bluuebunny/crossref_metadata_2025 huggingface dataset:
A Facile Green Synthetic Route for the Preparation of Highly Active γ-Al2O3 from Aluminum Foil Waste
Authors: Osman Ahmed I. , Abu-Dahrieh Jehad K. , McLaren Mathew , Laffir Fathima , Nockemann Peter , Rooney David
Published: June 2017

A novel green preparation route to prepare nano-mesoporous γ-Al2O3 from AlCl3.6H2O derived from aluminum foil waste and designated as ACFL550 is demonstrated, which showed higher surface area, larger pore volume, stronger acidity and higher surface area compared to γ-Al2O3 that is produced from the commercial AlCl3 precursor, AC550. The produced crystalline AlCl3.6H2O and Al(NO3)3.9H2O in the first stage of the preparation method were characterized by single-crystal XRD, giving two crystal structures, a trigonal (R-3c) and monoclinic (P21/c) structure, respectively. EDX analysis showed that ACFL550 had half the chlorine content (Cl%) relative to AC550, which makes ACFL550 a promising catalyst in acid-catalysed reactions. Pure and modified ACFL550 and AC550 were applied in acid-catalysed reactions, the dehydration of methanol to dimethyl ether and the total methane oxidation reactions, respectively. It was found that ACFL550 showed higher catalytic activity than AC550. This work opens doors for the preparation of highly active and well-structured nano-mesoporous alumina catalysts/supports from aluminum foil waste and demonstrates its application in acid-catalysed reactions.
Density-wave fronts on the brink of wet granular condensation
Authors: Zippelius Andreas , Huang Kai
Published: June 2017

Density-wave fronts in a vibrofluidized wet granular layer undergoing a gas-liquid-like transition are investigated experimentally. The threshold of the instability is governed by the amplitude of the vertical vibrations. Fronts, which are curved into a spiral shape, propagate coherently along the circular rim of the container with leading edges. They are stable beyond a critical distance from the container center. Based on an analysis of the emerging time and length scales, we propose a model for the pattern formation by considering the competition between the time scale for the condensation of wet granular particles from a gas-like state and that of the energy injection resisting this process.
Small-diameter hybrid vascular grafts composed of polycaprolactone and polydioxanone fibers
Authors: Pan Yiwa , Zhou Xin , Wei Yongzhen , Zhang Qiuying , Wang Ting , Zhu Meifeng , Li Wen , Huang Rui , Liu Ruming , Chen Jingrui , Fan Guanwei , Wang Kai , Kong Deling , Zhao Qiang
Published: June 2017

Electrospun polycaprolactone (PCL) vascular grafts showed good mechanical properties and patency. However, the slow degradation of PCL limited vascular regeneration in the graft. Polydioxanone (PDS) is a biodegradable polymer with high mechanical strength and moderate degradation rate in vivo. In this study, a small-diameter hybrid vascular graft was prepared by co-electrospinning PCL and PDS fibers. The incorporation of PDS improves mechanical properties, hydrophilicity of the hybrid grafts compared to PCL grafts. The in vitro/vivo degradation assay showed that PDS fibers completely degraded within 12 weeks, which resulted in the increased pore size of PCL/PDS grafts. The healing characteristics of the hybrid grafts were evaluated by implantation in rat abdominal aorta replacement model for 1 and 3 months. Color Doppler ultrasound demonstrated PCL/PDS grafts had good patency, and did not show aneurysmal dilatation. Immunofluorescence staining showed the coverage of endothelial cells (ECs) was significantly enhanced in PCL/PDS grafts due to the improved surface hydrophilicity. The degradation of PDS fibers provided extra space, which facilitated vascular smooth muscle regeneration within PCL/PDS grafts. These results suggest that the hybrid PCL/PDS graft may be a promising candidate for the small-diameter vascular grafts.
Interleukin-28B dampens airway inflammation through up-regulation of natural killer cell-derived IFN-γ
Authors: Yan Bailing , Chen Feng , Xu Lijun , Wang Yanshi , Wang Xuefu
Published: June 2017

Interleukin-28A (IL-28A) modulates CD11c+ dendritic cell (DC) function and promotes type 1T helper (Th1) differentiation, thus suppressing allergic airway diseases. However, the function of the IL-28A isoform IL-28B in these diseases remains largely unknown. In this study, we revealed a novel role of IL-28B in inducing type 1 immunity and protecting against ovalbumin (OVA)-induced allergic asthma in mice. IL-28B overexpression in wild-type mice promoted natural killer (NK) cell polarization in the lung, leading to the increased number of interferon (IFN)-γ-producing NK1 cells as well as Th1 differentiation. Importantly, IL-28B overexpression had no protective effect on OVA-induced asthma in IFN-γ-knockout (IFN-γ−/−) mice. These results demonstrate that IL-28B ameliorates experimental allergic asthma via enhancing NK cell polarization, which might be useful for prevention and treatment of allergic asthma.
Theta band transcranial alternating current stimulations modulates network behavior of dorsal anterior cingulate cortex
Authors: Onoda Keiichi , Kawagoe Toshikazu , Zheng Haixia , Yamaguchi Shuhei
Published: June 2017

Dorsal anterior cingulate cortex (dACC) is an important region in the processing of both cognition and affect. Recently, transcranial brain stimulation has been used to modulate cortical activity, but it is unclear whether this stimulation has a specific effect on dACC. Based on EEG evidence that frontal midline theta activity is generated in dACC, we hypothesized that transcranial alternating current stimulation (tACS) with theta band frequency would modulate neural networks including dACC. In this study, we examined the effects of theta band tACS on functional networks and emotional state. Graph theory analysis for resting-state functional MRI data revealed that theta band tACS decreased functional integration and hub capacity in dACC, and the attenuation of dACC network function was associated with emotional state change. Overall, these results demonstrate that theta band stimulation can modulate dACC.
Collision-induced activation: Towards industrially scalable approach to graphite nanoplatelets functionalization for superior polymer nanocomposites
Authors: Zabihi Omid , Ahmadi Mojtaba , Abdollahi Tahereh , Nikafshar Saeid , Naebe Minoo
Published: June 2017

