bluuebunny/crossref_metadata_2025 huggingface dataset:
Structural basis for early-onset neurological disorders caused by mutations in human selenocysteine synthase
Authors: Puppala Anupama K. , French Rachel L. , Matthies Doreen , Baxa Ulrich , Subramaniam Sriram , Simonović Miljan
Published: August 2016

Selenocysteine synthase (SepSecS) catalyzes the terminal reaction of selenocysteine, and is vital for human selenoproteome integrity. Autosomal recessive inheritance of mutations in SepSecS–Ala239Thr, Thr325Ser, Tyr334Cys and Tyr429*–induced severe, early-onset, neurological disorders in distinct human populations. Although harboring different mutant alleles, patients presented remarkably similar phenotypes typified by cerebellar and cerebral atrophy, seizures, irritability, ataxia, and extreme spasticity. However, it has remained unclear how these genetic alterations affected the structure of SepSecS and subsequently elicited the development of a neurological pathology. Herein, our biophysical and structural characterization demonstrates that, with the exception of Tyr429*, pathogenic mutations decrease protein stability and trigger protein misfolding. We propose that the reduced stability and increased propensity towards misfolding are the main causes for the loss of SepSecS activity in afflicted patients, and that these factors contribute to disease progression. We also suggest that misfolding of enzymes regulating protein synthesis should be considered in the diagnosis and study of childhood neurological disorders.
Sensitivity of density-dependent threshold to species composition in arthropod aggregates
Authors: Broly Pierre , Ectors Quentin , Decuyper Geoffrey , Nicolis Stamatios C. , Deneubourg Jean-Louis
Published: August 2016

How mixed-species groups perform collective behaviours provides unique insights into the mechanisms that drive social interactions. Herein, we followed the aggregation process of two isopod species under monospecific and heterospecific conditions at three population densities. Our experimental results show that the formation of both the monospecific and heterospecific groups responds to a similar threshold function. Furthermore, the two species contribute equally to the mixed-species aggregate growth and are not spatiotemporally segregated. However, we show that the cohesion is weaker and the probability of forming aggregations is lower in heterospecific groups than in monospecific populations. Thus, our results show that amplification processes are shared between species, but that the weighting given to conspecific and heterospecific information differs. We develop a theoretical model to test this hypothesis. The model reproduces our experimental data and shows that a relatively low level of inter-attractions between species is able to generate mixed-species aggregates. Moreover the greater the total population, the lower this parameter value is needed to observe aggregation in both species. This highlights the importance to study not only qualitatively but also quantitatively the heterospecific interactions in mixed-species groups. Finally, the patterns observed could be biologically relevant in favouring the association between species.
A Nomogram for Predicting the Pathological Response of Axillary Lymph Node Metastasis in Breast Cancer Patients
Authors: Jin Xi , Jiang Yi-Zhou , Chen Sheng , Shao Zhi-Ming , Di Gen-Hong
Published: August 2016

The value of sentinel lymph node biopsy (SLNB) in post-neoadjuvant chemotherapy (NCT) patients is still controversial. We aimed to identify predictors and construct a nomogram for predicting the pathologically complete response (pCR) of axillary lymph nodes (ALNs) after NCT in node positive breast cancer patients. In total, 426 patients with pathologically proven ALN metastasis before NCT were enrolled, randomized 1:1 and divided into a training set and a validation set. We developed a nomogram based on independent predictors for ALN pCR identified by multivariate logistic regression as well as clinical significant predictors. The multivariate logistic regression analysis showed that hormone receptor (HR) status, human epidermal growth factor 2 (HER2) status and Ki67 index were independent predictors. The nomogram was thereby constructed by those independent predictors as well as tumor size and NCT regimens. The areas under the receiver operating characteristic curve of the training set and the validation set were 0.804 and 0.749, respectively. We constructed a nomogram for predicting ALN pCR in patients who received NCT. Our nomogram can improve risk stratification, accurately predict post-NCT ALN status and avoid unnecessary ALN dissection.
A compact imaging spectroscopic system for biomolecular detections on plasmonic chips
Authors: Lo Shu-Cheng , Lin En-Hung , Wei Pei-Kuen , Tsai Wan-Shao
Published: August 2016

In this study, we demonstrate a compact imaging spectroscopic system for high-throughput detection of biomolecular interactions on plasmonic chips, based on a curved grating as the key element of light diffraction and light focusing.
Smart sensory materials for divalent cations: a dithizone immobilized membrane for optical analysis
Authors: Alberti Giancarla , Re Silvia , Tivelli Anna Maria Chiara , Biesuz Raffaela
Published: August 2016

Mem-DTZ for Cu(ii), Cd(ii), Zn(ii) and Hg(ii). Single analyte and simultaneous two cation determinations by RGB and PLS methods.
Monitoring a typical fermentation process of natto by low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) techniques
Authors: Wu Jing , Li Yanru , Gao Xingsheng
Published: August 2016

Unique insights into the monitoring of a typical fermentation process of natto based on low field nuclear magnetic resonance (LF-NMR) associated with magnetic resonance imaging (MRI).
Opportunities for glyconanomaterials in personalized medicine
Authors: Reichardt Niels-Christian , Martín-Lomas Manuel , Penadés Soledad
Published: August 2016

This feature article discusses how the functionalisation of nanomaterials with glycans will facilitate their application in personalized medicine.
Separation of carbon dioxide from flue gas by mixed matrix membranes using dual phase microporous polymeric constituents
Authors: Sekizkardes Ali K. , Kusuma Victor A. , Dahe Ganpat , Roth Elliot A. , Hill Lawrence J. , Marti Anne , Macala Megan , Venna Surendar R. , Hopkinson David
Published: August 2016

Microporous polymeric mixed matrix membranes for CO2 separation from actual flue gas of a coal-fired power plant.
Hydrogen production from water using a bis(imino)pyridine molybdenum electrocatalyst
Authors: Pal Raja , Laureanti Joseph A. , Groy Thomas L. , Jones Anne K. , Trovitch Ryan J.
Published: August 2016

