensitized solar cells
Authors: Ju Myung Jong , Choi In Taek , Zhong Mingjiang , Lim Kimin , Ko Jaejung , Mohin Jacob , Lamson Melissa , Kowalewski Tomasz , Matyjaszewski Krzysztof , Kim Hwan Kyu
Published: January 2015

High performance N-enriched nanocarbon CEs for organic DSSCs were synthesized by pyrolysis of self-assembled block copolymers.
Cartilage synthesis in hyaluronic acid–tyramine constructs
Authors: Ren Cindy D. , Gao Shujun , Kurisawa Motoichi , Ying Jackie Y.
Published: January 2015

The objective of this study was to determine the potential for cartilage production within a hyaluronic acid-tyramine (HA-Tyr) hydrogel scaffold.
Detection of polycyclic aromatic hydrocarbons from cooking oil using ultra-thin layer chromatography and surface enhanced Raman spectroscopy
Authors: Chen Jing , Huang Yao-wen , Zhao Yiping
Published: January 2015

The combinatory use of on-chip ultra-thin layer chromatography (UTLC) and surface enhanced Raman spectroscopy (SERS) has been demonstrated to detect mixtures of hazardous food contaminants, polycyclic aromatic hydrocarbons (PAHs), from cooking oil samples.
Highly flexible heparin-modified chitosan/graphene oxide hybrid hydrogel as a super bilirubin adsorbent with excellent hemocompatibility
Authors: Wei Houliang , Han Lulu , Tang Yongchao , Ren Jun , Zhao Zongbin , Jia Lingyun
Published: January 2015

A highly flexible heparin-modified chitosan/graphene oxide hydrogel was prepared using lyophilization–neutralization–modification as a blood-compatible adsorbent for bilirubin removal.
Controlled release and corrosion protection by self-assembled colloidal particles electrodeposited onto magnesium alloys
Authors: Sun Jiadi , Zhu Ye , Meng Long , Wei Wei , Li Yang , Liu Xiaoya , Zheng Yufeng
Published: January 2015

Self-assembled nanoparticles loaded with bioactive agents were electrodeposited to provide the magnesium alloy with controlled release and corrosion resistance properties.
ZnO nanorods and nanowalls directly synthesized on flexible substrates with block copolymer templates
Authors: Kim Jin-Hyung , Kim Sung-Soo , Sohn Byeong-Hyeok
Published: January 2015

ZnO nanorods and nanowalls were fabricated directly on flexible substrates by combining the hydrothermal growth technique with nanoporous templates obtained from block copolymers.
Synthesis and characterization of a novel donor–acceptor–donor chiral inducer and its application in electrochemical polymerization
Authors: Dong Jiuchao , Kawabata Kohsuke , Goto Hiromasa
Published: January 2015

A novel chiral inducer was synthesized for obtaining a spirally arranged conjugated polymer without chiral monomers.
Effect of gender on trunk and pelvis control during lateral movements with perturbed landing
Authors: Weltin Elmar , Gollhofer Albert , Mornieux Guillaume
Published: January 2015

In lateral reactive movements, core stability may influence knee and hip joint kinematics and kinetics. Insufficient core stabilisation is discussed as a major risk factor for anterior cruciate ligament (ACL) injuries. Due to the higher probability of ACL injuries in women, this study concentrates on how gender influences trunk, pelvis and leg kinematics during lateral reactive jumps (LRJs). Perturbations were investigated in 12 men and 12 women performing LRJs under three different landing conditions: a movable landing platform was programmed to slide, resist or counteract upon landing. Potential group effects on three‐dimensional trunk, pelvic, hip and knee kinematics were analysed for initial contact (IC) and the time of peak pelvic medial tilt (PPT). Regardless of landing conditions, the joint excursions in the entire lower limb joints were gender‐specific. Women exhibited higher trunk left axial rotation at PPT (women: 4.0 ± 7.5°, men: −3.1 ± 8.2°; p = 0.011) and higher hip external rotation at both IC and PPT (p < 0.01). But women demonstrated higher knee abduction compared to men. Men demonstrated more medial pelvic tilt at IC and especially PPT (men: –5.8 ± 4.9°, women: 0.3 ± 6.3°; p = 0.015). Strategies for maintaining trunk, pelvis and lower limb alignment during lateral reactive movements were gender‐specific; the trunk and hip rotations displayed by the women were associated with the higher knee abduction amplitudes and therefore might reflect a movement strategy which is associated with higher injury risk. However, training interventions are needed to fully understand how gender‐specific core stability strategies are related to performance and knee injury.
Constraints on dynamic stability during forward, backward and lateral locomotion in skilled football players
Authors: Mehdizadeh Sina , Arshi Ahmed Reza , Davids Keith
Published: January 2015