Scale-up manufacturing of engineered graphene-like nanomaterials to deliver the industry needs for development of high-performance polymer nanocomposites still remains a challenge. Herein, we introduce a quick and cost-effective approach to scalable production of functionalized graphite nanoplatelets using “kitchen blender” approach and Diels-Alder chemistry. We have shown that, in a solvent-free process and through a cycloaddition mechanism, maleic anhydride can be grafted onto the edge-localized electron rich active sites of graphite nanoplatelets (GNP) resulting from high collision force, called “graphite collision-induced activation”. The mechanical impact was modelled by applying the point charge method using density functional theory (DFT). The functionalization of GNP with maleic anhydride (m-GNP) was characterized using various spectroscopy techniques. In the next step, we used a recyclable process to convert m-GNP to the highly-reactive GNP (f-GNP) which exhibits a strong affinity towards the epoxy polymer matrix. It was found that at a low content of f-GNP e.g., 0.5 wt%, significant enhancements of ~54% and ~65% in tensile and flexural strengths of epoxy nanocomposite can be achieved, respectively. It is believed that this new protocol for functionalization of graphene nanomaterials will pave the way for relatively simple industrial scale fabrication of high performance graphene based nanocomposites.
Improving Photocatalytic Performance from Bi2WO6@MoS2/graphene Hybrids via Gradual Charge Transferred Pathway
Authors: Liu Ming , Xue Xin , Yu Shansheng , Wang Xiaoyi , Hu Xiaoying , Tian Hongwei , Chen Hong , Zheng Weitao
Published: June 2017

The charge transfer from the main catalyst to the cocatalyst is a key factor to enhance catalytic activity for photocatalytic nanocomposite materials. In order to enhance the charge transfer between Bi2WO6 and graphene, we inlet MoS2 as a “stepping-stone” into Bi2WO6 and graphene. Here, we report an effective strategy to synthesize ternary Bi2WO6@MoS2/graphene nanocomposite photocatalyst by a facile two-step hydrothermal method, which is afforded by assembling two cocatalysts, graphene and MoS2, into the Bi2WO6 matrix with a nanoparticle morphology as a visible light harvester. Compared with Bi2WO6/graphene, Bi2WO6/MoS2 and pure Bi2WO6, the Bi2WO6@MoS2/graphene ternary composites exhibit superior photocatalytic activity owing to an enhanced charge carrier separation via gradual charge transferred pathway. This work indicates a promising cocatalyst strategy for designing a more efficient graphene based semiconductor photocatalyst toward degradation of organic pollutants.
De novo assembly and annotation of the Zhe-Maidong (Ophiopogon japonicus (L.f.) Ker-Gawl) transcriptome in different growth stages
Authors: Liu Huijun , Wang Ying , Wang Tingzhang , Ying Xuhui , Wu Rongrong , Chen Huan
Published: June 2017

Zhe-Maidong (Ophiopogon japonicus (L.f.) Ker-Gawl) is a traditional medicinal herb in the family Liliaceae that has significant pharmacological effects on immunity and cardiovascular disease. In this study, three different growth stages of Zhe-Maidong were investigated using RNA-seq, and a total of 16.4 Gb of raw data was obtained. After filtering and assembling, 96,738 unigenes with an average length of 605.3 bp were ultimately generated. A total of 77,300 unigenes were annotated using information from five databases, including the NT, NR, SwissProt, Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) databases. Additionally, the mechanisms of flavonoid, saponin and polysaccharide biosynthesis and of accumulation at different stages of tuber development were also characterized. From the first to third years, the contents of flavonoids, saponins and polysaccharides all increased, whereas the expression levels of related genes decreased in the flavonoid and saponin pathways and first increased and then decreased in the polysaccharide pathway. The results of this study provide the most comprehensive expressed sequence resource for Zhe-Maidong and will expand the available O. japonicus gene library and facilitate further genome-wide research and analyses of this species.
Luminescent turn-on detection of Hg(II) via the quenching of an iridium(III) complex by Hg(II)-mediated silver nanoparticles
Authors: Liu Jinshui , Vellaisamy Kasipandi , Yang Guanjun , Leung Chung-Hang , Ma Dik-Lung
Published: June 2017

A novel luminescent turn-on detection method for Hg(II) was developed. The method was based on the silver nanoparticle (AgNP)-mediated quenching of Ir(III) complex 1. The addition of Hg(II) ions causes the luminescence of complex 1 to be recovered due to the oxidation of AgNPs by Hg(II) ions to form Ag(I) and Ag/Hg amalgam. The luminescence intensity of 1 increased in accord with an increased Hg(II) concentration ranging from 0 nM to 180 nM, with the detection limit of 5 nM. This approach offers an innovative method for the quantification of Hg(II).
miR-200c-driven Mesenchymal-To-Epithelial Transition is a Therapeutic Target in Uterine Carcinosarcomas
Authors: Tseng Jill H. , Bisogna Maria , Hoang Lien N. , Olvera Narciso , Rodriguez-Aguayo Cristian , Lopez-Berestein Gabriel , Sood Anil K. , Levine Douglas A. , Jelinic Petar
Published: June 2017