Reduction of [(Ph2PPrPDI)MoO][PF6]2 affords an unusual Mo(ii) oxo compound that mediates the electrocatalytic reduction of water.
KNH2–KH: a metal amide–hydride solid solution
Authors: Santoru Antonio , Pistidda Claudio , Sørby Magnus H. , Chierotti Michele R. , Garroni Sebastiano , Pinatel Eugenio , Karimi Fahim , Cao Hujun , Bergemann Nils , Le Thi T. , Puszkiel Julián , Gobetto Roberto , Baricco Marcello , Hauback Bjørn C. , Klassen Thomas , Dornheim Martin
Published: August 2016

The addition of KH to KNH2 provides the first metal amide–hydride solid solution by either mechanochemical or thermal input.
A localized surface plasmon resonance-enhanced photoelectrochemical biosensing strategy for highly sensitive and scatheless cell assay under red light excitation
Authors: Li Ruyan , Yan Rong , Bao Jianchun , Tu Wenwen , Dai Zhihui
Published: August 2016

In this work, a novel photoelectrochemical biosensing strategy was designed for cell assay under 630 nm (red light) excitation.
Transition-sized Au92nanoparticle bridging non-fcc-structured gold nanoclusters and fcc-structured gold nanocrystals
Authors: Liao Lingwen , Chen Jishi , Wang Chengming , Zhuang Shengli , Yan Nan , Yao Chuanhao , Xia Nan , Li Lingling , Bao Xiaoli , Wu Zhikun
Published: August 2016

We report the intriguing internal structure, crystallographic arrangement, optical absorption and electrochemical properties of a transition-sized Au92nanoparticle.
Specific enrichment combined with highly efficient solid-phase tagging for the sensitive detection of heparin based on boronic acid-functionalized mesoporous silica nanospheres
Authors: Zhu Dong , Ye Jing , Hu Yue , Wen Hong Mei , Kang An , Tang Yu-Ping , Chen Jun , Shan Chen Xiao , Cui Xiao Bing
Published: August 2016

Representation of the combined specific enrichment and solid-phase tagging approach within boronic acid-functionalized mesoporous silica nanospheres.
Complete assembly of Cu2ZnSnS4 (CZTS) nanorods at substrate interfaces using a combination of self and directed organisation
Authors: Liu Pai , Singh Shalini , Bree Gerard , Ryan Kevin M.
Published: August 2016

Herein, we report the two stage assembly of semiconductor nanorods at substrate interfaces using both self and field directed assembly methods.
pH-Sensitive fluorophores from locked GFP chromophores by a non-alternant analogue of the photochemical meta effect
Authors: Olsen Seth , Baranov Mikhail S. , Baleeva Nadezhda S. , Antonova Maria M. , Johnson Kenneth A. , Solntsev Kyril M.
Published: August 2016

We report the synthesis and characterization of a pH-sensitive fluorescence switch based on a conformationally-locked green fluorescent protein (GFP) chromophore.
Solvent effects on de-excitation channels in the p-coumaric acid methyl ester anion, an analogue of the photoactive yellow protein (PYP) chromophore
Authors: García-Prieto Francisco F. , Muñoz-Losa Aurora , Luz Sánchez M. , Elena Martín M. , Aguilar Manuel A.
Published: August 2016

Environmental effects on the deactivation channels of the PYP chromophore in the gas phase and water solution are compared at the CASPT2//CASSCF/cc-pVDZ level.
Effect of alkyl chain functionalization of ionic liquid surfactants on the complexation and self-assembling behavior of polyampholyte gelatin in aqueous medium
Authors: Singh Gagandeep , Singh Gurbir , Kang Tejwant Singh
Published: August 2016

The interactional behavior of ILSs towards gelatin forming structurally different ILS mediated self-assemblies depending on the nature of the ILS and counterion binding is shown.
Anomalous pressure effects on the photoreaction of a light-sensor protein from Synechocystis, PixD (Slr1694), and the compressibility change of its intermediates
Authors: Nakajima Tsubasa , Kuroi Kunisato , Nakasone Yusuke , Okajima Koji , Ikeuchi Masahiko , Tokutomi Satoru , Terazima Masahide
Published: August 2016

High pressure enhances the dissociation yield of SyPixD, and this pressure effect was explained by pressure dependent fluctuation of intermediates.
Multivalent bonds in self-assembled bundles of ultrathin gold nanowires
Authors: Reiser B. , Gerstner D. , Gonzalez-Garcia L. , Maurer J. H. M. , Kanelidis I. , Kraus T.
Published: August 2016

We describe solvent effects in the self-assembly of ultrathin gold nanowires and highlight the role of intermolecular ligand–solvent interactions.
Spatially resolved surface valence gradient and structural transformation of lithium transition metal oxides in lithium-ion batteries
Authors: Liu Hanshuo , Bugnet Matthieu , Tessaro Matteo Z. , Harris Kristopher J. , Dunham Mark J. R. , Jiang Meng , Goward Gillian R. , Botton Gianluigi A.
Published: August 2016

Study on the chemical and structural degradation of layered lithium transition metal oxide cathode material upon electrochemical cycling.
Defect properties of the two-dimensional (CH3NH3)2Pb(SCN)2I2 perovskite: a density-functional theory study
Authors: Xiao Zewen , Meng Weiwei , Wang Jianbo , Yan Yanfa
Published: August 2016

To optimize the photovoltaic performance, the 2D (CH3NH3)2Pb(SCN)2I2 perovskite absorber layers should be synthesized under Pb-poor and I-rich conditions so that the dominant defects are VPb, which create shallow defect transition levels and making the absorber layers intrinsically p-type.
Water adsorption and O-defect formation on Fe2O3(0001) surfaces
Authors: Ovcharenko Roman , Voloshina Elena , Sauer Joachim
Published: August 2016

Detailed theoretical understanding of the interaction between pristine and defective α-Fe2O3(0001) surfaces and an isolated water molecule.
Pt–FeOx/SiO2catalysts prepared by galvanic displacement show high selectivity for cinnamyl alcohol production in the chemoselective hydrogenation of cinnamaldehyde
Authors: Shi Yu-Sheng , Yuan Zi-Fei , Wei Qian , Sun Ke-Qiang , Xu Bo-Qing
Published: August 2016