The aim of this study was to investigate effects of speed and plane of motion on stability during locomotion in skilled football players. Ten male national‐level football players participated in this study to run forward, backward and in lateral directions on a treadmill at 80%, 100% and 120% of their preferred running speeds. The coordinate data of passive reflective markers attached to body segments were recorded using motion capture systems. Time series data obtained from the ankle marker were used for further analyses. The largest finite‐time Lyapunov exponent and maximum Floquet multiplier were adopted to quantify local and orbital dynamic stabilities, respectively. Results showed that speed did not significantly change local and orbital dynamic stabilities in any of running patterns. However, both local and orbital dynamic stability were significantly higher in the secondary plane of progression. Data revealed that in running, unlike walking, stability in the direction perpendicular to the direction of running is significantly higher, implying that less active control is required in the secondary plane of progression. The results of this study could be useful in sports training and rehabilitation programmes where development of fundamental exercise programmes that challenge both speed and the ability to maintain stability might produce a tangible enhancement of athletic skill level.
Cardiac Energy Metabolic Alterations in Pressure Overload–Induced Left and Right Heart Failure (2013 Grover Conference Series)
Authors: Sankaralingam Sowndramalingam , Lopaschuk Gary D.
Published: January 2015

Pressure overload of the heart, such as seen with pulmonary hypertension and/or systemic hypertension, can result in cardiac hypertrophy and the eventual development of heart failure. The development of hypertrophy and heart failure is accompanied by numerous molecular changes in the heart, including alterations in cardiac energy metabolism. Under normal conditions, the high energy (adenosine triphosphate [ATP]) demands of the heart are primarily provided by the mitochondrial oxidation of fatty acids, carbohydrates (glucose and lactate), and ketones. In contrast, the hypertrophied failing heart is energy deficient because of its inability to produce adequate amounts of ATP. This can be attributed to a reduction in mitochondrial oxidative metabolism, with the heart becoming more reliant on glycolysis as a source of ATP production. If glycolysis is uncoupled from glucose oxidation, a decrease in cardiac efficiency can occur, which can contribute to the severity of heart failure due to pressure‐overload hypertrophy. These metabolic changes are accompanied by alterations in the enzymes that are involved in the regulation of fatty acid and carbohydrate metabolism. It is now becoming clear that optimizing both energy production and the source of energy production are potential targets for pharmacological intervention aimed at improving cardiac function in the hypertrophied failing heart. In this review, we will focus on what alterations in energy metabolism occur in pressure overload induced left and right heart failure. We will also discuss potential targets and pharmacological approaches that can be used to treat heart failure occurring secondary to pulmonary hypertension and/or systemic hypertension.
Lipidic cubic phase serial millisecond crystallography using synchrotron radiation
Authors: Nogly Przemyslaw , James Daniel , Wang Dingjie , White Thomas A. , Zatsepin Nadia , Shilova Anastasya , Nelson Garrett , Liu Haiguang , Johansson Linda , Heymann Michael , Jaeger Kathrin , Metz Markus , Wickstrand Cecilia , Wu Wenting , Båth Petra , Berntsen Peter , Oberthuer Dominik , Panneels Valerie , Cherezov Vadim , Chapman Henry , Schertler Gebhard , Neutze Richard , Spence John , Moraes Isabel , Burghammer Manfred , Standfuss Joerg , Weierstall Uwe
Published: January 2015

