bluuebunny/crossref_metadata_2025 huggingface dataset:
Genome-wide association study of corticobasal degeneration identifies risk variants shared with progressive supranuclear palsy
Authors: Kouri Naomi , Ross Owen A. , Dombroski Beth , Younkin Curtis S. , Serie Daniel J. , Soto-Ortolaza Alexandra , Baker Matthew , Finch Ni Cole A. , Yoon Hyejin , Kim Jungsu , Fujioka Shinsuke , McLean Catriona A. , Ghetti Bernardino , Spina Salvatore , Cantwell Laura B. , Farlow Martin R. , Grafman Jordan , Huey Edward D. , Ryung Han Mi , Beecher Sherry , Geller Evan T. , Kretzschmar Hans A. , Roeber Sigrun , Gearing Marla , Juncos Jorge L. , Vonsattel Jean Paul G. , Van Deerlin Vivianna M. , Grossman Murray , Hurtig Howard I. , Gross Rachel G. , Arnold Steven E. , Trojanowski John Q. , Lee Virginia M. , Wenning Gregor K. , White Charles L. , Höglinger Günter U. , Müller Ulrich , Devlin Bernie , Golbe Lawrence I. , Crook Julia , Parisi Joseph E. , Boeve Bradley F. , Josephs Keith A. , Wszolek Zbigniew K. , Uitti Ryan J. , Graff-Radford Neill R. , Litvan Irene , Younkin Steven G. , Wang Li-San , Ertekin-Taner Nilüfer , Rademakers Rosa , Hakonarsen Hakon , Schellenberg Gerard D. , Dickson Dennis W.
Published: June 2015

Corticobasal degeneration (CBD) is a neurodegenerative disorder affecting movement and cognition, definitively diagnosed only at autopsy. Here, we conduct a genome-wide association study (GWAS) in CBD cases (n=152) and 3,311 controls, and 67 CBD cases and 439 controls in a replication stage. Associations with meta-analysis were 17q21 at MAPT (P=1.42 × 10−12), 8p12 at lnc-KIF13B-1, a long non-coding RNA (rs643472; P=3.41 × 10−8), and 2p22 at SOS1 (rs963731; P=1.76 × 10−7). Testing for association of CBD with top progressive supranuclear palsy (PSP) GWAS single-nucleotide polymorphisms (SNPs) identified associations at MOBP (3p22; rs1768208; P=2.07 × 10−7) and MAPT H1c (17q21; rs242557; P=7.91 × 10−6). We previously reported SNP/transcript level associations with rs8070723/MAPT, rs242557/MAPT, and rs1768208/MOBP and herein identified association with rs963731/SOS1. We identify new CBD susceptibility loci and show that CBD and PSP share a genetic risk factor other than MAPT at 3p22 MOBP (myelin-associated oligodendrocyte basic protein).
Crystallization of DNA-coated colloids
Authors: Wang Yu , Wang Yufeng , Zheng Xiaolong , Ducrot Étienne , Yodh Jeremy S. , Weck Marcus , Pine David J.
Published: June 2015

DNA-coated colloids hold great promise for self-assembly of programmed heterogeneous microstructures, provided they not only bind when cooled below their melting temperature, but also rearrange so that aggregated particles can anneal into the structure that minimizes the free energy. Unfortunately, DNA-coated colloids generally collide and stick forming kinetically arrested random aggregates when the thickness of the DNA coating is much smaller than the particles. Here we report DNA-coated colloids that can rearrange and anneal, thus enabling the growth of large colloidal crystals from a wide range of micrometre-sized DNA-coated colloids for the first time. The kinetics of aggregation, crystallization and defect formation are followed in real time. The crystallization rate exhibits the familiar maximum for intermediate temperature quenches observed in metallic alloys, but over a temperature range smaller by two orders of magnitude, owing to the highly temperature-sensitive diffusion between aggregated DNA-coated colloids.
Polymerase Θ is a key driver of genome evolution and of CRISPR/Cas9-mediated mutagenesis
Authors: van Schendel Robin , Roerink Sophie F. , Portegijs Vincent , van den Heuvel Sander , Tijsterman Marcel
Published: June 2015

Cells are protected from toxic DNA double-stranded breaks (DSBs) by a number of DNA repair mechanisms, including some that are intrinsically error prone, thus resulting in mutations. To what extent these mechanisms contribute to evolutionary diversification remains unknown. Here, we demonstrate that the A-family polymerase theta (POLQ) is a major driver of inheritable genomic alterations in Caenorhabditis elegans. Unlike somatic cells, which use non-homologous end joining (NHEJ) to repair DNA transposon-induced DSBs, germ cells use polymerase theta-mediated end joining, a conceptually simple repair mechanism requiring only one nucleotide as a template for repair. Also CRISPR/Cas9-induced genomic changes are exclusively generated through polymerase theta-mediated end joining, refuting a previously assumed requirement for NHEJ in their formation. Finally, through whole-genome sequencing of propagated populations, we show that only POLQ-proficient animals accumulate genomic scars that are abundantly present in genomes of wild C. elegans, pointing towards POLQ as a major driver of genome diversification.
Evidence for methane in Martian meteorites
Authors: Blamey Nigel J. F. , Parnell John , McMahon Sean , Mark Darren F. , Tomkinson Tim , Lee Martin , Shivak Jared , Izawa Matthew R. M. , Banerjee Neil R. , Flemming Roberta L.
Published: June 2015