Intimately interacting Pt–FeOxentities preparedviagalvanic displacement are highly selective for the chemoselective hydrogenation of the CO bond in cinnamaldehyde.
Palladium complexes with simple iminopyridines as catalysts for polyketone synthesis
Authors: Rosar V. , Dedeic D. , Nobile T. , Fini F. , Balducci G. , Alessio E. , Carfagna C. , Milani B.
Published: August 2016

A systematic study on iminopyridine palladium complexes demonstrates the relationship among NMR chemical shifts, ligand donor capability and catalytic performances.
Novel dinitromethyl-featured polynitro energetic salts
Authors: Li Ying , Huang Haifeng , Lin Xiangyang , Pan Renming , Yang Jun
Published: August 2016

An unique and facile method was developed to synthesize a new class of energetic salts based on 2-amino-1,1,5,5-tetranitro-4-oxo-3-aza-pentene (ATNP) anion in one-pot reaction. These salts exhibited promising detonation performances (detonation pressure: 28.6 to 34.3 GPa; detonation velocity: 8037 to 8674 m s−1) which were comparable to those of RDX.
Potential of microporous metal–organic frameworks for separation of hydrocarbon mixtures
Authors: Bao Zongbi , Chang Ganggang , Xing Huabin , Krishna Rajamani , Ren Qilong , Chen Banglin
Published: August 2016

In the process industries, the separation of mixtures of hydrocarbons is important both for the preparation of feedstocks and for use as end products.
A dual-metal–organic-framework derived electrocatalyst for oxygen reduction
Authors: Guan Bu Yuan , Yu Le , (David) Lou Xiong Wen
Published: August 2016

Unique iron carbide nanocrystallite-embedded carbon nanotube assemblies prepared via a dual-MOF confined-pyrolysis strategy exhibit superior electrocatalytic performance for the oxygen reduction reaction.
Current uses of nanomaterials in biocidal products and treated articles in the EU
Authors: Mackevica Aiga , Revilla Pau , Brinch Anna , Hansen Steffen Foss
Published: August 2016

Nanomaterials (NMs) are currently being used for a wide variety of products, and a number of them are utilized as biocides due to their antimicrobial or antifungal properties.
In vitro lipolytic, antioxidant and anti-inflammatory activities of roasted pistachio kernel and skin constituents
Authors: Grace Mary H. , Esposito Debora , Timmers Michael A. , Xiong Jia , Yousef Gad , Komarnytsky Slavko , Lila Mary Ann
Published: August 2016

A comprehensive phytochemical analysis was conducted on pistachios to identify the differential contributions of skin and kernel phytochemicals toin vitrobioactivity.
Integration of catalytic fast pyrolysis and hydroprocessing: a pathway to refinery intermediates and “drop-in” fuels from biomass
Authors: Mante Ofei D. , Dayton David C. , Gabrielsen Jostein , Ammitzboll Nadia L. , Barbee David , Verdier Sylvain , Wang Kaige
Published: August 2016

Biocrude obtained from catalytic fast pyrolysis could be hydrotreated in a single-stage without preprocessing and stabilization steps.
Enantioselective chemoenzymatic synthesis of a key segment of neuronal nitric oxide synthase inhibitors and several related 3-aminopyridinylmethyl-4-hydroxypyrrolidines
Authors: Villar-Barro Ángela , Gotor Vicente , Brieva Rosario
Published: August 2016

High enantioselective lipase catalyzed resolution of several cis and trans 3-aminopyridinylmethyl-4-hydroxypyrrolidines has been described. Some of these pyrrolidines are precursors in the synthesis of selective nNOS inhibitors.
High content image analysis of focal adhesion-dependent mechanosensitive stem cell differentiation
Authors: Holle Andrew W. , McIntyre Alistair J. , Kehe Jared , Wijesekara Piyumi , Young Jennifer L. , Vincent Ludovic G. , Engler Adam J.
Published: August 2016

Cryptic, force-activated binding sites for MAPK1 are identified in multiple focal adhesion proteins, where they are found to mediate mechanosensitive stem cell differentiation.
Diagnosis of iron deficiency anemia using density-based fractionation of red blood cells
Authors: Hennek Jonathan W. , Kumar Ashok A. , Wiltschko Alex B. , Patton Matthew R. , Lee Si Yi Ryan , Brugnara Carlo , Adams Ryan P. , Whitesides George M.
Published: August 2016

We have developed a new point-of-care test to diagnose iron deficiency anemia by eye or using machine learning.
Measurement of the hematocrit using paper-based microfluidic devices
Authors: Berry Samuel B. , Fernandes Syrena C. , Rajaratnam Anjali , DeChiara Nicholas S. , Mace Charles R.
Published: August 2016

We developed a paper-based microfluidic device that enables the transport of cells and measurement of the hematocrit of whole blood.
Synthesis and antiproliferative activity of novel hybrid 3-substituted polyhydroquinoline-fatty acids
Authors: da Costa Cabrera Diego , Rosa Sabrina B. , de Oliveira Franciele Saes , Marinho Marcelo A. G. , Montes D'Oca Caroline R. , Russowsky Dennis , Horn Ana Paula , Montes D'Oca Marcelo G.
Published: August 2016

Synthesis and antiproliferative activity of novel hybrid 3-substituted polyhydroquinoline-fatty acids.
AuNp@MOF composite as electrochemical material for determination of bisphenol A and its oxidation behavior study
Authors: da Silva Cleiser Thiago Pereira , Veregue Fernanda Reis , Aguiar Laís Weber , Meneguin Joziane Gimenes , Moisés Murilo Pereira , Fávaro Silvia Luciana , Radovanovic Eduardo , Girotto Emerson Marcelo , Rinaldi Andrelson Wellington
Published: August 2016

A hybrid material on the carbon paste electrode exhibited a greater electroactivity for the determination of an endocrine disruptor.
Bio-inspired magnetic molecularly imprinted polymers based on Pickering emulsions for selective protein recognition
Authors: Sun Yanhua , Chen Jian , Li Yuqing , Li Hui , Zhu Xiaohong , Hu Yuwei , Huang Shen , Li Jianbing , Zhong Shian
Published: August 2016