Uterine carcinosarcomas (UCSs) are highly aggressive malignancies associated with poor prognoses and limited treatment options. These tumors are hypothesized to develop from the endometrial adenocarcinoma (EAC) through epithelial-mesenchymal transition (EMT). We test this long-standing hypothesis by depleting miR-200, a family of microRNAs critical for EMT, in EAC cell lines. Our data suggest that UCSs do not develop from EACs via EMT. Clinically more relevant, we show that miR-200 expression in UCS cells induces a robust mesenchymal-epithelial transition (MET). Using in vitro and murine xenograft models, we demonstrate decreased growth and aggressiveness of miR-200-overexpressing UCS cell lines. Whole transcriptome analysis confirmed changes consistent with an MET and also revealed changes in angiogenic genes expression. Finally, by treatment of UCS-xenografted mice with miR-200c incorporated in DOPC nanoliposomes, we demonstrate anti-tumor activities. These findings suggest that ectopic miR-200 expression using advanced microRNA therapeutics may be a potential treatment approach for patients with UCS.
A data driven approach to understanding the organization of high-level visual cortex
Authors: Watson David M. , Andrews Timothy J. , Hartley Tom
Published: June 2017

The neural representation in scene-selective regions of human visual cortex, such as the PPA, has been linked to the semantic and categorical properties of the images. However, the extent to which patterns of neural response in these regions reflect more fundamental organizing principles is not yet clear. Existing studies generally employ stimulus conditions chosen by the experimenter, potentially obscuring the contribution of more basic stimulus dimensions. To address this issue, we used a data-driven approach to describe a large database of scenes (>100,000 images) in terms of their visual properties (orientation, spatial frequency, spatial location). K-means clustering was then used to select images from distinct regions of this feature space. Images in each cluster did not correspond to typical scene categories. Nevertheless, they elicited distinct patterns of neural response in the PPA. Moreover, the similarity of the neural response to different clusters in the PPA could be predicted by the similarity in their image properties. Interestingly, the neural response in the PPA was also predicted by perceptual responses to the scenes, but not by their semantic properties. These findings provide an image-based explanation for the emergence of higher-level representations in scene-selective regions of the human brain.
Dispersity effects in polymer self-assemblies: a matter of hierarchical control
Authors: Doncom Kay E. B. , Blackman Lewis D. , Wright Daniel B. , Gibson Matthew I. , O’Reilly Rachel K.
Published: June 2017

Advanced applications of polymeric self-assembled structures require a stringent degree of control over such aspects as functionality location, morphology and size of the resulting assemblies.
Using porcine bone marrow to analyze fenproporex and its metabolite amphetamine for forensic toxicological purposes: method development and validation
Authors: Santos Elisangela de S. , Spinelli Eliani , de Aquino Neto Francisco R. , Rodrigues Silvana V.
Published: June 2017

A new method for bone cleaning and bone marrow pretreatment was developed for application in forensic toxicological routine.
Copper(i)-catalyzed asymmetric exo-selective [3+2] cycloaddition of azomethine ylides with β-trifluoromethyl β,β-disubstituted enones
Authors: Xu Bing , Zhang Zhan-Ming , Liu Bing , Xu Shan , Zhou Lu-Jia , Zhang Junliang
Published: June 2017

A copper-catalyzed asymmetricexo-selective dipolar cycloaddition of β-trifluoromethyl β,β-disubstituted enones with azomethine ylides was developed, which provides an efficient access to valuable pyrrolidines bearing a trifluoromethylated all-carbon quaternary stereocenter.
Triplet sensitization by perovskite nanocrystals for photon upconversion
Authors: Mase Kazuma , Okumura Keisuke , Yanai Nobuhiro , Kimizuka Nobuo
Published: June 2017

The ability of 3D metal-halide perovskites to sensitize organic excited triplets was unveiled and utilized for photon upconversion at low excitation intensity.
Hetero-epitaxial growth control of single-crystalline anatase TiO2 nanosheets predominantly exposing the {001} facet on oriented crystalline substrates
Authors: Maitani M. M. , Tanaka K. , Satou H. , Oshima T. , Ohtomo A. , Wada Y.
Published: June 2017

Well-controlled TiO2 nanosheet growth was achieved by applying a proper crystalline orientation of substrates as a hetero-epitaxial growth strategy.
Isomerization versus dissociation of phenylalanylglycyltryptophan radical cations
Authors: Mu Xiaoyan , Lau Justin Kai-Chi , Lai Cheuk-Kuen , Siu K. W. Michael , Hopkinson Alan C. , Chu Ivan K.
Published: June 2017

Four isomers of the radical cation of tripeptide phenylalanylglycyltryptophan, in which the initial location of the radical center is well defined, have been isolated and their collision-induced dissociation (CID) spectra examined.
Low temperature photoluminescence properties of CsPbBr3 quantum dots embedded in glasses
Authors: Ai Bing , Liu Chao , Deng Zhao , Wang Jing , Han Jianjun , Zhao Xiujian
Published: June 2017

Size dependence of exciton activation energy, electron–phonon coupling strength, and thermal expansion of the bandgap of CsPbBr3 QDs were studied.
Low temperature synthesis study of metal–organic framework CPO-27: investigating metal, solvent and base effects down to −78 °C
Authors: Vornholt Simon M. , Henkelis Susan E. , Morris Russell E.
Published: June 2017

CPO-27-M (M = Co, Mg, Ni, Zn) metal–organic frameworks have been successfully synthesized at temperatures down to −78 °C in a range of solvent systems and their crystallinity and morphology analyzed by powder X-ray diffraction and scanning electron microscopy.
Syntheses and post-functionalization of tri-substituted polyalkoxohexavanadates containing tris(alkoxo) ligands
Authors: Hu Xunliang , Xiao Zicheng , Huang Bo , Hu Xiaokang , Cheng Min , Lin Xinjun , Wu Pingfan , Wei Yongge
Published: June 2017

A new synthetic approach to tri-substituted trisalkoxy-hexavanadates was established which opens a new way to synthesize mixed-valence polyoxovanadate hybrids.
Temperature dependent NIR emitting lanthanide-PMO/silica hybrid materials
Authors: Kaczmarek Anna M. , Esquivel Dolores , Ouwehand Judith , Van Der Voort Pascal , Romero-Salguero Francisco J. , Van Deun Rik
Published: June 2017

