bluuebunny/crossref_metadata_2025 huggingface dataset:
Long non-coding RNA CCAT1 promotes gallbladder cancer development via negative modulation of miRNA-218-5p
Authors: Ma M-Z , Chu B-F , Zhang Y , Weng M-Z , Qin Y-Y , Gong W , Quan Z-W
Published: January 2015

Protein-coding genes account for only ~2% of the human genome, whereas the vast majority of transcripts are non-coding RNAs (ncRNAs) including long ncRNAs (lncRNAs). A growing volume of literature has proposed that lncRNAs are important factors in cancer. Colon cancer-associated transcript-1 (CCAT1), an lncRNA, which was first identified in colon cancer, was previously shown to promote tumor development and be a negative prognostic factor in gastric cancer. However, the mechanism through which CCAT1 exerts its oncogenic activity remains largely unknown. Recently, a novel regulatory mechanism has been proposed in which RNAs can cross-talk with each other via competing shared for microRNAs (miRNAs). The proposed competitive endogenous RNAs could mediate the bioavailability of miRNAs on their targets, thus imposing another level of posttranscriptional regulation. In this study, we demonstrated that CCAT1 was upregulated in gallbladder cancer (GBC) tissues. CCAT1 silencing downregulated, whereas CCAT1 overexpression enhanced the expression of miRNA-218-5p target gene Bmi1 through competitively ‘spongeing’ miRNA-218-5p. Our data revealed that CCAT1 knockdown impaired the proliferation and invasiveness of GBC cells, at least in part through affecting miRNA-218-5p-mediated regulation of Bmi1. Moreover, CCAT1 transcript level was correlated with Bmi1 mRNA level in GBC tissues. Together, these results suggest that CCAT1 is a driver of malignancy, which acts in part through ‘spongeing’ miRNA-218-5p.
Endoplasmic reticulum stress induces ligand-independent TNFR1-mediated necroptosis in L929 cells
Authors: Saveljeva S , Mc Laughlin S L , Vandenabeele P , Samali A , Bertrand M J M
Published: January 2015

Endoplasmic reticulum (ER) stress-induced cellular dysfunction and death is associated with several human diseases. It has been widely reported that ER stress kills through activation of the intrinsic mitochondrial apoptotic pathway. Here we demonstrate that ER stress can also induce necroptosis, an receptor-interacting protein kinase 1 (RIPK1)/RIPK3/mixed lineage kinase domain-like protein (MLKL)-dependent form of necrosis. Remarkably, we observed that necroptosis induced by various ER stressors in L929 cells is dependent on tumor necrosis factor receptor 1 (TNFR1), but occurs independently of autocrine TNF or lymphotoxin α production. Moreover, we found that repression of either TNFR1, RIPK1 or MLKL did not protect the cells from death but instead allowed a switch to ER stress-induced apoptosis. Interestingly, while caspase inhibition was sufficient to protect TNFR1- or MLKL-deficient cells from death, rescue of the RIPK1-deficient cells additionally required RIPK3 depletion, indicating a switch back to RIPK3-dependent necroptosis in caspase-inhibited conditions. The finding that ER stress also induces necroptosis may open new therapeutic opportunities for the treatment of pathologies resulting from unresolved ER stress.
Candidate tumor suppressor B-cell translocation gene 3 impedes neoplastic progression by suppression of AKT
Authors: Cheng Y-C , Chen P-H , Chiang H-Y , Suen C-S , Hwang M-J , Lin T-Y , Yang H-C , Lin W-C , Lai P-L , Shieh S-Y
Published: January 2015

BTG3 (B-cell translocation gene 3) is a p53 target that also binds and inhibits E2F1. Although it connects two major growth-regulatory pathways functionally and is downregulated in human cancers, whether and how BTG3 acts as a tumor suppressor remain largely uncharacterized. Here we present evidence that BTG3 binds and suppresses AKT, a kinase frequently deregulated in cancers. BTG3 ablation results in increased AKT activity that phosphorylates and inhibits glycogen synthase kinase 3β. Consequently, we also observed elevated β-catenin/T-cell factor activity, upregulation of mesenchymal markers, and enhanced cell migration. Consistent with these findings, BTG3 overexpression suppressed tumor growth in mouse xenografts, and was associated with diminished AKT phosphorylation and reduced β-catenin in tissue specimens. Significantly, a short BTG3-derived peptide was identified, which recapitulates these effects in vitro and in cells. Thus, our study provides mechanistic insights into a previously unreported AKT inhibitory pathway downstream of p53. The identification of an AKT inhibitory peptide also unveils a new avenue for cancer therapeutics development.
Tamoxifen reduces fat mass by boosting reactive oxygen species
Authors: Liu L , Zou P , Zheng L , Linarelli L E , Amarell S , Passaro A , Liu D , Cheng Z
Published: January 2015

As the pandemic of obesity is growing, a variety of animal models have been generated to study the mechanisms underlying the increased adiposity and development of metabolic disorders. Tamoxifen (Tam) is widely used to activate Cre recombinase that spatiotemporally controls target gene expression and regulates adiposity in laboratory animals. However, a critical question remains as to whether Tam itself affects adiposity and possibly confounds the functional study of target genes in adipose tissue. Here we administered Tam to Cre-absent forkhead box O1 (FoxO1) floxed mice (f-FoxO1) and insulin receptor substrate Irs1/Irs2 double floxed mice (df-Irs) and found that Tam induced approximately 30% reduction (P<0.05) in fat mass with insignificant change in body weight. Mechanistically, Tam promoted reactive oxygen species (ROS) production, apoptosis and autophagy, which was associated with downregulation of adipogenic regulator peroxisome proliferator-activated receptor gamma and dedifferentiation of mature adipocytes. However, normalization of ROS potently suppressed Tam-induced apoptosis, autophagy and adipocyte dedifferentiation, suggesting that ROS may account, at least in part, for the changes. Importantly, Tam-induced ROS production and fat mass reduction lasted for 4–5 weeks in the f-FoxO1 and df-Irs mice. Our data suggest that Tam reduces fat mass via boosting ROS, thus making a recovery period crucial for posttreatment study.
Maturation of the HIV-1 core by a non-diffusional phase transition
Authors: Frank Gabriel A. , Narayan Kedar , Bess Julian W. , Del Prete Gregory Q. , Wu Xiongwu , Moran Amy , Hartnell Lisa M. , Earl Lesley A. , Lifson Jeffrey D. , Subramaniam Sriram
Published: January 2015