Hydrophobic halloysite nanotube stabilized Pickering emulsions and their application in protein separation.
Gold-catalyzed π-directed regioselective cyclization of bis(o-alkynyl benzyl alcohols): rapid access to dihydroisobenzofuran derivatives
Authors: Cao Ziping , Li Shan , Li Jie , Meng Xin , Zhang Huaqing , Sun Xuejun , You Jinmao
Published: August 2016

A tandem alkyne/alkene-directed 5-exo-dig cyclization and a Prins-type cyclization for the synthesis of dihydroisobenzofurans are described.
The mechanism of Claisen rearrangement of allyl phenyl ether from the perspective of topological analysis of the ELF
Authors: Berski Sławomir , Durlak Piotr
Published: August 2016

The mechanism of the Claisen rearrangement of allyl phenyl ether was studied by means of BET and the ELF. We have shown the mechanism of reaction as a sequence of bond breaking and bond formation that are precisely located in the reaction path by means of catastrophe theory.
[NO]- and [NN]-coordination mode rhodium complexes based on a flexible ligand: synthesis, reactivity and catalytic activity
Authors: Yao Zi-Jian , Li Kuan , Zhang Jian-Yong , Deng Wei
Published: August 2016

Two rhodium(i) complexes were synthesized by the reaction of an [NON]-flexible ligand with Rh(COD)2BF4 under different reaction conditions.
Alkylamide-substituted tetraphenylethylene: three modes of fluorescence based on a hydrogen-bonded excimer
Authors: Takeda Takashi , Yamamoto Shunsuke , Mitsuishi Masaya , Akutagawa Tomoyuki
Published: August 2016

Three modes of emission, with different intensities and wavelengths, were observed in tetraphenylethylenetetraamide 1 depending on the solvent, concentration and irradiation with light.
Nickel-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of 2-aminobenzimidazoles
Authors: Kumar K. Anil , Kannaboina Prakash , Rao D. Nageswar , Das Parthasarathi
Published: August 2016

A complementary set of Ni- and Cu-based catalyst systems for the chemoselective N-arylation of 2-aminobenzimidazoles have been developed.
5-Bromo-2′-deoxycytidine—a potential DNA photosensitizer
Authors: Zdrowowicz Magdalena , Wityk Paweł , Michalska Barbara , Rak Janusz
Published: August 2016

Photoinduced single strand breaks and intrastrand cross-links are formed in an oligonucleotide labeled with 5-bromo-2′-deoxycytidine.
Binaphthyl-based chiral bifunctional organocatalysts for water mediated asymmetric List–Lerner–Barbas aldol reactions
Authors: Ashokkumar Veeramanoharan , Chithiraikumar Chinnadurai , Siva Ayyanar
Published: August 2016

Binaphthyl-based organocatalysts were synthesized and successfully applied to the asymmetric List–Lerner–Barbas aldol reaction in water medium. These organocatalysts were found to be effective catalysts for the reactions of ketones with different aldehydes to give aldol products with higher yield and ee's.
Reactions of 1,2-diaza-1,3-butadienes with propargyl alcohol as an approach to novel bi-heterocyclic systems
Authors: De Crescentini L. , Perrulli F. R. , Favi G. , Santeusanio S. , Giorgi G. , Attanasi O. A. , Mantellini F.
Published: August 2016

Starting from easily available 1,2-diaza-1,3-dienes and propargyl alcohol, spyro-bicyclic systems, through 2,3-Wittig rearrangement, and pyrazolone–triazole derivatives, through a typical “click reaction”, are obtained.
Visible light dye-photosensitised oxidation of pyrroles using a simple LED photoreactor
Authors: Howard James K. , Rihak Kieran J. , Hyland Christopher J. T. , Bissember Alex C. , Smith Jason A.
Published: August 2016

Simple LED batch reactors have been constructed and used for the efficient and selective photooxidation of pyrroles and selected dienes.
Metal-free radical addition/cyclization of alkynoates with xanthates towards 3-(β-carbonyl)coumarins
Authors: Pan Changduo , Chen Rongzhen , Shao Weile , Yu Jin-Tao
Published: August 2016

The dilauroyl peroxide-promoted radical carboannulation of alkynoates with xanthates was developed, affording 4-aryl-3-(β-carbonyl) coumarins in moderate to good yields.
Non-covalent interactions in controlling pH-responsive behaviors of self-assembled nanosystems
Authors: Li Yang , Wang Zhaohui , Wei Qi , Luo Min , Huang Gang , Sumer Baran D. , Gao Jinming
Published: August 2016

Self-assembly and associated dynamic and reversible non-covalent interactions are the basis of protein biochemistry (e.g., protein folding) and the development of sophisticated nanomaterial systems that can respond to and amplify biological signals.
Ultrafast SET-LRP in biphasic mixtures of the non-disproportionating solvent acetonitrile with water
Authors: Enayati Mojtaba , Jezorek Ryan L. , Smail Rauan B. , Monteiro Michael J. , Percec Virgil
Published: August 2016

The two kinetic regime, low conversion and low chain end functionality seen in copper catalyzed polymerization of acrylates in acetonitrile was transformed into a SET-LRP kinetic, to complete conversion and quantitative chain end functionality in a biphasic mixture containing 10% water.
Precise grafting of macrocyclics and dendrons to a linear polymer chain
Authors: Amir Faheem , Hossain Md. D. , Jia Zhongfan , Monteiro Michael J.
Published: August 2016

Sequential growth of multifunctional telechelic polymer chains allowing grafting of polymeric dendrons and cyclics equally spaced along the backbone.
Novel donor–acceptor type conjugated polymers based on quinoxalino[6,5-f]quinoxaline for photovoltaic applications
Authors: Liu Liqian , Zhang Guichuan , He Baitian , Liu Shengjian , Duan Chunhui , Huang Fei
Published: August 2016

Three novel conjugated polymers based on 2,3,8,9-tetrakis(3-(alkoxy)phenyl)-6,12-di(thiophen-2-yl)-2,3,8,9-tetrahydroquinoxalino[6,5-f]quinoxaline (DTNQx) were designed and synthesized, and were applied in photovoltaic cells.
Metal-free iodine-catalyzed direct cross-dehydrogenative coupling (CDC) between pyrazoles and thiols
Authors: Yang Daoshan , Sun Pengfei , Wei Wei , Meng Lingduan , He Lingchao , Fang Baokai , Jiang Wei , Wang Hua
Published: August 2016