A mesoporous silica and a periodic mesoporous organosilica functionalized with dipyridyl-pyridazine were grafted with Nd3+, Er3+, and Yb3+ complexes to obtain hybrid NIR emitting materials.
Hydrogen storage using a hot pressure swing reactor
Authors: Jorschick H. , Preuster P. , Dürr S. , Seidel A. , Müller K. , Bösmann A. , Wasserscheid P.
Published: June 2017

Our contribution demonstrates that hydrogen storage in stationary Liquid Organic Hydrogen Carrier (LOHC) systems becomes much simpler and significantly more efficient if both, the LOHC hydrogenation and the LOHC dehydrogenation reaction are carried out in the same reactor using the same catalyst.
Droplet control technologies for microfluidic high throughput screening (μHTS)
Authors: Sesen Muhsincan , Alan Tuncay , Neild Adrian
Published: June 2017

This review analyses state-of-the-art droplet control technologies that exhibit potential to be used in the new generation of screening devices.
Pools of cadmium in Chlamydomonas reinhardtii revealed by chemical imaging and XAS spectroscopy
Authors: Penen F. , Isaure M. P. , Dobritzsch D. , Bertalan I. , Castillo-Michel H. , Proux O. , Gontier E. , Le Coustumer P. , Schaumlöffel D.
Published: June 2017

The green micro-alga Chlamydomonas reinhardtii sequesters Cd as vacuolar Cd polyphosphate granules and Cd–thiol, diffused in the whole cell.
Cellular copper homeostasis: current concepts on its interplay with glutathione homeostasis and its implication in physiology and human diseases
Authors: Bhattacharjee Ashima , Chakraborty Kaustav , Shukla Aditya
Published: June 2017

Copper is a trace element essential for almost all living organisms, however the level of intracellular copper needs to be tightly regulated. This review explores the existing literature on the role of glutathione in regulating cellular copper homeostasis.
Microhydration of a benzoic acid molecule and its dissociation
Authors: Krishnakumar Parvathi , Maity Dilip Kumar
Published: June 2017

C6H5COOH requires at least eight H2O molecules for its dissociation. A linear correlation is observed between pKa and nH2O; an unknown pKa can thus be predicted.
Carbon nanowalls: a new versatile graphene based interface for the laser desorption/ionization-mass spectrometry detection of small compounds in real samples
Authors: Hosu I. S. , Sobaszek M. , Ficek M. , Bogdanowicz R. , Drobecq H. , Boussekey L. , Barras A. , Melnyk O. , Boukherroub R. , Coffinier Y.
Published: June 2017

Carbon nanowalls for small compounds detection by laser desorption/ionization mass spectrometry.
Multi-layer transfer and lamination (MTL) process assisted by a high-pressure air jet for highly efficient solution-processed polymer light emitting diodes
Authors: Hasan Syed Azkar Ul , Youn Hongseok
Published: June 2017

This research reports an air-jet assisted multi-layer transfer and lamination process for efficient polymer light-emitting diodes.
Direct visualization of fluid dynamics in sub-10 nm nanochannels
Authors: Li Huawei , Zhong Junjie , Pang Yuanjie , Zandavi Seyed Hadi , Persad Aaron Harrinarine , Xu Yi , Mostowfi Farshid , Sinton David
Published: June 2017

A novel nanofluidic-fabrication method is developed here to directly reveal fluid behavior at sub-10 nm scales.
Crumpled sheets of reduced graphene oxide as a highly sensitive, robust and versatile strain/pressure sensor
Authors: Kundu Subhajit , Sriramdas Rammohan , Rafsanjani Amin Kazi , Bid Aveek , Pratap Rudra , Ravishankar Narayanan
Published: June 2017

Taped crumpled rGO can be used to detect a wide variety of strain and pressure with high sensitivity and extreme robustness.
Nanoparticle delivery of curcumin induces cellular hypoxia and ROS-mediated apoptosis via modulation of Bcl-2/Bax in human neuroblastoma
Authors: Kalashnikova Irina , Mazar Joseph , Neal Craig J. , Rosado Amy L. , Das Soumen , Westmoreland Tamarah J. , Seal Sudipta
Published: June 2017

In this study, several formulations of nanoceria and dextran-nanoceria with curcumin, each demonstrated to have anti-cancer properties, were synthesized and applied as treatment for human childhood neuroblastoma.
Gold-loaded nanoporous iron oxide nanocubes: a novel dispersible capture agent for tumor-associated autoantibody analysis in serum
Authors: Yadav Sharda , Masud Mostafa Kamal , Islam Md. Nazmul , Gopalan Vinod , Lam Alfred King-yin , Tanaka Shunsuke , Nguyen Nam-Trung , Hossain Md. Shahriar Al , Li Cuiling , Yamauchi Md. Yusuke , Shiddiky Muhammad J. A.
Published: June 2017

An electrochemical and colorimetric method for detecting autoantibodies using gold-loaded nanoporous Fe2O3nanocubes as capture agents is reported for the first time.
A novel artificial synapse with dual modes using bilayer graphene as the bottom electrode
Authors: Tian He , Mi Wentian , Zhao Haiming , Mohammad Mohammad Ali , Yang Yi , Chiu Po-Wen , Ren Tian-Ling
Published: June 2017

We report a single device operated in two modes with enough potentiation states to mimic the synaptic learning behaviors.
Linear and orthogonal peptide templating of silicified protein fibres
Authors: Bella Angelo , Ray Santanu , Ryadnov Maxim G.
Published: June 2017

Silica-specific motifs templated into fibre-forming peptides effectively silicify protein fibres.
Stereodivergent synthesis of all the four stereoisomers of antidepressant reboxetine
Authors: Liu Cheng , Lin Zhi-Wei , Zhou Zhao-Hui , Chen Hong-Bin
Published: June 2017

