bluuebunny/crossref_metadata_2025 huggingface dataset:
Src-mediated tyrosine phosphorylation of Protein Kinase D2 at focal adhesions regulates cell adhesion
Authors: Durand Nisha , Bastea Ligia I. , Döppler Heike , Eiseler Tim , Storz Peter
Published: August 2017

Dependent on their cellular localization, Protein Kinase D (PKD) enzymes regulate different processes including Golgi transport, cell signaling and response to oxidative stress. The localization of PKD within cells is mediated by interaction with different lipid or protein binding partners. With the example of PKD2, we here show that phosphorylation events can also contribute to localization of subcellular pools of this kinase. Specifically, in the present study, we show that tyrosine phosphorylation of PKD2 at residue Y87 defines its localization to the focal adhesions and leads to activation. This phosphorylation occurs downstream of RhoA signaling and is mediated via Src. Moreover, mutation of this residue blocks PKD2’s interaction with Focal Adhesion Kinase (FAK). The presence and regulation of PKD2 at focal adhesions identifies a novel function for this kinase as a modulator of cell adhesion and migration.
Change in sensitivity to visual error in superior colliculus during saccade adaptation
Authors: Kojima Yoshiko , Soetedjo Robijanto
Published: August 2017

Saccadic eye movements provide a valuable model to study the brain mechanisms underlying motor learning. If a target is displaced surreptitiously while a saccade is underway, the saccade appears to be in error. If the error persists gradual neuronal adjustments cause the eye movement again to land near the target. This saccade adaptation typically follows an exponential time course, i.e., adaptation speed slows as adaptation progresses, indicating that the sensitivity to error decreases during adaptation. Previous studies suggested that the superior colliculus (SC) sends error signals to drive saccade adaptation. The objective of this study is to test whether the SC error signal is related to the decrease in the error sensitivity during adaptation. We show here that the visual activity of SC neurons, which is induced by a constant visual error that drives adaptation, decreases during saccade adaptation. This decrease of sensitivity to visual error was not correlated with the changes of primary saccade amplitude. Therefore, a possible interpretation of this result is that the reduction of visual sensitivity of SC neurons contributes an error sensitivity signal that could help control the saccade adaptation process.
REST, a master regulator of neurogenesis, evolved under strong positive selection in humans and in non human primates
Authors: Mozzi Alessandra , Guerini Franca Rosa , Forni Diego , Costa Andrea Saul , Nemni Raffaello , Baglio Francesca , Cabinio Monia , Riva Stefania , Pontremoli Chiara , Clerici Mario , Sironi Manuela , Cagliani Rachele
Published: August 2017

The transcriptional repressor REST regulates many neuronal genes by binding RE1 motifs. About one third of human RE1s are recently evolved and specific to primates. As changes in the activity of a transcription factor reverberate on its downstream targets, we assessed whether REST displays fast evolutionary rates in primates. We show that REST was targeted by very strong positive selection during primate evolution. Positive selection was also evident in the human lineage, with six selected sites located in a region that surrounds a VNTR in exon 4. Analysis of expression data indicated that REST brain expression peaks during aging in humans but not in other primates. Because a REST coding variant (rs3796529) was previously associated with protection from hippocampal atrophy in elderly subjects with mild cognitive impairment (MCI), we analyzed a cohort of Alzheimer disease (AD) continuum patients. Genotyping of two coding variants (rs3796529 and rs2227902) located in the region surrounding the VNTR indicated a role for rs2227902 in modulation of hippocampal volume loss, indirectly confirming a role for REST in neuroprotection. Experimental studies will be instrumental to determine the functional effect of positively selected sites in REST and the role of REST variants in neuropreservation/neurodegeneration.
Application of color Doppler ultrasound combined with Doppler imaging artifacts in the diagnosis and estimate of congenital hypertrophic pyloric stenosis
Authors: Ma Suihong , Liu Jianhua , Zhang Youxiang , Yang Yuwen , Jin Hai , Ma Xiaomei , Wei Hongqin
Published: August 2017

Congenital Hypertrophic Pyloric Stenosis (CHPS) is a disease condition that is caused as a result of pylorus wall hypertrophy and hyperplasia. In this study, we used color Doppler flow imaging (CDFI) and Doppler artifacts technique to observe the blood flow of hypertrophic pylorus tissue and the dynamic imaging of liquid passing through the pyloric canal in CHPS infants. 65 cases of CHPS infants and 50 infants without CHPS served as control group. We found that there were statistically significant differences between the blood flow grade of muscular layer and mucosal layer between CHPS and control infants, but no significant differences were observed in the same group. Doppler artifacts technique demonstrated the whole process of contrast agent flow through pyloric canal was directly observed in 35 of 65 subjects, and the internal diameter of the pyloric canal was 1.93 ± 0.33mm.Conclusion that CDFI combined with color Doppler artifacts technique was proved to be effective to observe the distribution feature and blood flow grade in each layer of pyloric canal in CHPS patients. This method provides the evidence for judging the degree of pyloric stenosis clinically, and furnishes the basis of therapy along with its clinical significance and good application value.
Copper Induced Conformational Changes of Tripeptide Monolayer Based Impedimetric Biosensor
Authors: Mervinetsky Evgeniy , Alshanski Israel , Hamo Yonatan , Sandonas Leonardo Medrano , Dianat Arezoo , Buchwald Jörg , Gutierrez Rafael , Cuniberti Gianaurelio , Hurevich Mattan , Yitzchaik Shlomo
Published: August 2017

