bluuebunny/crossref_metadata_2025 huggingface dataset:
Microporous and mesoporous materials for gas storage and separation: a review
Authors: Chang Fei , Zhou Jun , Chen Pu , Chen Yilu , Jia Honghua , Saad Sameh M. I. , Gao Yang , Cao Xun , Zheng Tao
Published: March 2013

Various technologies and materials have been applied for the storage of clean gas energy, which also could control the combustion process to reduce CO2 emissions. Over the years, microporous and mesoporous materials have been developed as useful technology for gas storage and separation. However, no materials can adequately meet the needs of all applications. The present paper gives an overview of the various materials for gas storage and separation. The results showed that carbonaceous adsorbents were the most potential for meeting the US DoE system targets for gas (methane and hydrogen) storage. Meanwhile, the properties of metal organic frameworks and covalent organic frameworks (thermodynamics and kinetics) had significant improvements with the development of material science. Further, zeolites performed well in CO2 separation, but necessitated a high temperature for recovery. It was concluded that the utility of any new material will ultimately be determined not only by its material performance but also by its system performance, and much work is still required to be performed in the application of microporous and mesoporous materials for gas storage and separation in the future. © 2013 Curtin University of Technology and John Wiley & Sons, Ltd.
Electrically conductive adhesives with a focus on adhesives that contain carbon nanotubes
Authors: Santamaria Antxon , Muñoz María Eugenia , Fernández Mercedes , Landa Maite
Published: March 2013

On the basis of an analysis of results presented in the literature, the currently existing knowledge about relationships between the microstructural and physical properties of hard coatings is discussed. Particular emphasis is placed on the role of microstructural features, such as grain boundaries, nonequilibrium structures, impurities, and texture, in controlling the film hardness. On the basis of an analysis of results presented in the literature, the currently existing knowledge of electrically conductive adhesives (ECAs) is discussed. Particular focus is placed on the results obtained with ECAs that contain carbon nanotubes (CNTs) as conductive fillers. The review is divided in curable ECAs based on epoxy resins, and noncurable conductive hot melts and pressure‐sensitive adhesives based on thermoplastic polymers. More literature results were found for epoxy/conductive filler ECAs than for other adhesives. Confirming the assessments made in a book by Li et al., which refers to nanotechnologies in ECAs, we found that only a reduced number of articles allude to polymer/CNT ECAs. Our analysis of the results includes a study of the balance between the viscosity, immediate adhesion, solidification process, electrical conductivity, and mechanical properties of the adhesives. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Polyvinyl alcohol‐polyethylene oxide‐carboxymethyl cellulose membranes for drug delivery
Authors: Agarwal Roopali , Alam M. Sarwar , Gupta Bhuvanesh
Published: March 2013

The purpose of this research was to develop blends of poly(vinyl alcohol) (PVA)‐poly(ethylene oxide) (PEO) and carboxymethyl cellulose (CMC) by two approaches: solvent casting and freeze‐drying to develop membranes for various biomedical applications. The PVA/PEO/CMC blends in different compositions of 90/10/20, 80/20/20, 70/30/20, 60/40/20, and 50/50/20 were prepared and were coated on polyester (PET) nonwoven fabric and were subsequently freeze‐dried (FD). The influence of PEO concentration on the blend membranes was investigated and characterized by X‐ray diffraction (XRD), differential scanning calorimetry, and attenuated total reflectance‐fourier transform infra‐red (ATR–FTIR) techniques. The water vapor transmission rate (WVTR), swelling behavior, and surface morphology of the FD membranes was also investigated. It was observed that an increase of PEO concentration in blends makes the membranes more fragile. However, the coating of this blend on PET fabric helps in developing the stable membrane. Swelling of the membranes decreased with the increase in the PEO concentration. XRD showed decrease in crystallinity with increase in concentration of PEO. Morphological studies showed a highly porous structure with interconnected pores. The total porosity of the membranes was found to be in the range 89–92%. The FD membranes were found to have WVTR in the range 2000–3000 g/m2/day. A model drug, ciprofloxacin hydrochloride was also incorporated in the matrix and drug release was studied. The antimicrobial nature of the membranes was monitored against E. coli by zone of inhibition method. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Consequences of connectivity alteration on riverine fish assemblages: potential opportunities to overcome constraints in applying conventional monitoring designs
Authors: Rolls Robert J. , Ellison Tanya , Faggotter Stephen , Roberts David T.
Published: March 2013

Patterns of connectivity are critical to structuring both spatial and temporal variation in the composition of species populations and assemblages. Water resource development has an important impact on longitudinal connectivity in rivers, and disrupts natural patterns of dispersal of individuals between segments of the river network. Consequently, artificial barriers alter the structure, size and distribution of species populations leading to impacts on aquatic biodiversity.

Quantitative assessment of the ecological effects of connectivity alteration is necessary to develop effective conservation plans to manage the impacts of anthropogenic fragmentation. Connectivity alteration is a complex environmental disturbance because the potential scale of impact is dependent on the spatial scale at which biota undergo life‐history processes such as spawning and recruitment. Few river networks have single migration barriers, meaning that multiple points of fragmentation are present and have potentially interacting effects. Therefore, conventional ‘control–impact’ approaches to impact assessment may be inappropriate or confounded. Furthermore, monitoring patterns of fish population or assemblage structure moving through fish passage facilities alone creates a mismatch between the spatial scale of impact and assessment of water resource development.

This paper uses a case study in subtropical Australia to highlight three potential approaches to increasing inference of the impact of fragmentation by barriers on riverine fish. Thorough understanding of life‐history and dispersal ecology of fish is necessary to understand and predict the consequences of fragmentation, and comparing patterns of distribution among species with different migration requirements can identify sources of fragmentation. Monitoring patterns in fish assemblages at both the barrier and river network scale increases the strength of inference of the effects of connectivity alteration and management. Experimental removal of artificial barriers would assist in determining the effect of fragmentation by restoring connectivity. Such approaches would improve predictions of connectivity management and underlying drivers of aquatic biodiversity.

