bluuebunny/crossref_metadata_2025 huggingface dataset:
Historical Background of Macrocyclic Compounds
Authors: Ogoshi Tomoki , Yamagishi Tada-aki
Published: October 2015

The design and synthesis of new macrocyclic compounds remains of interest because macrocyclic compounds are of major importance in the field of supramolecular chemistry. However, it is rare that chemists discover new classes of macrocyclic compounds, which may show great potential for application and open new avenues for chemists to explore these novel supramolecular systems and materials. Charles Pedersen's paper, published in the Journal of the American Chemical Society, on the discovery of crown ethers, was the starting point of supramolecular chemistry using artificial macrocyclic compounds. Cyclodextrins, crown ethers, and calix[n]arenes have dominated supramolecular chemistry for the past 50 years. The breakthrough paper published by Kim in 2000 contributed to the development of cucurbit[n]uril chemistry. Subsequently, cucurbit[n]urils were also classed as of major importance in supramolecular chemistry. Building on this historical background, one of the new classes of macrocyclic compounds, pillar[n]arenes, appeared in the literature in 2008, and is becoming dominant in the field of macrocyclic chemistry along with the other four key components. In this chapter, first we discuss the interesting points of macrocyclic compounds. Second, we present the key features of the four key classes of compounds in supramolecular chemistry. Other well-known macrocyclic compounds and new compounds showing great potential in macrocyclic chemistry are also mentioned. Finally, we discuss what factors are important in making macrocyclic compounds dominant in the field of supramolecular chemistry.
Synthesis of Pillar[n]arenes
Authors: Ogoshi Tomoki , Yamagishi Tada-aki
Published: October 2015

Pillar[n]arenes were discovered as a product of chance. In 2008, the preparation of phenol-paraformaldehyde resins using a featureless phenolic monomer, 1,4-dimethoxybenzene, led to the appearance of fascinating macrocycles, pillar[n]arenes. By tuning the cyclization reaction, pillar[5]arene can be obtained in high yield (>70%). Extensive efforts have uncovered the mechanism for the synthesis of pillar[5]arenes, and have led to the synthesis of larger pillar[n]arene homologs. The solvent used in the cyclization is a key factor for the synthesis of pillar[n]arenes. Linear solvents with electron-withdrawing groups, such as 1,2-dichloroethane and dichloromethane, act as a template for the formation of the cyclic pentamer. Pillar[6]arenes are selectively obtained when a bulky molecule with an electron-withdrawing group, such as chlorocyclohexane, is used as a solvent. In this chapter, we present an historical account of the synthesis of cyclic pentamers, pillar[5]arenes; cyclic hexamers, pillar[6]arenes; and cyclic oligomers larger than pillar[6]arenes, pillar[n]arenes.
Conformation and Planar Chirality of Pillar[n]arenes
Authors: Ogoshi Tomoki , Yamagishi Tada-aki
Published: October 2015

The study of the structure and conformational mobility of macrocyclic hosts is very important because these properties dramatically affect their host–guest and self-assembly abilities. Macrocyclic molecules can be divided into two categories according to their conformational mobility: conformationally flexible and fixed macrocyclic compounds. Phenolic units composed of pillar[n]arenes can rotate freely, therefore pillar[n]arenes are designated as conformationally flexible macrocyclic compounds. This chapter deals with the conformational mobility of pillar[n]arenes in the solution state. We also discuss the conformation of pillar[n]arenes in the crystal state. Although the conformational structure in the crystal state is a “snapshot” of one of the conformations of pillar[n]arenes, the structure observed will be the most stable conformation, and this provides useful information about the conformational properties of pillar[n]arenes. In this chapter, we discuss how the substituents on the rims, cavity size and number of rings of pillar[n]arenes dramatically influence the conformational mobility and the most stable structures of pillar[n]arenes in solution and the solid state.
Host–Guest Properties of Pillar[n]arenes
Authors: Ogoshi Tomoki , Yamagishi Tada-aki
Published: October 2015

Determination of the host–guest properties of macrocyclic compounds is essential because various macrocyclic host-based supramolecular assemblies can be constructed using their host–guest interactions. In this chapter, we discuss the host–guest properties of pillar[n]arenes. Extensive efforts by pillararene chemists have uncovered the host–guest properties of cyclic pentamers, pillar[5]arenes. The neutral guest recognition ability of pillar[5]arenes in organic solvents is an attractive characteristic among macrocyclic hosts. The molecular recognition ability of pillar[6]arenes has also been investigated. The complexation behavior of pillar[6]arenes with photo- and redox-active polyaromatics is important for constructing stimuli-responsive supramolecular assemblies. The recent development of the synthetic procedures for larger pillar[n]arene (n ≥ 7) homologs allows us to determine their host–guest properties. Further investigation into the host–guest ability of larger pillar[n]arene homologs is strongly encouraged because the host–guest abilities of these larger pillar[n]arene homologs are still unknown and should lead to new breakthroughs in pillar[n]arene chemistry.
Supramolecular Polymers based on Pillararenes
Authors: Ni Mengfei , Hu Xiao-Yu , Jiang Juli , Wang Leyong
Published: October 2015

The development of supramolecular polymers has expanded their applications in various fields such as biology, medicine and materials. Among the various types of supramolecular polymer, macrocycle-based supramolecular polymers receive great attention because of their useful properties and applications. Pillararenes are a novel class of macrocycles that have unique structures and host–guest properties. Significantly, pillararenes have been widely used in the construction of various supramolecular systems, especially supramolecular polymers. In this chapter, recent advances in pillararene-based supramolecular polymers are summarized in four sections: the self-assembly of mono-functionalized pillararenes (including self-inclusion complexes, cyclic dimers, and supramolecular polymers); linear supramolecular polymers based on pillararenes; supramolecular polymer networks based on pillararenes; and pillararene-based poly(pseudo)rotaxanes on polymer chains. These outstanding studies are focused on stimuli-responsive polymers, supramolecular gels, molecular devices, and the modification of polymeric materials, which show a bright future for pillararene-based supramolecular polymers.
Supramolecular Assemblies from Pillararenes (Micellar, Vesicular and Tubular Formations)
Authors: Zhang Huacheng , Zhao Yanli
Published: October 2015