Copper ions play a major role in biological processes. Abnormal Cu2+ ions concentrations are associated with various diseases, hence, can be used as diagnostic target. Monitoring copper ion is currently performed by non-portable, expensive and complicated to use equipment. We present a label free and a highly sensitive electrochemical ion-detecting biosensor based on a Gly-Gly-His tripeptide layer that chelate with Cu2+ ions. The proposed sensing mechanism is that the chelation results in conformational changes in the peptide that forms a denser insulating layer that prevents RedOx species transfer to the surface. This chelation event was monitored using various electrochemical methods and surface chemistry analysis and supported by theoretical calculations. We propose a highly sensitive ion-detection biosensor that can detect Cu2+ ions in the pM range with high SNR parameter.
Impact of negative inotropic drugs on accuracy of diastolic stress echocardiography for evaluation of left ventricular filling pressure
Authors: Salem Joe-Elie , Laveau Florent , Ceccaldi Alexandre , Funck-Brentano Christian , Hulot Jean Sebastien , Mameri Amel , Barthelemy Olivier , Helft Gerard , Feuvre Claude Le , Isnard Richard , Hammoudi Nadjib
Published: August 2017

The ratio of early diastolic trans-mitral flow velocity to tissue-Doppler mitral annular early diastolic velocity (E/e′), and left ventricular end-diastolic pressure(LVEDP) have been shown to be correlated at rest, provided that patients are not on positive inotropic drugs. Data concerning the latter correlation during exercise stress are conflicting. Therefore, we investigated if use of negative inotropic drugs (NID), impacts the accuracy of E/e′ as a surrogate for LVEDP during low-level exercise. An exercise(50 watts) during cardiac invasive hemodynamic monitoring and an exercise echocardiography were performed prospectively within 24 hours in 54 patients (81%male, 62 ± 9years) with preserved LV Ejection-Fraction. Before exercise, the patients had scattered LVEDP (13.8 ± 5.8 mmHg) and septal E/e′ (8.7 ± 2.7). Half of them were on NID, mainly betablockers(n = 26). The correlation between septal-E/e′ and LVEDP was low for examinations performed at rest (r = 0.35,p = 0.01) with no significant impact of NID. For measurements performed at 50 Watts, NID had a significant impact on the association between septal-E/e′50 watts and LVEDP50 watts (β = −0.28,p = 0.03). Correlation between septal-E/e′50 watts and LVEDP50 watts persisted in patients on NID (r = 0.61,p = 0.001) while it disappeared in the group of patients with no NID (r = 0.15,p = 0.47). NID use is an important confounding factor to take into consideration when assessing exercise LVFP using stress E/e′ in patients with preserved LVEF.
The water kinetics of superabsorbent polymers during cement hydration and internal curing visualized and studied by NMR
Authors: Snoeck D. , Pel L. , De Belie N.
Published: August 2017

SuperAbsorbent Polymers (SAPs) can be applied as an admixture in cementitious materials. As the polymers are able to swell, they will absorb part of the mixing water and can then release that water back towards the cementitious matrix for internal curing. This is interesting in terms of autogenous shrinkage mitigation as the internal relative humidity is maintained. The mechanism is theoretically described by the Powers and Brownyard model, but the kinetics and water release still remain subject of detailed investigation. This paper uses Nuclear Magnetic Resonance (NMR) to study the release of water from the superabsorbent polymers towards the cementitious matrix during cement hydration. The release of water by the SAPs is monitored as a function of time and degree of hydration. The internal humidity is also monitored in time by means of sensitive relative-humidity sensors.
Olfactory receptor 10J5 responding to α-cedrene regulates hepatic steatosis via the cAMP–PKA pathway
Authors: Tong Tao , Ryu Sang Eun , Min Yeojin , de March Claire A. , Bushdid Caroline , Golebiowski Jérôme , Moon Cheil , Park Taesun
Published: August 2017

Ectopic expression and functions of odorant receptors (ORs) in the human body have aroused much interest in the past decade. Mouse olfactory receptor 23 (MOR23, olfr16) and its human orthologue, OR10J5, have been found to be functionally expressed in several non-olfactory systems. Here, using MOR23- and OR10J5-expressing Hana3A cells, we identified α-cedrene, a natural compound that protects against hepatic steatosis in mice fed the high-fat diet, as a novel agonist of these receptors. In human hepatocytes, an RNA interference-mediated knockdown of OR10J5 increased intracellular lipid accumulation, along with upregulation of lipogenic genes and downregulation of genes related to fatty acid oxidation. α-Cedrene stimulation resulted in a significant reduction in lipid contents of human hepatocytes and reprogramming of metabolic signatures, which are mediated by OR10J5, as demonstrated by receptor knockdown experiments using RNA interference. Taken together, our findings show a crucial role of OR10J5 in the regulation of lipid accumulation in human hepatocytes.
All-solid-state ion-selective electrodes with redox-active lithium, sodium, and potassium insertion materials as the inner solid-contact layer
Authors: Komaba Shinichi , Akatsuka Tatsuya , Ohura Kohei , Suzuki Chihiro , Yabuuchi Naoaki , Kanazawa Shintaro , Tsuchiya Kazuhiko , Hasegawa Taku
Published: August 2017

Ion sensor performance is highly improved by the installation of insertion materials applied in rechargeable Li, Na, and K batteries.
Quantitative analysis of different nitrogen isotope labelled nitrates in paddy soil using mid-infrared attenuated total reflectance spectroscopy
Authors: Shao Yanqiu , Du Changwen , Zhou Jianmin , Ma Fei , Zhu Ying , Yang Kai , Tian Chao
Published: August 2017

Nitrogen isotope labelled technology with mass spectroscopy is commonly used to trace the fate of agricultural N in the environment.
In-syringe chitosan-assisted dispersive micro-solid phase extraction for the determination of anthraquinones in rhubarb-based oral liquids using high performance liquid chromatography
Authors: Shi Zhihong , Zhang Dan , Li Xinghong , Shen Huimin , Zhao Xuan , Zhang Hongyi
Published: August 2017

In-syring chitosan-assisted dispersive micro-solid phase extraction for the determination of anthraquinones.
Fast detection of Escherichia coli in food using nanoprobe and ATP bioluminescence technology
Authors: Zhang Zhijie , Wang Chunxing , Zhang Liren , Meng Qingtian , Zhang Yuemin , Sun Fang , Xu Yuanda
Published: August 2017