The formation of the HIV-1 core is the final step in the viral maturation pathway, resulting in the formation of infectious virus. Most current models for HIV-1 core formation suggest that, upon proteolytic cleavage from the immature Gag, capsid (CA) dissociates into the viral interior before reforming into the core. Here we present evidence for an alternate view of core formation by taking advantage of our serendipitous observation of large membrane-enclosed structures in HIV-1 supernatants from infected cells. Cryo-electron tomographic studies show that these structures, which contain ordered arrays of what is likely the membrane-associated matrix protein, contain multiple cores that can be captured at different stages of maturation. Our studies suggest that HIV maturation involves a non-diffusional phase transition in which the detaching layer of the cleaved CA lattice is gradually converted into a roll that ultimately forms the surface of the mature conical core.
Generation of spin currents by surface plasmon resonance
Authors: Uchida K. , Adachi H. , Kikuchi D. , Ito S. , Qiu Z. , Maekawa S. , Saitoh E.
Published: January 2015

Surface plasmons, free-electron collective oscillations in metallic nanostructures, provide abundant routes to manipulate light–electron interactions that can localize light energy and alter electromagnetic field distributions at subwavelength scales. The research field of plasmonics thus integrates nano-photonics with electronics. In contrast, electronics is also entering a new era of spintronics, where spin currents play a central role in driving devices. However, plasmonics and spin-current physics have so far been developed independently. Here we report the generation of spin currents by surface plasmon resonance. Using Au nanoparticles embedded in Pt/BiY2Fe5O12 bilayer films, we show that, when the Au nanoparticles fulfill the surface-plasmon-resonance conditions, spin currents are generated across the Pt/BiY2Fe5O12 interface. This spin-current generation cannot be explained by conventional heating effects, requiring us to introduce nonequilibrium magnons excited by surface-plasmon-induced evanescent electromagnetic fields in BiY2Fe5O12. This plasmonic spin pumping integrates surface plasmons with spin-current physics, opening the door to plasmonic spintronics.
Glucocorticoids mediate induction of microRNA-708 to suppress ovarian cancer metastasis through targeting Rap1B
Authors: Lin Kai-Ti , Yeh Yu-Ming , Chuang Chi-Mu , Yang Scarlett Y. , Chang Jer-Wei , Sun Shu-Pin , Wang Yi-Shiang , Chao Kuan-Chong , Wang Lu-Hai
Published: January 2015

Glucocorticoids are widely used in conjunction with chemotherapy for ovarian cancer to prevent hypersensitivity reactions. Here we reveal a novel role for glucocorticoids in the inhibition of ovarian cancer metastasis. Glucocorticoid treatments induce the expression of miR-708, leading to the suppression of Rap1B, which result in the reduction of integrin-mediated focal adhesion formation, inhibition of ovarian cancer cell migration/invasion and impaired abdominal metastasis in an orthotopic xenograft mouse model. Restoring Rap1B expression reverts glucocorticoid-miR-708 cascade-mediated suppression of ovarian cancer cell invasion and metastasis. Clinically, low miR-708 and high Rap1B are found in late-state ovarian tumours, as compared with normal, and patients with high miR-708 show significantly better survival. Overall, our findings reveal an opportunity for glucocorticoids and their downstream mediators, miR-708 or Rap1B, as therapeutic modalities against metastatic ovarian epithelial cancer.
Co-infection alters population dynamics of infectious disease
Authors: Susi Hanna , Barrès Benoit , Vale Pedro F. , Laine Anna-Liisa
Published: January 2015

Co-infections by multiple pathogen strains are common in the wild. Theory predicts co-infections to have major consequences for both within- and between-host disease dynamics, but data are currently scarce. Here, using common garden populations of Plantago lanceolata infected by two strains of the pathogen Podosphaera plantaginis, either singly or under co-infection, we find the highest disease prevalence in co-infected treatments both at the host genotype and population levels. A spore-trapping experiment demonstrates that co-infected hosts shed more transmission propagules than singly infected hosts, thereby explaining the observed change in epidemiological dynamics. Our experimental findings are confirmed in natural pathogen populations—more devastating epidemics were measured in populations with higher levels of co-infection. Jointly, our results confirm the predictions made by theoretical and experimental studies for the potential of co-infection to alter disease dynamics across a large host–pathogen metapopulation.
An injured tissue affects the opposite intact peritoneum during postoperative adhesion formation
Authors: Suzuki Tatsuya , Kono Toru , Bochimoto Hiroki , Hira Yoshiki , Watanabe Tsuyoshi , Furukawa Hiroyuki
Published: January 2015

The pathophysiology of adhesion formation needs to be clarified to reduce the adhesion-related morbidity. The epithelial characteristics of the peritoneum suggest a protective role against adhesion formation, yet how the peritoneum is involved in adhesion formation is not well characterized. We microscopically observed an experimental model of adhesion formation to investigate the effects of an injured tissue on the opposite intact peritoneum. Adhesions were induced between injured and intact hepatic lobes and the intact peritoneum opposite to the injured tissue was examined for 8 days. The opposite intact peritoneum was denuded of mesothelial cells for 6 hours and the remnant mesothelial cells changed morphologically for 24 hours. The detachment of mesothelial cells allowed fibrin to attach to the basement membrane of the opposite peritoneum, connecting the two lobes. Moreover, macrophages and myofibroblasts accumulated between the two lobes and angiogenesis occurred from the opposite intact lobe to the injured lobe. These observations indicate that an injured tissue deprives the opposite intact peritoneum of its epithelial structure and causes fibrous adhesions to the opposite intact tissue. This study implies a possible role of mesothelial cells for barrier function against adhesion formation, that is, keeping mesothelial cells intact might lead to its prophylaxis.
Comparison of the volatile profile of vine-shoots and oak chips by headspace-gas chromatography-mass spectrometry (HS-GC-MS)
Authors: Delgado de la Torre M. Pilar , Priego-Capote Feliciano , Luque de Castro María Dolores
Published: January 2015