Four stereoisomers of antidepressant reboxetine were divergently prepared via Cu-catalyzed diastereoselective nitroaldol reactions.
Synthesis and characterization of near-infrared-emitting CdHgTe/CdS/ZnS quantum dots capped by N-acetyl-l-cysteine for in vitro and in vivo imaging
Authors: Liu Xijing , Zhou Peijiang , Zhan Hongju , Liu Hongyu , Zhang Jianwei , Zhao Yanan
Published: June 2017

In this article, highly photoluminescent near-infrared (NIR)-emitting quantum dots (QDs) were directly synthesized in water by a fast, inexpensive and facile method.
Plasma metabolic profiling and novel metabolite biomarkers for diagnosing prostate cancer
Authors: Zhao Yunbo , Lv Hongmei , Qiu Shi , Gao Lijuan , Ai Huazhang
Published: June 2017

Prostate cancer (PCa) is the second leading cause of cancer death among men and associated with profound metabolic changes.
Synthesis and catalytic activity of palladium supported on heteroatom doped single-wall carbon nanohorns
Authors: Tan Xueyou , Wu Xiaohui , Hu Ziqi , Ma Ding , Shi Zujin
Published: June 2017

The dehydrogenation of indoline to indole is a vital chemical transformation because of the versatile application of indole as an intermediate in the synthesis of medicines or fine chemicals.
Concentration gradient generation methods based on microfluidic systems
Authors: Wang Xiang , Liu Zhaomiao , Pang Yan
Published: June 2017

Various concentration gradient generation methods based on microfluidic systems are summarized in this paper.
Preparation of up-converting nano-biphasic calcium phosphate
Authors: Sobierajska Paulina , Zawisza Katarzyna , Kowalski Robert M. , Renaudin Guillaume , Nedelec Jean-Marie , Zienkiewicz Jan , Wiglusz Rafal J.
Published: June 2017

The nano-biphasic calcium phosphate co-doped with 1 mol% Er3+ and 5 mol% Yb3+ ions was prepared using modified Pechini's technique.
First-principles investigation of a β-MnO2 and graphene composite as a promising cathode material for rechargeable Li-ion batteries
Authors: Zhang Renhui , Zhao Juan , Guo Lei , Qin Hangdao , Shi Wei , Lu Zhibin
Published: June 2017

In this investigation, we studied the effect of the synergistic mechanism on the stability and the electronic and Li diffusion performance of a β-MnO2 and graphene composite.
Amino acid-modified graphene oxide magnetic nanocomposite for the magnetic separation of proteins
Authors: Yan Min , Liang Qionglin , Wan Wei , Han Qiang , Tan Siyuan , Ding Mingyu
Published: June 2017

A novel amino acid-modified graphene oxide magnetic nanocomposite was synthesized and successfully applied to the magnetic separation of proteins.
Multi-scale modeling of an amine sorbent fluidized bed adsorber with dynamic discrepancy reduced modeling
Authors: Li Kuijun , Mahapatra Priyadarshi , Bhat K. Sham , Miller David C. , Mebane David S.
Published: June 2017

Inaccuracy in chemical kinetic models is a problem that affects the reliability of large-scale process models.
Macrocycle-assisted synthesis of non-stoichiometric silver(i) halide electrocatalysts for efficient chlorine evolution reaction
Authors: Zhang Qiong-You , He Xin , Zhao Liang
Published: June 2017

A macrocycle-assisted synthesis of non-stoichiometric silver halide nanoparticles and their electrocatalytic performance for the chlorine evolution reaction are reported.
A nickel nanocatalyst within a h-BN shell for enhanced hydrogen oxidation reactions
Authors: Gao Lijun , Wang Ying , Li Haobo , Li Qihao , Ta Na , Zhuang Lin , Fu Qiang , Bao Xinhe
Published: June 2017

The confinement effect of h-BN shells helps to maintain active metallic Ni cores and strengthen the HOR processes occurring at h-BN/Ni interfaces.
Modelling critical Casimir force induced self-assembly experiments on patchy colloidal dumbbells
Authors: Newton Arthur C. , Nguyen T. Anh , Veen Sandra J. , Kraft Daniela J. , Schall Peter , Bolhuis Peter G.
Published: June 2017

Anisotropic colloidal dumbbell particles suspended in a binary liquid mixture interact via critical Casimir forces, which can be modeled with effective potentials by viewing the particle as a rigid construct composed of spheres.
Organic–inorganic macroion coacervate complexation
Authors: Jing Benxin , Qiu Jie , Zhu Yingxi
Published: June 2017

Biphasic coacervate complexes resulting from ion pairing can be formed with zwitterionic polymers and inorganic multivalent macroions in salted aqueous solution.
Continuous microfiber drawing by interfacial charge complexation between anionic cellulose nanofibers and cationic chitosan
Authors: Grande Rafael , Trovatti Eliane , Carvalho Antonio J. F. , Gandini Alessandro
Published: June 2017

This study describes a novel process of drawing fibers generated by the electrostatic complexation of negatively charged nanocellulose fibers with positively charged chitosan macromolecules.
Li4Ti5O12–TiO2/MoO2 nanoclusters-embedded into carbon nanosheets core/shell porous superstructures boost lithium ion storage
Authors: Yang Yong , Wang Shitong , Luo Mingchuan , Wang Wei , Lv Fan , Tang Zilong , Guo Shaojun
Published: June 2017

Ti-based materials are well-known to be good anode materials for lithium ion batteries because of their negligible volume change during the charge/discharge process.
A self-forming dual-phase membrane for high-temperature electrochemical CO2 capture
Authors: Zhang Peng , Tong Jingjing , Huang Kevin
Published: June 2017

We report here a dual-phase mixed CO32−- and e−-conducting CO2 capture membrane self-formed at high temperatures from NiO and molten carbonate.
Quantum dot sensitized solar cells with efficiency over 12% based on tetraethyl orthosilicate additive in polysulfide electrolyte
Authors: Yu Juan , Wang Wenran , Pan Zhenxiao , Du Jun , Ren Zhenwei , Xue Weinan , Zhong Xinhua
Published: June 2017