Copyright © 2013 John Wiley & Sons, Ltd.
Diversity and genetic population structure of the Brazilian sharpnose shark Rhizoprionodon lalandii
Authors: Mendonça Fernando Fernandes , Oliveira Claudio , Gadig Otto Bismarck Fazzano , Foresti Fausto
Published: March 2013

Similar to many small, range‐restricted elasmobranchs, the Brazilian sharpnose shark (Rhizoprionodon lalandii) is listed as ‘data deficient’ by the International Union for the Conservation of Nature (IUCN). Data on stock assessment and sustainability are scarce, and there is no information on population structure. This constitutes a management problem because this shark comprises approximately 50% of the catch of small coastal sharks in Brazil.

In this study, populations of R. lalandii distributed from the Caribbean to southern Brazil were investigated using sequences from the mitochondrial DNA control region. Analysis of molecular variance revealed strong structuring between population samples from the Caribbean and those from the Brazilian coast (ФST = 0.254, P < 0.0001). Significant differences in the rates of genetic diversity between these major areas were also detected. The observed levels of population structuring are likely to be driven by female phylopatry.

Therefore, the identification of both mating and nursery areas with parallel ban/restriction of fishing in these areas may be critical for the long‐term sustainability of these populations.

Copyright © 2013 John Wiley & Sons, Ltd.
Two‐dimensional sectioned images and three‐dimensional surface models for learning the anatomy of the female pelvis
Authors: Shin Dong Sun , Jang Hae Gwon , Hwang Sung Bae , Har Dong‐Hwan , Moon Young Lae , Chung Min Suk
Published: March 2013

In the Visible Korean project, serially sectioned images of the pelvis were made from a female cadaver. Outlines of significant structures in the sectioned images were drawn and stacked to build surface models. To improve the accessibility and informational content of these data, a five‐step process was designed and implemented. First, 154 pelvic structures were outlined with additional surface reconstruction to prepare the image data. Second, the sectioned and outlined images (in a browsing software) as well as the surface models (in a PDF file) were placed on the Visible Korean homepage in a readily‐accessible format. Third, all image data were visualized with interactive elements to stimulate creative learning. Fourth, two‐dimensional (2D) images and three‐dimensional (3D) models were superimposed on one another to provide context and spatial information for students viewing these data. Fifth, images were designed such that structure names would be shown when the mouse pointer hovered over the 2D images or the 3D models. The state‐of‐the‐art sectioned images, outlined images, and surface models, arranged and systematized as described in this study, will aid students in understanding the anatomy of female pelvis. The graphic data accompanied by corresponding magnetic resonance images and computed tomographs are expected to promote the production of 3D simulators for clinical practice. Anat Sci Educ 6: 316–323. © 2013 American Association of Anatomists.
Militärpsychiatrisches Theater. Französische Kinematographie der “Kriegshysterie”, 1915–1918
Authors: Köhne Julia Barbara
Published: March 2013

Military‐Psychiatric Theater. French Cinematography of “War Hysteria”, 1915–1918. During the First World War, the use of a new form of media technology was applied within French military neuro‐psychiatry: scientific cinematography. This visual technique was used to represent and produce symptoms of so‐called “war hysteria”. “War hysteria” among soldiers and officers not only seemed to symbolize the weakness, inefficiency, and vulnerability of the military collective body, the corps, but challenged the borders of medical cinematography as it was considered to be able to capture ‘real’ symptoms on celluloid. By shivering and shaking, “war hysterics”, firstly, transgressed the classical image of the brave and potent warrior and, secondly, mirrored the flaws of the film technique by emphasizing its limits, twitches, and aesthetical “hysteria”. Analyzing several French medical films, it can be seen that they contain diverse dramaturgical means, just as aesthetical and narrative strategies adopted from forms in the field of illusion, including theater, ballet, cabaret, and feature film. The filmic portrayal of male “hysteria” presented both a transgression and a phantasmatic regaining of the social and military functionability of the strong masculine soldier. The theatrical film rhetoric manages to contrast the shift from the concept of “pithiatisme”, favored by the bulk of the French physicians, in the first half of what was refered to as “la Grande Guerre”, towards a “genuine”, somatic, and physiological aetiology of “war hysteria” cases since 1916.
Materialism and charitable giving: Can they co‐exist?
Authors: Mathur Anil
Published: March 2013

It is generally believed that Western societies are more materialistic compared with other cultures. However, it has also been observed that Americans are among the most generous of all, contributing their time, money, and effort to charitable causes. This research attempted to examine the relationship between materialism and charitable giving. Results of an empirical study suggest that it is possible for materialism to co‐exist with charitable giving. Implications of the findings and suggestions for future research are also discussed. Copyright © 2012 John Wiley & Sons, Ltd.
Clinical implications for diffusion‐weighted MRI brain lesions associated with transcatheter aortic valve replacement
Authors: Meller Stephanie M. , Baumbach Andreas , Brickman Adam M. , Lansky Alexandra J.
Published: March 2013

Transcatheter aortic valve replacement (TAVR) is increasingly used to treat patients with aortic stenosis deemed high or extreme surgical risk candidates. Despite improved survival and quality of life following the procedure, TAVR is not without its complications. Stroke is a major source of morbidity and mortality in patients undergoing the procedure, with rates similar to and often higher than those associated with surgery. Most studies show a consistent link between TAVR and embolic lesions visualized on diffusion‐weighted magnetic resonance imaging. The question of whether these lesions lead to long‐term cognitive consequences remains open, but given the large literature on silent strokes and cognition, this association is probable. Initial studies implementing cerebral embolic protection devices in TAVR have yielded promising results with decreased neurological complications and appearance of new lesions on imaging. In this article, we will review the evidence linking silent stroke with cognitive decline, and potential therapeutic options to prevent stroke related to TAVR, including cerebral protection devices currently under investigation. © 2013 Wiley Periodicals, Inc.
Closure of patent ductus arteriosus in children, small infants, and premature babies with Amplatzer duct occluder II additional sizes: Multicenter study
Authors: Sungur Metin , Karakurt Cemsit , Ozbarlas Nazan , Baspinar Osman
Published: March 2013

Objectives

To evaluate safety and efficacy of closure of patent ductus arteriosus (PDA) with Amplatzer duct occluder II Additional Sizes (ADO II AS) and to report early and midterm results of the device in children and very young symptomatic infants.