The putative occurrence of methane in the Martian atmosphere has had a major influence on the exploration of Mars, especially by the implication of active biology. The occurrence has not been borne out by measurements of atmosphere by the MSL rover Curiosity but, as on Earth, methane on Mars is most likely in the subsurface of the crust. Serpentinization of olivine-bearing rocks, to yield hydrogen that may further react with carbon-bearing species, has been widely invoked as a source of methane on Mars, but this possibility has not hitherto been tested. Here we show that some Martian meteorites, representing basic igneous rocks, liberate a methane-rich volatile component on crushing. The occurrence of methane in Martian rock samples adds strong weight to models whereby any life on Mars is/was likely to be resident in a subsurface habitat, where methane could be a source of energy and carbon for microbial activity.
Aspartate Decarboxylase is Required for a Normal Pupa Pigmentation Pattern in the Silkworm, Bombyx mori
Authors: Dai Fangyin , Qiao Liang , Cao Cun , Liu Xiaofan , Tong Xiaoling , He Songzhen , Hu Hai , Zhang Li , Wu Songyuan , Tan Duan , Xiang Zhonghuai , Lu Cheng
Published: June 2015

The pigmentation pattern of Lepidoptera varies greatly in different development stages. To date, the effects of key genes in the melanin metabolism pathway on larval and adult body color are distinct, yet the effects on pupal pigmentation remains unclear. In the silkworm, Bombyx mori, the black pupa (bp) mutant is only specifically melanized at the pupal stage. Using positional cloning, we found that a mutation in the Aspartate decarboxylase gene (BmADC) is causative in the bp mutant. In the bp mutant, a SINE-like transposon with a length of 493 bp was detected ~2.2 kb upstream of the transcriptional start site of BmADC. This insertion causes a sharp reduction in BmADC transcript levels in bp mutants, leading to deficiency of β-alanine and N-β-alanyl dopamine (NBAD), but accumulation of dopamine. Following injection of β-alanine into bp mutants, the color pattern was reverted that of the wild-type silkworms. Additionally, melanic pupae resulting from knock-down of BmADC in the wild-type strain were obtained. These findings show that BmADC plays a crucial role in melanin metabolism and in the pigmentation pattern of the silkworm pupal stage. Finally, this study contributes to a better understanding of pupa pigmentation patterns in Lepidoptera.
Development of a ferromagnetic component in the superconducting state of Fe-excess Fe1.12Te1-xSex by electronic charge redistribution
Authors: Li Wen-Hsien , Karna Sunil K. , Hsu Han , Li Chi-Yen , Lee Chi-Hung , Sankar Raman , Cheng Chou Fang
Published: June 2015

The general picture established so far for the links between superconductivity and magnetic ordering in iron chalcogenide Fe1+y(Te1-xSex) is that the substitution of Se for Te directly drives the system from the antiferromagnetic end into the superconducting regime. Here, we report on the observation of a ferromagnetic component that developed together with the superconducting transition in Fe-excess Fe1.12Te1-xSex crystals using neutron and x-ray diffractions, resistivity, magnetic susceptibility and magnetization measurements. The superconducting transition is accompanied by a negative thermal expansion of the crystalline unit cell and an electronic charge redistribution, where a small portion of the electronic charge flows from around the Fe sites toward the Te/Se sites. First-principles calculations show consistent results, revealing that the excess Fe ions play a more significant role in affecting the magnetic property in the superconducting state than in the normal state and the occurrence of an electronic charge redistribution through the superconducting transition.
Dispersionless Manipulation of Reflected Acoustic Wavefront by Subwavelength Corrugated Surface
Authors: Zhu Yi-Fan , Zou Xin-Ye , Li Rui-Qi , Jiang Xue , Tu Juan , Liang Bin , Cheng Jian-Chun
Published: June 2015

Free controls of optic/acoustic waves for bending, focusing or steering the energy of wavefronts are highly desirable in many practical scenarios. However, the dispersive nature of the existing metamaterials/metasurfaces for wavefront manipulation necessarily results in limited bandwidth. Here, we propose the concept of dispersionless wavefront manipulation and report a theoretical, numerical and experimental work on the design of a reflective surface capable of controlling the acoustic wavefront arbitrarily without bandwidth limitation. Analytical analysis predicts the possibility to completely eliminate the frequency dependence with a specific gradient surface which can be implemented by designing a subwavelength corrugated surface. Experimental and numerical results, well consistent with the theoretical predictions, have validated the proposed scheme by demonstrating a distinct phenomenon of extraordinary acoustic reflection within an ultra-broad band. For acquiring a deeper insight into the underlying physics, a simple physical model is developed which helps to interpret this extraordinary phenomenon and predict the upper cutoff frequency precisely. Generations of planar focusing and non-diffractive beam have also been exemplified. With the dispersionless wave-steering capability and deep discrete resolution, our designed structure may open new avenue to fully steer classical waves and offer design possibilities for broadband optical/acoustical devices.
The evolution and devolution of cognitive control: The costs of deliberation in a competitive world
Authors: Tomlin Damon , Rand David G. , Ludvig Elliot A. , Cohen Jonathan D.
Published: June 2015

Dual-system theories of human cognition, under which fast automatic processes can complement or compete with slower deliberative processes, have not typically been incorporated into larger scale population models used in evolutionary biology, macroeconomics, or sociology. However, doing so may reveal important phenomena at the population level. Here, we introduce a novel model of the evolution of dual-system agents using a resource-consumption paradigm. By simulating agents with the capacity for both automatic and controlled processing, we illustrate how controlled processing may not always be selected over rigid, but rapid, automatic processing. Furthermore, even when controlled processing is advantageous, frequency-dependent effects may exist whereby the spread of control within the population undermines this advantage. As a result, the level of controlled processing in the population can oscillate persistently, or even go extinct in the long run. Our model illustrates how dual-system psychology can be incorporated into population-level evolutionary models and how such a framework can be used to examine the dynamics of interaction between automatic and controlled processing that transpire over an evolutionary time scale.
First Principles Prediction of Topological Phases in Thin Films of Pyrochlore Iridates
Authors: Hu Xiang , Zhong Zhicheng , Fiete Gregory A.
Published: June 2015