This paper presents a novel biochemical system prototype for colony counting ofEscherichia coliusing a nano-probe associated with adenosine triphosphate (ATP).
Paper-based readout to improve the measuring accuracy of gold nanoparticle aggregation-based colorimetric biosensors
Authors: Cheng Sheng , Tian Jingjing , Zheng Bin , Wei Haibing , Ding Yunsheng , Zhao Jiejing
Published: August 2017

The dynamic process of nanoparticle aggregation, especially the salt-induced aggregation that has a high aggregation rate in 300 seconds, is an obstacle to accurate signal capture in a predetermined time and well-repeatable result acquisition for biosensing purposes.
A covalent G-site inhibitor for glutathione S-transferase Pi (GSTP1-1)
Authors: Shishido Yuko , Tomoike Fumiaki , Kimura Yasuaki , Kuwata Keiko , Yano Takato , Fukui Kenji , Fujikawa Haruka , Sekido Yoshitaka , Murakami-Tonami Yuko , Kameda Tomoshi , Shuto Satoshi , Abe Hiroshi
Published: August 2017

We herein report the first covalent G-site-binding inhibitor for GST, GS-ESF (1), which irreversibly inhibited the GSTP1-1 function.
One-step synthesis of two Wells–Dawson arsenotungstate hybrids via M–O–M bridges for efficient adsorption and selective separation of organic pollutants
Authors: Liu Lu , Wang Bo , Lv Jing Hua , Yu Kai , Wang Lu , Zhang He , Wang Shuo , Zhou Bai Bin
Published: August 2017

Two chain-like Dawson arsenotungstate hybrids with M–O–M and Cu–L linker have been hydrothermally synthesized, which have good electrocatalytic activity and selective adsorption properties for MB.
PET-based bisBODIPY photosensitizers for highly efficient excited triplet state and singlet oxygen generation: tuning photosensitizing ability by dihedral angles
Authors: Zhang Xian-Fu , Yang Xudong , Xu Baomin
Published: August 2017

PET-based excited triplet state and singlet oxygen photosensitizers: covalent BODIPY dimers.
Probing the geometry reorganization from solution to gas-phase in putrescine derivatives by IRMPD, 1H-NMR and theoretical calculations
Authors: Carita Correra Thiago , Santos Fernandes André , Mota Reginato Marcelo , Colucci Ducati Lucas , Berden Giel , Oomens Jos
Published: August 2017

Geometry reorganization of ESI formed ions are demonstrated and explicit calculations of the solution phase are shown to be relevant.
Atomically dispersed supported metal catalysts: perspectives and suggestions for future research
Authors: Gates Bruce C. , Flytzani-Stephanopoulos Maria , Dixon David A. , Katz Alexander
Published: August 2017

Catalysts consisting of metal atoms that are atomically dispersed on supports are gaining wide attention because of the rapidly developing understanding of their structures and functions and the discovery of new, stable catalysts with new properties.
Multicomponent equiatomic rare earth oxides with a narrow band gap and associated praseodymium multivalency
Authors: Sarkar Abhishek , Loho Christoph , Velasco Leonardo , Thomas Tiju , Bhattacharya Subramshu S. , Hahn Horst , Djenadic Ruzica
Published: August 2017

Phase pure multinary rare earth oxides, containing multivalent praseodymium, have a narrow band gap and a high level of oxygen vacancies.
H4octapa: synthesis, solution equilibria and complexes with useful radiopharmaceutical metal ions
Authors: Jaraquemada-Peláez María de Guadalupe , Wang Xiaozhu , Clough Thomas J. , Cao Yang , Choudhary Neha , Emler Kirsten , Patrick Brian O. , Orvig Chris
Published: August 2017

H4octapa is synthesized and complexed to nine metals of medicinal interest. Crystal structures of the ligand and its La complex were obtained. Solution equilibria for the ligand and several lanthanide complexes were investigated.
Ring expansion of a ring expanded carbene
Authors: García Lucía , Al Furaiji Khalidah H. M. , Wilson David J. D. , Dutton Jason L. , Hill Michael S. , Mahon Mary F.
Published: August 2017

Reaction of phenylsilane with the ring expanded carbene 6-Mes results in facile Si–H oxidative addition to the carbenic carbon at room temperature and ring opening on heating.
Mango-bagasse functional-confectionery: vehicle for enhancing bioaccessibility and permeability of phenolic compounds
Authors: Herrera-Cazares Luz Abril , Hernández-Navarro Fátima , Ramírez-Jiménez Aurea K. , Campos-Vega Rocío , Reyes-Vega María de la Luz , Loarca-Piña Guadalupe , Morales-Sánchez Eduardo , Wall-Medrano Abraham , Gaytán-Martínez Marcela
Published: August 2017

Study on bioaccessibility and absorption path of mango bagasse phenolics.
Organic liquid-crystal devices based on ionic conductors
Authors: Yang Can Hui , Zhou Shuang , Shian Samuel , Clarke David R. , Suo Zhigang
Published: August 2017

We use hydrogels to drive liquid crystals, achieving stretchable electrooptics. The device performance was maintained under a biaxial stretch of 1.5.
Study of molecular structure, chemical reactivity and H-bonding interactions in the cocrystal of nitrofurantoin with urea
Authors: Khan E. , Shukla A. , Jadav N. , Telford R. , Ayala A. P. , Tandon P. , Vangala V. R.
Published: August 2017

The cocrystal of nitrofurantoin with urea (C8H6N4O5)·(CH4N2O), a non-ionic supramolecular complex, has been studied.
Nitroaromatic sensing with a new lanthanide coordination polymer [Er2(C10H4O4S2)3(H2O)6]n assembled by 2,2′-bithiophene-5,5′-dicarboxylate
Authors: Einkauf Jeffrey D. , Ortega Raul E. , Mathivathanan Logesh , de Lill Daniel T.
Published: August 2017