Methods

Retrospective analysis of angiographic data of 60 children from four pediatric cardiology centers.

Results

The median patient age and weight were 6.5 (0.5–168) months and 6.8 (1.19–57) kg, respectively. In the study, 26 children had a body weight of ≤6 kg. Of these 26 children, 9 had a body weight of ≤3 kg. The median narrowest diameter of PDA was 2 (1.2–4) mm. Ductal anatomy was Type A in 29, Type B in 2, Type C in 11, Type D in 1, and Type E in 16 patients, and a residual PDA after surgery in 1 patient. Closure with ADO II AS was achieved in 58 (96.6%) of 60 attempted cases. In two infants, the device was not released because of significant residual shunt. ADO II was used in one, and the other was sent to surgery. Complete closure was observed in all ADO II AS deployed children by the next day on echocardiography. Median follow‐up was 12 (1–18) months. Neither death nor any major complications occurred.

Conclusions

Our study shows that closure of medium and small sized PDA by using ADO II AS device is effective and safe in children. The use of the device will expand the field of application of PDA closure in small infants. © 2013 Wiley Periodicals, Inc.
A novel device for antegrade percutaneous balloon aortic valvuloplasty: Feasibility of the looped inoue balloon technique in swine model
Authors: Bao Bingyuan , Saito Naritatsu , Watanabe Shin , Tokushige Akihiro , Yamamoto Erika , Kawase Yoshiaki , Kimura Takeshi , Inoue Kanji
Published: March 2013

Objectives

The study aimed to assess the feasibility of a novel device and technique for antegrade percutaneous balloon aortic valvuloplasty (BAV) in a swine model.

Background

BAV is currently being applied more frequently compared to the past with the advent of transcatheter aortic valve replacement. Although the antegrade BAV approach offers several advantages over the retrograde approach, the antegrade approach is technically more complicated and demanding.

Methods

We developed a novel balloon catheter and a technique to simplify the antegrade BAV. The balloon catheter was designed to make a loop in left atrium by inserting two different sized stylets. The balloon catheter was easily dropped into the left ventricle via the mitral valve while maintaining the loop. The balloon catheter was advanced to the ascending aorta by holding the two stylets. Then, the balloon was inflated. We named the technique as the looped Inoue balloon technique. The feasibility of the looped Inoue balloon technique was assessed in a healthy swine with a body weight of 40 kg by four independent operators. Every operator conducted the procedure twice.

Results

The procedural success rate was 100% in all operators. The average procedure time was 170 ± 35 sec. No procedure related complications were noted.

Conclusions

The study results indicate that the antegrade BAV using the looped Inoue balloon technique is feasible and may simplify the antegrade approach. © 2013 Wiley Periodicals, Inc.
Multicenter nit‐occlud® PDA‐R patent. Ductus arteriosus occlusion device trial: Initial and six‐month results
Authors: Granja Miguel A. , Trentacoste Luis , Rivarola Marcelo , Barbosa Jesus Damsky , Lucini Victorio , Peirone Alejandro , Spillman Ana
Published: March 2013

Background

Transcatheter closure of a moderate to large patent ductus arteriosus (PDA) using conventional techniques is challenging. The Nit‐Occlud® PDA‐R trial can close a PDA up to 8 mm in diameter. We sought to report procedural and six‐month efficacy and safety results of the multicenter Nit‐Occlud® PDA‐R trial.

Methods

From June 2010 to February 2011, 43 patients were enrolled in three centers from Argentina. Median age was 4.5 (range 1.4–18.4 years) years old at catheterization, 70% were females and weight was 17.7 (range 10–67 kg).

Results

PDAs mean diameter was 2.98 ± 1.03 and ranged from 2 to 6.19 mm. About 11.6% were large (≥4 mm), whereas 32.6% were <2.5 mm. Median pulmonary artery mean pressure was 17 mm Hg (range 9–26 mm Hg). The device was implanted successfully in all patients. By echocardiography, trivial residual shunt was observed in 42% at the end of the procedure, in 28% at 24 hr, in 12.1% at one week, and none at three‐months. There was one case of embolization (due to undersizing), that was treated successfully with a larger study device. There were no major short‐ or long‐term complications.

Conclusions

PDAs ranging from 2 to 6 mm can be effectively and safely closed using the Nit‐Occlud® PDA‐R device, with good procedural and six‐month results. The Nit‐Occlud® PDA‐R emerges as an optimal alternative for closure of small to moderate PDAs. © 2015 Wiley Periodicals, Inc.
Semicontinuous Discharge of Non‐Newtonian Filter Cakes in Electrofiltration
Authors: Perner‐Nochta I. , Rodrigues R. , Serve Y. , Posten C.
Published: March 2013

A novel mode of operation for electrofiltration is presented. The newly developed operation procedure allows for cake removal without disassembling the chamber. Highly viscous filter cakes are discharged from the filtration chamber by inserting air which permits a rapid restart of the process. The cleaning time could be reduced from about 10 min to a few seconds. The semicontinuous operation is liable to full automation and allows for cake discharge and filtration in a short period of time. In successive cycles was proved that the process efficiency is maintained using the same membrane. A fully continuous system can be accomplished by assembling several units in parallel in a single filtration press.
Amoxicillin and Ethyl Cellulose Precipitation by Two Supercritical Antisolvent Processes
Authors: Montes A. , Nunes A. , Gordillo M. D. , Pereyra C. , Duarte C. M. M. , Martínez de la Ossa E. J.
Published: March 2013