Profiling and identification analysis of the volatile fraction formed by heating vine-shoots or oak chips powder have been obtained by headspace–gas chromatography--mass spectrometry (HS--GC--MS).
Determination of seven anticoagulant rodenticides in human serum by ultra-performance liquid chromatography-mass spectrometry
Authors: Dong Xinfeng , Liang Shuxuan , Sun Hanwen
Published: January 2015

Anticoagulant rodenticide residues (warfarin, coumatetralyl, diphacinone, chlorophacinone, brodifacoum, bromadiolone, and flocoumafen) in human serum were determined by sensitive high-performance liquid chromatography-mass spectrometry.
Evaluation of organochlorine pesticides in soil using ultrasound-assisted liquid phase microextraction
Authors: Zhao Wenting , Wu Tong , Li Jindong , Lu Runhua , Wang Peng , Chen Yue , Liu Donghui , Zhou Zhiqiang
Published: January 2015

Procedure used for ultrasound-assisted liquid phase microextraction (USA-LPME).
An enzyme-free hydrogen peroxide sensor based on Ag/FeOOH nanocomposites
Authors: Zhang Jian , Zheng Jianbin
Published: January 2015

Experimental procedure for the preparation of Ag/FeOOH and the detection of H2O2.
Economical and rapid manufacturing of lateral flow immunosensor using fountain pens and gold colloidal solution
Authors: Choi Seoyeon , Lee Jung-Hyun , Choi Jong-Soon , Jung Hyo-Il
Published: January 2015

Lateral flow assay is a simple and rapid diagnostic tool and consequently has been widely used in both academia and industry.
Assessing dimerisation degree and cooperativity in a biomimetic small-molecule model by pulsed EPR
Authors: Ackermann K. , Giannoulis A. , Cordes D. B. , Slawin A. M. Z. , Bode B. E.
Published: January 2015

Pulsed electron paramagnetic resonance (EPR) spectroscopy is used for titrating spin-labelled terpyridine with Zn(ii)-solution to study complex formation. This system can serve as a small-molecule model system for tuneable dimerisation.
Electrochemical synthesis of small-sized red fluorescent graphene quantum dots as a bioimaging platform
Authors: Tan Xiaoyun , Li Yunchao , Li Xiaohong , Zhou Shixin , Fan Louzhen , Yang Shihe
Published: January 2015

We report water-soluble, 3 nm uniform-sized graphene quantum dots (GQDs) with red emission prepared by electrochemical exfoliation of graphite in K2S2O8 solution. Such GQDs show a great potential as biological labels for cellular imaging.
A novel aqueous lithium–oxygen cell based on the oxygen-peroxide redox couple
Authors: Matsui Masaki , Wada Ayumi , Matsuda Yasuaki , Yamamoto Osamu , Takeda Yasuo , Imanishi Nobuyuki
Published: January 2015

We investigated a highly reversible oxygen-peroxide redox couple on a catalyst-free carbon-based electrode, for aqueous lithium–air battery applications.
Stable bis(trifluoromethyl)nickel(iii) complexes
Authors: Tang Fengzhi , Rath Nigam P. , Mirica Liviu M.
Published: January 2015

Tetradentate macrocyclic N-donor ligands support uncommonly stable bis(trifluoromethyl)Ni(iii) complexes that are similar to the intermediates proposed in Ni-catalyzed cross-coupling reactions.
Activatable photodynamic destruction of cancer cells by NIR dye/photosensitizer loaded liposomes
Authors: Yuan Ahu , Tang Xiaolei , Qiu Xuefeng , Jiang Ke , Wu Jinhui , Hu Yiqiao
Published: January 2015

The phototoxicity of Chlorin e6 (Ce6) for photodynamic therapy (PDT) was found to be effectively suppressed by indocyanine green (ICG), a near infrared (NIR) dye.
New generation solar cells: concepts, trends and perspectives
Authors: Ragoussi Maria-Eleni , Torres Tomás
Published: January 2015

Organic, dye-sensitized and perovskite solar cell technologies have triggered widespread interest in recent years due to their very promising potential towards a high solar electricity future. A number of important milestones have marked the roadmap of each sector on the way to today's outstanding performances, but there still remains plenty of scope for further improvement. The most influential landmarks, together with basic concepts and future perspectives are unraveled in this review.
A microporous metal–organic framework with rare lvt topology for highly selective C2H2/C2H4separation at room temperature
Authors: Wen Hui-Min , Li Bin , Wang Hailong , Wu Chuande , Alfooty Khalid , Krishna Rajamani , Chen Banglin
Published: January 2015

A new porous MOF UTSA-60a with lvt topology exhibits highly selective separation of the C2H2–C2H4mixture at ambient temperature.
Ethanol gas sensor based on a self-supporting hierarchical SnO2 nanorods array
Authors: Liu Qian , Zhang Zhenyu , Li Wenyao , Xu Kaibing , Zou Rujia , Hu Junqing
Published: January 2015

3D hierarchical SnO2 nanorods array on homogeneous substrate was prepared by a one-step solvothermal route, which exhibited a high response to ethanol gas.
Transient anions of cis- and trans-cyclooctene studied by electron-impact spectroscopy
Authors: Regeta Khrystyna , Nagarkar Amit , Kilbinger Andreas F. M. , Allan Michael
Published: January 2015

Electron attachment to the π* orbitals of trans- and cis-cyclooctene was measured in the quest to understand the frontier orbitals and their role in reactivity.
Experimental and theoretical charge density distribution in Pigment Yellow 101
Authors: Du Jonathan J. , Váradi Linda , Tan Jinlong , Zhao Yiliang , Groundwater Paul W. , Platts James A. , Hibbs David E.
Published: January 2015

The charge density distribution in 2,2′-dihydroxy-1,1′-naphthalazine (Pigment Yellow 101; P.Y.101) has been determined using high-resolution X-ray diffraction and multipole refinement, along with density functional theory calculations.
Systematic evaluation of bundled SPC water for biomolecular simulations
Authors: Gopal Srinivasa M. , Kuhn Alexander B. , Schäfer Lars V.
Published: January 2015

How accurate is bundled SPC water as inner shell solvent for hybrid all-atom/coarse-grained simulations?
Prospects for plasmonic hot spots in single molecule SERS towards the chemical imaging of live cells
Authors: Radziuk Darya , Moehwald Helmuth
Published: January 2015