Recent research developments in pillararene-based micellar, vesicular and tubular assemblies are highlighted in this chapter. The driving forces in the formation of these assemblies are first discussed. The solvent effect not only influences the solubility of the pillararene derivatives and their inclusion complexes used as building blocks for further assembling, but also provides the key driving force – solvophobic effect – for the formation of supramolecular assemblies in solution. In many assembling cases, the host–guest interactions can offer both the construction strategy and building blocks. Several synthetic strategies for fabricating pillararene-based micellar, vesicular and tubular architectures are described in detail. Furthermore, the potential applications of the resulting multidimensional supramolecular assemblies in the fields of smart materials, sensors, biomimicking and biomedicine are showcased. Finally, the challenges and prospects in this rising research area are discussed. This chapter not only reveals the advancement of pillararene-based micellar, vesicular and tubular assemblies, but also foresees future research directions of the area.
Pillararene-related Macrocycles
Authors: Schneebeli Severin T. , Strutt Nathan L. , Cheng Chuyang , Stoddart J. Fraser
Published: October 2015

Comprised of a [1n]paracyclophane framework, the backbones of pillararenes are among the most general and versatile building blocks in supramolecular chemistry. With the right type of substitution, the structural, electronic, optical, and supramolecular binding properties of such macrocycles can be fine-tuned, leading to a wealth of potential applications which include (i) the creation of molecular magnets, (ii) selective sensing of biologically relevant guests, (iii) cleanup of nuclear waste, and (iv) gas adsorption and storage, in addition to (v) the controlled synthesis of metal-directed or covalent nanotubes. This chapter presents several pillararene-related compounds, which encompass heteroatom-bridged [1n]cyclophanes, collarenes, cyclic iptycenes, asararenes, and amino-substituted pillararenes.
Enhanced sensing performance of supported graphitic carbon nitride nanosheets and the fabrication of electrochemiluminescent biosensors for IgG
Authors: Li Xiaojian , Ma Hongmin , Zhang Yong , Wu Dan , Lv Xiaohui , Du Bin , Wei Qin
Published: October 2015

A greatly enhanced ECL signal was obtained after the incorporation of C3N4 nanosheets into the NPG matrix and a label-free ECL immunosensor was proposed.
Using the inherent chemistry of the endothelin-1 peptide to develop a rapid assay for pre-transplant donor lung assessment
Authors: Sage Andrew T. , Bai Xiaohui , Cypel Marcelo , Liu Mingyao , Keshavjee Shaf , Kelley Shana O.
Published: October 2015

An assay for the lung transplant biomarker ET-1 is reported that allows levels of this molecule to be reported with record-breaking speed and sensitivity.
A colorimetric probe to determine Pb2+ using functionalized silver nanoparticles
Authors: Noh Kwon-Chul , Nam Yun-Sik , Lee Ho-Jin , Lee Kang-Bong
Published: October 2015

A hypothetical coordination bond between Pb2+ ions and MTT bound to a AgNP.
A novel aptasensor for thrombin detection based on alkaline phosphatase decorated ZnO/Pt nanoflowers as signal amplifiers
Authors: Lv J. J. , Yang Z. H. , Zhuo Y. , Yuan R. , Chai Y. Q.
Published: October 2015

A simple and sensitive sandwich-type aptasensor based on ALP and ZnO/Pt nanocomposites as signal enhancers has been developed for thrombin detection.
A biosensor based on gold nanoparticles stabilized in poly(allylamine hydrochloride) and decorated with laccase for determination of dopamine
Authors: Silva Tânia Regina , Vieira Iolanda Cruz
Published: October 2015

A new biosensor for dopamine determination based on laccase immobilized in gold nanoparticles is reported.
A dual-mode colorimetric and fluorometric “light on” sensor for thiocyanate based on fluorescent carbon dots and unmodified gold nanoparticles
Authors: Zhao Dan , Chen Chuanxia , Lu Lixia , Yang Fan , Yang Xiurong
Published: October 2015

A novel, highly sensitive and selective dual-readout (colorimetric and fluorometric) sensor based on fluorescent carbon dots (CDs) and unmodified gold nanoparticles (AuNPs) for the detection of thiocyanate (SCN−) was proposed.
Click synthesis of boronic acid-functionalized molecularly imprinted silica nanoparticles with polydopamine coating for enrichment of trace glycoproteins
Authors: Sun Lixiang , Lin Danhong , Lin Guowei , Wang Ling , Lin Zian
Published: October 2015

Novel boronic acid-functionalized molecularly imprinted silica nanoparticles with polydopamine coating were prepared and applied to the recognition and enrichment of glycoproteins.
An electrochemical biosensor for the activity assay of polynucleotide kinase and inhibitor screening
Authors: Zhang Qingming , Li Xue , Li Bingchen , Yin Huanshun , Ai Shiyun
Published: October 2015

A sensitive and selective electrochemical biosensor was fabricated for polynucleotide kinase (PNK) activity assay and inhibitor screening based on phos-tag-biotin mediated double signal amplification.
A cyanine-derived “turn-on” fluorescent probe for imaging nitroreductase in hypoxic tumor cells
Authors: Xue Cong , Lei Yingjie , Zhang Sichun , Sha Yaowu
Published: October 2015

A new “turn-on” fluorescent probe, composed of a protected phenol group with ap-nitrobenzyl moiety that functions as a latent donor and conjugated with two benzo[f]indolinium acceptors, was developed and applied for imaging nitroreductase (NTR) in hypoxic tumor cells.
Magnetic ELISA of aflatoxin B1 – pre-concentration without elution
Authors: Petrakova A. V. , Urusov A. E. , Zherdev A. V. , Dzantiev B. B.
Published: October 2015