Composites of amoxicillin and ethyl cellulose in the micrometer range were precipitated by supercritical antisolvent (SAS) processes using carbon dioxide as antisolvent and a mixture of dichloromethane and dimethylsulfoxide as solvents. Morphologies and mean diameter ranges were analyzed by scanning electron microscopy. X‐ray photoelectron spectroscopy (XPS) and high‐performance liquid chromatography were carried out in order to ensure successful coprecipitation and to determine the amoxicillin contents in the final products. The SAS processes used differ mainly in the way in which the solutions are introduced: through a normal or a coaxial nozzle. The XPS results provided proof that amoxicillin was not distributed in the same way in all the samples. The release behavior of the composites obtained was evaluated in two biological fluids, i.e., simulated gastric and simulated intestinal fluids. The different systems led to the release of the drug in different ways; but in all cases slower solubilization was obtained than for the pure drug.
Influence of Chitosan and Chitosan Derivatives on Hydrodynamics and Mass Transfer in a Bubble Contactor
Authors: García‐Abuín A. , Gómez‐Díaz D. , Navaza J. M.
Published: March 2013

The behavior of chitosan and two kinds of chitosan derivatives in carbon dioxide absorption in a bubble column contactor is analyzed. The effects of absorption type (physical or chemical), polymer type, concentration, and liquid‐phase physical properties on hydrodynamics (bubble size, gas holdup, and specific interfacial area) and mass transfer (absorption rate and mass transfer coefficient) are evaluated.
A Conventional Surfactant Becomes CO2‐Responsive in the Presence of Switchable Water Additives
Authors: Su Xin , Robert Tobias , Mercer Sean M. , Humphries Christine , Cunningham Michael F. , Jessop Philip G.
Published: March 2013

We have developed a new benign means of reversibly breaking emulsions and latexes by using “switchable water”, an aqueous solution of switchable ionic strength. The conventional surfactant sodium dodecyl sulfate (SDS) is not normally stimuli‐responsive when CO2 is used as the stimulus but becomes CO2‐responsive or “switchable” in the presence of a switchable water additive. In particular, changes in the air/water surface tension and oil/water interfacial tension can be triggered by addition and removal of CO2. A switchable water additive, N,N‐dimethylethanolamine (DMEA), was found to be an effective and efficient additive for the reversible reduction of interfacial tension and can lower the tension of the dodecane/water interface in the presence of SDS surfactant to ultra‐low values at very low additive concentrations. Switchable water was successfully used to reversibly break an emulsion containing SDS as surfactant, and dodecane as organic liquid. Also, the addition of CO2 and switchable water can result in aggregation of polystyrene (PS) latexes; the later removal of CO2 neutralizes the DMEA and decreases the ionic strength allowing for the aggregated PS latex to be redispersed and recovered in its original state.
Hydroxyapatite Hierarchically Nanostructured Porous Hollow Microspheres: Rapid, Sustainable Microwave‐Hydrothermal Synthesis by Using Creatine Phosphate as an Organic Phosphorus Source and Application in Drug Delivery and Protein Adsorption
Authors: Qi Chao , Zhu Ying‐Jie , Lu Bing‐Qiang , Zhao Xin‐Yu , Zhao Jing , Chen Feng , Wu Jin
Published: March 2013

Hierarchically nanostructured porous hollow microspheres of hydroxyapatite (HAP) are a promising biomaterial, owing to their excellent biocompatibility and porous hollow structure. Traditionally, synthetic hydroxyapatite is prepared by using an inorganic phosphorus source. Herein, we report a new strategy for the rapid, sustainable synthesis of HAP hierarchically nanostructured porous hollow microspheres by using creatine phosphate disodium salt as an organic phosphorus source in aqueous solution through a microwave‐assisted hydrothermal method. The as‐obtained products are characterized by powder X‐ray diffraction (XRD), Fourier‐transform IR (FTIR) spectroscopy, SEM, TEM, Brunauer–Emmett–Teller (BET) nitrogen sorptometry, dynamic light scattering (DLS), and thermogravimetric analysis (TGA). SEM and TEM micrographs show that HAP hierarchically nanostructured porous hollow microspheres consist of HAP nanosheets or nanorods as the building blocks and DLS measurements show that the diameters of HAP hollow microspheres are within the range 0.8–1.5 μm. The specific surface area and average pore size of the HAP porous hollow microspheres are 87.3 m2g−1 and 20.6 nm, respectively. The important role of creatine phosphate disodium salt and the influence of the experimental conditions on the products were systematically investigated. This method is facile, rapid, surfactant‐free and environmentally friendly. The as‐prepared HAP porous hollow microspheres show a relatively high drug‐loading capacity and protein‐adsorption ability, as well as sustained drug and protein release, by using ibuprofen as a model drug and hemoglobin (Hb) as a model protein, respectively. These experiments indicate that the as‐prepared HAP porous hollow microspheres are promising for applications in biomedical fields, such as drug delivery and protein adsorption.
Controlled Synthesis of Thorium and Uranium Oxide Nanocrystals
Authors: Hudry Damien , Apostolidis Christos , Walter Olaf , Gouder Thomas , Courtois Eglantine , Kübel Christian , Meyer Daniel
Published: March 2013