While the theoretical and experimental study of topological phases of matter has experienced rapid growth over the last few years, there remain a relatively small number of material classes that have been experimentally shown to host these phases. Most of these materials contain bismuth and none so far are oxides. In this work we make materials-specific predictions for topological phases using density functional theory combined with Hartree-Fock theory that includes the full orbital structure of the relevant iridium d-orbitals and the strong but finite spin-orbit coupling strength. We find Y2Ir2O7 bilayer and trilayer films grown along the [111] direction can support topological metallic phases with a direct gap of up to 0.05 eV, which could potentially bring transition metal oxides to the fore as a new class of topological materials with potential applications in oxide electronics.
Regulation of gamma-secretase activating protein by the 5Lipoxygenase: in vitro and in vivo evidence
Authors: Chu Jin , Li Jian-Guo , Hoffman Nicholas E. , Stough Alexandra M. , Madesh Muniswamy , Praticò Domenico
Published: June 2015

The formation of Aβ is directly controlled by the γ-secretase complex and its activator, γ-secretase activating protein (GSAP). GSAP derives from a C-terminal fragment of a larger precursor protein via a caspase-3 mediated cleavage. However, the mechanism regulating this process remains unknown. Here we provide in vitro experimental evidence that 5-Lipoxygenase (5LO) is as an endogenous regulator for GSAP formation, but not for other known γ-secretase modulators, by directly and specifically activating caspase-3. These results were confirmed in vivo by using transgenic mouse models of Alzheimer’s disease in which 5LO level and activity were modulated genetically or pharmacologically. Taken together, our findings demonstrate that GSAP cleavage via caspase-3 is regulated and depend upon the availability of 5LO further establishing this protein as an attractive and viable therapeutic target for Alzheimer’s disease.
Substrate-anchored and degradation-sensitive anti-inflammatory coatings for implant materials
Authors: Wu Duo , Chen Xingyu , Chen Tianchan , Ding Chunmei , Wu Wei , Li Jianshu
Published: June 2015

Implant materials need to be highly biocompatible to avoid inflammation in clinical practice. Although biodegradable polymeric implants can eliminate the need for a second surgical intervention to remove the implant materials, they may produce acidic degradation products in vivo and cause non-bacterial inflammation. Here we show the strategy of “substrate-anchored and degradation-sensitive coatings” for biodegradable implants. Using poly(lactic acid)/hydroxyapatite as an implant material model, we constructed a layer-by-layer coating using pH-sensitive star polymers and dendrimers loaded with an anti-inflammatory drug, which was immobilised through a hydroxyapatite-anchored layer. The multifunctional coating can effectively suppress the local inflammation caused by the degradation of implant materials for at least 8 weeks in vivo. Moreover, the substrate-anchored coating is able to modulate the degradation of the substrate in a more homogeneous manner. The “substrate-anchored and degradation-sensitive coating” strategy therefore exhibits potential for the design of various self-anti-inflammatory biodegradable implant materials.
Exploring the open-circuit voltage of organic solar cells under low temperature
Authors: Qi Boyuan , Zhou Qing , Wang Jizheng
Published: June 2015

Open-circuit voltage (VOC) in organic solar cells (OSCs) is currently still not well-understood. A generally acceptable view is that VOC is mainly determined by the energy level offset between donor and acceptor materials. Recently in ternary blend OSCs, VOC is found to be dependent on the blend composition. But contrary to expectation, this dependence is not a simple linear relationship, which adds complications to understanding on VOC. Here, in order to figure out the origin of VOC, we performed a series of experiments on both binary and ternary blend OSCs in a wide temperature range from 15 K to 300 K. It is observed that the devices behave like Schottky barrier (SB) diode. By fitting the experimental results with SB diode model, the detailed device parameters of ternary blend OSCs are extracted and it is found that VOC is determined by the energetics of organic molecules and metal at the cathode interface and the inhomogeneity of the SB also play a great role in the origin of VOC at low temperatures. This work not only paves the way to deep understanding on the origin of VOC, but also opens a door to further exploring the general working principle of OSCs.
Radiation quality-dependence of bystander effect in unirradiated fibroblasts is associated with TGF-β1-Smad2 pathway and miR-21 in irradiated keratinocytes
Authors: Yin Xiaoming , Tian Wenqian , Wang Longxiao , Wang Jingdong , Zhang Shuyu , Cao Jianping , Yang Hongying
Published: June 2015

Traditional radiation biology states that radiation causes damage only in cells traversed by ionizing radiation. But radiation-induced bystander effect (RIBE), which refers to the biological responses in unirradiated cells when the neighboring cells are exposed to radiation, challenged this old dogma and has become a new paradigm of this field. By nature, RIBEs are the consequences of intercellular communication between irradiated and unirradiated cells. However, there are still some important questions remain unanswered such as whether RIBE is dependent on radiation quality, what are the determining factors if so, etc. Using a transwell co-culture system, we found that HaCaT keratinocytes irradiated with α-particles but not X-rays could induce bystander micronucleus formation in unirradiated WS1 fibroblasts after co-culture. More importantly, the activation of TGF-β1-Smad2 pathway and the consistent decrease of miR-21 level in α-irradiated HaCaT cells were essential to the micronucleus induction in bystander WS1 cells. On the other hand, X-irradiation did not induce bystander effect in unirradiated WS1 cells, accompanied by lack of Smad2 activation and consistent decrease of miR-21 in X-irradiated HaCaT cells. Taken together, these results suggest that the radiation quality-dependence of bystander effect may be associated with the TGF-β1-Smad2 pathway and miR-21 in irradiated cells.
An integrated database of wood-formation related genes in plants
Authors: Xu Ting , Ma Tao , Hu Quanjun , Liu Jianquan
Published: June 2015