A new three dimensional lanthanide-containing coordination polymer assembled from 2,2′-bithiophene-5,5′-dicarboxylic acid ([Ln2(C10H4O4S2)3(H2O)6]n, Ln = Sm–Yb) was solvothermally synthesized and used as a sensor to detect nitroaromatic compounds via luminescence quenching.
Enhanced performances of functionalized XC-72 supported Ni(OH)2 composites for supercapacitors
Authors: Qin Xiaolong , Tang Shuihua , Yuan Jiawei , Deng Yuxiao , Qu Renjie , Wu Linshan , Li Jie
Published: August 2017

Introducing oxygen-containing groups on the surface of XC-72 improves the supercapacitive performances of Ni(OH)2/XC-72.
Synthesis of a multi-functional DNA nanosphere barcode system for direct cell detection
Authors: Han Sangwoo , Lee Jae Sung , Lee Jong Bum
Published: August 2017

DNA-based nanosphere fabricated by enzymatic replication technique has been developed for multi-target cells detection.
Smart candle soot coated membranes for on-demand immiscible oil/water mixture and emulsion switchable separation
Authors: Li Jian , Zhao Zhihong , Li Dianming , Tian Haifeng , Zha Fei , Feng Hua , Guo Lin
Published: August 2017

Candle soot coated membranes with underwater superoleophobicity and underoil superhydrophobicity were used for on-demand immiscible oil/water mixture and emulsion separation.
Magnetism of the hypo-oxide state at the diffuse interface between the ferromagnet and antiferromagnet phases
Authors: Jung Min-Seung , Im Mi-Young , Lee Bong Ho , Kim Namkyu , Lee Ki-Suk , Hong Jung-Il
Published: August 2017

A controlled combination of ferromagnetic and antiferromagnetic couplings among atoms in the interface hypo-oxide phase establishes an exotic spin structure with novel magnetic behavior.
NiO-nanoflakes grafted graphene: an excellent photocatalyst and a novel nanomaterial for achieving complete pathogen control
Authors: Arshad A. , Iqbal J. , Mansoor Q.
Published: August 2017

NiO-nanoflakes grafted graphene provides exciting solution to decontaminate dyes polluted water alongside being a novel bactericidal nanomaterial.
Helically twining polymerization for constructing polymeric double helices
Authors: Huang Huajun , Hong Song , Liang Junya , Shi Yan , Deng Jianping
Published: August 2017

Double helical substituted polyacetylenes (DHSPs) were successfully prepared by a novel chiral induction–helically twining polymerization strategy.
Marrying multicomponent reactions and aggregation-induced emission (AIE): new directions for fluorescent nanoprobes
Authors: Long Zi , Mao Liucheng , Liu Meiying , Wan Qing , Wan Yiqun , Zhang Xiaoyong , Wei Yen
Published: August 2017

Recent development and progress for fabrication and applications of aggregation-induced emission polymers through multicomponent reactions have been summarized in this review.
High resolution mass spectrometric access to nitroxide containing polymers
Authors: Fischer Tobias S. , Steinkoenig Jan , Woehlk Hendrik , Blinco James P. , Fairfull-Smith Kathryn , Barner-Kowollik Christopher
Published: August 2017

We introduce a mass spectrometric access route to nitroxide containing polymers via high resolution electrospray ionization mass spectrometry (HR ESI MS), a polymer class that is – due to the presence of unpaired spins – highly challenging to analyze via NMR techniques.
Branched PdAu nanowires with superior electrocatalytic formic acid oxidation activities
Authors: Wang Yingxia , Xiong Zhong , Xia Yanzhi
Published: August 2017

Branched PdAu nanowires supported on graphene were prepared as catalysts for formic acid electro-oxidation, and they exhibited higher catalytic activity and durability than Pd/graphene and commercial Pd/C catalysts.
One-step in situ synthesis of strontium ferrites and strontium ferrites/graphene composites as microwave absorbing materials
Authors: Chen Wei , Liu Qingyun , Zhu Xixi , Fu Min
Published: August 2017

The synergistic effect between graphene and SrFe12O19 assures outstanding absorbing properties.
Deep-red organic light-emitting diodes with stable electroluminescent spectra based on zinc complex host material
Authors: Li Yungui , Gao Xiang , Wang Lei , Tu Guoli
Published: August 2017

Efficient deep-red organic light-emitting diodes with 13.1% EQE, CIE coordinates of (0.70, 0.30) and stable electroluminescent spectra.
Favored surface-limited oxidation of cellulose with Oxone® in water
Authors: Ruan Chang-Qing , Strømme Maria , Mihranyan Albert , Lindh Jonas
Published: August 2017

A new method for favored C6 oxidation of cellulose was developed. The method uses the commercially available oxidant Oxone to provide the oxidized cellulose in good yields. The oxidation is conveniently carried out in a one-pot procedure in water.
High-flux polyamide reverse osmosis membranes by surface grafting 4-(2-hydroxyethyl)morpholine
Authors: Pang Ruizhi , Zhang Kaisong
Published: August 2017

A surface grafted PA RO membrane with 4-(2-hydroxyethyl)morpholine was fabricated to improve water flux.
Perimidine based selective colorimetric and fluorescent turn-off chemosensor of aqueous Cu2+: studies on its antioxidant property along with its interaction with calf thymus-DNA
Authors: Roy Debashis , Chakraborty Arijit , Ghosh Rina
Published: August 2017

A perimidine derivative 1 selectively senses nanomolar aqueous Cu2+ spectrophotometrically, exhibits better antioxidant capability than l-ascorbic acid, and interacts with CT-DNA.
A micro-solid phase extraction in glass pipette packed with amino-functionalized silica for rapid analysis of petroleum acids in crude oils
Authors: Zhu Gang-Tian , He Sheng , He Xiao-Mei , Zhu Shu-Kui , Feng Yu-Qi
Published: August 2017

