bluuebunny/crossref_metadata_2025 huggingface dataset:
Coexistence of Write Once Read Many Memory and Memristor in blend of Poly(3,4-ethylenedioxythiophene): polystyrene sulfonate and Polyvinyl Alcohol
Authors: Nguyen Viet Cuong , Lee Pooi See
Published: December 2016

In this work, the coexistence of Write Once Read Many Memory (WORM) and memristor can be achieved in a single device of Poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) and Polyvinyl Alcohol (PVA) blend organic memory system. In memristor mode, the bistable resistance states of the device can be cycled for more than 1000 times. Once a large negative bias of −8V was applied to the device, it was switched to permanent high resistance state that cannot be restored back to lower resistance states. The mechanism of the memristor effect can be attributed to the charge trapping behaviour in PVA while the WORM effect can be explained as the electrochemical characteristic of PEDOT: PSS which harnesses the percolative conduction pathways. The results may facilitate multipurpose memory device with active tunability.
Profiling bacterial communities associated with sediment-based aquaculture bioremediation systems under contrasting redox regimes
Authors: Robinson Georgina , Caldwell Gary S. , Wade Matthew J. , Free Andrew , Jones Clifford L. W. , Stead Selina M.
Published: December 2016

Deposit-feeding invertebrates are proposed bioremediators in microbial-driven sediment-based aquaculture effluent treatment systems. We elucidate the role of the sediment reduction-oxidation (redox) regime in structuring benthic bacterial communities, having direct implications for bioremediation potential and deposit-feeder nutrition. The sea cucumber Holothuria scabra was cultured on sediments under contrasting redox regimes; fully oxygenated (oxic) and redox stratified (oxic-anoxic). Taxonomically, metabolically and functionally distinct bacterial communities developed between the redox treatments with the oxic treatment supporting the greater diversity; redox regime and dissolved oxygen levels were the main environmental drivers. Oxic sediments were colonised by nitrifying bacteria with the potential to remediate nitrogenous wastes. Percolation of oxygenated water prevented the proliferation of anaerobic sulphate-reducing bacteria, which were prevalent in the oxic-anoxic sediments. At the predictive functional level, bacteria within the oxic treatment were enriched with genes associated with xenobiotics metabolism. Oxic sediments showed the greater bioremediation potential; however, the oxic-anoxic sediments supported a greater sea cucumber biomass. Overall, the results indicate that bacterial communities present in fully oxic sediments may enhance the metabolic capacity and bioremediation potential of deposit-feeder microbial systems. This study highlights the benefits of incorporating deposit-feeding invertebrates into effluent treatment systems, particularly when the sediment is oxygenated.
Using deep belief network modelling to characterize differences in brain morphometry in schizophrenia
Authors: Pinaya Walter H. L. , Gadelha Ary , Doyle Orla M. , Noto Cristiano , Zugman André , Cordeiro Quirino , Jackowski Andrea P. , Bressan Rodrigo A. , Sato João R.
Published: December 2016

Neuroimaging-based models contribute to increasing our understanding of schizophrenia pathophysiology and can reveal the underlying characteristics of this and other clinical conditions. However, the considerable variability in reported neuroimaging results mirrors the heterogeneity of the disorder. Machine learning methods capable of representing invariant features could circumvent this problem. In this structural MRI study, we trained a deep learning model known as deep belief network (DBN) to extract features from brain morphometry data and investigated its performance in discriminating between healthy controls (N = 83) and patients with schizophrenia (N = 143). We further analysed performance in classifying patients with a first-episode psychosis (N = 32). The DBN highlighted differences between classes, especially in the frontal, temporal, parietal, and insular cortices, and in some subcortical regions, including the corpus callosum, putamen, and cerebellum. The DBN was slightly more accurate as a classifier (accuracy = 73.6%) than the support vector machine (accuracy = 68.1%). Finally, the error rate of the DBN in classifying first-episode patients was 56.3%, indicating that the representations learned from patients with schizophrenia and healthy controls were not suitable to define these patients. Our data suggest that deep learning could improve our understanding of psychiatric disorders such as schizophrenia by improving neuromorphometric analyses.
Exploration of the Optimal Minimum Lymph Node Count after Colon Cancer Resection for Patients Aged 80 Years and Older
Authors: Guan Xu , Chen Wei , Jiang Zheng , Liu Zheng , Miao Dazhuang , Hu Hanqing , Zhao Zhixun , Yang Runkun , Wang Xishan
Published: December 2016

The elderly colon cancer (CC) patients are increasing and represent a heterogeneous patient group. The objectives of this study were to identify the features of lymph node examination and to explore the optimal minimum lymph node count after CC resection for patients aged ≥80. Using the Surveillance, Epidemiology, and End Results (SEER) database, we identified 65719 CC patients in stage I-III between 2004 and 2012, 26.0% of patients were aged ≥80. The median node count decreased with increasing age, which were 25.5, 20.2, 17.8 and 16.9 for patients aged 20–39, 40–59, 60–79, and ≥80. The rate of ≥12 nodes and the rate of node positivity for patients aged ≥80 were obviously lower than younger patients. Using X-tile analysis, we determined 9 nodes as the optimal node count for patients aged ≥80. Then, we compared the 5-year cancer specific survival (CSS) between patients with ≥9 nodes and <9 nodes. The results showed the 5-year CSSs were improved for patients with ≥9 nodes. Furthermore, the rate of node positivity and survival under the 9-node measure were equal to 12-node measure. Therefore, the lymph node examination should be discriminately evaluated for elder patients, and 9-node measure was available for patients aged ≥80.
A novel approach to quantify different iron forms in ex-vivo human brain tissue
Authors: Kumar Pravin , Bulk Marjolein , Webb Andrew , van der Weerd Louise , Oosterkamp Tjerk H. , Huber Martina , Bossoni Lucia
Published: December 2016