This study proposes an ELISA variant based on the application of highly dispersed (average diameter – 10 nm) magnetic iron oxide nanoparticles as carriers for the adsorbable antibodies.
Dendrimer grafted nanoporous silica as a new coating for headspace solid-phase microextraction fibers
Authors: Saeedi Iman , Hashemi Payman , Ramezani Zahra , Badiei Alireza
Published: October 2015

Preparation of a SBA-15 silica-supported dendrimer.
Geometrically controlled preparation of various cell aggregates by droplet-based microfluidics
Authors: Wang Yaolei , Zhao Lei , Tian Chang , Ma Chao , Wang Jinyi
Published: October 2015

We present a microfluidic droplet-based approach that can easily produce different shapes of cell aggregates in Ca-alginate microparticles by changing alginate and CaCl2 concentrations.
Magnetic nanoparticle solid phase extraction-HPLC-UV for determination of deoxynivalenol in wheat flour
Authors: Karami-Osboo R. , Maham M. , Mirabolfathy M.
Published: October 2015

Deoxynivalenol has been associated with human gastroenteritis and its presence in foods can cause clinical or subclinical manifestations in humans and animals.
Determination of nanoparticle localisation within subcellular organelles in vitro using Raman spectroscopy
Authors: Efeoglu Esen , Keating Mark , McIntyre Jennifer , Casey Alan , Byrne Hugh J.
Published: October 2015

Raman spectroscopy with the aid of Multivariate Analysis techniques is a powerful analytical tool to determine the localisation of nanoparticles and their local environment within subcellular organelles.
Gelation by supramolecular dimerization of mono(urea)s
Authors: Hooper Abigail E. , Kennedy Stuart R. , Jones Christopher D. , Steed Jonathan W.
Published: October 2015

Mono-ureido salicylic acid derivatives form hydrogen bonded dimers that mimic the gelation behaviour of covalently linked bis(urea)s.
Bioinspired pH and magnetic responsive catechol-functionalized chitosan hydrogels with tunable elastic properties
Authors: Ghadban Ali , Ahmed Anansa S. , Ping Yuan , Ramos Ricardo , Arfin Najmul , Cantaert Bram , Ramanujan Raju V. , Miserez Ali
Published: October 2015

We have developed pH- and magnetic-responsive hydrogels that are stabilized by both covalent bonding and catechol/Fe3+ ligands.
Carbon nanodot decorated graphitic carbon nitride: new insights into the enhanced photocatalytic water splitting from ab initio studies
Authors: Gao Guoping , Jiao Yan , Ma Fengxian , Jiao Yalong , Waclawik Eric , Du Aijun
Published: October 2015

Density functional theory calculations reveal that hybrid carbon nanodots and graphitic carbon nitride can form a type-II van der Waals heterojunction, leading to significant reduction of band gap and enhanced visible light response.
Investigation of band gap narrowing in nitrogen-doped La2Ti2O7 with transient absorption spectroscopy
Authors: Yost Brandon T. , Cushing Scott K. , Meng Fanke , Bright Joeseph , Bas Derek A. , Wu Nianqiang , Bristow Alan D.
Published: October 2015

Doping a continuum of states is shown to preserve excited carrier lifetimes and mobility, increasing photocatalysis across the UV-visible spectrum.
Conformational changes in the heat-induced crystallization of poly(2-isopropyl-2-oxazoline) in the solid state
Authors: Sun Shengtong , Wu Peiyi
Published: October 2015

The dynamic solid-state crystallization process of poly(2-isopropyl-2-oxazoline) was studied by vibrational spectroscopy in combination with two-dimensional correlation analysis, and is shown to be mainly achieved by the lateral distortion of coplanar side chains together with the torsion of the backbone through C–N linkages.
Assessing the effect of reducing agents on the selective catalytic reduction of NOx over Ag/Al2O3 catalysts
Authors: D'Agostino Carmine , Chansai Sarayute , Bush Isabelle , Gao Chensong , Mantle Mick D. , Hardacre Christopher , James Stuart L. , Gladden Lynn F.
Published: October 2015

The selective catalytic reduction (SCR) of NOx in the presence of different reducing agents over Ag/Al2O3 prepared by wet impregnation was investigated by probing catalyst activity and using NMR relaxation time analysis.
NOxdegradation in a continuous large-scale reactor using full-size industrial photocatalytic tiles
Authors: Bianchi C. L. , Pirola C. , Galli F. , Vitali S. , Minguzzi A. , Stucchi M. , Manenti F. , Capucci V.
Published: October 2015

A gas-flow photoreactor working with a UV-A lamp or under direct sunshine to test materials of large size.
Regulation of the pore size by shifting the coordination sites of ligands in two MOFs: enhancement of CO2 uptake and selective sensing of nitrobenzene
Authors: Parshamoni Srinivasulu , Telangae Jyothi , Konar Sanjit
Published: October 2015

Two MOFs were constructed using azine functionalized and pyridyl based neutral ligands along with a V-shaped sdb linker, and exhibit highly efficient luminescence sensing for nitrobenzene and sorption selectivity for CO2 over CH4.
Versatile structures of group 13 metal halide complexes with 4,4′-bipy: from 1D coordination polymers to 2D and 3D metal–organic frameworks
Authors: Sevastianova Tatiana N. , Bodensteiner Michael , Maulieva Albina F. , Davydova Elena I. , Virovets Alexander V. , Peresypkina Eugenia V. , Balázs Gábor , Graßl Christian , Seidl Michael , Scheer Manfred , Frenking Gernot , Berezovskaya Ekaterina A. , Kazakov Igor V. , Khoroshilova Olesya V. , Timoshkin Alexey Y.
Published: October 2015

The nature of the group 13 metal halides strongly affects the structure of their complexes with 4,4′-bipy.
Thermodynamics of the structural transition in metal–organic frameworks
Authors: Rodriguez J. , Beurroies I. , Coulet M.-V. , Fabry P. , Devic T. , Serre C. , Denoyel R. , Llewellyn P. L.
Published: October 2015