Wood, which consists mainly of plant cell walls, is an extremely important resource in daily lives. Genes whose products participate in the processes of cell wall and wood formation are therefore major subjects of plant science research. The Wood-Formation Related Genes database (WFRGdb, http://me.lzu.edu.cn/woodformation/) serves as a data resource center for genes involved in wood formation. To create this database, we collected plant genome data published in other online databases and predicted all cell wall and wood formation related genes using BLAST and HMMER. To date, 47 gene families and 33 transcription factors from 57 genomes (28 herbaceous, 22 woody and 7 non-vascular plants) have been covered and more than 122,000 genes have been checked and recorded. To provide easy access to these data, we have developed several search methods, which make it easy to download targeted genes or groups of genes free of charge in FASTA format. Sequence and phylogenetic analyses are also available online. WFRGdb brings together cell wall and wood formation related genes from all available plant genomes and provides an integrative platform for gene inquiry, downloading and analysis. This database will therefore be extremely useful for those who focuses on cell wall and wood research.
A pathway of nanocrystallite fabrication by photo-assisted growth in pure water
Authors: Jeem Melbert , bin Julaihi Muhammad Rafiq Mirza , Ishioka Junya , Yatsu Shigeo , Okamoto Kazumasa , Shibayama Tamaki , Iwasaki Tomio , Kato Takahiko , Watanabe Seiichi
Published: June 2015

We report a new production pathway for a variety of metal oxide nanocrystallites via submerged illumination in water: submerged photosynthesis of crystallites (SPSC). Similar to the growth of green plants by photosynthesis, nanocrystallites shaped as nanoflowers and nanorods are hereby shown to grow at the protruded surfaces via illumination in pure, neutral water. The process is photocatalytic, accompanied with hydroxyl radical generation via water splitting; hydrogen gas is generated in some cases, which indicates potential for application in green technologies. Together with the aid of ab initio calculation, it turns out that the nanobumped surface, as well as aqueous ambience and illumination are essential for the SPSC method. Therefore, SPSC is a surfactant-free, low-temperature technique for metal oxide nanocrystallites fabrication.
Mitochondria-focused gene expression profile reveals common pathways and CPT1B dysregulation in both rodent stress model and human subjects with PTSD
Authors: Zhang L , Li H , Hu X , Benedek D M , Fullerton C S , Forsten R D , Naifeh J A , Li X , Wu H , Benevides K N , Le T , Smerin S , Russell D W , Ursano R J
Published: June 2015

Posttraumatic stress disorder (PTSD), a trauma-related mental disorder, is associated with mitochondrial dysfunction in the brain. However, the biologic approach to identifying the mitochondria-focused genes underlying the pathogenesis of PTSD is still in its infancy. Previous research, using a human mitochondria-focused cDNA microarray (hMitChip3) found dysregulated mitochondria-focused genes present in postmortem brains of PTSD patients, indicating that those genes might be PTSD-related biomarkers. To further test this idea, this research examines profiles of mitochondria-focused gene expression in the stressed-rodent model (inescapable tail shock in rats), which shows characteristics of PTSD-like behaviors and also in the blood of subjects with PTSD. This study found that 34 mitochondria-focused genes being upregulated in stressed-rat amygdala. Ten common pathways, including fatty acid metabolism and peroxisome proliferator-activated receptors (PPAR) pathways were dysregulated in the amygdala of the stressed rats. Carnitine palmitoyltransferase 1B (CPT1B), an enzyme in the fatty acid metabolism and PPAR pathways, was significantly over-expressed in the amygdala (P<0.007) and in the blood (P<0.01) of stressed rats compared with non-stressed controls. In human subjects with (n=28) or without PTSD (n=31), significant over-expression of CPT1B in PTSD was also observed in the two common dysregulated pathways: fatty acid metabolism (P=0.0027, false discovery rate (FDR)=0.043) and PPAR (P=0.006, FDR=0.08). Quantitative real-time polymerase chain reaction validated the microarray findings and the CPT1B result. These findings indicate that blood can be used as a specimen in the search for PTSD biomarkers in fatty acid metabolism and PPAR pathways, and, in addition, that CPT1B may contribute to the pathology of PTSD.
The positive effect on ketamine as a priming adjuvant in antidepressant treatment
Authors: Melo A , Kokras N , Dalla C , Ferreira C , Ventura-Silva A P , Sousa N , Pêgo J M
Published: June 2015

Ketamine is an anesthetic with antidepressant properties. The rapid and lasting effect of ketamine observed in preclinical and clinical research makes it a promising therapeutic to improve current major depression (MD) treatment. Our work intended to evaluate whether the combined use of classic antidepressants (imipramine or fluoxetine) and ketamine would improve the antidepressant response. Using an animal model of depressive-like behavior, we show that the addition of ketamine to antidepressants anticipates the behavioral response and accelerates the neuroplastic events when compared with the use of antidepressants alone. In conclusion, our results suggest the need for a reappraisal of the current pharmacological treatment of MD.
Hydrazinonicotinic acid derivatization for selective ionization and improved glycan structure characterization by MALDI-MS
Authors: Jiao Jing , Yang Lijun , Zhang Ying , Lu Haojie
Published: June 2015

Selective ionization and improved glycan structure characterization by MALDI-MS were achieved through derivatization of glycans by hydrazinonicotinic acid under different acid catalysis.
An ultralow background substrate for protein microarray technology
Authors: Feng Hui , Zhang Qingyang , Ma Hongwei , Zheng Bo
Published: June 2015

A polydopamine modified fluoro-polymer provides a new microarray substrate with ultralow background and uniform spot morphology.
Revisiting the analysis of impedance data for double layer capacitance
Authors: Özcan Muzaffer
Published: June 2015

Absolute values of the differences between experimental and the K–K transformed data.
A new aluminium-ion battery with high voltage, high safety and low cost
Authors: Sun Haobo , Wang Wei , Yu Zhijing , Yuan Yan , Wang Shuai , Jiao Shuqiang
Published: June 2015