Benefiting from the suppressed charge recombination occurring at the photoanode/electrolyte interfaces with the introduction of TEOS additive in the polysulfide electrolyte, a remarkable PCE of over 12% was obtained for ZCISe QDSCs.
Amphiphilic conjugated molecules with multifunctional properties as efficient blue emitters and cathode interlayers for inkjet printed organic light-emitting diodes
Authors: Wang Mengyi , Zhou Lu , Yu Mengjie , Liu Chengfang , Chu Shuangquan , Pan Jinqiang , Lai Wen-Yong , Huang Wei
Published: June 2017

Amphiphilic conjugated molecules with multifunctional properties as blue emitters and electron-injection layers were developed for inkjet-printed OLEDs.
Tuning molecule diffusion to control the phase separation of the p-DTS(FBTTh2)2/EP-PDI blend system via thermal annealing
Authors: Liang Qiuju , Han Jie , Song Chunpeng , Wang Zaiyu , Xin Jingming , Yu Xinhong , Xie Zhiyuan , Ma Wei , Liu Jiangang , Han Yanchun
Published: June 2017

A bi-continuous phase separation structure of the p-DTS(FBTTh2)2/EP-PDI blend system was induced by crystallization of p-DTS(FBTTh2)2 confining the EP-PDI molecule diffusion.
Advanced encryption based on fluorescence quenching of ZnO nanoparticles
Authors: Liu Kai-Kai , Shan Chong-Xin , He Gao-Hang , Wang Ruo-Qiu , Sun Zhi-Peng , Liu Quan , Dong Lin , Shen De-Zhen
Published: June 2017

This paper presents a simple strategy for advanced encryption based on the fluorescence quenching of ZnO nanoparticles (NPs) by acid and copper ions.
Necessary conditions of first-order for an optimal boundary control problem for viscous damage processes in 2D
Authors: Farshbaf-Shaker M. Hassan , Heinemann Christian
Published: June 2017

Controlling the growth of material damage is an important engineering task with plenty of real world applications. In this paper we approach this topic from the mathematical point of view by investigating an optimal boundary control problem for a damage phase-field model for viscoelastic media. We consider non-homogeneous Neumann data for the displacement field which describe external boundary forces and act as control variables. The underlying hyberbolic-parabolic PDE system for the state variables exhibit highly nonlinear terms which emerge in context with damage processes. The cost functional is of tracking type, and constraints for the control variable are prescribed. Based on recent results from [M.H. Farshbaf−Shaker and C. Heinemann, Math. Models Methods Appl. Sci. 25 (2015) 2749–2793], where global-in-time well-posedness of strong solutions to the lower level problem and existence of optimal controls of the upper level problem have been established, we show in this contribution differentiability of the control-to-state mapping, well-posedness of the linearization and existence of solutions of the adjoint state system. Due to the highly nonlinear nature of the state system which has by our knowledge not been considered for optimal control problems in the literature, we present a very weak formulation and estimation techniques of the associated adjoint system. For mathematical reasons the analysis is restricted here to the two-dimensional case. We conclude our results with first-order necessary optimality conditions in terms of a variational inequality together with PDEs for the state and adjoint state system.
On the approximate boundary synchronization for a coupled system of wave equations: direct and indirect controls
Authors: Li Tatsien , Rao Bopeng
Published: June 2017

The approximate boundary synchronization by p-groups (p ≥ 1) in the pinning sense has been introduced in [T.-T. Li and B. Rao, Asymp. Anal. 86 (2014) 199–224], in this paper the authors give a new and more natural definition on the approximate boundary synchronization by p-groups in the consensus sense for a coupled system of N wave equations with Dirichlet boundary controls. We show that the approximate boundary synchronization by p-groups in the consensus sense is equivalent to that in the pinning sense. Moreover, by means of a corresponding Kalman’s criterion, the concept of the number of total (direct and indirect) controls is introduced. It turns out that in the case that the minimal number of total controls is equal to (N − p), the existence of the approximately synchronizable state by p-groups as well as the necessity of the strong Cp-compatibility condition are the consequence of the approximate boundary synchronization by p-groups, while, in the opposite case, the approximate boundary synchronization by p-groups could imply some non-expected additional properties, called the induced approximate boundary synchronization.
Les appareils orthodontiques collés doivent-ils être déposés systématiquement avant un examen d’imagerie par résonance magnétique (IRM) ?
Authors: Beau Aurélien , Bossard Denis , Gebeile-Chauty Sarah
Published: June 2017

Objectifs : Les appareils orthodontiques sont souvent déposés avant les examens d’imagerie par résonance magnétique (IRM) car ils sont réputés pour produire des artefacts. Le but de cette étude était de trouver les indications exactes de dépose de différents types d’appareils fixes lors de la visualisation de quatre zones spécifiques de la tête et du cou. Matériel et méthode : 60 patients nécessitant un examen IRM de la tête pour raisons médicales se sont portés volontaires pour cette étude. Un appareil fixe parmi quatre types d’appareils (boîtiers en acier inoxydable, boîtiers en titane, boîtiers en céramique à gorge métallique et fils de contention en acier inoxydable) a été assigné à chaque patient. Chaque patient a subi deux examens à 1,5 T : avec un «échantillon de cire vide» et avec un échantillon de cire contenant l’appareil. Les arcs n’ont pas été étudiés car leur dépose avant un examen est aisée. Deux radiologues ont évalué les images de chaque patient pour chacune des zones anatomiques étudiées : sinus maxillaire, cavité buccale, articulations temporo-mandibulaires et fosse cérébrale postérieure. Résultats : Les boîtiers en acier inoxydable ont rendu la totalité des images ininterprétables (100 %). Les boîtiers en titane, les boîtiers en céramique à gorge métallique et les fils de contention en acier inoxydable ont causé des artefacts seulement au niveau de la cavité buccale (pour 20 %, 16,65 % et 86,65 % des sujets). Conclusion : Ces résultats montrent que les boîtiers en céramique à gorge métallique et les boîtiers en titane ne doivent pas toujours être déposés avant un examen d’IRM de la tête et du cou, selon la zone anatomique étudiée. Les fils de contention métalliques ne devraient être déposés que si la cavité buccale est étudiée. Les boîtiers en acier inoxydable devraient être systématiquement déposés avant un examen d’IRM de la tête et du cou.
Calendrier de la greffe osseuse et séquences d’éruption canine dans les cas de fentes labio-alvéolo-palatines : revue systématique
Authors: Elhaddaoui Rajae , Bahije Loubna , Zaoui Fatima , Rerhrhaye Wiam
Published: June 2017