Lipidic cubic phases (LCPs) have emerged as successful matrixes for the crystallization of membrane proteins. Moreover, the viscous LCP also provides a highly effective delivery medium for serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs). Here, the adaptation of this technology to perform serial millisecond crystallography (SMX) at more widely available synchrotron microfocus beamlines is described. Compared with conventional microcrystallography, LCP-SMX eliminates the need for difficult handling of individual crystals and allows for data collection at room temperature. The technology is demonstrated by solving a structure of the light-driven proton-pump bacteriorhodopsin (bR) at a resolution of 2.4 Å. The room-temperature structure of bR is very similar to previous cryogenic structures but shows small yet distinct differences in the retinal ligand and proton-transfer pathway.
Crystal structure of ethyl 2-(2-{(1E)-[(E)-2-(2-hydroxybenzylidene)hydrazin-1-ylidene]methyl}phenoxy)acetate
Authors: Akkurt Mehmet , Mague Joel T. , Mohamed Shaaban K. , Ahmed Eman A. , Albayati Mustafa R.
Published: January 2015

In the title compound, C18H18N2O4, the planes of the benzene rings are twisted with respect to each other at 27.25 (7)°. The molecule displays an extended conformation with an intramolecular O—H...N hydrogen bond. In the crystal, weak C—H...O interactions link the molecules, forming supramolecular chains running along theb-axis direction.
Crystal structure ofN-[(8E)-12-methyl-14-phenyl-10,13,14,16-tetraazatetracyclo[7.7.0.02,7.011,15]hexadeca-1(16),2,4,6,9,11(15),12-heptaen-8-ylidene]hydroxylamine 1,4-dioxane hemisolvate
Authors: Mohamed Shaaban K. , Mague Joel T. , Akkurt Mehmet , El-Emary Talaat I. , Albayati Mustafa R.
Published: January 2015

In the title solvate, C19H13N5O·0.5C4H8O2, the main molecule is almost planar (r.m.s. deviation for the non-H atoms = 0.066 Å). The hydroxylamine group is disordered over two orientations in a 0.761 (4):0.239 (4) ratio. The complete dioxane solvent molecule is generated by a crystallographic inversion centre. In the crystal, both disorder components of the hydroxylamine group form O—H...N hydrogen bonds to the same N-atom acceptor, thereby generating [010] chains. The chains encompass [010] channels occupied by the solvent molecules. Aromatic π–π stacking is also observed [shortest centroid–centroid separation = 3.3394 (19) Å].
Crystal structure of 1′,1′′-dimethyl-4′-(4-cholorophenyl)dispiro[11H-indeno[1,2-b]quinoxaline-11,2′-pyrrolidine-3′,3′′-piperidin]-4′′-one
Authors: Nagalakshmi R.A. , Suresh J. , Malathi K. , Kumar R. Ranjith , Lakshman P. L. Nilantha
Published: January 2015

In the title compound, C30H27ClN4O, the central pyrrolidine ring adopts an envelope conformation with the methylene C atom being the flap. The quinoxaline and indane rings are each essentially planar, with r.m.s. deviations of 0.027 (1) and 0.0417 (1) Å, respectively. The pyrrolidine ring forms dihedral angles of 88.25 (1) and 83.76 (1)° with the quinoxaline and indane rings, respectively. A weak intramolecular C—H...N interaction is observed. In the crystal, C—H...π interactions lead to supramolecular chains along [101] that assemble in theacplane. Connections along thebaxis are of the type Cl...Cl [3.6538 (16) Å].
Crystal structure of ethyl 6-methyl-2-sulfanylidene-4-(thiophen-2-yl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate
Authors: Suresh M. , Padusha M. Syed Ali , Novina J. Josephine , Vasuki G. , Viswanathan Vijayan , Velmurugan Devadasan
Published: January 2015

In the title compound, C12H14N2O2S2, the dihydropyrimidine ring adopts a sofa conformation, with the C atom bearing the thienyl ring lying above the plane of the five remaining approximately coplanar (r.m.s. deviation = 0.0405 Å) atoms of the ring. The dihedral angle between the five near coplanar atoms of the ring and the thienyl ring is 89.78 (11)°. In the crystal, molecules are linked into a supramolecular chain along [100]viaN—H...O(carbonyl) hydrogen bonds. Inversion-related chains are linked into double chainsviaN—H...S(thione) hydrogen bonds. The three-dimensional architecture also features methyl–thienyl C—H...π interactions.
Crystal structure of 1,5-diethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dithione
Authors: Lamkaddem Abderrahman , Harcharras Mohamed , Shaim Abdelillah , Zouihri Hafid , Echchahed Bousselham , Bi Wenhua
Published: January 2015