Very little is known about the size and shape effects on the properties of actinide compounds. As a consequence, the controlled synthesis of well‐defined actinide‐based nanocrystals constitutes a fundamental step before studying their corresponding properties. In this paper, we report on the non‐aqueous surfactant‐assisted synthesis of thorium and uranium oxide nanocrystals. The final characteristics of thorium and uranium oxide nanocrystals can be easily tuned by controlling a few experimental parameters such as the nature of the actinide precursor and the composition of the organic system (e.g., the chemical nature of the surfactants and their relative concentrations). Additionally, the influence of these parameters on the outcome of the synthesis is highly dependent on the nature of the actinide element (thorium versus uranium). By using optimised experimental conditions, monodisperse isotropic uranium oxide nanocrystals with different sizes (4.5 and 10.7 nm) as well as branched nanocrystals (overall size ca. 5 nm), nanodots (ca. 4 nm) and nanorods (with ultra‐small diameters of 1 nm) of thorium oxide were synthesised.
Tuning the Surface Structure of Nitrogen‐Doped TiO2 Nanofibres—An Effective Method to Enhance Photocatalytic Activities of Visible‐Light‐Driven Green Synthesis and Degradation
Authors: Zheng Zhanfeng , Zhao Jian , Yuan Yong , Liu Hongwei , Yang Dongjiang , Sarina Sarina , Zhang Hongjie , Waclawika Eric R. , Zhu Huaiyong
Published: March 2013

Nitrogen‐doped TiO2 nanofibres of anatase and TiO2(B) phases were synthesised by a reaction between titanate nanofibres of a layered structure and gaseous NH3 at 400–700 °C, following a different mechanism than that for the direct nitrogen doping from TiO2. The surface of the N‐doped TiO2 nanofibres can be tuned by facial calcination in air to remove the surface‐bonded N species, whereas the core remains N doped. N‐Doped TiO2 nanofibres, only after calcination in air, became effective photocatalysts for the decomposition of sulforhodamine B under visible‐light irradiation. The surface‐oxidised surface layer was proven to be very effective for organic molecule adsorption, and the activation of oxygen molecules, whereas the remaining N‐doped interior of the fibres strongly absorbed visible light, resulting in the generation of electrons and holes. The N‐doped nanofibres were also used as supports of gold nanoparticle (Au NP) photocatalysts for visible‐light‐driven hydroamination of phenylacetylene with aniline. Phenylacetylene was activated on the N‐doped surface of the nanofibres and aniline on the Au NPs. The Au NPs adsorbed on N‐doped TiO2(B) nanofibres exhibited much better conversion (80 % of phenylacetylene) than when adsorbed on undoped fibres (46 %) at 40 °C and 95 % of the product is the desired imine. The surface N species can prevent the adsorption of O2 that is unfavourable for the hydroamination reaction, and thus, improve the photocatalytic activity. Removal of the surface N species resulted in a sharp decrease of the photocatalytic activity. These photocatalysts are feasible for practical applications, because they can be easily dispersed into solution and separated from a liquid by filtration, sedimentation or centrifugation due to their fibril morphology.
ChemInform Abstract: Stabilized Gold Clusters by Heterostructured Transition‐Metal Oxide—Mesoporous Silica Supports for Enhanced Catalytic Activities for CO Oxidation.
Authors: Ma Guicen , Binder Andrew , Chi Miaofang , Liu Chao , Jin Rongchao , Jiang De‐en , Fan Jie , Dai Sheng
Published: March 2013

Gold clusters, Au25 and Au144, after removal of their protecting thiolate ligands by thermal treatment are stabilized by heterostructured mesoporous CuO—mSiO2 and Co3O4—mSiO2 supports.
ChemInform Abstract: Synthesis and Crystal Structure of Cubic Ca16Si17N34.
Authors: Hick Sandra M. , Miller Mattheu I. , Kaner Richard B. , Blair' Richard G.
Published: March 2013

Single crystals of the title compound are prepared from an equimolar mixture of Si and Ca3N2 (flowing nitrogen, 1500 °C, 2 h).
ChemInform Abstract: Kinetic Resolution of Propargylamines via a Highly Enantioselective Non‐enzymatic N‐Acylation Process.
Authors: Kolleth Amandine , Christoph Sarah , Arseniyadis Stellios , Cossy Janine
Published: March 2013

A variety of acetamides (III) is obtained by a highly enantioselective acetyl transfer from acylating agent (II) to amines (I).
ChemInform Abstract: One‐Point Binding Ligands for Asymmetric Gold Catalysis: Phosphoramidites with a TADDOL‐Related but Acyclic Backbone.
Authors: Teller Henrik , Corbert Matthieu , Mantilli Luca , Gopakumar Gopinadhanpillai , Goddard Richard , Thiel Walter , Fuerstner Alois
Published: March 2013

Ligands of type (I) and (II) are developed as excellent components for gold catalysis.
ChemInform Abstract: Pd‐Catalyzed Borylative Cyclization of 1,7‐Enynes.
Authors: Pardo‐Rodriguez Virtudes , Bunuel Elena , Collado‐Sanz Daniel , Cardenas Diego J.
Published: March 2013

The cyclization of enynes (I) with dipinacolyl hypodiborate (II) leads to desired cyclic boronate derivatives (III), which can be oxidized to alcohols, e.g. compound (IV).
ChemInform Abstract: Unconventional Titania Photocatalysis: Direct Deployment of Carboxylic Acids in Alkylations and Annulations.
Authors: Manley David W. , McBurney Roy T. , Miller Philip , Howe Russell F. , Rhydderch Shona , Walton John C.
Published: March 2013

Photodimerization of carboxylic acids and alkylations of alkenes with carboxylic acids are promoted by TiO2 or platinized TiO2.
ChemInform Abstract: Asymmetric Direct α‐Hydroxylation of β‐Oxo Esters Catalyzed by Chiral Quaternary Ammonium Salts Derived from Cinchona Alkaloids.
Authors: Yao Hongjie , Lian Mingming , Li Zhi , Wang Yakun , Meng Qingwei
Published: March 2013