A green and efficient iodine-catalyzed cross-dehydrogenative C–S coupling method for the synthesis of C-4 sulfenylated pyrazoles has been initially developed under metal-free conditions.
Environmentally benign selective hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using Cu based bimetallic nanoparticles supported on multiwalled carbon nanotubes and mesoporous carbon
Authors: Hareesh H. N. , Minchitha K. U. , Venkatesh K. , Nagaraju N. , Kathyayini N.
Published: August 2016

The catalytic activity of these materials was investigated in the hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using different hydrogen sources.
Carbon dots based turn-on fluorescent probes for the sensitive determination of glyphosate in environmental water samples
Authors: Wang Long , Bi Yidan , Gao Jia , Li Yijia , Ding Hong , Ding Lan
Published: August 2016

Schematic illustration of Cu2+ and glyphosate detection using the CDs.
HF radiofrequency exposure partially restores the dynamics of model membranes containing carbon nanotubes
Authors: Nugue G. , Dekali S. , Bourbon F. , Selek L. , Laisné A. , Debouzy J. C. , Crouzier D.
Published: August 2016

We studied the changes in the structure and dynamics of model membranes induced by HF radio frequency exposure and/or the presence of carbon nanotubes.
PW9V3/rGO/SPEEK hybrid material: an excellent proton conductor
Authors: Cai Huaxue , Wu Xuefei , Wu Qingyin , Cao Fahe , Yan Wenfu
Published: August 2016

Reduced graphene oxide (rGO) and sulfonated polyether ether ketone (SPEEK) were introduced into a tungstovanadophosphoric acid (H6PW9V3O40, abbreviated as PW9V3) to prepare a novel PW9V3/rGO/SPEEK hybrid proton conduction material.
Thermal transition behaviors, solubility, and mechanical properties of wholly aromatic para-, meta-poly(ether-amide)s: effect on numbers of para-aryl ether linkages
Authors: Zhang Wen-Qiang , Wang Xiu-Li , Liu Gui-Cheng , Chen Li , Wang Yu-Zhong
Published: August 2016

para- and meta-poly(ether-amide)s containing 2, 3, 4 or 5 para-aryl ether linkages show different solubility, thermal transition behavior and mechanical properties.
Magnetic Fe3O4 nanoparticles supporting Macmillan with controlled shell structure as an efficient and reusable catalyst for asymmetric reaction
Authors: Li Xinjuan , Zhang Suli , Yang Beilei , Lv Chunna , Jia Xianbin , Hu Zhiguo
Published: August 2016

Magnetic nanoparticles grafted with chiral polymer brushes offer an effective way to bridge the gap between heterogeneous and homogeneous catalysis.
Fabrication of spherical CoFe2O4 nanoparticles via sol–gel and hydrothermal methods and investigation of their magnetorheological characteristics
Authors: Hajalilou Abdollah , Mazlan Saiful Amri , Abbasi Mehrdad , Lavvafi Hossein
Published: August 2016

CoFe2O4 nanoparticles are synthesized through sol–gel and facile hydrothermal methods, and their magnetorheological (MR) characteristics are evaluated.
A nanogel with passive targeting function and adjustable polyplex surface properties for efficient anti-tumor gene therapy
Authors: Zhang Haizhou , Li Qingbao , Zhang Yingying , Xia Yu , Yun Liang , Zhang Qian , Zhang Tao , Chen Xia , Chen Huaiwen , Li Wei
Published: August 2016

A dual responsive nanogel with tuneable polyplex properties was finely prepared. Its highin vivo/vitrogene transfection ability and passive cellular targeting function strongly promoted intratumor accumulation and tumor inhibition.
Cu(ii)-catalyzed cross-dehydrogenative coupling reaction of N′-acyl arylhydrazines and phosphites
Authors: Zhang Ji-Quan , Xiong Yan-Shi , Chan Albert S. C. , Lu Gui
Published: August 2016

A novel Cu(ii)-catalyzed cross-dehydrogenative coupling reaction of N′-aryl acylhydrazines and dialkyl phosphites has been developed for the synthesis of phosphorylhydrazides by using NMO as an external oxidant and AgNO3 as additive.
Diverse nanostructures and gel behaviours contained in a thermo- and dual-pH-sensitive ABC (PNIPAM–PAA–P4VP) terpolymer in an aqueous solution
Authors: Yong Ping , Yang Yuejiao , Wang Zhiyong , Yang Liming , Chen Jie
Published: August 2016

PNIPAM-b-PAA-b-P4VP (NAV), a thermo- and dual-pH-sensitive ABC triblock copolymer, was synthesized via sequential reversible addition–fragmentation chain transfer (RAFT) polymerization and subsequent hydrolysis.
Direct access to aggregation-free and small intermetallic nanoparticles in ordered, large-pore mesoporous carbon for an electrocatalyst
Authors: Mun Yeongdong , Shim Jongmin , Kim Kyeounghak , Han Jeong Woo , Kim Soo-Kil , Ye Youngjin , Hwang Jongkook , Lee Seonggyu , Jang JongHyun , Kim Yong-Tae , Lee Jinwoo
Published: August 2016

Small-sized intermetallic catalysts are synthesized by block copolymer-assisted evaporation-induced self-assembly, incorporating an agent that interacts strongly with metal.
Evaluation of a tubular nano-composite ceramic membrane for hydrogen separation in methane steam reforming reaction
Authors: Amanipour Mahdi , Babakhani Ensieh Ganji , Towfighi Jafar , Zamaniyan Akbar
Published: August 2016

Nano-composite ceramic membranes are successfully applied in a membrane reactor for simultaneous production and purification of hydrogen in the MSR reaction.
Efficient synthesis of 2-phenyl-3-substituted furo/thieno[2,3-b]quinoxalines via Sonogashira coupling reaction followed by iodocyclization and subsequent palladium-catalyzed cross-coupling reactions
Authors: Besharati-Seidani Tayebeh , Keivanloo Ali , Kaboudin Babak , Yokomatsu Tsutomu
Published: August 2016