We propose a novel combination of methods to study the physical properties of ferric ions and iron-oxide nanoparticles inpost-mortemhuman brain, based on the combination of Electron Paramagnetic Resonance (EPR) and SQUID magnetometry. By means of EPR, we derive the concentration of the low molecular weight iron pool, as well as the product of its electron spin relaxation times. Additionally, by SQUID magnetometry we identify iron mineralization products ascribable to a magnetite/maghemite phase and a ferrihydrite (ferritin) phase. We further derive the concentration of magnetite/maghemite and of ferritin nanoparticles. To test out the new combined methodology, we studied brain tissue of an Alzheimer’s patient and a healthy control. Finally, we estimate that the size of the magnetite/maghemite nanoparticles, whose magnetic moments are blocked at room temperature, exceeds 40–50 nm, which is not compatible with the ferritin protein, the core of which is typically 6–8 nm. We believe that this methodology could be beneficial in the study of neurodegenerative diseases such as Alzheimer’s Disease which are characterized by abnormal iron accumulation in the brain.
Association of Bicipital Peritendinous Effusion with Subacromial Impingement: A Dynamic Ultrasonographic Study of 337 Shoulders
Authors: Chang Ke-Vin , Wu Wei-Ting , Özçakar Levent
Published: December 2016

Bicipital peritendinous effusion (BPE) is the most common biceps tendon abnormality and can be related to various shoulder ultrasonographic findings. Since the association of BPE with subacromial impingement is unclear, our study aimed to explore its association with the dynamic subacromial impingement test during ultrasound (US) imaging. We included 337 shoulders referred for US examinations and quantified the amount of BPE. Effusion more than 1 mm in thickness was considered a positive finding. A comparison of three grades of subacromial impingement, adjusted by patient demographics, static sonographic shoulder pathology, and physical findings, by using multivariate regression models revealed that the odds ratio of subacromial impingement (with 95% confidence intervals) in the presence of BPE was 6.54 (3.21–13.32) in grade 1, 6.93 (3.05–15.76) in grade 2 and 3.18 (1.48–6.80) in grade 3. An increase in age, subdeltoid bursitis, full-thickness supraspinatus tendon tear, and shoulder stiffness were also associated with BPE. Since our study demonstrated a positive association of BPE with all grades of impingement, a US dynamic subacromial impingement test is suggested when BPE is present. Future prospective studies are needed to identify changes in BPE after treatment.
Fast Quantum Rabi Model with Trapped Ions
Authors: Moya-Cessa Héctor M.
Published: December 2016

We show how to produce a fast quantum Rabi model with trapped ions. Its importance resides not only in the acceleration of the phenomena that may be achieved with these systems, from quantum gates to the generation of nonclassical states of the vibrational motion of the ion, but also in reducing unwanted effects such as the decay of coherences that may appear in such systems.
The concept of entropic rectifier facing experiments
Authors: Lairez D. , Clochard M.-C. , Wegrowe J.-E.
Published: December 2016

The transport of molecules in confined media is subject to entropic barriers. So theoretically, asymmetry of the confinement length may lead to molecular ratchets with entropy as the only driving force for the biased transport. We address experimentally this question by performing alternative ionic current measurements on electrolytes confined in neutral conical nanopores. In case anions and cations widely differ in size, we show that rectification of ionic current can be obtained that depends on ions size and cycle frequency, consistently with the entropic ratchet mechanism.
Antibacterial and anticancer PDMS surface for mammalian cell growth using the Chinese herb extract paeonol(4-methoxy-2-hydroxyacetophenone)
Authors: Jiao Jiajia , Sun Lili , Guo Zaiyu , Hou Sen , Holyst Robert , Lu Yun , Feng Xizeng
Published: December 2016

Polydimethylsiloxane (PDMS) is widely used as a cell culture platform to produce micro- and nano-technology based microdevices. However, the native PDMS surface is not suitable for cell adhesion and is always subject to bacterial pollution and cancer cell invasion. Coating the PDMS surface with antibacterial or anticancer materials often causes considerable harm to the non-cancer mammalian cells on it. We have developed a method to fabricate a biocompatible PDMS surface which not only promotes non-cancer mammalian cell growth but also has antibacterial and anticancer activities, by coating the PDMS surface with a Chinese herb extract, paeonol. Coating changes the wettability and the elemental composition of the PDMS surface. Molecular dynamic simulation indicates that the absorption of paeonol onto the PDMS surface is an energy favourable process. The paeonol-coated PDMS surface exhibits good antibacterial activity against both Gram-positive and Gram-negative bacteria. Moreover considerable antibacterial activity is maintained after the coated surface is rinsed or incubated in water. The coated PDMS surface inhibits bacterial growth on the contact surface and promotes non-cancer mammalian cell growth with low cell toxicity; meanwhile the growth of cancer cells is significantly inhibited. Our study will potentially guide PDMS surface modification approaches to produce biomedical devices.
LncRNAs expression profiling in normal ovary, benign ovarian cyst and malignant epithelial ovarian cancer
Authors: Wang Huan , Fu Ziyi , Dai Chencheng , Cao Jian , Liu Xiaoguang , Xu Juan , Lv Mingming , Gu Yun , Zhang Jingmin , Hua Xiangdong , Jia Genmei , Xu Sujuan , Jia Xuemei , Xu Pengfei
Published: December 2016

Long noncoding RNA (lncRNA) has been recognized as a regulator of gene expression, and the dysregulation of lncRNAs is involved in the progression of many types of cancer, including epithelial ovarian cancer (EOC). To explore the potential roles of lncRNAs in EOC, we performed lncRNA and mRNA microarray profiling in malignant EOC, benign ovarian cyst and healthy control tissues. In this study, 663 transcripts of lncRNAs were found to be differentially expressed in malignant EOC compared with benign and normal control tissues. We also selected 18 altered lncRNAs to confirm the validity of the microarray analysis using quantitative real-time PCR (qPCR). Pathway and Gene Ontology (GO) analyses demonstrated that these altered transcripts were involved in multiple biological processes, especially the cell cycle. Furthermore, Series Test of Cluster (STC) and lncRNA-mRNA co-expression network analyses were conducted to predict lncRNA expression trends and the potential target genes of lncRNAs. We also determined that two antisense lncRNAs (RP11-597D13.9 and ADAMTS9-AS1) were associated with their nearby coding genes (FAM198B, ADAMTS9), which participated in cancer progression. This study offers helpful information to understand the initiation and development mechanisms of EOC.
Warfarin genotyping with hybridization-induced aggregation on a poly(ethylene terephthalate) microdevice
Authors: Sloane Hillary S. , Carter Morgan B. , Cecil Alexa E. C. , Le Roux Delphine , Mills Daniel L. , Landers James P.
Published: December 2016