A new aluminium-ion battery with high voltage, high safety and low cost, which might light the future.
Detecting miRNA by producing RNA: a sensitive assay that combines rolling-circle DNA polymerization and rolling circle transcription
Authors: Li Xuemei , Zheng Fuwei , Ren Rui
Published: June 2015

Target miRNA was detected by producing RNA: rolling circle polymerization (RCP) and rolling circle transcription (RCT) were interlinked to provide dual amplification, which was coupled with SERS (surface-enhanced Raman scattering) for signal production.
Catalytic oxidation of water and alcohols by a robust iron(iii) complex bearing a cross-bridged cyclam ligand
Authors: Tan Peng , Kwong Hoi-Ki , Lau Tai-Chu
Published: June 2015

An iron(iii) complex functions as a molecular catalyst for both oxidation of water and alcohols using sodium periodate as an oxidant.
Surface plasmon & visible light for polymer functionalization of mesopores and manipulation of ionic permselectivity
Authors: Herzog Nicole , Kind Jonas , Hess Christian , Andrieu-Brunsen Annette
Published: June 2015

Surface plasmons and visible light have been used for polymer functionalization of mesoporous thin silica films resulting in ionic permselectivity control. Near-field induced surface functionalization bares a high potential for nanoscale surface modification.
Visible light promoted hydration of alkynes catalyzed by rhodium(iii) porphyrins
Authors: Liu Xu , Liu Lianghui , Wang Zikuan , Fu Xuefeng
Published: June 2015

Visible light promoted hydration of a wide scope of alkynes to ketones catalyzed by rhodium(iii) porphyrin complexes was described.
Selective targeting of Mycobacterium smegmatis with trehalose-functionalized nanoparticles
Authors: Jayawardana Kalana W. , Jayawardena H. Surangi N. , Wijesundera Samurdhi A. , De Zoysa Thareendra , Sundhoro Madanodaya , Yan Mingdi
Published: June 2015

Trehalose conjugated nanomaterials showed strong interactions withMycobacterium smegmatis. Furthermore, these nanomaterials interacted only with mycobacteria onM. smegmatis-treated A549 cells.
N-Heterocyclic carbene-catalyzed [3+3] cyclocondensation of bromoenals with aldimines: highly enantioselective synthesis of dihydropyridinones
Authors: Gao Zhong-Hua , Chen Xiang-Yu , Zhang Han-Ming , Ye Song
Published: June 2015

The N-heterocyclic carbene-catalyzed [3+3] cyclocondensation of bromoenals and aldimines was developed, giving the corresponding dihydropyridinones in good yields with excellent enantioselectivities.
Imidazolium salt-modified porous hypercrosslinked polymers for synergistic CO2 capture and conversion
Authors: Wang Jinquan , Sng Waihong , Yi Guangshun , Zhang Yugen
Published: June 2015

The synergistic effect of CO2 capture and conversion was observed in imidazolium salt modified porous hypercrosslinked polymers.
Nature of the interaction between rare gas atoms and transition metal doped silicon clusters: the role of shielding effects
Authors: Ngan Vu Thi , Janssens Ewald , Claes Pieterjan , Fielicke André , Nguyen Minh Tho , Lievens Peter
Published: June 2015

Density functional calculations and mass spectrometry reveal the role of a shielding effect from s-character electrons in the complexation between rare gas (Ar, Xe) and SinMn+(n= 6–10), Si7TM+(TM = Cr, Mn, Cu and Zn).
The effects of extended conjugation length of purely organic phosphors on their phosphorescence emission properties
Authors: Lee Dongwook , Ma Xiao , Jung Jaehun , Jeong Eun Jeong , Hashemi Hossein , Bregman Avi , Kieffer John , Kim Jinsang
Published: June 2015

Computational investigation and experimental data reveal that the intersystem crossing rate decreases with extended conjugation in bromobenzaldehyde derivatives.
The electronic properties of mixed valence hydrated europium chloride thin film
Authors: Silly M. G. , Charra F. , Lux F. , Lemercier G. , Sirotti F.
Published: June 2015

We investigate the electronic properties of a model mixed-valence hydrated chloride europium salt by means of high resolution photoemission spectroscopy (HRPES) and resonant photoemission spectroscopy (RESPES) at the Eu 3d → 4f and 4d → 4f transitions.
Wurtzite CZTS nanocrystals and phase evolution to kesterite thin film for solar energy harvesting
Authors: Ghorpade Uma V. , Suryawanshi Mahesh P. , Shin Seung Wook , Hong Chang Woo , Kim Inyoung , Moon Jong H. , Yun Jae Ho , Kim Jin Hyeok , Kolekar Sanjay S.
Published: June 2015

A quaternary indium- and gallium-free kesterite (KS)-based compound, copper zinc tin sulfide (Cu2ZnSnS4, CZTS), has received significant attention for its potential applications in low cost and sustainable solar cells.
Complexes of peracetylated cyclodextrin in a non-aqueous aprotic medium: the role of residual water
Authors: Jicsinszky Laszlo , Martina Katia , Caporaso Marina , Cintas Pedro , Zanichelli Andrea , Cravotto Giancarlo
Published: June 2015

Not all peracetylated cyclodextrins can be completely dried and water protons can be invisible due to the overlapping signals of the acetyl groups. Apparent stability constants of complexes were also calculated.
Quantum interference and structure-dependent orbital-filling effects on the thermoelectric properties of quantum dot molecules
Authors: Chen Chih-Chieh , Kuo David M. T. , Chang Yia-Chung
Published: June 2015

The quantum interference and orbital filling effects on the thermoelectric (TE) properties of quantum dot (QD) molecules with high figure of merit are illustrated via the full solution to the Hubbard–Anderson model in the Coulomb blockade regime.
Electronic and optical properties of pristine and boron–nitrogen doped graphyne nanotubes
Authors: Bhattacharya B. , Singh N. B. , Mondal R. , Sarkar U.
Published: June 2015