A thermodynamic study of the structural large-pore (LP) to narrow pore (NP) transition in various Metal Organic Frameworks (MOFs) is presented.
Narrowing the gap: from semiconductor to semimetal in the homologous series of rare-earth zinc arsenides RE2−yZn4As4·n(REAs) and Mn-substituted derivatives RE2−yMnxZn4−xAs4·n(REAs) (RE = La–Nd, Sm, Gd)
Authors: Lin Xinsong , Tabassum Danisa , Mar Arthur
Published: October 2015

Condensing rocksalt-type [REAs] slabs into thicker blocks narrows the gap between valence and conduction bands within a homologous series of rare-earth-deficient ternary arsenides.
Importance of the hydrogen route in up-scaling electrosynthesis for microbial CO2reduction
Authors: Blanchet Elise , Duquenne François , Rafrafi Yan , Etcheverry Luc , Erable Benjamin , Bergel Alain
Published: October 2015

Microbial electrochemical reduction of CO2was carried out under two different applied potentials, −0.36 V and −0.66 Vvs.SHE, using a biological sludge as the inoculum.
Biodegradation of different petroleum hydrocarbons by free and immobilized microbial consortia
Authors: Shen Tiantian , Pi Yongrui , Bao Mutai , Xu Nana , Li Yiming , Lu Jinren
Published: October 2015

The biodegradation rate of crude oil by semi-coke immobilized microbial consortia was higher than that by free microbial consortia.
Naringenin ameliorates renal and platelet purinergic signalling alterations in high-cholesterol fed rats through the suppression of ROS and NF-κB signaling pathways
Authors: Chtourou Yassine , Kamoun Zeineb , Zarrouk Wissem , Kebieche Mohammed , Kallel Choumous , Gdoura Radhouane , Fetoui Hamadi
Published: October 2015

Thein vivoprotective effect of Naringenin (NGEN), a natural flavonoid aglycone of naringin, against the mitochondrial dysfunction and oxidative stress induced by high cholesterol levels in the renal tissue.
Efficient solvent-free cationization of alkylpolyglycoside based surfactant compositions using natural glycine betaine
Authors: Pérusse D. , Guégan J. P. , Rolland H. , Guilbot J. , Benvegnu T.
Published: October 2015

Solvent-free transformation of alkylpolyglycosides into 100% bio-based cationic sugar surfactants proceeded efficiently using a natural glycine betaine-derived cationizing agent.
tRNA – the golden standard in molecular biology
Authors: Barciszewska Mirosława Z. , Perrigue Patrick M. , Barciszewski Jan
Published: October 2015

Transfer RNAs (tRNAs) represent a major class of RNA molecules for which primary, secondary, and tertiary structures are known.
Ti–Sn–O composite oxides coated with N-doped carbon exhibiting enhanced lithium storage performance
Authors: Zhang Liu-Xia , Li Tao , Bai Rui-Lin , Qi Yong-Xin , Lun Ning , Bai Yu-Jun
Published: October 2015

The long-term cycling performance of S1-400C1 and TiO2-400C1 at different rates.
Porous CuO nanostructure as a reusable catalyst for oxidative degradation of organic water pollutants
Authors: Deka Pangkita , Deka Ramesh C. , Bharali Pankaj
Published: October 2015

Porous CuO nanostructure exhibits high catalytic activity for the degradation of methylene blue and methyl orange in the presence of H2O2.
Phosphinic acid-promoted addition reaction of isocyanides to (Z)-hydroximoyl chlorides: efficient synthesis of α-(hydroxyimino)amides
Authors: Soeta Takahiro , Takashita Suguru , Sakata Yoko , Ukaji Yutaka
Published: October 2015

The reaction of (Z)-hydroximoyl chlorides with isocyanides promoted by phosphinic acid in the presence of triethylamine proceeds smoothly to afford α-(hydroxyimino)amides in good to high yields.
Metal-free Brønsted acid mediated synthesis of fully substituted thiophenes via chemo- and regioselective intramolecular cyclization of α,α′-bis(β-oxodithioesters) at room temperature
Authors: Ramulu B. Janaki , Koley Suvajit , Singh Maya Shankar
Published: October 2015

Metal-free Brønsted acid mediated synthesis of tetrasubstituted thiophenes via intramolecular cyclization of α,α′-bis(β-oxodithioesters) is devised at room temperature.
Multifunctional core–shell Co–SiO2 nanowires via electrodeposition and sol–gel techniques
Authors: Martín-García Laura , Ruiz-Gómez Sandra , Abuín Manuel , Montaña Yaiza , Carmona Noemi , Pérez Lucas
Published: October 2015

In this work we propose a new strategy for the synthesis of multifunctional nanowires using a combination of sol–gel and electrodeposition techniques. We have developed a recoverable pH nanosensor as proof of concept.
Dispersion analysis of carbon nanotubes, carbon onions, and nanodiamonds for their application as reinforcement phase in nickel metal matrix composites
Authors: Reinert L. , Zeiger M. , Suárez S. , Presser V. , Mücklich F.
Published: October 2015

Low aspect ratios and sp3 hybridization of carbon nanoparticles benefit both, small agglomerate sizes in ethylene glycol and nickel composites.
Insights into the Morita–Baylis–Hillman reaction of isomeric dibenzofuran carbaldehydes: a theoretical and mass spectral study
Authors: Yempala Thirumal , Davalgar Vijay Darshan , Gayatri Gaddamanugu , Sripadi Prabhakar , Kantevari Srinivas
Published: October 2015

Systematic theoretical and mass spectral investigations on the faster Morita–Baylis–Hillman (MBH) reaction of dibenzofuran-4-carbaldehyde (2) compared to its isomer, dibenzofuran-2-carbaldehyde (1) are described.
Synthesis of Sn–Co@PMMA nanowire arrays by electrodeposition and in situ polymerization as a high performance lithium-ion battery anode
Authors: Meng Haowen , Yang Hongyan , Yu Xiaohui , Dou Peng , Ma Daqian , Xu Xinhua
Published: October 2015

Transition metals have attracted much attention due to their high energy density in lithium-ion batteries (LIBs).
A complementary electrochromic device based on W18O49 nanowire arrays and Prussian blue thin films
Authors: Lu Chih-Hao , Hon Min-Hsiung , Kuan Chi-Yun , Leu Ing-Chi
Published: October 2015