In this paper, we report the successful synthesis of new 2-phenyl-3-substituted furo/thieno[2,3-b]quinoxaline derivatives from 2-chloro-3-methoxyquinoxaline and 2-chloro-3-(methylthio)quinoxaline by a three-step approach.
Photochemical UVC/H2O2 oxidation system as an effective method for the decolourisation of bio-treated textile wastewaters: towards onsite water reuse
Authors: Salim Márcia M. F. F. , Novack Aline , Soares Petrick A. , Medeiros Ângela , Granato Miguel A. , Souza Antonio A. U. , Vilar Vítor J. P. , Guelli U. Souza Selene M. A.
Published: August 2016

A photochemical UVC/H2O2 oxidation system was applied for the decolourisation of two real textile wastewaters collected after biological oxidation from two different textile wastewater treatment plants.
Highly sensitive and selective optical detection of lead(ii) using a label-free fluorescent aptasensor
Authors: Huang Yafei , Yan Jiao , Fang Zongzhuang , Zhang Chenghui , Bai Wenhui , Yan Mengmeng , Zhu Chao , Gao Chengguo , Chen Ailiang
Published: August 2016

Configurations and measurement principles of a label-free fluorescence aptamer-based PG assay for Pb2+ detection.
Three dimensional hierarchically porous crystalline MnO2 structure design for a high rate performance lithium-ion battery anode
Authors: Liu Shikun , Liu Xusong , Zhao Jiupeng , Tong Zhongqiu , Wang Jing , Ma Xiaoxuan , Chi Caixia , Su Dapeng , Liu Xiaoxu , Li Yao
Published: August 2016

A hierarchically porous crystalline MnO2 anode was applied to a lithium ion battery and exhibited long cycling life and high rate performance.
Exploring the isomerization paths of push–pull hexatrienes
Authors: Chattopadhyay Anjan , Saini Praveen , Pandharkar Riddhish
Published: August 2016

The first photo-excited singlet state of all-trans donor (amine), acceptor (cyano)-substituted hexatriene forms donor side-twisted minima and its passage towards the cis–trans–trans isomer is characterized by an S0/S1 conical intersection.
PEDOT/PSS nanoparticles: synthesis and properties
Authors: Muro Koji , Watanabe Mitsuru , Tamai Toshiyuki , Yazawa Kenji , Matsukawa Kimihiro
Published: August 2016

Conductive polymer consisting of poly(3,4-ethylenedioxythiophene)/cross-linked poly(p-styrenesulfonate) (PEDOT/CL-PSS) particles was synthesized, and its dispersion and film properties were evaluated.
Asymmetric Mannich reaction: highly enantioselective synthesis of 3-amino-oxindoles via chiral squaramide based H-bond donor catalysis
Authors: Rao Kadiyala Srinivasa , Ramesh Pambala , Chowhan L. Raju , Trivedi Rajiv
Published: August 2016

A facile formation of 3-aminooxindole derivatives from the reaction of 1,3-diketones with isatin (N-Boc) via an asymmetric Mannich reaction catalyzed by chiral cinchona alkaloid based squaramide containing H-bond donor catalysts.
Kinetics and mechanisms of gas phase reactions of hexenols with ozone
Authors: Lin Xiaoxiao , Ma Qiao , Yang Chengqiang , Tang Xiaofeng , Zhao Weixiong , Hu Changjin , Gu Xuejun , Fang Bo , Gai Yanbo , Zhang Weijun
Published: August 2016

The reactivity of hexenols, especially for the (E)-2-hexen-1-ol, with O3 shows a strong dependence on their chemical structure.
Immobilization of soybean peroxidase on silica-coated magnetic particles: a magnetically recoverable biocatalyst for pollutant removal
Authors: Silva Maria C. , Torres Juliana A. , Nogueira Francisco G. E. , Tavares Tássia S. , Corrêa Angelita D. , Oliveira Luiz C. A. , Ramalho Teodorico C.
Published: August 2016

Development of a recyclable biocatalystviaimmobilization of soybean peroxidase onto magnetic nanoparticles.
Cationic bovine serum albumin (CBA) conjugated poly lactic-co-glycolic acid (PLGA) nanoparticles for extended delivery of methotrexate into brain tumors
Authors: Kesharwani Prashant , Jain Ashay , Jain Atul , Jain Amit K. , Garg Neeraj Kumar , Tekade Rakesh Kumar , Raj Singh Thakur Raghu , Iyer Arun K.
Published: August 2016

Current strategies for the treatment of brain tumors have been hindered primarily by the presence of the highly lipophilic, insurmountable blood–brain barrier (BBB).
Multiple emissions from indenofluorenedione in solution and polymer films
Authors: Xu Jinjia , Takai Atsuro , Takeuchi Masayuki
Published: August 2016

An indenofluorenedione derivative with D–A–D framework exhibits the dual fluorescent channels, which can be controllably switched in broad visible range by changing environmental polarity, leading to sensitive multi-luminescence including white.
Facile synthesis of in situ phosphorus-doped g-C3N4 with enhanced visible light photocatalytic property for NO purification
Authors: Zhang Wendong , Zhang Jie , Dong Fan , Zhang Yuxin
Published: August 2016

A novel phosphorus doped g-C3N4 with typical optical property has been synthesized using phosphonitrilic chloride trimer and thiourea as precursors through a thermal copolymerization route.
A series of pyridyl-amide-based ZnII/CdII coordination polymers and their polypyrrole-functionalized composite materials for tuning their photocatalytic properties
Authors: Wang Xiu-Li , Wu Xiao-Mei , Liu Guo-Cheng , Lin Hong-Yan , Wang Xiang
Published: August 2016

Six pyridyl-amide-based ZnII/CdII coordination polymers have been solvothermally synthesized and decorated by polypyrrole for tuning their photocatalytic properties under visible irradiation.
Near-infrared photoluminescence enhancement of N-acetyl-l-cysteine (NAC)-protected gold nanoparticles via fluorescence resonance energy transfer from NAC-stabilized CdTe quantum dots
Authors: Liu Yang , Gong Xiaojuan , Cheng Zhe , Shuang Shaomin , Choi Martin M. F. , Li Chenzhong , Dong Chuan
Published: August 2016