The band gaps and optical responses of graphyne nanotubes can be engineered through the selection of the BN doping site and the chirality.
MOF crystal growth: UV resonance Raman investigation of metal–ligand binding in solution and accelerated crystal growth methods
Authors: Petersen Thomas D. , Balakrishnan Gurusamy , Weeks Colin L.
Published: June 2015

Resonance Raman spectroscopy can detect metal–ligand binding in solution during the formation of MOF crystals.
Synthesis and unique reversible splitting of 14-membered cyclic aminomethylphosphines on to 7-membered heterocycles
Authors: Musina Elvira I. , Fesenko Tatiana I. , Strelnik Igor D. , Polyancev Fedor M. , Latypov Shamil K. , Lönnecke Peter , Hey-Hawkins Evamarie , Karasik Andrey A. , Sinyashin Oleg G.
Published: June 2015

Unique reversible process of novel 14-membered cyclic polyphosphines splitting onto rac- and meso- stereoisomers of 1-aza-3,6-diphosphacycloheptanes has been discovered.
Ionic liquids in the electrochemical valorisation of CO2
Authors: Alvarez-Guerra Manuel , Albo Jonathan , Alvarez-Guerra Enrique , Irabien Angel
Published: June 2015

This work reviews the use of ionic liquids in electrochemical approaches for the valorisation of CO2into value-added products, highlighting the beneficial role that ionic liquids can play in improving CO2electrovalorisation processes.
Occurrence and distribution of phosphorus fractions in sediments of Liangzi Lake under typical hydrodynamic conditions
Authors: Li Hailan , Tu Shuxin , Guan Guan , Xie Zhijian , Muhammad Imtiaz
Published: June 2015

Understanding the transformation and chronological accumulation of phosphorus (P) forms under typical hydrodynamic conditions of a lake is important for clarifying the process of lake evolution and eutrophication.
Photoelectrochemical properties of porphyrin dyes with a molecular dipole in the linker
Authors: Ngo Ken T. , Rochford Jonathan , Fan Hao , Batarseh Alberto , Chitre Keyur , Rangan Sylvie , Bartynski Robert A. , Galoppini Elena
Published: June 2015

The electronic properties of three porphyrin–bridge–anchor photosensitizers are reported with (1a, 1e, 3a and 3e) or without (2a and 2e) an intramolecular dipole in the bridge. The presence and orientation of the bridge dipole is hypothesized to influence the photovoltaic properties due to variations in the intrinsic dipole at the semiconductor–molecule interface. Electrochemical studies of the porphyrin–bridge–anchor dyes self-assembled on mesoporous nanoparticle ZrO2 films, show that the presence or direction of the bridge dipole does not have an observable effect on the electronic properties of the porphyrin ring. Subsequent photovoltaic measurements of nanostructured TiO2 semiconductor films in dye sensitized solar cells show a reduced photocurrent for photosensitizers 1a and 3a containing a bridge dipole. However, cooperative increased binding of the 1a + 3a co-sensitized device demonstrates that dye packing overrides any differences due to the presence of the small internal dipole.
Tartary buckwheat on nitric oxide-induced inflammation in RAW264.7 macrophage cells
Authors: Choi Soo Yeon , Choi Ji Yeon , Lee Jeong Min , Lee Sanghyun , Cho Eun Ju
Published: June 2015

We investigated the effects of tartary buckwheat (TB, Fagopyrum tataricum) on the production of pro-inflammatory mediators in lipopolysaccharide (LPS)- and interferon (IFN)-γ-stimulated RAW264.7 cells.
Stem cell derived in vivo-like human cardiac bodies in a microfluidic device for toxicity testing by beating frequency imaging
Authors: Bergström Gunnar , Christoffersson Jonas , Schwanke Kristin , Zweigerdt Robert , Mandenius Carl-Fredrik
Published: June 2015

We exploit the use of 3D clustered cardiac bodies (CBs) as a novel tool for toxicity testing in microfluidics.
Metal binding spectrum and model structure of theBacillus anthracisvirulence determinant MntA
Authors: Vigonsky Elena , Fish Inbar , Livnat-Levanon Nurit , Ovcharenko Elena , Ben-Tal Nir , Lewinson Oded
Published: June 2015

TheBacillus anthracisvirulence determinant MntA is a high-affinity manganese system.
Syntheses and characterizations of six Co(ii) and Mn(ii) coordination polymers based on amino-substituted 5-aminoisophthalate and flexible bis(imidazolyl) ligands
Authors: Li Xiaoju , Sun Xiaofei , Li Xinxiong , Xu Xiahong
Published: June 2015

The deprotection of amino-substituted 5-aminoisophthalates and competitive coordination with bis(imidazolyl) ligands show important effects on coordination polymers.
Synthesis and optical and electrochemical properties of polycyclic aromatic compounds with S,S-dioxide benzothiophene fused seven rings
Authors: Yang Yong , Liang Junfei , Hu Liwen , Zhang Bin , Yang Wei
Published: June 2015

Two linearly fused polycyclic aromatic compounds (CzBTO and FBTO) containing the S,S-dioxide benzothiophene unit showed high thermal stability and deep HOMO energy levels. FBTO gave a high photoluminescence quantum yield of 77%.
Luminomagnetic bifunctionality of Mn2+-bonded graphene oxide/reduced graphene oxide two dimensional nanosheets
Authors: Amandeep Amandeep , Kedawat Garima , Kumar Pawan , Anshul Avaneesh , Deshmukh Abhay D. , Singh Om Pal , Gupta R. K. , Amritphale S. S. , Gupta Govind , Singh V. N. , Gupta Bipin Kumar
Published: June 2015

Luminomagnetic two-dimensional Mn2+ bonded GO/RGO nanosheets synthesized by solvothermal reduction method for various technological applications.
An NIR-triggered and thermally responsive drug delivery platform through DNA/copper sulfide gates
Authors: Zhang Lei , Li Yecheng , Jin Zexun , Yu Jimmy C. , Chan King Ming
Published: June 2015