The ammonium salt (I) efficiently promotes the enantioselective α‐hydroxylation of indanone‐ and tetralone‐derived β‐oxo esters under mild conditions.
ChemInform Abstract: Fe(III)/NaBH4‐Mediated Free Radical Hydrofluorination of Unactivated Alkenes.
Authors: Barker Timothy , Boger Dale L.
Published: March 2013

The transformation is achieved under exceptionally mild conditions to yield the corresponding Markovnikov addition products.
ChemInform Abstract: Redox‐Neutral α‐Cyanation of Amines.
Authors: Ma Longle , Chen Weijie , Seidel Daniel
Published: March 2013

A novel method for the α‐cyanation of cyclic amines is achieved via acid‐catalyzed reaction with cyanohydrins to yield products not accessible by traditional Strecker chemistry.
ChemInform Abstract: Characterization of Novel Cs and K Substituted Phosphotungstic Acid Modified MCM‐41 Catalyst and Its Catalytic Activity Towards Acetylation of Aromatic Alcohols.
Authors: Rana Surjyakanta , Mallick Sujata , Rath Dharitri , Parida K. M.
Published: March 2013

The catalysts exhibit excellent activity for the acetylation of phenols and benzyl alcohols.
ChemInform Abstract: Development of an Intramolecular Aryne Ene Reaction and Application to the Formal Synthesis of (.+‐.)‐Crinine.
Authors: Candito David A. , Dobrovolsky Dennis , Lautens Mark
Published: March 2013

The scope of the LDA‐promoted process is studied in detail with a variety of structurally diverse aryne precursors.
ChemInform Abstract: Scope and Mechanistic Analysis of the Enantioselective Synthesis of Allenes by Rhodium‐Catalyzed Tandem Ylide Formation/[2,3]‐Sigmatropic Rearrangement Between Donor/Acceptor Carbenoids and Propargylic Alcohols.
Authors: Li Zhanjie , Boyarskikh Vyacheslav , Hansen Joern H. , Autschbach Jochen , Musaev Djamaladdin G. , Davies Huw L.
Published: March 2013

Reaction of carbenoids with propargylic alcohols results in tandem oxonium ylide formation/[2,3]‐sigmatropic rearrangement to yield allenes with high enantioselectivity.
ChemInform Abstract: Ruthenium‐Catalyzed Transformation of Aryl and Alkenyl Triflates to Halides.
Authors: Imazaki Yusuke , Shirakawa Eiji , Ueno Ryota , Hayashi Tamio
Published: March 2013

An efficient process is developed using alkali halides as the reagents.
ChemInform Abstract: Amination of Aryl Halides by Using an Environmentally Benign, Recyclable Copper Catalyst.
Authors: Huang Manna , Wang Leilei , Zhu Xinhai , Mao Zuxing , Kuang Daizhi , Wan Yiqian
Published: March 2013

A novel and environmentally benign homogeneous catalyst system is developed and used for the direct amination of aryl halides with ammonia consisting of naturally occurring sucrose and CuSO4 in an aqueous solution of PEG‐200.
ChemInform Abstract: Readily Available (S)‐Proline‐Derived Organocatalysts for the Lewis Acid‐Mediated Lewis Base‐Catalyzed Stereoselective Aldol Reactions of Activated Thioesters.
Authors: Bonsignore Martina , Benaglia Maurizio , Cozzi Franco , Genoni Andrea , Rossi Sergio , Raimondi Laura
Published: March 2013

The bisphosphine oxide catalyst PPO is optimal as catalyst in aldol reactions of thioesters (I) with aromatic aldehydes.
ChemInform Abstract: Direct Substitution of Primary Allylic Amines with Sulfinate Salts.
Authors: Wu Xue‐Song , Chen Yan , Li Man‐Bo , Zhou Meng‐Guang , Tian Shi‐Kai
Published: March 2013

The process is applied to a broad spectrum of substrates where high regioselectivity is observed.
ChemInform Abstract: The Catalytic Activity of a Novel Recyclable Alkoxypalladium Complex in Suzuki Reaction.
Authors: Li Yabo , Huang Mengmeng , Cai Ranran , Wu Yangjie
Published: March 2013

The novel catalyst is insoluble in various organic solvents.
ChemInform Abstract: Homogenization of Inorganic Material‐Supported Palladium Catalysts in Suzuki Coupling Reaction at Room Temperature.
Authors: Ma Yueyue , Ma Xuebing , Wang Qiang , Zhou Jinqin
Published: March 2013

A wide range of substituted biphenyl derivatives is prepared with the catalyst (Ia) affording slightly better results.
ChemInform Abstract: Palladium‐Catalyzed Alkyne Insertion/Suzuki Reaction of Alkyl Iodides.
Authors: Monks Brendan M. , Cook Silas P.
Published: March 2013

Selective migratory insertion of alkynes avoids β‐hydride elimination and allows the access to regio‐ and stereodefined unsymmetrical, tetrasubstituted olefin units which bear an alicyclic ring system.
ChemInform Abstract: Phosphine‐Catalyzed Rauhut—Carrier Domino Reaction: A Facile Strategy for the Construction of Highly Functionalized Cyclopentene.
Authors: Hu Chongchong , Geng Zhishuai , Ma Jianze , Huang You , Chen Ruyu
Published: March 2013

A convenient and efficient method for the synthesis of highly functionalized cyclopentene skeletons with high chemo‐ and diastereoselectivities is reported.
ChemInform Abstract: Iridium‐Catalyzed Regioselective and Enantioselective Allylation of Trimethylsiloxyfuran.
Authors: Chen Wenyong , Hartwig John F.
Published: March 2013

Various title transformations are investigated with catalyst (I) or its enantiomer as the optically active agents.
ChemInform Abstract: Access to 2,3‐Disubstituted Benzofurans Through One‐Pot Acid‐Catalyzed Nucleophilic Substitution/TBAF‐Mediated Oxacycloisomerization.
Authors: Reddy Chada Raji , Krishna Gaddam , Kavitha Nerella , Latha Bellamkonda , Shin Dong‐Soo
Published: March 2013