Tungsten oxides (W18O49) nanowire arrays as effective electrochromic working electrodes were fabricated on seed-free FTO glasses through a facile solvothermal process.
Electrochemical detection of epinephrine using a biomimic made up of hemin modified molecularly imprinted microspheres
Authors: Tadi Kiran Kumar , Motghare Ramani V. , Ganesh V.
Published: October 2015

Electrochemical detection of epinephrine, an important neurotransmitter in mammalian central nervous system, is demonstrated in this study using a simple bio-mimic prepared by hemin modified microspheres of a molecularly imprinted polymer.
Luminescent single molecule magnets of a series of β-diketone dysprosium complexes
Authors: Chu Wenyi , Sun Qingyan , Yao Xu , Yan Pengfei , An Guanghui , Li Guangming
Published: October 2015

A series of three β-diketone mononuclear Dy(iii) complexes exhibit bifunctional properties of single molecule magnet and luminescence.
Guanine chemiluminescent biosensor capable of rapidly sensing mercury in a sample
Authors: Kwon M. , Park Y. , Lee J. H.
Published: October 2015

Using DNA aptamer (T–Hg2+–T hairpin-DNA) and guanine chemiluminescene detection, a highly sensitive biosensor was developed for the rapid quantification and monitoring of Hg2+ in drinking water.
In situ construction of α-Bi2O3/g-C3N4/β-Bi2O3composites and their highly efficient photocatalytic performances
Authors: Jiang Hai-Ying , Liu Guigao , Wang Tao , Li Peng , Lin Jun , Ye Jinhua
Published: October 2015

In this study, α-Bi2O3/g-C3N4/β-Bi2O3composites were constructed by anin situmethod in one step from α-Bi2O3and g-C3N4.
Highly selective one pot synthesis and biological evaluation of novel 3-(allyloxy)-propylidene acetals of some natural terpenoids
Authors: Devendar Ponnam , Kumar Arigari Niranjana , Bethu M. S. , Zehra Amtul , Pamanji R. , Venkateswara Rao J. , Tiwari Ashok Kumar , Sridhar Balasubramanian , Satya Srinivas K. V. N. , Kumar J. Kotesh
Published: October 2015

Synthesis, in vitro antiproliferative and α-glucosidase inhibitory activities of novel 3-(allyloxy)-propylidene acetals of some natural terpenoids.
CuS hierarchical hollow microcubes with improved visible-light photocatalytic performance
Authors: Cai Liyuan , Sun Yangang , Li Wenyao , Zhang Wenlong , Liu Xijian , Ding Derun , Xu Ningning
Published: October 2015

CuS hierarchical and hollow micro/nanocubes (HHCs), assembled with plenty of nanosheet-like building units, were fabricated by a simple Kirkendall-based process and showed improved photocatalytic activity in the degradation of methylene blue (MB).
Electrochemical study of supercapacitor performance of polypyrrole ternary nanocomposite electrode by fast Fourier transform continuous cyclic voltammetry
Authors: Salehifar Nahideh , Shayeh Javad Shabani , Ranaei Siadat Seyed Omid , Niknam Kaveh , Ehsani Ali , Kazemi Movahhed Siavash
Published: October 2015

The supercapacitive behavior of polypyrrole/reduced graphene oxide/Au nanoparticles as a ternary composite electrode was studied by CV, galvanostatic charge/discharge, EIS and fast Fourier transform continuous cyclic voltammetry techniques.
Hyaluronan/Ru(ii)-cyclodextrin supramolecular assemblies for colorimetric sensor of hyaluronidase activity
Authors: Hu Ping , Chen Yong , Liu Yu
Published: October 2015

A hyaluronidase-induced colorimetric change was found in a hyaluronan/Ru(ii)-cyclodextrin supramolecular assembly under a laser (532 nm) irradiation.
Improving thermo-electrochemical cell performance by constructing Ag–MgO–CNTs nanocomposite electrodes
Authors: Qian Weijin , Li Mengjie , Chen Lihong , Zhang Jianghui , Dong Changkun
Published: October 2015

Ag–MgO–CNTs nanocomposites were conveniently prepared using a electrophoretic deposition method, leading to significantly improved thermo-electrochemical cell performances.
Synthesis of highly emissive 1,8-diaryl anthracene derivatives and fabrication of their micro/nanostructures
Authors: Agarwal Neeraj , Patil Manish , Patil Mahendra
Published: October 2015

Highly emissive 1,8-diaryl anthracene derivatives for OLEDs were synthesized and characterized, and the surfactant assisted formation of microplates and nanowires is shown.
Homogeneous vertical ZnO nanorod arrays with high conductivity on an in situ Gd nanolayer
Authors: Flemban Tahani H. , Singaravelu Venkatesh , Sasikala Devi Assa Aravindh , Roqan Iman S.
Published: October 2015

We demonstrate a novel, one-step, catalyst-free method for the production of size-controlled vertical highly conductive ZnO nanorod arrays with highly desirable characteristics on anin situuniform Gd nanolayer using pulsed laser deposition.
A DFT-D study on the interaction between lactic acid and single-wall carbon nanotubes
Authors: Najafi Chermahini Alireza , Teimouri Abbas , Farrokhpour Hossein
Published: October 2015

Density functional theory (DFT) was used to investigate the adsorption of lactic acid molecule on the surface of (4,4), (5,5), (6,6) and (7,7) single-walled carbon nanotubes (SWCNTs).
SDBS-assisted hydrothermal synthesis of flower-like Ni–Mo–S catalysts and their enhanced hydrodeoxygenation activity
Authors: Wang Weiyan , Tan Song , Zhu Guohua , Wu Kui , Tan Liang , Li Yingze , Yang Yunquan
Published: October 2015