Nanomaterials for effective drug delivery that exhibit temperature and NIR-responsive DOX release.
Biomimetic flavin-catalysed reactions for organic synthesis
Authors: Iida H. , Imada Y. , Murahashi S.-I.
Published: June 2015

Using simple riboflavin related compounds as biomimetic catalysts, catalytic oxidation of various substrates with hydrogen peroxide or molecular oxygen can be performed selectively under mild conditions. The principle of these reactions is fundamental and will provide a wide scope for environmentally benign future practical methods.
Metal and base free synthesis of primary amines via ipso amination of organoboronic acids mediated by [bis(trifluoroacetoxy)iodo]benzene (PIFA)
Authors: Chatterjee Nachiketa , Goswami Avijit
Published: June 2015

A metal and base free synthesis of primary amines has been developed at ambient temperature throughipsoamination of diversely functionalized organoboronic acids, employing a combination of [bis(trifluoroacetoxy)iodo]benzene (PIFA)–N-bromosuccinimide (NBS) and methoxyamine hydrochloride as the aminating reagent.
Effect of copolymer composition of RAFT/MADIX-derived N-vinylcaprolactam/N-vinylpyrrolidone statistical copolymers on their thermoresponsive behavior and hydrogel properties
Authors: Zhao Xuange , Coutelier Olivier , Nguyen Hanh Hong , Delmas Céline , Destarac Mathias , Marty Jean-Daniel
Published: June 2015

RAFT/MADIX statistical copolymerization of N-vinyl lactams enables to tune thermoresponsiveness and rheological properties of copolymers in aqueous solutions.
Alkoxyamine-functionalized latex nanoparticles through RAFT polymerization-induced self-assembly in water
Authors: St Thomas Claude , Guerrero-Santos Ramiro , D'Agosto Franck
Published: June 2015

Alkoxyamine-functionalized latex nanoparticles were obtained through RAFT polymerization-induced self-assembly in water using poly(acrylic acid) macroRAFT carrying alkoxyamine moieties.
Synthesis of polystyrene-grafted cellulose acetate copolymers via nitroxide-mediated polymerization
Authors: Moreira Guillaume , Fedeli Elisabetta , Ziarelli Fabio , Capitani Donatella , Mannina Luisa , Charles Laurence , Viel Stéphane , Gigmes Didier , Lefay Catherine
Published: June 2015

Cellulose acetate-g-polystyrene grafted copolymers have been synthesized by NMP under homogeneous conditions by using the 1,2-intermolecular radical addition methodology.
Eco-friendly synthesis of hierarchical ginkgo-derived carbon nanoparticles/NiAl-layered double hydroxide hybrid electrodes toward high-performance supercapacitors
Authors: Liu Mingkai , He Sixin , Miao Yue-E , Huang Yunpeng , Lu Hengyi , Zhang Longsheng , Liu Tianxi
Published: June 2015

Eco-friendly prepared three-dimensional mesoporous carbon nanoparticles (CP)/NiAl-layered double hydroxide (NiAl-LDH) hybrids (CP/LDHs) with hierarchical nanostructures exhibited remarkably improved electrochemical performance in supercapacitors.
Improve piezoelectricity and elasticity of Ce-doped BaTiO3 nanofibers — towards energy harvesting application
Authors: Zhuang Yongyong , Xu Zhuo , Li Fei , Liao Zhipeng , Liu Weihua
Published: June 2015

A simple method was introduced to fabricated energy harvester, which shows flexibility, high efficiently and effective operation between room temperature and Curie temperature.
Gliomasolides A–E, unusual macrolides from a sponge-derived fungus Gliomastix sp. ZSDS1-F7-2
Authors: Zhang Jun , Lin Xiu-Ping , Li Liang-Chun , Zhong Ba-Lian , Liao Xiao-Jian , Liu Yong-Hong , Xu Shi-Hai
Published: June 2015

Five unusual macrolides were identified with their structures being established by extensive spectroscopic and single-crystal X-ray diffraction studies.
Suppression of photocatalysis and long-lasting luminescence in ZnGa2O4by Cr3+doping
Authors: Li Lei , Wang Yin-hai , Li Hong , Huang Hai-ju , Zhao Hui
Published: June 2015

Long-lasting luminescence intensity and photocatalytic activity are highly correlated; thus, we can develop photocatalytic activityviacontrolling luminescence properties.
Characterization and electrochemical properties of a nickel film/carbon paper electrode prepared by a filtered cathodic vacuum arc technique
Authors: Fu Yingyi , Su Wen , Wang Tong , Hu Jingbo
Published: June 2015

SEM spectrum of bare CP in low magnification (A), bare CP of cross-sectional views (B), bare CP in high magnification (C), Ni/CP in high magnification (D) and EDS spectrum of bare CP (E) and Ni/CP electrode (F).
Magnetic amine-functionalized polyacrylic acid-nanomagnetite for hexavalent chromium removal from polluted water
Authors: Gao Feng , Gu Hongbo , Wang Huanwen , Wang Xuefeng , Xiang Bo , Guo Zhanhu
Published: June 2015

A magnetic amine-functionalized polyacrylic acid-nanomagnetite adsorbent is developed for the removal of toxic hexavalent chromium from polluted water.
Impacts of gold nanoparticle charge and ligand type on surface binding and toxicity to Gram-negative and Gram-positive bacteria
Authors: Feng Z. Vivian , Gunsolus Ian L. , Qiu Tian A. , Hurley Katie R. , Nyberg Lyle H. , Frew Hilena , Johnson Kyle P. , Vartanian Ariane M. , Jacob Lisa M. , Lohse Samuel E. , Torelli Marco D. , Hamers Robert J. , Murphy Catherine J. , Haynes Christy L.
Published: June 2015

