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https://www.readbyqxmd.com/read/27922204/encapsulation-of-bimetallic-metal-nanoparticles-into-robust-zr-based-metal-organic-frameworks-evaluation-of-the-catalytic-potential-for-size-selective-hydrogenation
#1
Christoph Rösler, Stefano Dissegna, Victor Lopez Rechac, Max Kauer, Penghu Guo, Stuart Turner, Kevin Ollegott, Hirokazu Kobayashi, Tomokazu Yamamoto, Daniel Peeters, Yuemin Wang, Syo Matsumura, Gustaaf Van Tendeloo, Hiroshi Kitagawa, Martin Muhler, Francesc X Llabrés I Xamena, Roland A Fischer
The realization of metal NPs with bimetallic character and distinct composition for specific catalytic applications is an intensively studied field. Due to the synergy between metals, most of the bimetallic particles exhibit unique properties, only hardly provided by the individual monometallic counterparts. However, as small sized NPs possess high surface energy, agglomeration during catalytic reactions is favored. Sufficient stabilization can be achieved by confinement of NPs in porous support materials. In this sense, especially MOFs gained a lot of attention during the last years, however, encapsulation of bimetallic species remains challenging...
December 6, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27921182/pancreas-oriented-superior-mesenteric-vein-dissection-for-d3-lymphadenectomy-in-laparoscopic-right-hemicolectomy
#2
W-J Meng, X-B Deng, Y-C Zhang, M-T Wei, C-W Jin, Z-Q Wang
No abstract text is available yet for this article.
December 5, 2016: Techniques in Coloproctology
https://www.readbyqxmd.com/read/27921096/poly-glycoamidoamine-brush-nanomaterials-for-systemic-sirna-delivery-in-vivo
#3
X Luo, W Wang, J R Dorkin, O Veiseh, P H Chang, I Abutbul-Ionita, D Danino, R Langer, D G Anderson, Y Dong
Delivery is the key challenge for siRNA based therapeutics. Here, we report the development of new poly(glycoamidoamine) brush nanomaterials for efficient siRNA delivery. GluN4C10 polymer brush nanoparticles, a lead material, demonstrated significantly improved delivery efficiency for siRNA against factor VII (FVII) in mice compared to poly(glycoamidoamine) brush nanomaterials reported previously.
December 6, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27920661/endoscopic-removal-of-a-duodenal-perforating-leg-of-glasses-with-dormia-basket
#4
Li Wang, Wei Wen, Jiamiao Huang, Weijie Hu, Renrong Zhou, Xin Li, Xiaojiang Wang
Ingestion of foreign bodies is common in clinical practice. Most ingested foreign bodies will pass through the gastrointestinal (GI) tract without any problems. While GI tract injury due to the ingested foreign body such as a toothpick, a fishbone, a date pit, or a chicken bone, is common, duodenal perforation is rare. In this report, our experience with this rare entity is shared. We present a 38-year-old male patient with GI tract perforation in the bulbus of the duodenum due to a leg of glasses. The patient was admitted to our hospital with severe abdominal pain...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27919530/sources-of-formaldehyde-and-their-contributions-to-photochemical-o3-formation-at-an-urban-site-in-the-pearl-river-delta-southern-china
#5
Z H Ling, J Zhao, S J Fan, X M Wang
Two models (the Positive Matrix Factorization (PMF) model and a photochemical box model with Master Chemical Mechanism (PBM-MCM)) were applied to analyze the formaldehyde (HCHO) data collected in July 2006 at an urban site (GPEMC) in the Pearl River Delta (PRD), southern China. Three major HCHO sources (secondary formation, vehicular exhaust, and solvent usage) were identified and they were found to contribute in average 53%, 31% and 16% respectively to the total HCHO loading at GPEMC. Alkenes was the most important group contributing to the secondary formation of HCHO, followed by aromatics and alkanes...
December 2, 2016: Chemosphere
https://www.readbyqxmd.com/read/27919518/polydopamine-decorated-3d-nickel-foam-for-extraction-of-sixteen-polycyclic-aromatic-hydrocarbons
#6
Ying Cai, Zhihong Yan, Ming Yang, Xiaoying Huang, Weiping Min, Lijia Wang, Qingyun Cai
In this work, polydopamine coated 3D nickel foam (NF-PDA) was prepared and applied as sorbent for the solid phase extraction (SPE) of 16 polycyclic aromatic hydrocarbons (PAHs) from water samples. NF-PDA were synthesized by situ oxidative self-polymerization procedure and characterized by using the techniques of scanning electron microscopy (SEM), energy dispersive spectrum analysis (EDS) and X-ray photoelectron spectroscopy (XPS). Its performance was evaluated by the SPE of 16 PAHs from water samples, followed by gas chromatography-mass spectrometrical (GC-MS) analysis...