Flower-like Ni–Mo–S was prepared by SDBS-assisted hydrothermal synthesis and exhibited high activity in p-cresol HDO: the reaction rate constant k reached to 4.6 × 10−2 mL per (s per g catalyst) at 275 °C and the deoxygenation degree raise to 96.9% for 6 h.
A two-step method for preparing Li4Ti5O12–graphene as an anode material for lithium-ion hybrid capacitors
Authors: Xu Nansheng , Sun Xianzhong , Zhang Xiong , Wang Kai , Ma Yanwei
Published: October 2015

Li4Ti5O12–graphene anode was prepared by a two-step method and applied to a lithium-ion hybrid capacitor which could deliver an energy density of 6.6 W h kg−1 based on the total mass of the whole device.
Microfluidic alignment and trapping of 1D nanostructures – a simple fabrication route for single-nanowire field effect transistors
Authors: Gang A. , Haustein N. , Baraban L. , Weber W. , Mikolajick T. , Thiele J. , Cuniberti G.
Published: October 2015

Microfluidic trapping of 1D nanostructures at predefined positions for subsequent facile contacting via UV-lithography.
Enhanced red emission in Ca0.5La(MoO4)2:Eu3+ phosphors for UV LEDs
Authors: Shi Yurong , Liu Bitao , Liu Bo , Li Chunyang , Wang Zhenling
Published: October 2015

La3+ was introduced into CaMoO4 to form a novel compound with the chemical formula Ca0.5La(MoO4)2 and was synthesized by a solid-state reaction method.
Modeling quantum nuclei with perturbed path integral molecular dynamics
Authors: Poltavsky Igor , Tkatchenko Alexandre
Published: October 2015

Here we combine perturbation theory with the Feynman–Kac imaginary-time path integral approach to quantum mechanics for modeling quantum nuclear effects.
Cooperative supramolecular polymerization of an amine-substituted naphthalene-diimide and its impact on excited state photophysical properties
Authors: Kar Haridas , Gehrig Dominik W. , Allampally Naveen Kumar , Fernández Gustavo , Laquai Frédéric , Ghosh Suhrit
Published: October 2015

A donor–acceptor–donor (D–A–D) type naphthalene-diimide (NDI-H) chromophore exhibits highly cooperative J-aggregation leading to nanotubular self-assembly and gelation in n-decane.
Synergistic catalysis: cis-cyclopropanation of benzoxazoles
Authors: Meazza Marta , Light Mark E. , Mazzanti Andrea , Rios Ramon
Published: October 2015

3 catalytic cycles working in concert to generate cis cyclopropanes in good yields and stereoselectivities!
Electric field generation of Skyrmion-like structures in a nematic liquid crystal
Authors: Cattaneo Laura , Kos Žiga , Savoini Matteo , Kouwer Paul , Rowan Alan , Ravnik Miha , Muševič Igor , Rasing Theo
Published: October 2015

We report the generation of stable Skyrmion-like structures in a thin nematic liquid crystal film on chemically patterned patchy surfaces.
MoS2 supported single platinum atoms and their superior catalytic activity for CO oxidation: a density functional theory study
Authors: Du Chunmiao , Lin Haiping , Lin Bin , Ma Zeyao , Hou Tingjun , Tang Jianxin , Li Youyong
Published: October 2015

The formation of a square-planar 16-electron complex during CO oxidation on a MoS2 supported single platinum atom catalyst.
High electrical conductivity of double-walled carbon nanotube fibers by hydrogen peroxide treatments
Authors: Morelos-Gómez A. , Fujishige M. , Magdalena Vega-Díaz S. , Ito I. , Fukuyo T. , Cruz-Silva R. , Tristán-López F. , Fujisawa K. , Fujimori T. , Futamura R. , Kaneko K. , Takeuchi K. , Hayashi T. , Kim Y. A. , Terrones M. , Endo M. , Dresselhaus M. S.
Published: October 2015

H2O2treatment can decrease the electrical resistivity of double walled carbon nanotube fibers. The experimental observations suggest that small diameter carbon nanotubes are removed from the fiber sample.
Gallium arsenide phosphide grown by close-spaced vapor transport from mixed powder sources for low-cost III–V photovoltaic and photoelectrochemical devices
Authors: Greenaway Ann L. , Davis Allison L. , Boucher Jason W. , Ritenour Andrew J. , Aloni Shaul , Boettcher Shannon W.
Published: October 2015

Close-spaced vapor transport provides GaAs1−xPx with controlled composition and competitive electronic properties.
RGDS covalently surfaced nanodiamond as a tumor targeting carrier of VEGF-siRNA: synthesis, characterization and bioassay
Authors: Cui Chunying , Wang Yaonan , Zhao Wen , Yang Kaikai , Jiang Xueyun , Li Shan , Zhao Ming , Song Yuanbo , Peng Shiqi
Published: October 2015

A novel delivery system consisting of a covalent conjugate of NDCO-RGDS and VEGF-siRNA, NDCO-RGDS/VEGF-siRNA, is presented.
Negative magnetoconductance effects in amorphous copper phthalocyanine thin film: trap-assisted bipolaron formation
Authors: Chen Lixiang , Lei Yanlian , Zhang Qiaoming , Xiong Zuhong
Published: October 2015

We developed the bipolaron model to explain the negative MC in an ITO/CuPc/Al single layer device, suggesting that traps existing in CuPc thin film can assist the formation of bipolarons through lowering the formation energy.
Crystal structure and thermoelectric properties of Sr–Mo substituted CaMnO3: a combined experimental and computational study
Authors: Srivastava D. , Azough F. , Freer R. , Combe E. , Funahashi R. , Kepaptsoglou D. M. , Ramasse Q. M. , Molinari M. , Yeandel S. R. , Baran J. D. , Parker S. C.
Published: October 2015

Experimental and modelling investigation of Sr/Mo (co-)doped CaMnO3 highlighted the role of Mn3+ and presence of domain boundaries in thermal transport and thermoelectric properties.
Synthesis and application of benzooxadiazole-based conjugated polymers in high performance phototransistors
Authors: Kang Chong , Zhang Jicheng , Dong Huanli , Hu Wenping , Bo Zhishan
Published: October 2015