Higher cationic charge density on nanoparticles is correlated with higher toxicity to bacteria.
Site-selective formation of an iron(iv)–oxo species at the more electron-rich iron atom of heteroleptic μ-nitrido diiron phthalocyanines
Authors: İşci Ümit , Faponle Abayomi S. , Afanasiev Pavel , Albrieux Florian , Briois Valérie , Ahsen Vefa , Dumoulin Fabienne , Sorokin Alexander B. , de Visser Sam P.
Published: June 2015

A combination of MS and computation on μ-nitrido bridged diiron complexes reveals H2O2binding to the complex and generates an oxidant capable of oxidizing methane.
Toward an understanding of the thermosensitive behaviour of pH-responsive hydrogels based on cyclodextrins
Authors: Rossi Barbara , Venuti Valentina , D'Amico Francesco , Gessini Alessandro , Mele Andrea , Punta Carlo , Melone Lucio , Crupi Vincenza , Majolino Domenico , Trotta Francesco , Masciovecchio Claudio
Published: June 2015

The thermal response of pH-responsive cyclodextrin-based hydrogels is investigated by the joint use of UV Raman and IR measurements.
Carbon-supported Mo2C electrocatalysts for hydrogen evolution reaction
Authors: Šljukić B. , Vujković M. , Amaral L. , Santos D. M. F. , Rocha R. P. , Sequeira C. A. C. , Figueiredo J. L.
Published: June 2015

Molybdenum carbide (Mo2C) nanoparticles supported on carbon nanotubes and on carbon xerogel were evaluated as electrocatalysts for HER in acid media, showing good performance and stability.
Investigation of hollow nitrogen-doped carbon spheres as non-precious Fe–N4 based oxygen reduction catalysts
Authors: Sanetuntikul Jakkid , Chuaicham Chitiphon , Choi Young-Woo , Shanmugam Sangaraju
Published: June 2015

The effect of nitrogen type and content along with metal doping in hollow carbon spheres on oxygen reduction activity is described.
Cube-shaped hierarchical LiNi1/3Co1/3Mn1/3O2 with enhanced growth of nanocrystal planes as high-performance cathode materials for lithium-ion batteries
Authors: Wu Yu , Cao Chuanbao , Zhu Youqi , Li Jili , Wang Lin
Published: June 2015

Hierarchical cubed LiNi1/3Co1/3Mn1/3O2 cathodes with enhanced growth of electrochemically active planes exhibit enhanced electrochemical performance.
Characteristics of giant piezoelectricity around the rhombohedral-tetragonal phase boundary in (K,Na)NbO3-based ceramics with different additives
Authors: Wang Xiaopeng , Zheng Ting , Wu Jiagang , Xiao Dingquan , Zhu Jianguo , Wang Hui , Wang Xiangjian , Lou Xiaojie , Gu Yueliang
Published: June 2015

We confirmed the EPT in KNN-based ceramics through experiment and theory, and found it could play a positive role in the piezoelectricity.
Unseeded hydroxide-mediated synthesis and CO2 adsorption properties of an aluminosilicate zeolite with the RTH topology
Authors: Jo Donghui , Lim Jong Bin , Ryu Taekyung , Nam In-Sik , Camblor Miguel A. , Hong Suk Bong
Published: June 2015

Unseeded hydroxide-mediated synthesis and CO2 adsorption properties of an aluminosilicate zeolite with the RTH topology.
A facile method to prepare highly compressible three-dimensional graphene-only sponge
Authors: Li Jinhui , Zhao Songfang , Zhang Guoping , Gao Yongju , Deng Libo , Sun Rong , Wong Ching-Ping
Published: June 2015

Highly compressible three-dimensional graphene-only sponges (CGSs) were prepared through a facile method. The CGSs show ultralow density, high porosity, great compressibility and excellent stability which make them great candidates for pressure-responsive sensors, elastic conductors and other applications.
Identifying the optimum thickness of electron transport layers for highly efficient perovskite planar solar cells
Authors: Lu Hao , Ma Yulong , Gu Bangkai , Tian Wei , Li Liang
Published: June 2015

Ultrathin 10 nm ALD TiO2 films as efficient electron transport layers for perovskite planar solar cells with an efficiency of 13.6%.
Development of molecularly imprinted polymer nanoarrays of N-acryloyl-2-mercaptobenzamide on a silver electrode for ultratrace sensing of uracil and 5-fluorouracil
Authors: Prasad Bhim Bali , Kumar Anil
Published: June 2015

Graphical representation of development of mip-nanoarrays.
Acid degradable poly(vinylcaprolactam)-based nanogels with ketal linkages for drug delivery
Authors: Wang Yang , Zheng Jin , Tian Yefei , Yang Wuli
Published: June 2015

We developed acid degradable P(VCL-ketal-HPMA) nanogels for drug delivery via precipitation polymerization using ketal-bonded DMAEP as a cross-linker and hydrophilic HPMA as a comonomer.
Antimicrobial and cell-compatible surface-attached polymer networks – how the correlation of chemical structure to physical and biological data leads to a modified mechanism of action
Authors: Zou Peng , Laird Dougal , Riga Esther K. , Deng Zhuoling , Dorner Franziska , Perez-Hernandez Heidi-Rosalia , Guevara-Solarte D. Lorena , Steinberg Thorsten , Al-Ahmad Ali , Lienkamp Karen
Published: June 2015

In this paper, we investigate the correlation of physical parameters and antimicrobial activity.
Solution processed liquid metal-conducting polymer hybrid thin films as electrochemical pH-threshold indicators
Authors: Mitraka E. , Kergoat L. , Khan Z. U. , Fabiano S. , Douhéret O. , Leclère P. , Nilsson M. , Andersson Ersman P. , Gustafsson G. , Lazzaroni R. , Berggren M. , Crispin X.
Published: June 2015

Liquid-metal droplets dispersed in a conducting polymer matrix is a material concept for printable electrochemical pH-threshold indicators.