In the title compound, C13H16N2S2, the seven-membered ring adopts a boat conformation, with the two phenylene C atoms representing the stern and the methylene C atom as the prow. The thione S atoms and N-bound ethyl groups lie on the opposite side of the molecule to the phenylene ring so that the molecule approximates mirror symmetry. In the crystal, supramolecular layers in thebcplane are sustained by a pair of C—H...S interactions to the same S atom acceptor.
Crystal structure of 3-(2,2-dibromoacetyl)-4-hydroxy-2H-chromen-2-one
Authors: Brahmia Ameni , Ghouili Afef , Ben Hassen Rached
Published: January 2015

The title compound, C11H6Br2O4, is a new coumarin derivative obtained from the reaction of 3-acetyl-4-hydroxy-2H-chromen-2-one with bromine in acetic acid. The hydroxyl group in involved in an intramolecular O—H...O hydrogen bond. In the crystal, π–π interactions between the rings of the bicycle [intercentroid distances = 3.498 (2) and 3.539 (2) Å] pack molecules into stacks along thebaxis, and weak intermolecular C—H...O hydrogen bonds further link these stacks into layers parallel to theabplane.
Crystal structure of azilsartan methyl ester ethyl acetate hemisolvate
Authors: Li Zhengyi , Liu Rong , Zhu Meilan , Chen Liang , Sun Xiaoqiang
Published: January 2015

The title compound, C26H22N4O5(systematic name: methyl 2-ethoxy-1-{4-[2-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)phenyl]benzyl}-1H-1,3-benzodiazole-7-carboxylate ethyl acetate hemisolvate), was obtainedviacyclization of methyl (Z)-2-ethoxy-1-{(2′-(N′-hydroxycarbamimidoyl)-[1,1′-biphenyl]-4-yl)methyl}-1H-benzo[d]imidazole-7-carboxylate with diphenyl carbonate. There are two independent molecules (AandB) with different conformations and an ethyl acetate solvent molecule in the asymmetric unit. In moleculeA, the dihedral angle between the benzene ring and its attached oxadiazole ring is 59.36 (17); the dihedral angle between the benzene rings is 43.89 (15) and that between the benzene ring and its attached imidazole ring system is 80.06 (11)°. The corresponding dihedral angles in moleculeBare 58.45 (18), 50.73 (16) and 85.37 (10)°, respectively. The C—O—C—Cm(m = methyl) torsion angles for the ethoxy side chains attached to the imidazole rings in moleculesAandBare 93.9 (3) and −174.6 (3)°, respectively. In the crystal, the components are linked by N—H...N and C—H...O hydrogen bonds, generating a three-dimensional network. Aromatic π–π stacking interactions [shortest centroid–centroid separation = 3.536 (3)Å] are also observed.
Crystal structure of (2-methyl-1-phenylsulfonyl-1H-indol-3-yl)(phenyl)methanone
Authors: Umadevi M. , Saravanan V. , Yamuna R. , Mohanakrishnan A. K. , Chakkaravarthi G.
Published: January 2015

In the title compound, C22H17NO3S, the sulfonyl-bound phenyl ring is almost orthogonal to the indole ring system, making a dihedral angle of 84.89 (7)°. The carbonyl-bound phenyl ring forms a dihedral angle of 57.32 (5)° with the indole ring system. The two phenyl rings are inclined at 52.68 (7)°. The S atom has a distorted tetrahedral configuration. In the crystal, weak C—H...O interactions link the molecules, forming a helical chain along theb-axis direction.
Crystal structure of (2-bromomethyl-1-phenylsulfonyl-1H-indol-3-yl)(phenyl)methanone
Authors: Umadevi M. , Saravanan V. , Yamuna R. , Mohanakrishnan A. K. , Chakkaravarthi G.
Published: January 2015