A convenient micro-SPE was designed for rapid analysis of petroleum acids in crude oils.
Synthesis of 3D porous MoS2/g-C3N4 heterojunction as a high efficiency photocatalyst for boosting H2 evolution activity
Authors: Cao Youzhi , Gao Qin , Li Qiao , Jing Xinbo , Wang Shufen , Wang Wei
Published: August 2017

A novel strategy was applied for the preparation of MoS2/graphitic carbon nitride (g-C3N4) with porous morphology.
The influence of charge compensation defects on the spectroscopic properties of europium doped Ca9Y(PO4)7
Authors: Górecka N. , Szczodrowski K. , Lazarowska A. , Barzowska J. , Michalik D. , Grinberg M.
Published: August 2017

In this study, a series of Ca9Y(PO4)7 compounds doped with 5% of Eu ions and with different [Y]/[Ca] ratios was synthesized using the Pechini method.
Supercritical fluid electrodeposition, structural and electrical characterisation of tellurium nanowires
Authors: Bartlett Philip N. , Cook David A. , Hasan Mahboba M. , Hector Andrew L. , Marks Sam , Naik Jay , Reid Gillian , Sloan Jeremy , Smith David C. , Spencer Joe , Webber Zondy
Published: August 2017

Crystalline sub 20 nm semiconducting nanowires have been electrodeposited from a supercritical fluid for the first time.
Highly efficient UV-sensing properties of Sb-doped ZnO nanorod arrays synthesized by a facile, single-step hydrothermal reaction
Authors: Kim Donghyung , Kim Wuseok , Jeon Sangmin , Yong Kijung
Published: August 2017

The synthesis of electrical and optical property-modulated, low-dimensional metal oxide semiconductors has been adopted for the development of nanodevices.
Multiwalled carbon nanotubes enhanced the friction layer evolution and self-lubricating property of TiAl-10 wt% Ag-1 wt% MWCNTs sample
Authors: Yang Kang , Ma Hongru , Liu Xiyao , Zhang Yangming , He Qiang
Published: August 2017

The necessity of reducing energy consumption and usage of material in aerospace and aviation industries drives the further optimization of friction and wear properties of TiAl alloys.
Upgrading of palmitic acid over MOF catalysts in supercritical fluid of n-hexane
Authors: Fang Xiao , Shi Yanchun , Wu Kejing , Liang Junmei , Wu Yulong , Yang Mingde
Published: August 2017

The addition of phosphotungstic acid (PTA) to the synthesis mixture of PdCu@FeIII–MOF-5 yields the direct encapsulation of PTA inside the MOF structure (i.e. PTA@PdCu@FeIII–MOF-5) through a facile solvothermal approach.
Simultaneous patterning of proteins and cells through bioconjugation with photoreactable phospholipid polymers
Authors: Seo Ji-Hun , Ishihara Kazuhiko
Published: August 2017

Photoreactable bioconjugated macromolecule composed of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-(4-azidobenzamido)ethyl methacrylate was synthesized to develop simultaneously patterned surface of proteins and cells.
Photoelectrocatalytic water treatment systems: degradation, kinetics and intermediate products studies of sulfamethoxazole on a TiO2–exfoliated graphite electrode
Authors: Peleyeju Moses G. , Umukoro Eseoghene H. , Tshwenya Luthando , Moutloali Richard , Babalola Jonathan O. , Arotiba Omotayo A.
Published: August 2017

EG–TiO2photoanode was applied for the photoelectrocatalytic degradation of sulfamethoxazole. Significant COD abatement was obtained and degradation route was proposed.
Coulomb explosion of vertically aligned carbon nanofibre induced by field electron emission
Authors: Li Yunhan , Sun Yonghai , Jaffray David A. , Yeow John T. W.
Published: August 2017

The direct observation and fundamental understanding of the carbon nanofiber disintegration process: a light emission followed by a Coulomb explosion.
Microstructure and photocatalytic properties of polyimide/heterostructured NiO–Fe2O3–ZnO nanocomposite films via an ion-exchange technique
Authors: Lei Yonglin , Huo Jichuan , Liao Huiwei
Published: August 2017

An innovative photocatalytic PI/heterostructured NiO–Fe2O3–ZnO nanocomposite was proposed.
One pot flame retardant and weathering resistant coatings for plastics: a novel approach
Authors: Beaugendre A. , Saidi S. , Degoutin S. , Bellayer S. , Pierlot C. , Duquesne S. , Casetta M. , Jimenez M.
Published: August 2017

The first epoxy/fluoropolymer/iron oxide self-stratified coatings (thickness < 100 μm) with outstanding fireproofing performances were designed for polycarbonate substrates.
Chiral and non-conjugated fluorescent salen ligands: AIE, anion probes, chiral recognition of unprotected amino acids, and cell imaging applications
Authors: Shen Guangyu , Gou Fei , Cheng Jinghui , Zhang Xiaohong , Zhou Xiangge , Xiang Haifeng
Published: August 2017

Chiral and non-conjugated fluorescent salen ligands with a cyclohexane/1,2-diphenylethane bridge have small π-conjugated systems but exhibit strong aggregation/anion/amino acid-induced emission.
Cage to cage study of ionic liquid and cyclic oligosaccharides to form inclusion complexes
Authors: Roy Aditi , Roy Mahendra Nath
Published: August 2017

Encapsulation of trihexyltetradecylphosphonium chloride inside α and β-cyclodextrins in both aqueous solution and solid state with 1 : 1 stoichiometry.
Correction: Cu(i)-catalyzed double C–H amination: synthesis of 2-iodo-imidazo[1,2-a]pyridines
Authors: Dheer Divya , Reddy K. Ranjith , Rath Santosh K. , Sangwan P. L. , Das Parthasarathi , Shankar Ravi
Published: August 2017