Single molecule surface enhanced Raman scattering (SM-SERS) is a highly local effect occurring at sharp edges, interparticle junctions and crevices or other geometries with a sharp nanoroughness of plasmonic nanostructures (“hot spots”) for an analyte detection.
From charge transfer to electron transfer in halogen-bonded complexes of electrophilic bromocarbons with halide anions
Authors: Rosokha Sergiy V. , Traversa Alfredo
Published: January 2015

Halogen bonding leads to a dramatic decrease of the barrier for (inner-sphere) electron transfer and halogen transfer between bromocarbons and iodide anions.
Relationships between dipole moments of diatomic molecules
Authors: Hou Shilin , Bernath Peter F.
Published: January 2015

Accurate dipole moments for heavy polar molecules can be obtained from those of other related molecules.
Energy efficiency in surmounting the central energy barrier: a quantum dynamics study of the OH + CH3 → O + CH4 reaction
Authors: Yan Pengxiu , Meng Fanbin , Wang Yuping , Wang Dunyou
Published: January 2015

A quantum dynamics study of the OH + CH3 with a slightly early barrier shows that vibrational energy is more effective in promoting the reactivity than translational energy, which is just opposite to the Polanyi rules.
Chemisorptive enantioselectivity of chiral epoxides on tartaric-acid modified Pd(111): three-point bonding
Authors: Mahapatra Mausumi , Tysoe Wilfred T.
Published: January 2015

The chemisorption of two chiral molecules, propylene oxide and glycidol, is studied on tartaric-acid modified Pd(111) surfaces by using temperature-programmed desorption to measure adsorbate coverage.
Site reactivity in the free radicals induced damage to leucine residues: a theoretical study
Authors: Medina M. E. , Galano A. , Alvarez-Idaboy J. R.
Published: January 2015

The reactions of leucine with free radicals are kinetically controlled and are faster in hydrophilic than in hydrophobic media.
Palladium nanoparticles supported on graphene as catalysts for the dehydrogenative coupling of hydrosilanes and amines
Authors: Blandez Juan F. , Esteve-Adell Iván , Alvaro Mercedes , García Hermenegildo
Published: January 2015

Palladium nanoparticles (Pd NPs) were supported on undoped and N- or B-doped graphenes (Gs) and these materials have been used as catalysts for the dehydrogenative coupling of hydrosilanes and amines to form silazanes.
Facile one-pot fabrication of a silica gel-supported chiral phase-transfer catalyst—N-(2-cyanobenzyl)-O(9)-allyl-cinchonidinium salt
Authors: Feng Dandan , Xu Jinghan , Wan Jingwei , Xie Bing , Ma Xuebing
Published: January 2015

A novel silica gel-supported cinchona alkaloid-based PTC catalyst was prepared by one-pot synthesis for the first time. Excellent enantioselectivities (72.0–96.9% ee) and 80–96% yields in enantioselective α-alkylation were achieved without significant loss in the catalytic performance for five runs.
Cu–Mo doped zeolite ZSM-5 catalyzed conversion of lignin to alkyl phenols with high selectivity
Authors: Singh Sunit Kumar , Ekhe Jayant D.
Published: January 2015

Challenging issues of lignin conversion processes including char formation, lower degree of depolymerization and lower product yield with no selectivity are worked out in this study.
Electron transfer rate modulation in a compact Re(i) donor–acceptor complex
Authors: Yue Yuankai , Grusenmeyer Tod , Ma Zheng , Zhang Peng , Schmehl Russell H. , Beratan David N. , Rubtsov Igor V.
Published: January 2015

Excitation of the vibrational modes at the bipyridine ligand results in modulation of the electron transfer rate between the electron donating and accepting ligands in a Re(i) complex.
Spin-glass behavior of a hierarchically-organized, hybrid microporous material, based on an extended framework of octanuclear iron-oxo units
Authors: Cao Xin-Yi , Hubbard Jeremiah W. , Guerrero-Medina Jennifer , Hernández-Maldonado Arturo J. , Mathivathanan Logesh , Rinaldi Carlos , Sanakis Yiannis , Raptis Raphael G.
Published: January 2015

An amorphous microporous solid, hierarchically built using paramagnetic octanuclear iron-oxide clusters, becomes a spin-glass below ∼30 K.
Formylated chloro-bridged iridium(iii) dimers as OLED materials: opening up new possibilities
Authors: Wong Michael Y. , Xie Guohua , Tourbillon Clarisse , Sandroni Martina , Cordes David B. , Slawin Alexandra M. Z. , Samuel Ifor D. W. , Zysman-Colman Eli
Published: January 2015

In this study, a series of four formyl-substituted chloro-bridged iridium(iii) dimers were prepared.
Two dimethylphenyl imidazole dicarboxylate-based lanthanide metal–organic frameworks for luminescence sensing of benzaldehyde
Authors: Shi Bingbing , Zhong Yuanhao , Guo Lili , Li Gang
Published: January 2015

Two novel dimethylphenyl imidazole dicarboxylate-based lanthanide(iii)-organic frameworks, [Ln(H2DMPhIDC)3(H3DMPhIDC)]n (Ln = Eu (1), Tb (2); H3DMPhIDC = 2-(3,4-dimethylphenyl)-1H-imidazole-4,5-dicarboxylic acid) have been synthesized under hydrothermal conditions.
Structural, transport and optical properties of (La0.6Pr0.4)0.65Ca0.35MnO3nanocrystals: a wide band-gap magnetic semiconductor
Authors: Kumar Satyam , Dwivedi G. D. , Kumar Shiv , Mathur R. B. , Saxena U. , Ghosh A. K. , Joshi Amish G. , Yang H. D. , Chatterjee Sandip
Published: January 2015

Resistivityvs. temperature and valence band spectra of (La0.6Pr0.4)0.65Ca0.35MnO3nanoparticles have been shown in figures. This figure clearly shows the hybridization of Mn3d(t2g) and O2p states.
A new inorganic–organic hybrid material Al-SBA-15-TPI/H6P2W18O62 catalyzed one-pot, three-component synthesis of 2H-indazolo[2,1-b]phthalazine-triones
Authors: Tayebee R. , Amini M. M. , Pouyamanesh S. , Aliakbari A.
Published: January 2015