Benzooxadiazole and benzothiadiazole based conjugated polymers have been synthesized and used for the fabrication of high performance phototransistors.
CHIP Deutschland: Einfluss eines Lebensstil-Schulungsprogramms zur Primär- und Sekundärprävention von Typ 2 Diabetes auf das Ernährungsverhalten und die Bedeutung sozialkognitiver Variablen
Authors: Tigges C. , Wennehorst K. , Saliger B. , Englert H.
Published: October 2015

Hintergrund: Eine Ernährungsweise mit moderater Fett- und hoher Ballaststoffzufuhr kann das metabolische Risiko bei Diabetikern senken. Die Studie untersucht, ob sich das Ernährungsverhalten der Probanden durch ein intensives Lebensstil-Schulungsprogramm verbessert und welche sozial-kognitiven Variablen als Einflussfaktoren für die Änderung des Ernährungsverhaltens und einer möglichen Gewichtsreduktion identifiziert werden können.

Patienten und Methoden: Es wurden Probanden mit manifestem Diabetes oder einem erhöhten Erkrankungsrisiko eingeschlossen (Intervention: N=43; Kontrolle: N=40). Der Studienzeitraum umfasste die Interventionsphase mit einem einführenden, individuellen Coaching, einem 8-wöchigen intensiven Lebensstilprogramm und einem persönlichen Abschlusscoaching sowie eine anschließende 10-monatige Follow-Up-Phase. Neben anthropometrischen, Vital- und Laborparametern (z. B. Gewicht, HbA1c, FINDRISK) wurden die HAPA-Verhaltensstadien (Unentschiedene, Vorbereitende, Aktive), die Ergebniserwartung, Handlungsplanung und Selbstwirksamkeit in Bezug auf das Ernährungsverhalten erfasst.

Ergebnisse: Das Gewicht reduzierte sich durch die Intervention. Ernährungsverhalten, Selbstwirksamkeit, Handlungsplanung und Ergebniserwartung verbesserten sich in der Interventions-, nicht aber in der Kontrollgruppe. In der Interventionsgruppe wurde ein Zusammenhang zwischen der Selbstwirksamkeit nach 8 Wochen und der Gewichtsreduktion verzeichnet.

Diskussion: Die Ergebnisse zeigen, dass das Risikoprofil der Probanden durch die Intervention verbessert werden konnte. Insbesondere eine gesteigerte Selbstwirksamkeit scheint die Etablierung präventiver Verhaltensweisen beim T2D zu unterstützen.

Schlussfolgerung: Lebensstilcoachings zur langfristigen Verhaltensänderung sollten sich stärker auf die Volitionsphase konzentrieren und die Selbstwirksamkeit der Teilnehmer stärken.
Type I IFN induces protein ISGylation to enhance cytokine expression and augments colonic inflammation
Authors: Fan Jun-Bao , Miyauchi-Ishida Sayuri , Arimoto Kei-ichiro , Liu Dan , Yan Ming , Liu Chang-Wei , Győrffy Balázs , Zhang Dong-Er
Published: October 2015

Significance

This study demonstrates that the formation of covalent conjugates of IFN-stimulated gene 15 (ISG15) to many cellular proteins, a process known as “protein ISGylation,” exacerbates experimental colitis and colitis-associated cancer in mouse models. Additional mechanistic studies uncovered a previously unidentified regulation of macrophage activity by protein ISGylation through the ubiquitin proteasome system–reactive oxygen species–p38 axis. Using available gene-expression data, we show that higher expression of ubiquitin-activating enzyme E1 homolog is significantly correlated with worse survival in human patients with colorectal cancer. Thus, our work identified, for the first time to our knowledge, an important role of protein ISGylation in regulating colonic inflammation and its related malignant progression.
Molecular pathways for defect annihilation in directed self-assembly
Authors: Hur Su-Mi , Thapar Vikram , Ramírez-Hernández Abelardo , Khaira Gurdaman , Segal-Peretz Tamar , Rincon-Delgadillo Paulina A. , Li Weihua , Müller Marcus , Nealey Paul F. , de Pablo Juan J.
Published: October 2015

Significance

A molecular model is used to calculate the free energy of formation of ordered and disordered copolymer morphologies. We rely on advanced methodologies to identify the minimum free energy pathways that connect such states of the material. Our predictions for defect formation and annealing are compared with experimental observations. Our results provide a detailed molecular view of isolated block copolymer defects, which measure approximately 5 nm and represent isolated events in large areas. They are true “needles in the hay stack” that can only be studied by concerted molecular simulations and dedicated access to production-level fabrication tools. We show that defect annealing is an activated process, where defects are eliminated by operating near the order−disorder transition.
Predictors of Urine Drug Testing for Patients with Chronic Pain: Results from a National Cohort of U.S. Veterans
Authors: Morasco Benjamin J. , Peters Dawn , Krebs Erin E. , Kovas Anne E. , Hart Kyle , Dobscha Steven K.
Published: October 2015

Background

Urine drug testing (UDT) is recommended for all patients who initiate chronic opioid therapy (COT) for the treatment of chronic pain; however, it is infrequently utilized. Some prior research has identified factors that may predict UDT, but studies have been limited. The purpose of this study is to examine the rate and predictors of UDT among a national sample of patients with chronic pain who had new initiations of COT.

Methods

Administrative data were examined for all veterans receiving medical care at Department of Veterans Affairs medical facilities who had new initiations of chronic opioid therapy (COT) during fiscal year 2011.