A mild, efficient and metal‐free synthesis of benzofurans.
ChemInform Abstract: β‐Lactam‐Synthon‐Interceded Diastereoselective Synthesis of Functionally Enriched Thioxo‐imidazolidines, Imidazolidin‐2‐ones, Piperazine‐5,6‐diones and 4,5‐Dihydroimidazoles.
Authors: Mehra Vishu , Singh Pardeep , Kumar Vipan
Published: March 2013

Starting from β‐lactam azides (I) or analogous amino derivatives (VI), convenient protocols are developed for the synthesis of the title compounds via (diastereomeric) aminocarboxylic acid esters.
ChemInform Abstract: Preparation and Rearrangement of N‐Vinyl Nitrones: Synthesis of Spiroisoxazolines and Fluorene‐Tethered Isoxazoles.
Authors: Mo Dong‐Liang , Wink Donald A. , Anderson Laura L.
Published: March 2013

The thermal rearrangement of fluorenone N‐vinyl nitrones (IIIc)‐(IIIf) gives rise to spiroisoxazolines such as (VIII) and (IX).
ChemInform Abstract: Recyclable Clay‐Supported Cu(II)‐Catalyzed Tandem One‐Pot Synthesis of 1‐Aryl‐1,2,3‐triazoles.
Authors: Mohammed Shabber , Padala Anil K. , Dar Bashir A. , Singh Baldev , Sreedhar B. , Vishwakarma Ram A. , Bharate Sandip B.
Published: March 2013

CuO nanoparticles, supported on montmorillonite K10, are found to catalyze the azidation of arylboronic acids as well as the 1,3‐dipolar cycloaddition of the resulting organic azides to terminal alkynes.
ChemInform Abstract: Regioselective Synthesis of 2‐(2‐Hydroxyaryl)pyridines from the Reactions of Benzynes with Pyridine N‐Oxides.
Authors: Shaibu Balagopal S. , Kawade Rahul Kisan , Liu Rai‐Shung
Published: March 2013

The title reaction affords the desired products of type (III), (VIII) and (X) with complete regioselectivity.
ChemInform Abstract: A New Flow Methodology for the Expedient Synthesis of Drug‐Like 3‐Aminoindolizines.
Authors: Lange Paul P. , Bogdan Andrew R. , James Keith
Published: March 2013

The present flow‐based synthesis of diversely functionalized indolizines and their aza‐analogues is achieved via a tandem Sonogashira— cycloisomerization sequence.
ChemInform Abstract: Ring‐Closing Metathesis/Isomerization/Pictet—Spengler Cascade via Ruthenium/Chiral Phosphoric Acid Sequential Catalysis.
Authors: Cai Quan , Liang Xiao‐Wei , Wang Shou‐Guo , Zhang Jun‐Wei , Zhang Xiao , You Shu‐Li
Published: March 2013

The method affords various optically active tetrahydro‐β‐carboline derivatives, which are of interest as heterocyclic scaffolds for natural products and pharmaceuticals.
ChemInform Abstract: Concise Synthesis of Acetal‐Protected syn 1,3‐Diols by a Tandem Hemiacetal Formation/Tsuji—Trost Reaction.
Authors: Wang Liang , Menche Dirk
Published: March 2013

A novel domino sequence for synthesis of the title compounds is developed.
ChemInform Abstract: Rh‐Catalyzed Borylation of N‐Adjacent C(sp3)—H Bonds with a Silica‐Supported Triarylphosphine Ligand.
Authors: Kawamorita Soichiro , Miyazaki Tatsuya , Iwai Tomohiro , Ohmiya Hirohisa , Sawamura Masaya
Published: March 2013

Direct borylation of amides, ureas, and 2‐aminopyridine derivatives at the position adjacent to the N‐atom results in formation of α‐aminoalkylboronates.
ChemInform Abstract: Copper(I)‐Catalyzed Formal Carboboration of Alkynes: Synthesis of Tri‐ and Tetrasubstituted Vinylboronates.
Authors: Alfaro Ricardo , Parra Alejandro , Aleman Jose , Garcia Ruano Jose Luis , Tortosa Mariola
Published: March 2013

Terminal and internal alkynes as well as 1,3‐enynes can be used with success as substrates.
ChemInform Abstract: Activation of Si—Si Bonds for Copper(I)‐Catalyzed Conjugate Silylation.
Authors: Iannazzo Laura , Molander Gary A.
Published: March 2013

Alkylsilanes are prepared through copper(I)‐catalyzed conjugate addition of disilanes to activated alkenes containing sulfono, cyano, and amido groups.
ChemInform Abstract: Metal Phosphides: Preparation, Characterization and Catalytic Reactivity
Authors: Prins Roel , Bussell Mark E.
Published: March 2013

Review: 165 refs.
ChemInform Abstract: Revisiting Magnetism of Capped Au and ZnO Nanoparticles: Surface Band Structure and Atomic Orbital with Giant Magnetic Moment
Authors: Hernando Antonio , Crespo Patricia , Garcia Miguel Angel , Coey Michael , Ayuela Andres , Echenique Pedro Miguel
Published: March 2013

Review: 56 refs.
ChemInform Abstract: Synthetic Methodologies for the Preparation of β‐Amino Thiols
Authors: Mercey Guillaume , Reboul Vincent , Gulea Mihaela , Levillain Jocelyne , Gaumont Annie‐Claude
Published: March 2013

Review: 45 refs.
ChemInform Abstract: Gas Extrusion in Natural Products Total Synthesis
Authors: Jiang Xuefeng , Shi Lei , Liu Hui , Khan Akbar H. , Chen Jason S.
Published: March 2013