A novel genotyping method is established, using allele-specific PCR followed by hybridization-induced aggregation (HIA) of microbeads on a multiplexed microdevice.
A “molecule pump” prototype for exceptionally high efficiency adsorption and decomposition of rhodamine B based on the TiO2@MIL-100 composite
Authors: Chang Na , Li Yi-Xin , He Dong-Ying , Tang Zhi-Wei , Huang Yan-Feng , Yu Jing-Jian
Published: December 2016

The fabricated TiO2@MIL-100 composite not only demonstrates high capacity in adsorption of Rhodamine B (RhB) but also plays an important role as a “molecule pump” which offers excellent features and facilitates the following degradation of RhB with exceptionally high efficiency.
One-step extraction prior to two-step detection by ultra high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) to determine different groups of antibacterial agents in infant disposable hygiene products
Authors: Dang Hua , Liu Donghong , Hou Xiangchang , Wu Yuluan , Wang Bin , Dong Hao , Xian Yanping
Published: December 2016

UHPLC-MS/MS methods to determine fourteen antibacterial agents in infant disposable hygiene products were developed.
Intracellular GSH-activated galactoside photosensitizers for targeted photodynamic therapy and chemotherapy
Authors: Wang Chaochao , Liu Lichao , Cao Hongliang , Zhang Weian
Published: December 2016

A GSH-activated amphiphilic photosensitizer conjugated with galactose (TPP-S-S-Gal) has been developed for photodynamic therapy, which could self-assemble into spherical micelles and lead to cell apoptosis with chemotherapy after light irradiation.
Colloidal atomic layer deposition growth of PbS/CdS core/shell quantum dots
Authors: Nasilowski Michel , Nienhaus Lea , Bertram Sophie N. , Bawendi Moungi G.
Published: December 2016

We show here a self-limiting layer-by-layer growth of a CdS shell on PbS cores.
Quasi-solid electrolyte: a thixotropic gel of imogolite and an ionic liquid
Authors: Shikinaka K. , Taki N. , Kaneda K. , Tominaga Y.
Published: December 2016

We report a quasi-solid electrolyte comprising a transparent thixotropic gel swelled by an ionic liquid that is formed by a framework of single-walled aluminosilicate cylindrical inorganic “imogolite” nanotubes.
Engineering the surface chemistry of lead chalcogenide nanocrystal solids to enhance carrier mobility and lifetime in optoelectronic devices
Authors: Oh S. J. , Straus D. B. , Zhao T. , Choi J.-H. , Lee S.-W. , Gaulding E. A. , Murray C. B. , Kagan C. R.
Published: December 2016

We develop a hybrid ligand exchange process to enhance both mobility and lifetime of carriers in nanocrystal thin films.
Facile fabrication of hollow tubular mixed oxides for selective catalytic reduction of NOx at low temperature: a combined experimental and theoretical study
Authors: Wang Xiuyun , Lan Zhixin , Liu Yi , Luo Yongjin , Chen Jianjun , Jiang Lilong , Wang Yong
Published: December 2016

The 1D nanowire or hollow tubular structure of various transition metal oxides can be tuned by controlling heating rates.
Insights into the electrochemical performances of Bi anodes for Mg ion batteries using 25Mg solid state NMR spectroscopy
Authors: Liu Zigeng , Lee Jeongjae , Xiang Guolei , Glass Hugh F. J. , Keyzer Evan N. , Dutton Siân E. , Grey Clare P.
Published: December 2016

The relationship between fast Mg-ion dynamics and excellent electrochemical performance of Bi anode for MIB is illustrated by NMR technique.
Online sensing of palladium in flowing streams
Authors: Bu Xiaodong , Williams Michael , Jo Junyong , Koide Kazunori , Welch Christopher J.
Published: December 2016

Rapid palladium (Pd) catalyzed deallylation of an uncoloured reagent within a flowing stream affords a dose dependent colour formation that can be used for convenient online analysis of trace levels of Pd using a modified HPLC instrument.
Toward biocompatible dinitrosyl iron complexes: sugar-appended thiolates
Authors: Pulukkody Randara , Chupik Rachel B. , Montalvo Steven K. , Khan Sarosh , Bhuvanesh Nattamai , Lim Soon-Mi , Darensbourg Marcetta Y.
Published: December 2016

Herein, we report the synthesis, characterization, and NO transfer/release studies of the first ‘sugar appended’ DNICs, which harness the hydrophilicity and cell targeting potential of the thiosugar, in addition to showing increased stability in air.
Real-time analysis of Pd2(dba)3 activation by phosphine ligands
Authors: Janusson Eric , Zijlstra Harmen S. , Nguyen Peter P. T. , MacGillivray Landon , Martelino Julio , McIndoe J. Scott
Published: December 2016

Real-time UV-Vis/ESI-MS monitoring of Pd2(dba)3 activation provides insight into active species and the effect of activation protocol on their formation.
Water vapour effects on secondary organic aerosol formation in isoprene ozonolysis
Authors: Sakamoto Yosuke , Yajima Ryoji , Inomata Satoshi , Hirokawa Jun
Published: December 2016