Water-soluble N-acetyl-l-cysteine-protected gold nanoparticles (NAC-AuNPs) and NAC-stabilized cadmium telluride quantum dots (NAC-CdTeQDs) have been synthesized.
An efficient chiral sensing platform based on graphene quantum dot–tartaric acid hybrids
Authors: Yu Yin , Liu Wenjie , Ma Jianfeng , Tao Yongxin , Qin Yong , Kong Yong
Published: August 2016

Hybrids of GQDs-l-(+)–TA and GQDs-d-(−)–TA are used for the construction of a pH-sensitive chiral sensing platform.
Zinc and linkage effects of novel porphyrin-containing polyimides on resistor memory behaviors
Authors: Tsai Chia-Liang , Sudhir K Reddy Kamani , Yeh Chen-Yu , Wang Chin-Li , Lin Ching-Yao , Yen Hung-Ju , Tsai Ming-Chi , Liou Guey-Sheng
Published: August 2016

The retention time of resistor type memory devices could be tuned by the linkage groups between porphyrin moiety and DSDA on the PIs. Moreover, the metal zinc also plays an important role in further tuning the memory behavior.
Use of caprylic/capric triglyceride in the encapsulation of dementholized peppermint fragrance leading to smaller and better distributed nanocapsules
Authors: Ye Kai , Zhao Di , Shi Xiaodi , Lu Xihua
Published: August 2016

Physically stable dementholized peppermint (DP) nanocapsules with an average size of 82.8 nm and fragrance loading of 16% were prepared.
The first solvent-free synthesis of privileged γ- and δ-lactams via the Castagnoli–Cushman reaction
Authors: Lepikhina Anastasia , Bakulina Olga , Dar'in Dmitry , Krasavin Mikhail
Published: August 2016

The first solvent-free protocol for the atom-economical Castagnoli–Cushman reaction is reported.
Design of topical nanostructured lipid carrier of silymarin and its effect on 7,12-dimethylbenz[a]anthracene (DMBA) induced cellular differentiation in mouse skin
Authors: Singh Pooja , Arya Malti , Kanoujia Jovita , Singh Mahendra , Gupta Krishna P. , Saraf Shubhini A.
Published: August 2016

Effect of silymarin NLC on DMBA induced cell changes in mouse skin.
Facile synthesis of cationic gold nanoparticles with controlled size and surface plasmon resonance
Authors: Kim Young-Kwan , Landis Ryan F. , Huo Shuaidong , Kim Chang Soo , Vachet Richard W. , Rotello Vincent M.
Published: August 2016

We present a facile seed-mediated growth strategy for the size-controllable synthesis of large cationic gold nanoparticles by utilizing a functional cationic thiol ligand as a stabilizer.
Versatile synthesis and enlargement of functionalized distorted heptagon-containing nanographenes
Authors: Márquez Irene R. , Fuentes Noelia , Cruz Carlos M. , Puente-Muñoz Virginia , Sotorrios Lia , Marcos M. Luisa , Choquesillo-Lazarte Duane , Biel Blanca , Crovetto Luis , Gómez-Bengoa Enrique , González M. Teresa , Martin Ruben , Cuerva Juan M. , Campaña Araceli G.
Published: August 2016

Straightforward path to curved graphene molecules: distorted polycyclic aromatic hydrocarbons including heptagon moieties are obtained from simple precursors.
Polymerizable organo-gelator-stabilized gel-emulsions toward the preparation of compressible porous polymeric monoliths
Authors: Fu Xuwei , Wang Pei , Miao Qing , Liu Kaiqiang , Liu Huijing , Liu Jianfei , Fang Yu
Published: August 2016

Compressible porous polymeric monoliths could be used as highly efficient formaldehyde and toluene adsorbents.
Quasi-solid-state quantum dot sensitized solar cells with power conversion efficiency over 9% and high stability
Authors: Feng Wenliang , Zhao Leilei , Du Jun , Li Yan , Zhong Xinhua
Published: August 2016

A highly conductive gel electrolyte based on sodium carboxymethylcellulose was developed to construct quasi-solid-state quantum dot sensitized solar cells that exhibit power conversion efficiency over 9% and a significant improvement in stability compared to liquid-junction QDSCs.
A high performance fiber-shaped PEDOT@MnO2//C@Fe3O4asymmetric supercapacitor for wearable electronics
Authors: Sun Jinfeng , Huang Yan , Fu Chenxi , Huang Yang , Zhu Minshen , Tao Xiaoming , Zhi Chunyi , Hu Hong
Published: August 2016

A novel strategy to design a high performance fiber-shaped PEDOT@MnO2//C@Fe3O4asymmetric supercapacitor with excellent flexibility for wearable electronics.
Electrochemical reaction and surface chemistry for performance enhancement of a Si composite anode using a bis(fluorosulfonyl)imide-based ionic liquid
Authors: Shobukawa Hitoshi , Shin JaeWook , Alvarado Judith , Rustomji Cyrus S. , Meng Ying Shirley
Published: August 2016

A Si composite anode with the ionic liquid electrolyte EMIFSI shows superior rate capability. The decomposition products of EMIFSI are significantly different from those of carbonate electrolytes.
Eco-friendly synthesis of graphene nanoplatelets
Authors: Chang Dong Wook , Baek Jong-Beom
Published: August 2016

In this feature article, we summarize the general aspects and recent progress that have contributed to the development of eco-friendly green synthesis procedures for graphene, including mechanisms, properties, and applications.
Femtomolar sensitivity of bisphenol A photoelectrochemical aptasensor induced by visible light-driven TiO2 nanoparticle-decorated nitrogen-doped graphene
Authors: Zhou Lei , Jiang Ding , Du Xiaojiao , Chen Danyang , Qian Jing , Liu Qian , Hao Nan , Wang Kun
Published: August 2016

Efficient charge transfer takes place by coupling nitrogen doped graphene with TiO2 and the charge recombination of the composites is significantly suppressed, resulting enhanced photocurrent responses than pristine TiO2.
A study of Ce3+ to Mn2+ energy transfer in high transmission glasses using time-resolved spectroscopy
Authors: Gómez-Salces Susana , Barreda-Argüeso Jose Antonio , Valiente Rafael , Rodríguez Fernando
Published: August 2016