Review: 48 refs.
ChemInform Abstract: The Synthesis and Biological Activities of 3‐Acyl‐2,3‐dihydro‐1,3,4‐oxadiazole/3‐Acyl‐1,3,4‐oxadiazoline Derivatives Obtained from Hydrazide‐hydrazones
Authors: Rollas Sevim , Karakus Sevgi
Published: March 2013

Review: 98 refs.
ChemInform Abstract: Formation of C—C Bonds via Ruthenium‐Catalyzed Transfer Hydrogenation
Authors: Moran Joseph , Krische Michael J.
Published: March 2013

Review: 91 refs.
ChemInform Abstract: Catalytic Enantioselective Reactions Using Organomanganese Compounds
Authors: Chinkov Nicka
Published: March 2013

Review: 370 refs.
ChemInform Abstract: Oncoepigenomics: Making Histone Lysine Methylation Count
Authors: DeCarlo Daniel , Hadden M. Kyle
Published: March 2013

Review: 151 refs.
ChemInform Abstract: The Use of High‐Solid Loadings in Biomass Pretreatment
Authors: Modenbach Alicia A. , Nokes Sue E.
Published: March 2013

Review: 66 refs.
ChemInform Abstract: Theory and Simulation in Catalysis
Authors: Neurock Matthew
Published: March 2013

Review: 96 refs.
Modeling, Simulation and Experimental Verification of the Break‐Up of Liquid Jets and the Drop Formation in the Centrifugal Field
Authors: Gramlich Simon , Piesche Manfred
Published: March 2013

Vorgestellt wird ein physikalisch‐mathematisches Modell zur Beschreibung des Zerfalls von Flüssigkeitsstrahlen und der Tropfenbildung im Zentrifugalfeld unter Berücksichtigung der umgebenden Gasphase und der Viskosität. Das Modell beruht auf der Methode der kleinen Schwingungen, bei der die Strömung in eine zeitlich gemittelte Grundströmung und eine instationäre Störungsbewegung unterteilt wird. Die resultierenden Tropfengrößen werden mit experimentellen Daten verglichen und zeigen eine gute Übereinstimmung. Als Randbedingung dient dem Modell die experimentell ermittelte Zerfallslänge.
Hydrodynamics and Mass Transfer in a Pellet String Reactor for Gas‐Liquid‐Solid Reactions
Authors: Langsch Robert , Haase Stefan , Lange Rüdiger
Published: March 2013

In dieser Arbeit wurden die Hydrodynamik einer Gas/Flüssig‐Zweiphasenströmung und erzielbare Stofftransportraten in einem Perlschnurreaktor charakterisiert. Die Katalysatorpackung im Reaktor besteht aus runden Kanälen mit einem Kanaldurchmesser von 1,41 mm, in die kugelförmige Katalysatorpartikel mit einem Durchmesser von 0,8 mm integriert sind. Bei gleichzeitig ablaufender Reaktion (Flüssigphasenhydrierung von α‐Methylstyrol) konnten volumetrische Gesamtstoffdurchgangskoeffizienten für Wasserstoff zwischen 0,8 und 5,5 s–1 ermittelt werden. Aufgrund der hohen erzielbaren Stofftransportraten und des einfachen Aufbaus können Perlschnurreaktoren schnell in der Industrie implementiert werden und tragen zur Generierung hocheffizienter Reaktionsapparate bei.
Improving the Methanation Process
Authors: Krier Claudia , Hackel Marius , Hägele Christian , Urtel Heiko , Querner Claudia , Haas Andreas
Published: March 2013

The production of substitute natural gas based on coal or biomass is once again back in focus, initiated by rising natural gas prices and the desire to become independent from natural gas imports. It is necessary to optimize the commercial process, e.g., by using harsher process conditions to reduce the recycle ratio. In line with this the development of new catalytic materials as well as the understanding of the reaction kinetics to control the heat of reaction and predict the lifetime of the catalyst is required.
Life Cycle Cost Analysis for Decision Support in Chemical Process Development
Authors: Sell Ina , Ott Denise , Kralisch Dana
Published: March 2013

Die Notwendigkeit umweltfreundlicher Prozesse als entscheidendes Merkmal der Wettbewerbsfähigkeit steht zunehmend im Fokus der chemischen Industrie. Grundlage für Entscheidungsprozesse bei der Entwicklung derartiger Prozesse können Ökobilanzanalysen bieten. Neue Technologien werden sich jedoch nur dann etablieren können, wenn sie auch zu kosteneffizienten Produktionsprozessen führen. Lebenszykluskostenanalysen bieten eine geeignete methodische Grundlage, die kostenseitige Bewertung alternativer Optionen der Prozessentwicklung mit ökologischen Entscheidungskriterien zu koppeln, wobei die Ergebnisse beider Methoden in einem Öko‐Portfolio verknüpft werden können. Die Entwicklung sowohl ökologisch als auch ökonomisch effizienter Prozesse kann somit bereits in der frühen Designphase der chemischen Prozessentwicklung gezielt unterstützt und gesteuert werden.
One‐Pot Conversion of Sugar and Sugar Polyols to n‐Alkanes without CC Dissociation over the Ir‐ReOx/SiO2 Catalyst Combined with H‐ZSM‐5
Authors: Chen Kaiyou , Tamura Masazumi , Yuan Zhenle , Nakagawa Yoshinao , Tomishige Keiichi
Published: March 2013

High (≥95 % C) yields of n‐hexane and n‐pentane were obtained by hydrogenolysis of aqueous sorbitol and xylitol, respectively, at 413–443 K by using the Ir‐ReOx/SiO2 catalyst combined with H‐ZSM‐5 as a cocatalyst and n‐dodecane as a cosolvent. The direct production of n‐hexane from glucose or cellobiose can be achieved by using the same system. The catalyst can be reused simply by the removal of the n‐dodecane phase, which contains the product alkane, and the addition of fresh n‐dodecane and substrate.