A portion of stabilized Criegee intermediates formed in isoprene ozonolysis can be involved in SOA formation even under humid conditions.
Primary vs. secondary H-atom abstraction in the Cl-atom reaction with n-pentane
Authors: Pandit Shubhrangshu , Hornung Balázs , Dunning Greg T. , Preston Thomas J. , Brazener Kristian , Orr-Ewing Andrew J.
Published: December 2016

Velocity map imaging measurements and quasi-classical trajectory calculations on a newly developed, global potential energy surface combine to reveal the detailed mechanisms of reaction of Cl atoms with n-pentane.
Size-dependent one-photon- and two-photon-pumped amplified spontaneous emission from organometal halide CH3NH3PbBr3 perovskite cubic microcrystals
Authors: Zhang Zhen-Yu , Wang Hai-Yu , Zhang Yan-Xia , Li Kai-Jiao , Zhan Xue-Peng , Gao Bing-Rong , Chen Qi-Dai , Sun Hong-Bo
Published: December 2016

In the past few years, organometal halide light-emitting perovskite thin films and colloidal nanocrystals (NCs) have attracted significant research interest in the field of highly purified illuminating applications.
Structural, elastic, electronic, and optical properties of the tricycle-like phosphorene
Authors: Zhang Yang , Wu Zhi-Feng , Gao Peng-Fei , Fang Dang-Qi , Zhang Er-Hu , Zhang Sheng-Li
Published: December 2016

Tricycle-like phosphorenes with good structural stability, indirect band gaps, flexible properties, and good visible light absorption properties hold great promise for applications in the field of visible light harvesting and flexible nanoelectronic devices.
Transition-metal-free B–B and B–interelement reactions with organic molecules
Authors: Cuenca Ana B. , Shishido Ryosuke , Ito Hajime , Fernández Elena
Published: December 2016

This review is a guided tour along the activation modes and reactivity of B–B, B–Si, B–N, B–S, B–Se and B–P reagents, in the absence of any transition metal complex.
Reaction of CO, H2O, H2 and CO2 on the clean as well as O, OH and H precovered Fe(100) and Fe(111) surfaces
Authors: Liu Shaoli , Li Yong-Wang , Wang Jianguo , Jiao Haijun
Published: December 2016

The adsorption and activation of CO, H2O, CO2 and H2 on the clean as well as O, OH and H precovered Fe(100) surface at 0.25 ML coverage and Fe(111) surface at 0.33 ML coverage were computed (GGA-PBE) to investigate the catalytic activity of metallic iron.
Deep insight into the structure–activity relationship of Nb modified SnO2–CeO2 catalysts for low-temperature selective catalytic reduction of NO by NH3
Authors: Yan Lijun , Liu Yangyang , Zha Kaiwen , Li Hongrui , Shi Liyi , Zhang Dengsong
Published: December 2016

The structure–activity relationship of Nb modified SnO2–CeO2 catalysts was investigated for selective catalytic reduction of NO by NH3.
Hexamethylenetetramine carboxyborane: synthesis, structural characterization and CO releasing properties
Authors: Ayudhya T. I. , Raymond C. C. , Dingra N. N.
Published: December 2016

HMTA-CB is the first amine carboxyborane that yields CO under physiological conditions and is suitable for utilization as a slow CO-releaser.
Thermal, vibrational and optical properties of PrLuO3 interlanthanides from hydrothermally-derived precursors
Authors: Soares Júlia C. , Siqueira Kisla P. F. , de Sousa Filho Paulo C. , Moreira Roberto L. , Dias Anderson
Published: December 2016

PrLuO3 interlanthanides were prepared from 800 °C to 1600 °C using hydrothermally-derived precursors.
Photoluminescence and electroluminescence of cationic PtAu2 heterotrinuclear complexes with aromatic acetylides
Authors: Zhang Li-Yi , Xu Liang-Jin , Wang Jin-Yun , Zeng Xian-Chong , Chen Zhong-Ning
Published: December 2016

Cationic PtAu2 heterometallic complexes are used as phosphorescent emitters for highly efficient electroluminescent OLEDs through a solution process with the highest current efficiency of 51.7 cd A−1 and external quantum efficiency of 14.5%.
The kinetics and mechanism of α-glucosidase inhibition by F5-SP, a novel compound derived from sericin peptides
Authors: Fang Yuwen , Wang Shaoyun , Wu Jinhong , Zhang Li , Wang Zhengwu , Gan Li , He Jiajun , Shi Haiming , Hou Jingli
Published: December 2016

F5-SP, a novel α-glucosidase inhibitor derived from sericin peptides, is reported.
Mixing behaviour of WPI–pectin-complexes in meat dispersions: impact of biopolymer ratios
Authors: Zeeb Benjamin , Schöck Vanessa , Schmid Nicole , Majer Lisa , Herrmann Kurt , Hinrichs Jörg , Weiss Jochen
Published: December 2016

Particulated complexes composed of oppositely charged biopolymers were incorporated into highly concentrated protein matrices as potential fat replacers and structuring agents.
Model cheese aroma perception is explained not only by in vivo aroma release but also by salivary composition and oral processing parameters
Authors: Guichard E. , Repoux M. , Qannari E. M. , Laboure H. , Feron G.
Published: December 2016

The aim of the present paper was to determine, from four model cheeses differing in fat content and firmness, the respective impacts ofin vivoaroma release, bolus rheology, chewing activity, mouth coating and salivary composition on dynamic aroma perception.
An efficient organic solvent-free solution-processing strategy for high-mobility metal chalcogenide film growth
Authors: Zhao Jie , Jeon Il , Yi Qinghua , Jain Menka , Rummeli Mark H. , Song Pingyuan , Matsuo Yutaka , Zou Guifu
Published: December 2016

One of the primary challenges for high-quality metal chalcogenide film growth by a chemical solution approach is to avoid the use of volatile/hazardous organic solvents during the fabrication processes.
Water-head-driven microfluidic oscillators for autonomous control of periodic flows and generation of aqueous two-phase system droplets
Authors: Dang Van Bac , Kim Sung-Jin
Published: December 2016