Al-SBA-15-TPI/H6P2W18O62 is introduced as an effective catalyst for the one-pot synthesis of indazolo-phthalazine-triones. The catalyst could be easily separated without noticeable reduction in activity.
The O–P–O bridged Mn2(salen)2chains showing coexistence of single chain magnet and metamagnet behaviour
Authors: Wang Ting-Ting , Ren Min , Bao Song-Song , Cai Zhong-Sheng , Liu Bin , Zheng Ze-Hua , Xu Zhong-Li , Zheng Li-Min
Published: January 2015

Three chain compounds in which the Mn2(salen)2dimers are bridged by O–P–O units are reported, two of which display coexistence of SCM behavior and metamagnetism at low temperature.
A shift in emission time profiles of fossil fuel combustion due to energy transitions impacts source receptor matrices for air quality
Authors: Hendriks Carlijn , Kuenen Jeroen , Kranenburg Richard , Scholz Yvonne , Schaap Martijn
Published: January 2015

The impact of a shift in time of air pollutant emissions on ambient concentrations and derived source receptor relations should be included when studying impacts of energy transitions on air quality and climate.
Directing the orientational alignment of anisotropic magnetic nanoparticles using dynamic magnetic fields
Authors: Hoffelner Daniel , Kundt Matthias , Schmidt Annette M. , Kentzinger Emmanuel , Bender Philipp , Disch Sabrina
Published: January 2015

The structure-directing influence of static and dynamic, i.e. rotating, magnetic fields on the orientational alignment of spindle-type hematite particles with a high aspect ratio is investigated. Structural characterization using electron microscopy and small-angle X-ray scattering confirms a nearly collinear particle arrangement with orientation of the main particle axis either parallel or perpendicular to the substrate as directed by the magnetic field geometry. The combination of large structural and magnetocrystalline anisotropies results in significantly different, strongly anisotropic magnetic properties of the assemblies revealed by directional magnetization measurements.
In vitro evaluation and in vivo demonstration of a biomimetic, hemocompatible, microfluidic artificial lung
Authors: Kovach K. M. , LaBarbera M. A. , Moyer M. C. , Cmolik B. L. , van Lunteren E. , Sen Gupta A. , Capadona J. R. , Potkay J. A.
Published: January 2015

We describe the first microfluidic artificial lung featuring a hemocompatible surface coating and a biomimetic blood path and its application in an in vitro and in vivo model.
Micro-elastometry on whole blood clots using actuated surface-attached posts (ASAPs)
Authors: Judith Robert M. , Fisher Jay K. , Spero Richard Chasen , Fiser Briana L. , Turner Adam , Oberhardt Bruce , Taylor R. M. , Falvo Michael R. , Superfine Richard
Published: January 2015

We used magnetically actuatable micro-post arrays to measure blood clot elasticity for blood clotting diagnostics.
A Zn-oxalate helix linked by a water helix: spontaneous chiral resolution of a Zn helical coordination polymer
Authors: Mei Hong-Xin , Zhang Ting , Wang Dan-Feng , Huang Rong-Bin , Zheng Lan-Sun
Published: January 2015

Two enantiomers of a Zn helical coordination polymer have been obtained from spontaneous resolution. In this compound, homochiral Zn-oxalate helices are linked by water helices comprising coordinated and guest water.
cis-2-Aminocyclohex-4-enecarboxylic acid as a new building block of helical foldamers
Authors: Kwon Sunmi , Kang Philjae , Choi Moon-Gun , Choi Soo Hyuk
Published: January 2015

cis-2-Aminocyclohex-4-enecarboxylic acid can promote the α/β-peptide 11/9-helix in solution and in the crystal state.
DNA stabilized silver nanoclusters as the fluorescent probe for studying the structural fluctuations and the solvation dynamics of human telomeric DNA
Authors: Hsu Hung-Chi , Ho Meng-Chieh , Wang Kai-Hung , Hsu Ying-Feng , Chang Chih-Wei
Published: January 2015

Silver nanoclusters can be utilized as a fluorescent probe for studying the structural fluctuation and the solvation dynamics of human telomeric DNA.
Mechanistic insights into EGFR membrane clustering revealed by super-resolution imaging
Authors: Gao Jing , Wang Ye , Cai Mingjun , Pan Yangang , Xu Haijiao , Jiang Junguang , Ji Hongbin , Wang Hongda
Published: January 2015

We investigate the distribution of membrane EGFR by direct stochastic optical reconstruction microscopy (dSTORM). Our results illustrate the clustering distribution pattern of EGFR in polarized cells and uncover the essential role of lipid rafts in EGFR cluster maintenance.
Plasmon enhanced organic devices utilizing highly ordered nanoimprinted gold nanodisks and nitrogen doped graphene
Authors: Mat Teridi Mohd Asri , Sookhakian Mehran , Basirun Wan Jefrey , Zakaria R. , Schneider Fabio Kurt , da Silva Wilson Jose , Kim Jaeyeon , Lee Seung Joo , Kim Hyeong Pil , Mohd Yusoff Abd. Rashid bin , Jang Jin
Published: January 2015

High performance organic devices were successfully demonstrated with the presence of highly ordered nanoimprinted Au nanodisks.
Nanostructure controlled sustained delivery of human growth hormone using injectable, biodegradable, pH/temperature responsive nanobiohybrid hydrogel
Authors: Singh Narendra K. , Nguyen Quang Vinh , Kim Bong Sup , Lee Doo Sung
Published: January 2015

The combination of layered double hydroxide nanoclay particles and pH/temperature-sensitive hydrogel matrix effectively controlled the delivery of human growth hormone.
Incident angle–tuned, broadband, ultrahigh-sensitivity plasmonic antennas prepared from nanoparticles on imprinted mirrors
Authors: Yu Chen-Chieh , Tseng Yi-Chuan , Su Pao-Yun , Lin Keng-Te , Shao Chang-Ching , Chou Sin-Yi , Yen Yu-Ting , Chen Hsuen-Li
Published: January 2015