In the title compound, C22H16BrNO3S, the phenyl rings make dihedral angles of 84.81 (16) and 61.67 (17)° with the indole ring system (r.m.s. deviation = 0.012 Å), while the phenyl rings are inclined to one another by 69.5 (2)°. The molecular structure is stabilized by weak intramolecular C—H...O hydrogen bonds. The sulfonyl S atom has a distorted tetrahedral configuration. In the crystal, there are no significant intermolecular interactions present.
Variation in career and workplace attitudes by generation, gender, and culture differences in career perceptions in the United States and China
Authors: Yi Xiang , Ribbens Barbara , Fu Linna , Cheng Weibo
Published: January 2015

Purpose

– The purpose of this paper is to compare and understand how age, gender and culture affect individual career and work-related attitudes in Chinese and American samples.

Design/methodology/approach

– Online and printed questionnaires were administered to employees and managers in China, whereas in the USA, faculty, staff and students at a Midwestern university responded to an online survey. Snowball sampling technique was used to collect data. Independent samplet-tests were conducted to test the hypothesis.

Findings

– The study showed different work values and attitudes in the workplace between Chinese and the US samples, and indicated the specifics influences that national culture has on them. Culture affects generational changes; generational differences in the US sample are bigger than in Chinese sample; work values differ across generations and cultures; traditional gender role differences persist more strongly across generations in Chinese sample than in the US sample.

Research limitations/implications

– Generalizability issues; cross-sectional data.

Practical implications

– US-based multi-national corporations need to understand these differences and better manage their diverse employees operating in China.

Originality/value

– This study compared generation, culture and gender differences simultaneously; parallel groups at similar life stages were used by basing the boundaries of each generation on the distinct cultural events of each nation. This approach is more consistent with generation definitions than by using influential specific events of each country, respectively. Useful to managers, it will provide guidance for understanding work values and attitudes across gender and generations in the USA and China. Most benefit will occur for US based multinational companies that have Chinese operations, and manage employees with cultural, gender and generational differences.
How being female impacts learning and career growth in advertising creative departments
Authors: Windels Kasey , Mallia Karen L.
Published: January 2015

Purpose

– In the male-dominant creative industries, do men and women have access to the same resources for career learning and development? The purpose of this paper is to examine women’s perspectives of their career trajectories in advertising creative departments.

Design/methodology/approach

– Situated learning theory views learning as produced through interaction with and increasing participation in a community of practice. Interviews were conducted with 19 female creatives to examine two research questions: first, how do women develop identities as creative practitioners within the male dominated advertising creative department? and second, how are women’s learning trajectories influenced by their gender?

Findings

– Gendered expectations affected the type of work women were supposed to produce, their ability to sell work, and the types of assignments they received. Women lacked legitimacy and experienced difficulties developing an identity as a master practitioner. They instead emphasized parts of their identity unrelated to the profession.

Research limitations/implications

– Women were unable to develop identities as full members of the community of practice. The identity formed in conjunction with work was that of a person with lesser talents, fewer opportunities, and less valued contributions, causing them to exit the field or seek positive identity from places other than work.

Originality/value

– This study was the first study that the authors are aware of to examine empirically the relationship between situated learning theory and gender. It provided evidence from women’s perspectives that gender restricted access to material for forming a positive work-identity, which impeded learning as women realized and accepted they were on a different trajectory than similarly-situated males.
Unions’ response to corporate restructuring in Telefónica: locked into collective bargaining?
Authors: Rodríguez-Ruiz Óscar
Published: January 2015

Purpose

– The purpose of this paper is to analyze the restructuring approach followed by the highly profitable Telefónica in its 2011 redundancy plan, and explores unions’ response to management strategy.

Design/methodology/approach

– The research follows a case study approach constructing a dataset with information from company reports, committee records, union documents, press releases, and other available sources such as specialized journals and newspapers.

Findings

– Specifically this case study tries to show how massive job cuts have been implemented through a labour-mediated downsizing strategy that mitigates contestation and industrial conflict.

Originality/value

– The paper tackles the relevant question of how unions respond to corporate restructuring (involving downsizing) in countries where industrial relations institutions remain relatively strongly embedded and proactive.