This paper presents the mechanism of a water-head-driven oscillator and shows the generation of droplets with low interfacial tension.
Separation and dual detection of prostate cancer cells and protein biomarkers using a microchip device
Authors: Huang Wanfeng , Chang Chun-Li , Brault Norman D. , Gur Onur , Wang Zhe , Jalal Shadia I. , Low Philip S. , Ratliff Timothy L. , Pili Roberto , Savran Cagri A.
Published: December 2016

A micro-aperture platform was developed to separate and detect captured molecular and cellular prostate cancer biomarkers from a single sample.
Magnetic separation of microparticles by shape
Authors: Zhou Ran , Bai Feng , Wang Cheng
Published: December 2016

We demonstrated a novel technique of separating microparticles by shape with a uniform magnetic field. The magnetic torque breaks the rotational symmetry of the particle and causes shape-dependent migration.
Synthesis and DNA/RNA complementation studies of peptide nucleic acids containing 5-halouracils
Authors: Liu Chun-dong , Wang Jian-hua , Xie Yang , Chen Hang
Published: December 2016

A series of peptide nucleic acids containing 5-halouracils have been synthesized using the Fmoc protection strategy, and their enhanced hybridizations have been studied.
Structure–activity relationships for the synthesis of selective cyclooxygenase 2 inhibitors: an overview (2009–2016)
Authors: Carullo G. , Galligano F. , Aiello F.
Published: December 2016

An original point of view inside the SAR studies to develop new selective COX-2 inhibitors.
Efficient symmetrical bidentate dioxime ligand-accelerated homogeneous palladium-catalyzed Suzuki–Miyaura coupling reactions of aryl chlorides
Authors: Song Jinyi , Zhao Hongyan , Liu Yang , Han Huatao , Li Zhuofei , Chu Wenyi , Sun Zhizhong
Published: December 2016

A series of N,O-bidentate ligands were synthesized and studied as high activity ligands for palladium-catalyzed Suzuki–Miyaura cross-coupling reactions of aryl chlorides with arylboronic acids under mild conditions.
Finding reaction mechanisms, intuitive or otherwise
Authors: Dewyer Amanda L. , Zimmerman Paul M.
Published: December 2016

Mechanism discovery made possible through deterministic, computational reaction pathway searches.
Systematic study of constraints imposed by modified nucleoside triphosphates with protein-like side chains for use in in vitro selection
Authors: Wang Yajun , Ng Nicole , Liu Erkai , Lam Curtis H. , Perrin David M.
Published: December 2016

To select modified DNAzymes and aptamers, modified nucleoside triphosphates (dNTPs) must replace their unmodified counterparts in enzyme-catalyzed primer extension reactions and, once incorporated, serve as template bases in enzyme-catalyzed recopying.
A protecting-group-free synthesis of (+)-nephrosteranic, (+)-protolichesterinic, (+)-nephrosterinic, (+)-phaseolinic, (+)-rocellaric acids and (+)-methylenolactocin
Authors: Nallasivam Jothi L. , Fernandes Rodney A.
Published: December 2016

A collective synthesis of a γ-butyrolactone class of paraconic acids such as (+)-methylenolactocin, (+)-phaseolinic acid, (+)-nephrosteranic acid, (+)-nephrosterinic acid, (+)-rocellaric acid and (+)-protolichesterinic acid is described.
Exploring the electrochromic properties of poly(thieno[3,2-b]thiophene)s decorated with electron-deficient side groups
Authors: Shao Shan , Shi Jingjing , Murtaza Imran , Xu Panpan , He Yaowu , Ghosh Sanjay , Zhu Xiaosi , Perepichka Igor F. , Meng Hong
Published: December 2016

Electron-deficient cyanophenyl side groups decrease the response time and drastically improve the stability of electrochromic polymers.
Combination therapy of pDNA and siRNA by versatile carriers composed of poly(l-serine) modified polyethylenimines
Authors: Chen Jie , Guo Zhaopei , Lin Lin , Hu Yingying , Tian Huayu , Chen Meiwan , Chen Xuesi
Published: December 2016

A multi-gene-based approach was used by a versatile PEI–PSer copolymer in tumor therapy.
Catalytic asymmetric substitution of ortho-hydroxybenzyl alcohols with tetronic acid-derived enamines: enantioselective synthesis of tetronic acid-derived diarylmethanes
Authors: Xu Meng-Meng , Wang Hai-Qing , Wan Ying , He Guofeng , Yan Jingjing , Zhang Shu , Wang Shu-Liang , Shi Feng
Published: December 2016

The first catalytic asymmetric substitution ofortho-hydroxybenzyl alcohols with enamines has been established.
A [3 + 2]–[4 + 2]–[3 + 2] cycloaddition sequence of isoquinolinium ylide
Authors: Liu Ruzhang , Shi Rong-Guo , Sun Jing , Yan Chao-Guo
Published: December 2016

A unique [3 + 2]–[4 + 2]–[3 + 2] cycloaddition sequence of isoquinolinium ylide is investigated to afford polycyclic compounds with ten stereogenic centers.
Palladium-catalyzed cascade reaction of haloalkynes with unactivated alkenes for assembly of functionalized oxetanes
Authors: Li Jianxiao , Hu Weigao , Li Chunsheng , Yang Shaorong , Wu Wanqing , Jiang Huanfeng
Published: December 2016

A novel and efficient Pd-catalyzed intermolecular oxidative carboetherification of haloalkynes with unactivated alkenes for constructing functionalized oxetanes has been demonstrated.
Mechanism of selective C–H cyanation of 2-phenylpyridine with benzyl nitrile catalyzed by CuBr: a DFT investigation
Authors: Zhou Da-Gang , Yang Fan , Yang Xing , Yan Chao-Xian , Zhou Pan-Pan , Jing Huan-Wang
Published: December 2016