We have used a direct imprint-in-metal method that is cheap and rapid to prepare incident angle-tuned, broadband, ultrahigh-sensitivity plasmonic antennas from nanoparticles (NPs) and imprinted metal mirrors.
Self-assembled gold coating enhances X-ray imaging of alginate microcapsules
Authors: Qie Fengxiang , Astolfo Alberto , Wickramaratna Malsha , Behe Martin , Evans Margaret D. M. , Hughes Timothy C. , Hao Xiaojuan , Tan Tianwei
Published: January 2015

A simple self-assembled gold nanoparticle coating on alginate microcapsules provides them with enhanced and distinctive contrast enabling positive identification and potential for in vivo tracking during rapid X-ray imaging.
In situ SEM study of lithium intercalation in individual V2O5 nanowires
Authors: Strelcov Evgheni , Cothren Joshua , Leonard Donovan , Borisevich Albina Y. , Kolmakov Andrei
Published: January 2015

Progress in rational engineering of Li-ion batteries requires better understanding of the electrochemical processes and accompanying transformations in the electrode materials on multiple length scales.
N-doped graphene nanoribbons as efficient metal-free counter electrodes for disulfide/thiolate redox mediated DSSCs
Authors: Xue Yuhua , Baek Janice M. , Chen Hao , Qu Jia , Dai Liming
Published: January 2015

Nitrogen-doped graphene nanoribbons (N-GNRs) were prepared by thermal treatment of the as-zipped graphene oxide nanoribbon in NH3 gas. The resultant N-GNRs were found to act as efficient metal-free counter electrodes in DSSCs.
Electrochromic and liquid crystalline polycarbonates based on telechelic oligothiophenes
Authors: Stalder R. , Mavrinskiy A. , Grand C. , Imaram W. , Angerhofer A. , Pisula W. , Müllen K. , Reynolds J. R.
Published: January 2015

The triphosgene carbonate synthesis is adapted towards an alternating main-chain rod/coil polycarbonate based on a telechelic sexithiophene oligomer, yielding an electrochromic material displaying morphological behaviour typical of a liquid-crystalline polymer.
Hybrid caged nanostructure ablative composites of octaphenyl-POSS/RF as heat shields
Authors: Gupta Rohit , Kandasubramanian Balasubramanian
Published: January 2015

Synthesis of novel hybrid three dimensional thermosetting resin of resorcinol formaldehyde and OP-POSS for thermal protection.
Double dye cubic-sensitized solar cell based on Förster resonant energy transfer
Authors: Li Wenxia , Zhang Jingbo , Cao Yingyu , Lin Yuan
Published: January 2015

To extend the spectral response range of dye-sensitized solar cells through Förster resonant energy transfer, eosin Y and rhodamine B were chosen as an donor and a acceptor to cubic-sensitize nanocrystalline ZnO thin film.
Hafnium catalysts for direct alkene epoxidation using molecular oxygen as oxidant
Authors: Yang Bo , Manz Thomas A.
Published: January 2015

Direct alkene epoxidation catalytic cycles were computed for hafnium-based catalysts containing bis(dinitrone) and bis(imine nitrone) ligation using molecular oxygen as oxidant without co-reductant.
A simple low-cost method to enhance luminescence and fluorescence signals in PDMS-based microfluidic devices
Authors: Eyer Klaus , Root Katharina , Robinson Tom , Dittrich Petra S.
Published: January 2015

The addition of titanium dioxide particles to PDMS is a simple low-cost method to enhance fluorescence and luminescence signals in microfluidic devices.
Synthesis, characterization, crystal structure, cytotoxicity, apoptosis and cell cycle arrest of ruthenium(ii) complex [Ru(bpy)2(adpa)](PF6)2 (bpy = 2,2′-bipyridine, adpa = 4-(4-aminophenyl)diazenyl-N-(pyridin-2-ylmethylene)aniline)
Authors: Zhang Yan , Hu Peng-Chao , Cai Ping , Yang Fang , Cheng Gong-Zhen
Published: January 2015

A new ruthenium complex (Ru-adpa) characterized by single X-ray diffraction exhibits excellent cytotoxicity against AGS cells.
Direct determination of halogenated POPs in aqueous samples by in-tube SPME, focalization and GC-ECD analysis
Authors: Russo M. V. , Avino P. , Veschetti E.
Published: January 2015

A rapid analytical screening method allowing simultaneous analysis of few halogenated persistent organic pollutants (POPs) in water samples at ultra-trace levels was developed.
Effect of monomer sequence of poly(histidine/lysine) catiomers on gene packing capacity and delivery efficiency
Authors: Zhou Jiashan , Li Yan , Dong Haiqing , Yuan Hua , Ren Tianbin , Li Yongyong
Published: January 2015

This work presents a novel method to synthesize reducible polycations with specific monomer sequence, and provides new insight on how a monomer sequence of the polymeric catiomer will affect its gene packing capacity and delivery efficiency.
Pseudopeptide Foldamers designed for photoinduced intramolecular electron transfer
Authors: Milli Lorenzo , Marchi Enrico , Castellucci Nicola , Indelli Maria Teresa , Venturi Margherita , Ceroni Paola , Tomasini Claudia
Published: January 2015

Hybrid foldamers equipped with a donor and an acceptor unit exhibit unexpected conformations affecting the photoinduced electron transfer ability. The donor quenching efficiency depends both on the nature and on the secondary structure of the linker.
Bio-based poly(lactide)/ethylene-co-vinyl acetate thermoplastic vulcanizates by dynamic crosslinking: structure vs. property
Authors: Ma Piming , Xu Pengwu , Liu Wangcheng , Zhai Yinghao , Dong Weifu , Zhang Yong , Chen Mingqing
Published: January 2015

The structure–property relationships of PLA/EVA-based thermoplastic vulcanizates have been investigated for the first time.
Surfactant-free hydrothermal fabrication of monoclinic BiVO4 photocatalyst with oxygen vacancies by copper doping
Authors: Li Dezhi , Wang Wenzhong , Jiang Dong , Zheng Yali , Li Xiaoman
Published: January 2015

Photocatalytic property and reaction mechanism of BiVO4 with oxygen vacancies by copper doping was studied in this paper.
Selective CO2 adsorption in a porphyrin polymer with benzimidazole linkages
Authors: Neti Venkata S. Pavan K. , Wang Jun , Deng Shuguang , Echegoyen Luis
Published: January 2015