Introduction : La greffe osseuse alvéolaire (GOA) constitue une phase chirurgicale importante dans le traitement des fentes labio-alvéolo-palatines (FLAP). Elle permet d’éliminer les fentes oro-nasales, de rétablir la continuité du maxillaire et de fournir un support parodontal optimal pour l’éruption spontanée des canines permanentes adjacentes à la fente. Le but de la présente revue systématique était de déterminer le calendrier idéal de la GOA qui permettrait d’atteindre ces objectifs. Matériels et méthodes : Les bases de données consultées étaient MEDLINE, Embase et EBSCOhost, en utilisant les mots-clés présents dans le MeSH : [cleft lip and palate] and [alveolar bone graft] and [tooth eruption]. Les critères de sélection ont inclus les études rétrospectives, prospectives et les méta-analyses depuis janvier 2005 et dont le texte intégral est disponible. Résultats : Parmi 105 références, 9 articles répondaient à nos critères de sélection. La GOA réalisée avant ou juste après l’éruption des canines permanentes adjacentes à la fente, entre 8 et 12 ans, présente le meilleur taux de succès de la greffe (71 % à 89 %) et le risque d’inclusion canine le plus faible (5 à 19 %). Conclusion : D’après les données de la littérature, le calendrier optimal de la GOA garant de meilleurs résultats est situé entre 8 et 12 ans, avant ou juste après l’éruption des canines permanentes adjacentes à la fente. Cependant, ce calendrier pourrait être modifié par l’équipe pluridisciplinaire en fonction des priorités, particulièrement esthétiques, définies pour chaque enfant.
Thieme Chemistry Journals Awardees – Where Are They Now? New Reaction Mode in Carboxylate-Directed C–H Functionalizations: Carboxylates as Deciduous Directing Groups
Authors: Gooßen Lukas , Biafora Agostino
Published: June 2017

The widely available carboxylate groups have recently emerged as advantageous leaving groups for regioselective ipso substitutions and directing groups for ortho-C–H functionalizations in transition-metal catalysis. In the latter reactions, they can subsequently be transformed into a wealth of functionalities through decarboxylative ipso substitutions, or tracelessly removed through protodecarboxylation. The latest development in this field are reactions in which carboxylic acids function as deciduous directing groups, unlocking their unique potential for achieving regioselective monofunctionalization of a single ortho-C–H position. A deciduous directing group stays in place just long enough to direct an incoming reagent into a specific position and is then shed tracelessly as soon as the new C–C or C–heteroatom bond has formed. This inherently prevents unwanted double functionalization. This account discusses characteristics and synthetic opportunities of reactions with carboxylates as deciduous directing groups.
Heparin-Induced Thrombocytopenia in Cardiac Surgery Patients
Authors: Pishko Allyson , Cuker Adam
Published: June 2017

Heparin-induced thrombocytopenia (HIT) is a prothrombotic disorder mediated by platelet-activating antibodies that target complexes of platelet factor 4 (PF4) and heparin. Because nearly all patients undergoing cardiopulmonary bypass (CPB) are exposed to heparin and experience a postoperative platelet count fall, it is not surprising that HIT is commonly suspected in this population. However, the incidence of HIT in cardiac surgery patients who receive intraoperative and postoperative unfractionated heparin is much lower than the incidence of suspected HIT, being approximately 1 to 2%. Clinical diagnosis may therefore be particularly challenging because of the need to distinguish the common platelet count fall associated with CPB and surgery from the much less common platelet count fall associated with HIT. A biphasic platelet count pattern is characteristic of HIT in this setting. Laboratory diagnosis is also difficult because of the high frequency of anti-PF4/heparin antibody seropositivity after cardiac surgery in patients without HIT. A unique aspect of management in the cardiac surgery setting is selecting an anticoagulant for intraoperative use in patients with a history of HIT who require cardiac surgery. In this article, we review the epidemiology, clinical diagnosis, and laboratory diagnosis of HIT in cardiac surgery patients and present a conceptual framework for selecting intraoperative anticoagulation in patients with a history of HIT.
Thromboprophylaxis in Cancer Patients Undergoing Surgery
Authors: Htun Kay , Lee Agnes
Published: June 2017

Venous thromboembolism (VTE) is a common, complex, and costly complication in cancer patients undergoing surgery. VTE risk varies with types of cancer surgery as well as patient-, cancer-, and treatment-associated factors. Current VTE preventive measures with pharmacological, mechanical, and combination of both are shown to be effective. Clinical questions remain and more research is needed, focusing on the role of thromboprophylaxis for minimally invasive surgery and major cancer surgery other than abdominal/pelvic surgery, as well as optimal duration of thromboprophylaxis in high-risk patients. Routine individual VTE risk assessment and better adherence to thromboprophylaxis guidelines may offer improved outcomes in cancer patients undergoing surgery. A summary of currently available evidence and consensus guidelines on the primary prevention of VTE in cancer patients undergoing various types of surgery is presented here.
Hemostasis in Pediatric Cardiac Surgery
Authors: Ravn Hanne
Published: June 2017