Results

Nineteen percent of patients who had new initiations of COT for chronic noncancer pain received UDT within 90 days of starting opioids. In adjusted analyses, patient-level factors that predicted increased likelihood of UDT included male gender (risk ratio [RR] = 1.23, 95% confidence interval [CI] = 1.02–1.49), Black race (RR = 1.20, 95% CI = 1.06–1.37), divorced/separated marital status (RR = 1.13, 95% CI = 1.02–1.25), higher pain intensity (RR = 1.03, 95% CI = 1.01–1.05), comorbid substance use disorder (RR = 1.42, 95% CI = 1.27–1.60), posttraumatic stress disorder (PTSD) (RR = 1.14, 95% CI = 1.01–1.29), bipolar disorder or schizophrenia (RR = 1.29, 95% CI = 1.08–1.53), having received UDT prior to initiating opioid therapy (RR = 1.43, 95% CI = 1.26–1.62), and a higher baseline opioid dose (RR = 1.38–1.81, 95% CIs = 1.20–1.58, 1.57–2.09). Age was also associated with UDT, in a nonlinear manner. Several factors were associated with lower likelihood of UDT, including living in a highly rural setting (RR = 0.62, 95% CI = 0.29–0.99), having a VA service–connected disability (RR = 0.85–0.89, 95% CIs = 0.75–0.97, 0.79–0.99), and having a nurse practitioner or physician assistant as one's primary care clinician (RR = 0.72, 95% CI = 0.61–0.85).

Conclusions

Urine drug testing was conducted with 19% of patients who had new initiations of COT. Factors that predicted UDT were multifaceted and included patient and clinician variables. Multidimensional system-level interventions may be needed to facilitate widespread implementation of UDT.
#GomorraLaSerie: Converging audience and enhanced authorship on twenty-first-century Italian screens
Authors: Erbaggio Pierluigi
Published: October 2015

Based on Roberto Saviano's bookGomorra(2006), production of the TV seriesGomorra – La serie(2014) was met with scepticism as many feared it would glamorise organised crime and, consequently, attract young people toward Camorra affiliation. The series' bleak portrayal of criminals and criminality was offered as a response to such concerns. Despite the preoccupations,Gomorra–La seriewas hugely successful and, because of its quality, was sold to other countries. In Italy, the series' success can be measured by the popularity of its Twitter hashtag #GomorraLaSerie. Engaged with Henry Jenkins' theories of media convergence and based on a corpus of tweets bearing this official hashtag, this article proposes a quantitative analysis and advances conclusions regarding the Italian TV audience and second-screen viewing practices. Additionally, through a qualitative study of Saviano's tweets about the series, it examines the writer's use of the social media platform as a tool of narrative continuity. Finally, the article highlights a few examples of fan-generated media and concludes with remarks regarding Saviano's problematic position at the centre of a transmedia object.
The biodiversity of temperate extensive green roofs – a review of research and practice
Authors: Thuring Christine , Grant Gary
Published: October 2015

From its beginnings in Germany in the twentieth century, a thriving extensive green roof industry has become established in many countries in temperate climates. Based upon the success of the industry, and with an expectation that this technology will be adopted in other climates, this review of the ecological research of extensive green roofs aims to evaluate the application of this knowledge. The modern extensive green roof is the product of research in the 1970s by German green roof pioneers; the selection of suitable species from analogue habitats led to green roof vegetation dominated by drought tolerant taxa. The commercial success of extensive green roof systems can be attributed to engineering and horticultural research, to policy mechanisms in some places, and to a market that encourages innovation, and the origins in ecological design are now easily overlooked. Some of the work reviewed here, including the classification of spontaneous roof vegetation into plant communities, is not widely known due to its confinement to the German literature. By re-visiting the history of the extensive green roof and reviewing the ecological research that has contributed to our understanding of it, the intention is, for this paper, to inform those considering green roofs in other climatic regions, to apply an ecologically informed approach in using local knowledge for developing installations that are suited to the bioregion in which they occur. Finally the paper considers some future directions for research and practice.
The politics of copresence: an ecological approach to resistance in top-down participation
Authors: Berger Mathieu
Published: October 2015

The globally unfavourable assessment of state-generated forms of participation often extends to the citizens’ talk in itself. Today, it is the very idea that ordinary citizens are able to express themselves in a relevant and fruitful way during technical and tightly framed public discussions that seems to be called into question. How do citizens respond to the difficulty to express their ideas or concerns about their neighbourhood, in a forum where they have been invited to do so? What are their reactions to repeated failure to impact the discussions and the projects? ‘Exit’, ‘voice’ and ‘loyalty’ are three typical reactions to dissatisfaction. This paper will describe a fourth option, ‘internal resistance’. Following this option, citizens, while conserving appearances of loyalty, resituate themselves in the interaction through tactical moves that are found to each illustrate one of the main principles of Goffman's conception of the ‘interaction order’: focusing, mutuality, equality.
SIM.EM-S11 : High Value Resistance Comparison
Authors: Castro B I , Sanchez H , Kraft M , Jarrett D
Published: October 2015

This is a report of the results of the Interamerican Metrology System (SIM) comparison on high resistance values, performed to compare the measurement capabilities of NIST and ICE-LMVE and for establishing the degree of equivalence between those laboratories.

During February 2014, two resistance standards were used as traveling standards for measurements in those countries, with NIST-USA acting as pilot laboratory. Results for five measurement points are presented as errors relative to a comparison reference value together with their uncertainty.

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.

The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
PRIMUS: improving pedigree reconstruction using mitochondrial and Y haplotypes
Authors: Staples Jeffrey , Ekunwe Lynette , Lange Ethan , Wilson James G. , Nickerson Deborah A. , Below Jennifer E.
Published: October 2015

Summary: PRIMUS is a pedigree reconstruction algorithm that uses estimates of genome-wide identity by descent to reconstruct pedigrees consistent with observed genetic data. However, when genetic data for individuals within a pedigree are missing, often multiple pedigrees can be reconstructed that fit the data. We report a major expansion of PRIMUS that uses mitochondrial (mtDNA) and non-recombining Y chromosome (NRY) haplotypes to eliminate many pedigree structures that are inconsistent with the genetic data. We demonstrate that discordances in mtDNA and NRY haplotypes substantially reduce the number of potential pedigrees, and often lead to the identification of the correct pedigree.

Availability and Implementation: We have implemented PRIMUS updates in PERL and it is available at primus.gs.washington.edu.

Contact:  debnick@uw.edu or jennifer.e.below@uth.tmc.edu

Supplementary information:  Supplementary data are available at Bioinformatics online.