Correction for ‘Cu(i)-catalyzed double C–H amination: synthesis of 2-iodo-imidazo[1,2-a]pyridines’ by Divya Dheer et al., RSC Adv., 2016, 6, 38033–38036.
What is the fundamental ion-specific series for anions and cations? Ion specificity in standard partial molar volumes of electrolytes and electrostriction in water and non-aqueous solvents
Authors: Mazzini Virginia , Craig Vincent S. J.
Published: August 2017

Consistent trends in ion-specificity across many solvents.
A platform for high-throughput screening of DNA-encoded catalyst libraries in organic solvents
Authors: Hook K. Delaney , Chambers John T. , Hili Ryan
Published: August 2017

PEGylation of DNA-encoded libraries enables high-throughput screening of small-molecule catalysts in organic solvents.
3D hierarchical MnO2 microspheres: a prospective material for high performance supercapacitors and lithium-ion batteries
Authors: Khalid Syed , Cao Chuanbao , Naveed Muhammad , Younas Waqar
Published: August 2017

3D hierarchical MnO2 microspheres with an ultrathin nanosheet structure and high specific surface area (184.32 m2 g−1) are synthesized by a rapid microwave heating method in just 10 minutes.
Defect structure and percolation in the packing of bidispersed particles on a sphere
Authors: Mascioli Andrew M. , Burke Christopher J. , Giso Mathew Q. , Atherton Timothy J.
Published: August 2017

We study packings of bidispersed spherical particles on a sphere. As bidispersity increases, scars previously observed in monodispersed packings grow and percolate the particles' neighbor network.
Transfer matrix theory of polymer complex coacervation
Authors: Lytle Tyler K. , Sing Charles E.
Published: August 2017

A new theoretical approach to modeling polymeric complex coacervation captures how molecular features affect charge-driven phase separation.
Effect of oligonucleic acid (ONA) backbone features on assembly of ONA–star polymer conjugates: a coarse-grained molecular simulation study
Authors: Condon Joshua E. , Jayaraman Arthi
Published: August 2017

Using coarse-grained simulations, we study the effect of varying oligonucleic acid (ONA) backbone flexibility, ONA charge and star polymer architecture on structure and thermodynamics of ONA–star polymer conjugates assembly.
Topological vacancies in spherical crystals
Authors: Yao Zhenwei
Published: August 2017

Understanding geometric frustration of ordered phases in two-dimensional condensed matter on curved surfaces is closely related to a host of scientific problems in condensed matter physics and materials science.
Free-standing monolithic nanoporous graphene foam as a high performance aluminum-ion battery cathode
Authors: Huang Xiaodan , Liu Yang , Zhang Hongwei , Zhang Jun , Noonan Owen , Yu Chengzhong
Published: August 2017

Aluminum-ion batteries with a new monolithic nanoporous graphene cathode and a novel coin-cell configuration have been developed and delivered superior performance.
Crab shell-derived nitrogen-doped micro-/mesoporous carbon as an effective separator coating for high energy lithium–sulfur batteries
Authors: Shao Hongyuan , Ai Fei , Wang Weikun , Zhang Hao , Wang Anbang , Feng Wang , Huang Yaqin
Published: August 2017

The synthesis of N-MIMEC from crab shell and the LiPS-trapping mechanisms of the N-MIMEC-coated separator during the discharge/charge process are demonstrated.
An oxidized magnetic Au single atom on doped TiO2(110) becomes a high performance CO oxidation catalyst due to the charge effect
Authors: Shi J. L. , Zhao X. J. , Zhang L. Y. , Xue X. L. , Guo Z. X. , Gao Y. F. , Li S. F.
Published: August 2017

Catalysis using gold nanoparticles supported on oxides has been under extensive investigation for many important application processes.
Ultrathin petal-like NiAl layered double oxide/sulfide composites as an advanced electrode for high-performance asymmetric supercapacitors
Authors: Li Lei , Hui Kwan San , Hui Kwun Nam , Cho Young-Rae
Published: August 2017

We develop a facile approach to synthesize ultrathin petal-like NiAl layered double oxide/sulfide (LDO/LDS) composites with high electrochemical activity using hydrothermal reaction followed by sulfidation process.
Temperature-assisted rapid nucleation: a facile method to optimize the film morphology for perovskite solar cells
Authors: Ren Ying-Ke , Ding Xi-Hong , Wu Ya-Han , Zhu Jun , Hayat Tasawar , Alsaedi Ahmed , Xu Ya-Feng , Li Zhao-Qian , Yang Shang-Feng , Dai Song-Yuan
Published: August 2017

The nucleation stage has an important influence on the lead halide perovskite film morphology, and therefore the solar cell performance.
In vitro and in vivo combined antibacterial effect of levofloxacin/silver co-loaded electrospun fibrous membranes
Authors: Song Ziliang , Ma Yongjie , Xia Guanggai , Wang Yao , Kapadia Wasim , Sun Zhiyong , Wu Wei , Gu Hongchen , Cui Wenguo , Huang Xinyu
Published: August 2017

The Lev@MSN@Ag–PLLA fibers provided an advanced synergistic antibacterial nanoplatform of low dosage for the treatment of drug-resistant bacterial infections.
Mesoporous silica nanoparticles with lactose-mediated targeting effect to deliver platinum(iv) prodrug for liver cancer therapy
Authors: Wang Zigui , Wu Peng , He Zhilong , He Hongyan , Rong Weifeng , Li Jizhen , Zhou Dongfang , Huang Yubin
Published: August 2017

A mesoporous silica nanoparticle system with a lactose-mediated targeting effect was demonstrated to deliver a platinum(iv) prodrug for liver cancer therapy.
Facile synthesis of core–shell structured magnetic covalent organic framework composite nanospheres for selective enrichment of peptides with simultaneous exclusion of proteins
Authors: Gao Chaohong , Lin Guo , Lei Zhixian , Zheng Qiong , Lin Jiashi , Lin Zian
Published: August 2017