The mechanism of C–H cyanation of 2-phenylpyridine with 2-phenylacetonitrile catalyzed by the CuBr catalyst was elaborated based on DFT calculations.
Direct thiocyanation of ketene dithioacetals under transition-metal-free conditions
Authors: Chen Qiao , Lei Yingjie , Wang Yanfang , Wang Chao , Wang Yanan , Xu Zhaoqing , Wang Huan , Wang Rui
Published: December 2016

The first direct thiocyanation of ketene dithioacetals has been accomplished in the presence of N-chlorosuccinimide (NCS) and NH4SCN under transition-metal-free conditions. Terminal alkenes and hydrazine were identified to be qualified candidates for the process as well.
Synthesis and bioevaluation of 2-phenyl-5-methyl-2H-1,2,3-triazole-4-carboxylic acid/carbohydrazide derivatives as potent xanthine oxidase inhibitors
Authors: Shi Ailong , Wang Defa , Wang He , Wu Yue , Tian Haiqiu , Guan Qi , Bao Kai , Zhang Weige
Published: December 2016

A series of 2-phenyl-5-methyl-2H-1,2,3-triazole-4-carboxylic acids/carbohydrazides as analogues of febuxostat were synthesized and evaluated for their in vitro xanthine oxidase (XO) inhibitory activity.
Mechanism of enhancing visible-light photocatalytic activity of BiVO4via hybridization of graphene based on a first-principles study
Authors: Chen Yuxuan , Ma Xinguo , Li Di , Wang Huihu , Huang Chuyun
Published: December 2016

The interface properties of the hybrid graphene/BiVO4(001) heterojunction were investigated by first-principle calculations incorporating semiempirical dispersion-correction schemes to describe correctly van der Waals interactions.
A biocatalytic approach towards the stereoselective synthesis of protected inositols
Authors: Sayer L. H. , Florence G. J. , Smith T. K.
Published: December 2016

Immobilized TbINO1 produces >400 mg of chiral inositol 1-phosphate in a biocatalytic flow process.
Impact and oxidation of single silver nanoparticles at electrode surfaces: one shot versus multiple events
Authors: Ustarroz Jon , Kang Minkyung , Bullions Erin , Unwin Patrick R.
Published: December 2016

High bandwidth-low noise measurements of the electrochemical oxidation of individual silver nanoparticles (NPs) impacting on electrodes reveals the process to typically occur in a series of ‘bites’ (partial NP dissolution) rather than in a single shot, with the resulting current–time traces revealing considerable information on NP activity and transport near electrodes.
Tracking motion trajectories of individual nanoparticles using time-resolved current traces
Authors: Ma Wei , Ma Hui , Chen Jian-Fu , Peng Yue-Yi , Yang Zhe-Yao , Wang Hai-Feng , Ying Yi-Lun , Tian He , Long Yi-Tao
Published: December 2016

We report experiments and simulations demonstrating that multiple distinct motion trajectories of individual nanoparticles can be discerned from time-resolved current traces.
Cerium oxide standing out as an electron transport layer for efficient and stable perovskite solar cells processed at low temperature
Authors: Wang Xin , Deng Lin-Long , Wang Lu-Yao , Dai Si-Min , Xing Zhou , Zhan Xin-Xing , Lu Xu-Zhai , Xie Su-Yuan , Huang Rong-Bin , Zheng Lan-Sun
Published: December 2016

Low-temperature, solution-processed cerium oxide can serve as a promising electron transport layer to replace commonly used TiO2 in planar perovskite solar cells, with high efficiency and enhanced stability.
The direct hydrothermal deposition of cobalt-doped MoS2 onto fluorine-doped SnO2 substrates for catalysis of the electrochemical hydrogen evolution reaction
Authors: Roger Isolda , Moca Roberta , Miras Haralampos. N. , Crawford Kevin G. , Moran David A. J. , Ganin Alexey Y. , Symes Mark D.
Published: December 2016

Metal chalcogenides, and doped molybdenum sulfides in particular, have considerable potential as earth-abundant electrocatalysts for the hydrogen evolution reaction.
Water-borne foldable polymer solar cells: one-step transferring free-standing polymer films onto woven fabric electrodes
Authors: Zhen Hongyu , Li Kan , Chen Chaojian , Yu You , Zheng Zijian , Ling Qidan
Published: December 2016

“Water-borne polymer solar cells (PSCs)” are demonstrated for the first time and a PCE of 2.90% was achieved using P3HT:PCBM.
Honeycomb-layer structured Na3Ni2BiO6 as a high voltage and long life cathode material for sodium-ion batteries
Authors: Bhange Deu S. , Ali Ghulam , Kim Dong-Hyun , Anang Daniel A. , Shin Tae Joo , Kim Min-Gyu , Kang Yong-Mook , Chung Kyung Yoon , Nam Kyung-Wan
Published: December 2016

Layer structured Na3Ni2BiO6 with honeycomb ordering is explored as a new high voltage and long life cathode material for sodium-ion batteries.
Bio-directed morphology engineering towards hierarchical 1D to 3D macro/meso/nanoscopic morph-tunable carbon nitride assemblies for enhanced artificial photosynthesis
Authors: Xu Jun , Zhou Han , Shi Kaiyu , Yan Runyu , Tang Yiwen , Liu Jian , Ye Jinhua , Zhang Di , Fan Tongxiang
Published: December 2016

Hierarchical 1D to 3D multiscale morph-tunable g-C3N4 assemblies were synthesized via a two-step transformation strategy for enhanced CO2 photoreduction.
Preparation of –SO3−-coated nanopromoters for methane hydrate formation: effects of the existence pattern of –SO3− groups on the promotion efficiency
Authors: Wang Fei , Guo Gang , Luo Sheng-Jun , Guo Rong-Bo
Published: December 2016

The –SO3−-coated nano-promoters resulted in methane hydrate formation process completing within 1–2 h, and displayed storage capacity over 140 v/v.
Fe–Nxmoiety-modified hierarchically porous carbons derived from porphyra for highly effective oxygen reduction reaction
Authors: Zhang Zhengping , Gao Xinjin , Dou Meiling , Ji Jing , Wang Feng
Published: December 2016