The majority of children undergoing pediatric cardiac surgery with cardiopulmonary bypass require transfusion of blood products. The management of hemostasis in the pediatric population is challenging, partly due to pronounced alterations in several hemostatic parameters following cardiopulmonary bypass. Despite these marked changes being seen quite often, they are not necessarily an indication for hemostatic interventions. This review summarizes and discusses the available monitoring tests of hemostatic impairment during and following pediatric cardiac surgery. It covers standard laboratory tests, viscoelastic test, evaluation of platelet function, fibrinolysis, and the management of anticoagulation including its reversal. Interpretation of hemostatic measurements is done with due respect to the concept of developmental hemostasis, but also cyanotic heart disease, which are considered by some to be associated with an increased risk of bleeding.
Comparative Evaluation of the Embrasure Wire versus Arch Bar Maxillomandibular Fixation in the Management of Mandibular Fractures: Are Arch Bars Replaceable?
Authors: Rastogi Sanjay , Ahmed Tousif , Giri Kolli , Dandriyal Ramakant , Niranjana Prasad Indra B. , Joshi Ankur , Choudhury Shouvik , Mall Sunil
Published: June 2017

The aim of this prospective study was to appraise the role of embrasure wiring in the treatment of mandibular fractures over the arch bar as adjunctive techniques of maxillomandibular fixation (MMF). This study was conducted on 40 patients who were surgically treated for mandibular fractures with accessory use of MMF (embrasure: group A vs. arch bars: group B). All patients were evaluated for demographic data, etiology, and location of fracture. Characteristically, the complications, including wire injury, infection, and malocclusion, were recorded. The data were analyzed using Student's t-test and chi-square test as appropriate. Statistical significance was set at p < 0.05). In this study, data from 40 patients were included. In group A (embrasure wiring), time required for placement of MMF was significantly less than (7.85 ± 0.81 minutes) that in group B, and also there was less incidence of wire prick to the operator in group A than in group B ( p < 0.05). However, in terms of wire prick and malocclusion, no statistically significant difference was noted in groups A and B ( p > 0.05). Patient treated with embrasure wiring intermaxillary fixation had better outcomes especially in terms of time of placement and less incidence of wire prick injury when compared with arch bar.
Hereditary Neuropathies: Update 2017
Authors: Auer-Grumbach Michaela , Senderek Jan , Rudnik-Schöneborn Sabine
Published: June 2017

Hereditary neuropathy is an umbrella term for a group of nonsyndromic conditions with a prevalence of approximately 1:2,500. In addition to the most frequent form, Charcot–Marie–Tooth's disease (CMT, or hereditary motor and sensory neuropathy), there are additional entities such as hereditary neuropathy with liability to pressure palsies (HNPP), hereditary motor neuropathies (HMNs), and hereditary sensory and autonomic neuropathies (HSANs). With the exception of HNPP, which is almost always caused by defects of the PMP22 gene, all other forms show genetic heterogeneity with altogether close to 100 genes involved. Mutation detection rates vary considerably, reaching up to 80% in demyelinating CMT (CMT1) but are still as low as 10 to 30% in axonal CMT (CMT2), HMN, and HSAN. Based on current information, analysis of only four genes (PMP22, GJB1, MPZ, MFN2) identifies 80 to 90% of CMT-causing mutations that can be detected in all known disease genes. For the remaining patients, parallel analysis of multiple neuropathy genes using next-generation sequencing is now replacing phenotype-oriented multistep gene-by-gene sequencing. Such approaches tend to generate a wealth of genetic information that requires comprehensive evaluation of the pathogenic relevance of identified variants. In this review, we present current classification systems, specific phenotypic clues, and genetic testing algorithms in the different subgroups of hereditary neuropathies.
Prospects on the Application of DNA Barcoding on Soil-Transmitted Helminths in Children
Authors: Ngui Romano , Nissapatorn Veeranoot , Brandon-Mong Guo-Jie
Published: June 2017

Since more than a decade, DNA barcoding has been widely used to examine biological samples and differentiate species, as well as employed in ecological and conservational studies. There is a growing interest of DNA barcoding, particularly in medical parasitology, but its potential utility in soil-transmitted helminths (STHs) remains unclear. Therefore, in this article, we review the studies using DNA barcoding and its applications in medical parasitology with special focus on STHs such as Ascaris lumbricoides, Ancylostoma duodenale, Necator americanus, and Trichuris trichiura. DNA barcoding is reliable for identifying STH species as well as its cryptic species. In addition, epidemiological data and the impacts of STH infections on children are discussed. This article further discusses the paucity of STH DNA barcodes (partial cytochrome oxidase subunit 1 [COI] mitochondrial DNA [mtDNA] sequences) in two gene banks; National Center for Biotechnology Information (NCBI) and Barcode of Life Data (BOLD) Systems. It also highlights the future prospects of DNA barcoding including primer designing and reference library on STHs.
Neues vom Arznei- und Gewürzpflanzenanbau aus Bernburg
Authors: Keusgen Michael
Published: June 2017

Das 27. Bernburger Winterseminar für Arznei- und Gewürzpflanzen bot wie in den vergangenen Jahren ein produktives Diskussionsforum zwischen Anbauern, Herstellern von pflanzlichen Produkten und der Wissenschaft. Mehr als 280 Teilnehmer kamen am 21. und 22. Februar 2017 nach Bernburg, was eine deutliche Steigerung gegenüber den vergangenen Jahren darstellte und die Kapazität der Bernburger Hotels leicht überforderte – aber schließlich fand jeder im näheren Umland ein Bett für die Nacht. Wie immer wurde die Tagung von Saluplanta e. V. organisiert; an dieser Stelle sei schon einmal Herrn Bernd Hoppe herzlich gedankt.