A new nanoporous porphyrin-based benzimidazole linked polymer, PBILP, was synthesized.
Preparation of porous carbon microspheres anode materials from fine needle coke powders for lithium-ion batteries
Authors: Ren Wenfeng , Zhang Zailei , Wang Yanhong , Kan Guangwei , Tan Qiangqiang , Zhong Ziyi , Su Fabing
Published: January 2015

Fine carbon particles are granulated to porous carbon microspheres which show improved electrochemical properties as anode materials for lithium ion batteries.
Controllable microdroplet splitting via additional lateral flow and its application in rapid synthesis of multi-scale microspheres
Authors: Zhou Bingpu , Wang Cong , Xiao Xiao , Hui Yu Sanna , Cao Yulin , Wen Weijia
Published: January 2015

We demonstrated that controllable microdroplet splitting could be obtained via simply applying a lateral flow at a bifurcation.
Rh(iii)-catalyzed C–H olefination of N-pentafluoroaryl benzamides using air as the sole oxidant
Authors: Lu Yi , Wang Huai-Wei , Spangler Jillian E. , Chen Kai , Cui Pei-Pei , Zhao Yue , Sun Wei-Yin , Yu Jin-Quan
Published: January 2015

Rhodium(iii)-catalyzed C–H olefination reaction using air as the sole oxidant.
Synthesis and optical properties of photovoltaic materials based on the ambipolar dithienonaphthothiadiazole unit
Authors: Nakanishi Tatsuaki , Shirai Yasuhiro , Han Liyuan
Published: January 2015

Dithieno[3′2′:5,6;2′′,3′′:7,8]naphtho[2,3-c][1,2,5]thiadiazole (DTNT) was designed to control the band energies of the polymers for photovoltaic materials.
Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance
Authors: Dong Hua , Wu Zhaoxin , El-Shafei Ahmed , Xia Bin , Xi Jun , Ning Shuya , Jiao Bo , Hou Xun
Published: January 2015

In this article, Ag-encapsulated Au nanorods (Au@Ag NRs) are prepared and introduced into dye-sensitized solar cells (DSSCs).
Self-assembly synthesis and electrochemical performance of Li1.5Mn0.75Ni0.15Co0.10O2+δ microspheres with multilayer shells
Authors: Yu Ruizhi , Wang Xianyou , Wang Di , Ge Long , Shu Hongbo , Yang Xiukang
Published: January 2015

Li1.5Mn0.75Ni0.15Co0.10O2+δ microspheres with hierarchical multilayer concentric circle shells as a cathode material for lithium-ion batteries.
Solution processed organic solar cells based on A–D–D′–D–A small molecule with benzo[1,2-b:4,5-b′]dithiophene donor (D′) unit, cyclopentadithiophene donor (D) and ethylrhodanine acceptor unit having 6% light to energy conversion efficiency
Authors: Kumar Challuri Vijay , Cabau Lydia , Koukaras Emmanuel N. , Viterisi Aurelien , Sharma Ganesh D. , Palomares Emilio
Published: January 2015

Devices based on BDT(CDTRH)2:PC71BM processed from CF and DIO (3% v)/CF exhibit PCE of 4.58% and 6.07%.
On the electrochemical origin of the enhanced charge acceptance of the lead–carbon electrode
Authors: Zhang Wenli , Lin Haibo , Lu Haiyan , Liu Dechen , Yin Jian , Lin Zheqi
Published: January 2015

Electrochemical origins of the enhanced charge acceptance of lead–carbon electrodes were investigated by various electrochemical methods.
Highly efficient sulfonated-polystyrene–Cu(II)@Cu3(BTC)2 core–shell microsphere catalysts for base-free aerobic oxidation of alcohols
Authors: Zhang Xiaowei , Dong Wenjun , Luan Yi , Yang Mu , Tan Li , Guo Yangguang , Gao Hongyi , Tang Yinhai , Dang Rui , Li Jie , Wang Ge
Published: January 2015

A novel core–shell SPS–Cu(II)@Cu3(BTC)2 catalyst was developed for the aerobic oxidation of alcohols by molecular oxygen under base-free conditions.
Investigation on regeneration kinetics at perovskite/oxide interface with scanning electrochemical microscopy
Authors: Alemu Getachew , Li Junpeng , Cui Jin , Xu Xiaobao , Zhang Bingyan , Cao Kun , Shen Yan , Cheng Yibing , Wang Mingkui
Published: January 2015

Scanning electrochemical microscopy measurements show that the regeneration and absorption cross section of CH3NH3PbI3 are higher than conventional sensitizers.
Branched hierarchical photoanode of anatase TiO2 nanotubes on rutile TiO2 nanorod arrays for efficient quantum dot-sensitized solar cells
Authors: Liu Bingkun , Sun Yanjun , Wang Xuesong , Zhang Lijing , Wang Dejun , Fu Zewen , Lin Yanhong , Xie Tengfeng
Published: January 2015

The photoanode based on hierarchical TiO2 nanorod arrays exhibits a maximal power conversion efficiency of 1.04%, which is 2.7 times higher than that of a bare TiO2 nanorod photoanode.
Benzo[1,2-b:4,5-b′]dithiophene (BDT)-based small molecules for solution processed organic solar cells
Authors: Li Miaomiao , Ni Wang , Wan Xiangjian , Zhang Qian , Kan Bin , Chen Yongsheng
Published: January 2015

Small molecules containing BDT units for solution processed organic solar cells have been reviewed.
A free-standing carbon nanofiber interlayer for high-performance lithium–sulfur batteries
Authors: Singhal Richa , Chung Sheng-Heng , Manthiram Arumugam , Kalra Vibha
Published: January 2015

Free-standing porous carbon nanofiber interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity and cycle life.
The effect of strain on the electrical conductance of p-type nanocrystalline silicon carbide thin films
Authors: Phan Hoang-Phuong , Dao Dzung Viet , Wang Li , Dinh Toan , Nguyen Nam-Trung , Qamar Afzaal , Tanner Philip , Dimitrijev Sima , Zhu Yong
Published: January 2015