Core–shell structured Fe3O4@TbBd composite nanospheres were synthesised using a facile approach and successfully applied for selective enrichment of peptides with simultaneous exclusion of proteins.
Self-assembly of donor–acceptor semiconducting polymers in solution thin films: a molecular dynamics simulation study
Authors: Yoneya Makoto , Matsuoka Satoshi , Tsutsumi Jun’ya , Hasegawa Tatsuo
Published: August 2017

The direction of π-stacking in a polymer thin film is crucially important in applications of semiconducting polymers.
Solution-processed metal oxide arrays using femtosecond laser ablation and annealing for thin-film transistors
Authors: Chen Cihai , Chen Gengxu , Yang Huihuang , Zhang Guocheng , Hu Daobin , Chen Huipeng , Guo Tailiang
Published: August 2017

A femtosecond laser is proposed to pattern and anneal a metal oxide layer for simple fabrication of metal oxide thin-film transistor arrays.
3D reactive inkjet printing of polydimethylsiloxane
Authors: Sturgess Craig , Tuck Christopher J. , Ashcroft Ian A. , Wildman Ricky D.
Published: August 2017

In this work a two-part polydimethylsiloxane (PDMS) ink has been developed, printed individually, and cured. The successful printing of PDMS has been used to fabricate complex 3D geometry for the first time using FRIJP.
Catalytic Deuteration of Aldehydes with D2O
Authors: Isbrandt Eric , Vandavasi Jaya , Zhang Wanying , Jamshidi Mohammad , Newman Stephen
Published: August 2017

A procedure is presented that enables the direct deuteration of the formyl C–H bond of aldehydes using D2O as the deuterium source and commercially available RuHCl(CO)(PPh3)3 as the catalyst. Up to 84% deuterium incorporation can be achieved in a single experiment. Multiple iterations can be carried out to further increase the deuteration.
Rapid Continuous Ruthenium-Catalysed Transfer Hydrogenation of Aromatic Nitriles to Primary Amines
Authors: Labes Ricardo , González-Calderón Davir , Battilocchio Claudio , Mateos Carlos , Cumming Graham , de Frutos Oscar , Rincón Juan , Ley Steven
Published: August 2017

A continuous flow method for the selective reduction of aromatic nitriles to the corresponding amine is reported. The method is based on a ruthenium-catalysed transfer-hydrogenation process, requires no additives, and uses isopropanol as both solvent and reducing agent. The process utilizes 1 mol% of the commercially available [Ru(p-cymene)Cl2]2, with a residence time of ca. 9 min, and a throughput of 50 mmol/h. The method was successfully applied to a range of aromatic nitriles providing the corresponding primary amines in good yields.
Finite slice analysis (FINA) of sliced and velocity mapped images on a Cartesian grid
Authors: Thompson J. O. F. , Amarasinghe C. , Foley C. D. , Rombes N. , Gao Z. , Vogels S. N. , van de Meerakker S. Y. T. , Suits A. G.
Published: August 2017

Although time-sliced imaging yields improved signal-to-noise and resolution compared with unsliced velocity mapped ion images, for finite slice widths as encountered in real experiments there is a loss of resolution and recovered intensities for the slow fragments. Recently, we reported a new approach that permits correction of these effects for an arbitrarily sliced distribution of a 3D charged particle cloud. This finite slice analysis (FinA) method utilizes basis functions that model the out-of-plane contribution of a given velocity component to the image for sequential subtraction in a spherical polar coordinate system. However, the original approach suffers from a slow processing time due to the weighting procedure needed to accurately model the out-of-plane projection of an anisotropic angular distribution. To overcome this issue we present a variant of the method in which the FinA approach is performed in a cylindrical coordinate system (Cartesian in the image plane) rather than a spherical polar coordinate system. Dubbed C-FinA, we show how this method is applied in much the same manner. We compare this variant to the polar FinA method and find that the processing time (of a 510 × 510 pixel image) in its most extreme case improves by a factor of 100. We also show that although the resulting velocity resolution is not quite as high as the polar version, this new approach shows superior resolution for fine structure in the differential cross sections. We demonstrate the method on a range of experimental and synthetic data at different effective slice widths.
Major role of process conditions in tuning the percolation behavior of polyvinylidene fluoride based polymer/metal composites
Authors: Panda Maheswar
Published: August 2017

The percolation behaviour of a polymer/metal composite (PMC), comprising polyvinylidene fluoride (PVDF)/nanocrystalline nickel (n-Ni) prepared by cold press and hot press methods, has been compared. Higher effective dielectric constants (εeff) with lower loss tangent (Tan δ) were observed for the cold pressed samples as compared to the hot pressed samples, which is attributed to better homogeneity and uniform distribution of n-Ni in the PVDF matrix. The percolation parameters [percolation threshold (fc) and critical exponents (s and s′)] are largely tuned due to the difference in process conditions. The non-universal fc, s, and s′ have been explained with the help of the percolation theory. PMC prepared though cold pressing would be a better candidate for static and low frequency dielectric applications.
Magnetic energy-based understanding the mechanism of magnetothermal anisotropy for macroscopically continuous film of assembled Fe3O4 nanoparticles
Authors: Fan Fengguo , Liu Jia , Sun Jianfei , Ma Siyu , Wang Peng , Gu Ning
Published: August 2017

The magnetothermal effect in two-dimensional assemblies of magnetic nanoparticles has played an increasingly important role in many biomedical applications. However, determining the mechanism of magnetothermal conversion of the assembled magnetic nanoparticles remains challenging. Here, a macroscopically continuous film assembled of Fe3O4 nanoparticles was used as a model for investigation utilizing both simulation and experimentation. The magnetic energy simulated by micro-magnetics can explain the phenomenon in which the assembled film of Fe3O4 nanoparticles showed the magnetothermal anisotropy in the presence of an alternating magnetic field. Here, the magnetic interaction between nanoparticles is proposed to play an important role in this process. Furthermore, it was discovered that there is a common behaviour of magnetic moments for the macroscopically continuous nanogranular film and a bulk magnet, which can be exploited to manipulate the magnetothermal effect of nanomaterials.
Power-functional network
Authors: Sun Yong , Kurths Jürgen , Zhan Meng
Published: August 2017