This work investigates the energy transfer from Ce3+ to Mn2+ in high transmission glass (HTG) doped with CeO2 and MnO through time-resolved spectroscopy to transform the solar spectrum into a more efficient red-enhanced spectrum for traditional Si-based solar cells.
Design of infrared-emitting rare earth doped nanoparticles and nanostructured composites
Authors: Zhao Xinyu , He Shuqing , Tan Mei Chee
Published: August 2016

We present an overview on the design of rare earth doped nanomaterials with controlled size, morphology, heterostructure and surface chemistry to create brightly emitting particles and monolithic nanostructured optically active polymeric composites for infrared-based applications.
Controlling the emission efficiency of blue-green iridium(iii) phosphorescent emitters and applications in solution-processed organic light-emitting diodes
Authors: Sajjad Muhammad T. , Sharma Nidhi , Pal Amlan K. , Hasan Kamrul , Xie Guohua , Kölln Lisa S. , Hanan Garry S. , Samuel Ifor D. W. , Zysman-Colman Eli
Published: August 2016

We show that the emission efficiency of blue-green phosphorescent emitters can be controlled through coupling of the excited state to vibrational modes.
A Review of the Expectations of Speech-Language Pathology Externship Student Clinicians and Their Supervisors
Authors: Christodoulou Joanne Nicole Wunk
Published: August 2016

Students bring skills gleaned from academic learning and any previous university clinic internship experiences to externship clinical placements. Speech-language pathologists (SLPs) in their personal work settings share their caseload, supervise, and guide these novice professionals as they advance their clinical skills in preparation for independent practice. Supervisors and student clinicians with varying skills, goals, and previous supervision experiences have expectations for these final placements that can impact the effectiveness of the supervisory relationship and experience. Educational theories indicate that a strong supervisory relationship is built on practices of modeling, active listening, and facilitative learning as students mature toward independent evidence-based practices and decisions, with supervisors that offer constructive feedback and encouragement. Supervisors should work to create an atmosphere that fosters trust and openness to promote the most effective supervisory relationship with their supervisees. An important component of an effective working relationship is to be aware of expectations and a willingness to adapt to varying and/or changing expectations. Increasing understanding of expectations will create an opportunity to exchange information and build a strong, effective supervisory relationship. An awareness of students' expectations and perceptions allows supervisors to target the students' needs and personalize guidance to facilitate maximum growth in clinical skills.
Colour image compression algorithm based on the DCT transform using difference lookup table
Authors: Messaoudi A. , Srairi K.
Published: August 2016

A simple and efficient method for lossy colour image compression is proposed. Here, the discrete cosine transform (DCT) is applied to the YCbCr image obtained from the original RGB image. The bisection method is used to define the required threshold for a prefixed user peak signal to noise ratio as a controlled quality criterion. The thresholded and quantised DCT coefficients are encoded with a new technique. The proposed technique uses the difference of the indexes of the retained coefficients in coordination with DCT block adaptive scanning to encode efficiently the coefficients. The difference of the indexes is stored in a lookup table called (dLUT). When compared with recent methods, the obtained results show that the proposed algorithm achieves high performance.
Fixturing impacts on high‐frequency low‐resistance, low‐inductance impedance measurements
Authors: Lemmon A. , Freeborn T.J. , Shahabi A.
Published: August 2016

Multiple off‐the‐shelf test‐fixtures are available to interface a device‐under‐test (DUT) to an impedance analyser to characterise its electrical properties. The impact of three available fixtures on the measured impedance of a low‐resistance, low‐inductance DUT requiring high‐frequency (≥100 MHz) characterisation are compared with a custom fixture. The custom fixture is shown to provide a higher accuracy than the off‐the‐shelf fixtures, highlighting that low‐resistance, low‐inductance devices require carefully constructed fixtures for characterisation. The experimental results collected using the fixtures are validated against a finite‐element‐analysis model of the DUT.
Zero‐Forcing Based Hybrid Beamforming for Multi‐User Millimeter Wave Systems
Authors: Noh Jeehwan , Kim Taeyoung , Seol Ji‐Yun , Lee Chungyong
Published: August 2016

Owing to the high cost of radio frequency (RF) chains and power consumption of broadband signals, it is suitable to include both analogue and digital processing for millimetre wave (mmWave) beamforming. In this study, hybrid beamforming (HBF) schemes are considered for multi‐user downlink mmWave systems. RF beamforming schemes are proposed for HBF transmission with perfect channel state information at transmitter (CSIT) and limited feedback information in the multi‐user mmWave channel. Simulation results show that proposed HBF schemes enhance sum rate performance than conventional HBF schemes in both cases of perfect CSIT and limited feedback.
Flexible power system operation accommodating uncertain wind power generation using transmission topology control: an improved linearised AC SCUC model
Authors: Nikoobakht Ahmad , Mardaneh Mohammad , Aghaei Jamshid , Guerrero‐Mestre Victoria , Contreras Javier
Published: August 2016

Stochastic security constrained unit commitment (SSCUC) based on a DC model could be problematic in AC networks because the DC model is potentially inaccurate. However, solving SSCUC problems using an AC model is still very challenging. Accordingly, an improved linearised AC optimal power flow (ILACOPF) model is provided in order to optimise the SSCUC problem. The proposed SSCUC model includes a linear representation of network losses and reactive power and bus voltage magnitudes. Moreover, in this study, transmission switching (TS), a powerful tool for grid side flexibility, is introduced and utilised to facilitate the mitigation of the uncertainty of wind power generation. Nevertheless, solving the SSCUC problem with TS in a full AC network is still one of the challenges in practical implementation, which is facilitated by the proposed ILACOPF model. Additionally, the aim of this study is to develop a more accurate power flow model to obtain a more realistic SSCUC solution using TS. The proposed ILAC‐SSCUC model using TS is formulated as a mixed‐integer linear programme, being solved by the proposed effective solution approach based on Benders’ decomposition. Numerical simulations on a 6‐bus and IEEE 118‐bus systems have been performed to evaluate the effectiveness of the method.