A significant piezoresistive effect in p-type nanocrystalline SiC with a gauge factor of 14.5 was reported. This result indicates that p-type nanocrystalline SiC is a good candidate for MEMS sensors used in harsh environments and bio applications.
TRPM2-mediated intracellular Zn2+ release triggers pancreatic β-cell death
Authors: Manna Paul T. , Munsey Tim S. , Abuarab Nada , Li Fangfang , Asipu Aruna , Howell Gareth , Sedo Alicia , Yang Wei , Naylor Jacqui , Beech David J. , Jiang Lin-Hua , Sivaprasadarao Asipu
Published: January 2015

Activation of transient receptor potential (melastatin) 2 (TRPM2) channels during oxidative stress promotes pancreatic β-cell death, resulting in hyperglycaemia. Cell death is caused by TRPM2-mediated Ca2+-induced intracellular Zn2+ release, but not by Ca2+ alone.
Myc-interacting zinc-finger protein 1 positively regulates Wnt signalling by protecting Dishevelled from Dapper1-mediated degradation
Authors: Huang Yongsheng , Wang Peng , Chen Hua , Ding Yi , Chen Ye-Guang
Published: January 2015

Our results revealed that Myc-interacting zinc-finger protein 1 (MIZ1) enhances Wnt signalling by protecting Dishevelled (Dvl) from Dapper1 (Dpr1)-mediated degradation and promotes cell proliferation.
Activated regulatory T-cells attenuate myocardial ischaemia/reperfusion injury through a CD39-dependent mechanism
Authors: Xia Ni , Jiao Jiao , Tang Ting-Ting , Lv Bing-Jie , Lu Yu-Zhi , Wang Ke-Jing , Zhu Zheng-Feng , Mao Xiao-Bo , Nie Shao-Fang , Wang Qing , Tu Xin , Xiao Hong , Liao Yu-Hua , Shi Guo-Ping , Cheng Xiang
Published: January 2015

Regulatory T lymphocytes (Tregs) are regarded as key immunomodulators in immune-mediated disorders. Our data validated a protective role of Tregs in myocardial ischemia reperfusion injury (MIRI). Moreover, activated Tregs ameliorated MIRI via a CD39-dependent mechanism, representing a putative therapeutic strategy.
4‐weighted fractional Fourier transform over doubly selective channels and optimal order selecting algorithm
Authors: Hui Yongtao , Li Bingbing , Tong Zhao
Published: January 2015

An optimal order selecting scheme for 4‐weighted fractional Fourier transform (4‐WFRFT) over doubly selective channels is developed. First, the expression for carrier‐to‐interference ratio (CIR) is deduced and then through maximising the CIR the optimal order factor is obtained. Through selecting the optimal order factor of 4‐WFRFT, this system can match the doubly selective channel characteristics through switching between orthogonal frequency division multiplexing (OFDM) and single carrier (SC) systems according to obtained channel state information. The simulation results show that the optimal order 4‐WFRFT scheme can improve the performance over doubly selective channels with respect to the traditional SC or OFDM.
Query decomposition method for multi‐keyword search in P2P systems
Authors: Chotikakamthorn N. , Jitnupong T.
Published: January 2015

A problem of multi‐keyword search in a structured peer‐to‐peer (P2P) distributed computing system is considered. Methods have been developed to employ term‐set indexing in a P2P system. Such an approach is an attempt to avoid excessive communication cost incurred by intersection operations in a single‐term indexing method. In addition to limiting the maximum term‐set size, index pruning was proposed to avoid exponential growth of the term‐set index size. However, to obtain a global search result, query decomposition and query result intersection operations are still needed when the number of query terms exceeds the maximum term‐set size. With index pruning employed, how a multi‐term query is decomposed and affects the quality of retrieval results in terms of recall and precision is shown. A near‐optimal query decomposition method is proposed to alleviate such a problem. Results from the simulation demonstrate the improvement gained by the proposed method.
Improvement of differential modal gain in few‐mode fibre amplifier by employing ring‐core erbium‐doped fibre
Authors: Ono H. , Hosokawa T. , Ichii K. , Matsuo S. , Yamada M.
Published: January 2015

The differential modal gain (DMG) in a few‐mode erbium‐doped fibre amplifier (FM‐EDFA) is successfully improved by employing a ring‐core FM erbium‐doped fibre (RC‐EDF). The DMGs between LP01 and LP11 mode signals in the FM‐EDFA with the RC‐EDF are 1.8 and 1.6 dB for LP01 and LP11 mode pumping, respectively, whereas those in a FM‐EDFA with a conventional step‐index FM EDF are 9.2 and 6.1 dB, indicating 7.4 and 4.5 dB DMG improvement for LP01 and LP11 mode pumping, respectively.
Switching of whispering gallery mode in hexagonal GaN microdisk by change in condition of reflection surface
Authors: Kouno T. , Sakai M. , Kishino K. , Hara K.
Published: January 2015

Optical microresonant mode switching in a hexagonal GaN microdisk, which acts as a whispering gallery mode (WGM) and quasi‐WGM (QWGM), has been demonstrated by a change in the condition of the reflection surface under a room temperature photoluminescence (RT‐PL) measurement. It has been confirmed that only the WGM in the microdisk, which uses all side walls of a microdisk as the reflection surface, was strongly affected by attaching another microdisk on a side wall. The result indicates that the WGM can be controlled independently by external factors.
High-energy-density electron jet generation from an opening gold cone filled with near-critical-density plasma
Authors: Yu T. P. , Yu W. , Shao F. Q. , Luan S. X. , Zou D. B. , Ge Z. Y. , Zhang G. B. , Wang J. W. , Wang W. Q. , Li X. H. , Liu J. X. , Ouyang J. M. , Wong A. Y.
Published: January 2015

By using two-dimensional particle-in-cell simulations, we propose a scheme for strong coupling of a petawatt laser with an opening gold cone filled with near-critical-density plasmas. When relevant parameters are properly chosen, most laser energy can be fully deposited inside the cone with only 10% leaving the tip opening. Due to the asymmetric ponderomotive acceleration by the strongly decayed laser pulse, high-energy-density electrons with net laser energy gain are accumulated inside the cone, which then stream out of the tip opening continuously, like a jet. The jet electrons are fully relativistic, with speeds around 0.98−0.998 c and densities at 1020/cm3 level. The jet can keep for a long time over 200 fs, which may have diverse applications in practice.