Fe–Nxmoiety-modified nitrogen-doped hierarchically porous carbon, which is derived from porphyra, exhibits an excellent catalytic performance for oxygen reduction.
Distinct nanoscale reaction pathways in a sulfide material for sodium and lithium batteries
Authors: Boebinger Matthew G. , Xu Michael , Ma Xuetian , Chen Hailong , Unocic Raymond R. , McDowell Matthew T.
Published: December 2016

Copper sulfide is found to exhibit excellent cycle life in Na-ion batteries, and multiscale in situ techniques (TEM and X-ray diffraction) are used to reveal unique aspects of the electrochemical reaction of sodium with this material.
Emergence of highly-ordered hierarchical nanoscale aggregates on electrostatic binding of self-assembled multivalent (SAMul) cationic micelles with polyanionic heparin
Authors: Vieira Vania M. P. , Liljeström Ville , Posocco Paola , Laurini Erik , Pricl Sabrina , Kostiainen Mauri A. , Smith David K.
Published: December 2016

Self assembled cationic micelles form well-defined structurally ordered hierarchical nanoscale aggregates on interaction with polyanionic heparin in solution.
Sulfonated poly(ether ether ketone) [SPEEK] nanocomposites based on hybrid nanocarbons for the detection and discrimination of some lung cancer VOC biomarkers
Authors: Nag Sananda , Castro Mickaël , Choudhary Veena , Feller Jean-François
Published: December 2016

The analysis of a volatolome is a promising approach to allow the early diagnosis of diseases such as cancers.
Cell adhesion on glassy scaffolds with a different mechanical response
Authors: Shimomura Shinichiro , Matsuno Hisao , Sanada Kazuaki , Tanaka Keiji
Published: December 2016

Fibroblasts can sense the surface stiffness of polymeric bilayers depending on a mechanical response from the rubbery layer underneath.
Serum-free culturing of human mesenchymal stem cells with immobilized growth factors
Authors: Mao Hongli , Kim Seong Min , Ueki Masashi , Ito Yoshihiro
Published: December 2016

Growth factors were immobilized with photo-reactive gelatin and used for serum-free human mesenchymal stem cell (hMSC) culturing.
Stimuli-responsive delivery vehicles based on mesoporous silica nanoparticles: recent advances and challenges
Authors: Zhu Jianhua , Niu Yimin , Li Yang , Gong Yaxiang , Shi Huihui , Huo Qiang , Liu Yang , Xu Qunwei
Published: December 2016

In the past decade, stimuli-responsive drug delivery vehicles based on surface-functionalized mesoporous silica nanoparticles have attracted intense interest as a new type of drug carrier.
Transferring the bendable substrateless GaN LED grown on a thin C-rich SiC buffer layer to flexible dielectric and metallic plates
Authors: Cheng Chih-Hsien , Huang Tzu-Wei , Wu Chung-Lun , Chen Mu Ku , Chu Cheng Hung , Wu Yuh-Renn , Shih Min-Hsiung , Lee Chao-Kuei , Kuo Hao-Chung , Tsai Din Ping , Lin Gong-Ru
Published: December 2016

The first demonstration on the bendable substrateless GaN LED on a-SiC buffer transferring to the dielectric and metallic substrates.
Computational search for two-dimensional intrinsic half-metals in transition-metal dinitrides
Authors: Liu Junyan , Liu Zhifeng , Song Tielei , Cui Xin
Published: December 2016

A promising 2D material (1T-TaN2 monolayer) with intrinsic half-metallicity and ferromagnetism has been characterized by a first-principles computational search.
Large-scale colloidal synthesis of Cu5FeS4 compounds and their application in thermoelectrics
Authors: Zhang Aijuan , Shen Xingchen , Zhang Zhi , Lu Xu , Yao Wei , Dai Jiyan , Xie Dandan , Guo Lijie , Wang Guoyu , Zhou Xiaoyuan
Published: December 2016

A successful large-scale synthesis of p-type Cu5FeS4 nanocrystals for thermoelectric applications is achieved. The peak zT value reached 0.56 at 690 K, about 47% higher than the-state-of-art value for this material.
Single‐fed broadband circularly polarised dipole antenna with simple structure
Authors: Xue Hai‐Gao , Yang Xue‐Xia , Ma Zhewang , Wang Yan
Published: December 2016

A new designed single‐fed broadband circularly polarised dipole antenna with simple structure is presented. The antenna is composed of a horizontal electric dipole and an equivalent magnetic dipole realised by two vertical patches quarter‐wave shorted at the bottom. The electric dipole and equivalent magnetic dipole are positioned along the same axis to excite the orthogonal radiation fields with the same amplitude and 90° phase difference for circular polarisation. A broad impedance bandwidth of 69% (|S11| < −10 dB) from 1.6 to 3.2 GHz is achieved, which covers the whole 3 dB axial ratio bandwidth of 42.7% from 2.0 to 3.1 GHz. In this operation frequency band, the measured gain is above 6.4 dBi and the peak value is 8.4 dBi.
Period spacing of gravity modes strongly affected by rotation
Authors: Prat V. , Mathis S. , Lignières F. , Ballot J. , Culpin P.-M.
Published: December 2016

Context. As of today, asteroseismology mainly allows us to probe the internal rotation of stars when modes are only weakly affected by rotation using perturbative methods. Such methods cannot be applied to rapidly rotating stars, which exhibit complex oscillation spectra. In this context, the so-called traditional approximation, which neglects the terms associated with the latitudinal component of the rotation vector, describes modes that are strongly affected by rotation. This approximation is sometimes used for interpreting asteroseismic data, however, its domain of validity is not established yet.

Aims. We aim at deriving analytical prescriptions for period spacings of low-frequency gravity modes strongly affected by rotation through the full Coriolis acceleration (i.e. without neglecting any component of the rotation vector), which can be used to probe stellar internal structure and rotation.