Power grids and their properties have been studied broadly in many aspects. In this paper, we propose a novel concept, power-flow-based power grid, as a typical power-functional network, based on the calculation of power flow distribution from power electrical engineering. We compare it with structural networks based on the shortest path length and effective networks based on the effective electrical distance and study the relationship among these three kinds of networks. We find that they have roughly positive correlations with each other, indicating that in general any close nodes in the topological structure are actually connected in function. However, we do observe some counter-examples that two close nodes in a structural network can have a long distance in a power-functional network, namely, two physically connected nodes can actually be separated in function. In addition, we find that power grids in the structural network tend to be heterogeneous, whereas those in the effective and power-functional networks tend to be homogeneous. These findings are expected to be significant not only for power grids but also for various other complex networks.
Unified Hall-Petch description of nano-grain nickel hardness, flow stress and strain rate sensitivity measurements
Authors: Armstrong R. W. , Balasubramanian N.
Published: August 2017

It is shown that: (i) nano-grain nickel flow stress and hardness data at ambient temperature follow a Hall-Petch (H-P) relation over a wide range of grain size; and (ii) accompanying flow stress and strain rate sensitivity measurements follow an analogous H-P relationship for the reciprocal “activation volume”, (1/v*) = (1/A*b) where A* is activation area. Higher temperature flow stress measurements show a greater than expected reduction both in the H-P kε and in v*. The results are connected with smaller nano-grain size (< ∼20 nm) measurements exhibiting grain size weakening behavior that extends to larger grain size when tested at very low imposed strain rates.
Communication: Surface-facilitated softening of ordinary and vapor-deposited glasses
Authors: Cubeta Ulyana , Bhattacharya Deepanjan , Sadtchenko Vlad
Published: August 2017

A common distinction between the ordinary glasses formed by melt cooling and the stable amorphous films formed by vapor deposition is the apparent mechanism of their devitrification. Using quasi-adiabatic, fast scanning calorimetry that is capable of heating rates in excess of 105 K s−1, we have investigated the softening kinetics of micrometer-scale, ordinary glass films of methylbenzene and 2-propanol. At the limit of high heating rates, the transformation mechanism of ordinary glasses is identical to that of their stable vapor-deposited counterparts. In both cases, softening is likely to begin at the sample surface and progress into its bulk via a transformation front. Furthermore, such a surface-facilitated mechanism complies with zero-order, Arrhenius rate law. The activation energy barriers for the softening transformation imply that the kinetics must be defined, at least in part, by the initial thermodynamic and structural state of the samples.
Quantitative analysis of non-equilibrium phase transition process by the catastrophe theory
Authors: Liang Xiao , Wu Jiu Hui , Zhong H. B.
Published: August 2017

Catastrophe theory is a highly generalized mathematical theory that summarizes the rules of non-equilibrium phase transition by several catastrophe models. This paper investigates the general non-equilibrium phase transition process quantitatively using catastrophe theory for the first time, to our knowledge. First, a new approach is proposed by combining the catastrophe theory with dimensionless analysis. Second, the new approach is applied to two classic examples: one is the turbulent phase transition and the other is the bottleneck effect of particle flow. For the turbulence phase transition process, the quantitative relationships are obtained. Comparing with Kolmogorov’s turbulent theory, the new method proposed in this paper is able to evaluate not only the complete turbulence condition but also the development of turbulence, and Kolmogorov’s turbulent theory is only a special case of our results by this new approach. For the particle flow bottleneck effect, the results obtained by this new method correspond with the empirical formulated results. Therefore, the proposed method can solve non-equilibrium phase transition process problems and has the potential to extend to fluid, aerodynamics, and so forth.
Synchronous acquisition of multi-channel signals by single-channel ADC based on square wave modulation
Authors: Yi Xiaoqing , Hao Liling , Jiang Fangfang , Xu Lisheng , Song Shaoxiu , Li Gang , Lin Ling
Published: August 2017

Synchronous acquisition of multi-channel biopotential signals, such as electrocardiograph (ECG) and electroencephalograph, has vital significance in health care and clinical diagnosis. In this paper, we proposed a new method which is using single channel ADC to acquire multi-channel biopotential signals modulated by square waves synchronously. In this method, a specific modulate and demodulate method has been investigated without complex signal processing schemes. For each channel, the sampling rate would not decline with the increase of the number of signal channels. More specifically, the signal-to-noise ratio of each channel is n times of the time-division method or an improvement of 3.01×log2n dB, where n represents the number of the signal channels. A numerical simulation shows the feasibility and validity of this method. Besides, a newly developed 8-lead ECG based on the new method has been introduced. These experiments illustrate that the method is practicable and thus is potential for low-cost medical monitors.
Dissipative particle dynamics study of phase separation in binary fluid mixtures in periodic and confined domains
Authors: Gidituri Harinadha , Anand D. Vijay , Vedantam Srikanth , Panchagnula Mahesh V.
Published: August 2017

We investigate the phase separation behavior of binary mixtures in two-dimensional periodic and confined domains using dissipative particle dynamics. Two canonical problems of fluid mechanics are considered for the confined domains: square cavity with no-slip walls and lid-driven cavity with one driven wall. The dynamics is studied for both weakly and strongly separating mixtures and different area fractions. The phase separation process is analyzed using the structure factor and the total interface length. The dynamics of phase separation in the square cavity and lid-driven cavity are observed to be significantly slower when compared to the dynamics in the periodic domain. The presence of the no-slip walls and the inertial effects significantly influences the separation dynamics. Finally, we show that the growth exponent for the strongly separating case is invariant to changes in the inter-species repulsion parameter.