Methods. We approximated the asymptotic theory of gravito-inertial waves in uniformly rotating stars using ray theory described in a previous paper in the low-frequency regime, where waves are trapped near the equatorial plane. We put the equations of ray dynamics into a separable form and used the Einstein-Brillouin-Keller (EBK) quantisation method to compute modes frequencies from rays.

Results. Two spectral patterns that depend on stratification and rotation are predicted within this new approximation: one for axisymmetric modes and one for non-axisymmetric modes.

Conclusions. The detection of the predicted patterns in observed oscillation spectra would give constraints on internal rotation and chemical stratification of rapidly rotating stars exhibiting gravity modes, such as γ Doradus, SPB, or Be stars. The obtained results have a mathematical form that is similar to that of the traditional approximation, but the new approximation takes the full Coriolis, which allows for propagation near the centre, and centrifugal accelerations into account.
Prepartum maternal diets supplemented with oilseeds alter the fatty acid profile in bovine neonatal plasma possibly through reduced placental expression of fatty acid transporter protein 4 and fatty acid translocase
Authors: Salehi Reza , Ambrose Divakar J.
Published: December 2016

In the present study, we determined the effects of maternal dietary fat and the type of fat on plasma fatty acids and the expression of placental fatty acid transporter genes. In Experiment 1, Holstein cows in the last 35 days of gestation received diets containing sunflower seed (n = 8; high in linoleic acid (LA)), canola seed (n = 7; high in oleic acid (OLA)) or no oilseed (n = 7; control). Fatty acids were quantified in dam and neonate plasma at calving. In Experiment 2, placental cotyledons were collected (LA: n = 4; OLA: n = 4; control: n = 5) to quantify gene expression. Maternal long-chain polyunsaturated fatty acids, neonatal total n-3 fatty acids and eicosapentaenoic acid (EPA) declined, whereas docosahexaenoic acid (DHA) and total fat tended to decline following fat supplementation prepartum. Feeding of LA versus OLA prepartum tended to increase peroxisome proliferator-activated receptor α (PPARA) expression, whereas peroxisome proliferator-activated receptor δ (PPARD) and peroxisome proliferator-activated receptor γ (PPARG) expression tended to be higher in OLA- than LA-fed cows. Expression of fatty acid transporter protein 4 (FATP4) and fatty acid translocase (FAT/CD36) expression was lower in placental tissue of cows fed fat compared with control cows. Reduced total n-3 fatty acids, EPA and DHA in neonates born of dams fed fat prepartum is likely due to changes in PPARs and reduced expression of placental FATP4 and FAT/CD36.
Modulation of adiponectin system expression in the porcine uterus during early pregnancy by prostaglandin E2 and F2α
Authors: Dobrzyn Kamil , Smolinska Nina , Szeszko Karol , Kiezun Marta , Maleszka Anna , Kaminski Tadeusz
Published: December 2016

Studies have demonstrated that adiponectin could be a link between reproductive functions and energy metabolism in animals. The aim of the present study was to investigate the effects of prostaglandin (PG) E2 and PGF2α (10, 50, 100, 250 and 500 ng mL–1) on the expression and secretion of adiponectin and its receptor genes and proteins by cultured in vitro porcine endometrial and myometrial tissues on Days 10–28 of pregnancy and Days 10–11 of the oestrous cycle. The gene expression was analysed using the real-time PCR method. Adiponectin protein secretion was determined by ELISA, whereas the receptors proteins content was defined using Western Blot analysis. Both PGE2 and PGF2α modulated the expression of adiponectin system genes and proteins in the uterus during early pregnancy. PGE2 and PGF2α had similar effects on the adiponectin system, which differed between the stages of gestation and between pregnancy and the oestrous cycle. On Days 10–11 of gestation, PGE2 and PGF2α generally increased adiponectin secretion by endometrial and myometrial tissues. Both PGs decreased levels of endometrial adiponectin receptor type 1 (AdipoR1), whereas only PGF2α decreased myometrial levels of AdipoR1. Both PGs increased myometrial adiponectin receptor type 2 (AdipoR2) levels. On Days 12–13 of gestation, PGE2 decreased AdipoR1 concentrations in both tissues and AdipoR2 levels in the endometrium. PGF2α decreased myometrial concentrations of both receptors. On Days 15–16 of gestation, both PGE2 and PGF2α increased concentrations of AdipoR1 and AdipoR2 in the endometrium and myometrium. PGE2 stimulated the secretion of adiponectin in the endometrium, but not in the myometrium. On Days 27–28 of pregnancy, both PGE2 and PGF2α inhibited the expression of AdipoR1 and AdipoR2 in endometrial and myometrial tissues and decreased the secretion of endometrial adiponectin. Both PGE2 and PGF2α had tissue-specific and dose-dependent effects on the adiponectin system.
Printed highly conductive Cu films with strong adhesion enabled by low-energy photonic sintering on low-Tg flexible plastic substrate
Authors: Wu Xinzhou , Shao Shuangshuang , Chen Zheng , Cui Zheng
Published: December 2016

Copper (Cu) films and circuits were fabricated by screen-printing Cu nanoink on low-Tg (glass transition temperature) flexible plastic substrates (PEN and PET) instead of widely used high-Tg polyimide (PI) substrate. Photonic sintering of printed Cu films was carried out using intensive pulsed light (IPL). Low resistivities of 28 μΩ · cm on PEN and 44 μΩ · cm on PET were obtained without damaging the substrates. The sintered Cu films exhibited strong adhesion to PEN and PET substrates, with measured adhesion strength of 5B by the ASTM D3359 international standard, whereas the top part of the copper film on the PI substrate was stripped off during the adhesion test. The sintered Cu films also showed excellent stability in harsh conditions and mechanical flexibility in rolling tests. The underlying mechanisms of the high conductivity and strong adhesion on PEN and PET substrates with low-energy IPL sintering were investigated. Simple circuits and radio frequency identification antennas were made by screen-printing Cu nanoink and IPL sintering, demonstrating the technique’s feasibility for practical applications.