November 21, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27919171/cpg-methylation-participates-in-regulation-of-hepatitis-b-virus-gene-expression-in-host-sperm-and-sperm-derived-embryos
#7
ChengYao Zhong, Hui Lu, TingTing Han, XiaoFang Tan, PengHao Li, JiHua Huang, QingDong Xie, ZhiWei Hou, Ting Qu, Yang Jiang, Sheng Wang, Lan Xu, Ying Zhong, TianHua Huang
AIM: This study was undertaken to investigate relationship between hepatitis B virus (HBV) CpG methylation and HBV gene transcription in sperm and sperm-derived embryos. METHODS: HBV-infected patient sperm and HBV plasmid-transfected donor sperm were subjected to interspecific in vitro fertilization, methylation-specific PCR, bisulfite sequencing PCR, reverse transcription PCR and real-time quantitative PCR. RESULTS: Positive methylation bands for CpG islands II and III in the HBV genome were observed in patient sperm but not in controls, and methylation percentages of CpG sites varied among different patient sperm samples...
December 6, 2016: Epigenomics
https://www.readbyqxmd.com/read/27918738/venous-thromboembolism-after-oral-and-maxillofacial-oncologic-surgery-report-and-analysis-of-14-cases-in-chinese-population
#8
Y Wang, J Liu, X Yin, J Hu, E Kalfarentzos, C Zhang, L Xu
BACKGROUND: Venous thromboembolism (VTE) including deep vein thrombosis (DVT) and pulmonary embolism (PE) is a leading cause of death in cancer patients. The aim of this study was to explore the potential risk factor of VTE in oral and maxillofacial oncological surgery. MATERIAL AND METHODS: The data of patients who received operation in our institution were gathered in this retrospective study. A diagnosis of VTE was screened and confirmed by computer tomography angiography (CTA) of pulmonary artery or ultrasonography examination of lower extremity...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27918294/synthesis-and-characterization-of-a-cadmium-ii-organic-supramolecular-coordination-compound-based-on-the-multifunctional-2-amino-5-sulfobenzoic-acid-ligand
#9
Gan Yin Yuan, Lei Zhang, Meng Jie Wang, Kou Lin Zhang
Much attention has been paid by chemists to the construction of supramolecular coordination compounds based on the multifunctional ligand 5-sulfosalicylic acid (H3SSA) due to the structural and biological interest of these compounds. However, no coordination compounds have been reported for the multifunctional amino-substituted sulfobenzoate ligand 2-amino-5-sulfobenzoic acid (H2asba). We expected that H2asba could be a suitable building block for the assembly of supramolecular networks due to its interesting structural characteristics...
December 1, 2016: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/27918015/highly-efficient-polymer-solar-cells-by-step-by-step-optimizing-donor-molecular-packing-and-acceptor-redistribution
#10
Qianqian Sun, Fujun Zhang, Qiaoshi An, Miao Zhang, Jian Wang, Jian Zhang
The dynamic drying process of the active layer should play a vitally important role in determining the performance of polymer solar cells (PSCs). Donor molecular packing and acceptor redistribution can be optimized by two successive post-treatments on the active layer. The blend films were freshly prepared by spin-coating method and then immediately transferred to a covered glass Petri dish to allow self-assembly of the donor molecules. The films were then treated with methanol or PFN-methanol solution to adjust the acceptor redistribution...
December 5, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27917923/revealing-extraordinary-tensile-plasticity-in-layered-ti-al-metal-composite
#11
M Huang, G H Fan, L Geng, G J Cao, Y Du, H Wu, T T Zhang, H J Kang, T M Wang, G H Du, H L Xie
Layered Ti-Al metal composite (LMC) fabricated by hot-pressing and hot-rolling process displays higher ductility than that of both components. In this paper, a combination of digital image correlation (DIC) and X-ray tomography revealed that strain delocalization and constrained crack distribution are the origin of extraordinary tensile ductility. Strain delocalization was derived from the transfer of strain partitioning between Ti and Al layer, which relieved effectively the strain localization of LMC. Furthermore, the extensive cracks of LMC were restricted in the interface due to constraint effect...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917858/discovery-of-a-new-type-of-topological-weyl-fermion-semimetal-state-in-moxw1-xte2
#12
Ilya Belopolski, Daniel S Sanchez, Yukiaki Ishida, Xingchen Pan, Peng Yu, Su-Yang Xu, Guoqing Chang, Tay-Rong Chang, Hao Zheng, Nasser Alidoust, Guang Bian, Madhab Neupane, Shin-Ming Huang, Chi-Cheng Lee, You Song, Haijun Bu, Guanghou Wang, Shisheng Li, Goki Eda, Horng-Tay Jeng, Takeshi Kondo, Hsin Lin, Zheng Liu, Fengqi Song, Shik Shin, M Zahid Hasan
The recent discovery of a Weyl semimetal in TaAs offers the first Weyl fermion observed in nature and dramatically broadens the classification of topological phases. However, in TaAs it has proven challenging to study the rich transport phenomena arising from emergent Weyl fermions. The series MoxW1-xTe2 are inversion-breaking, layered, tunable semimetals already under study as a promising platform for new electronics and recently proposed to host Type II, or strongly Lorentz-violating, Weyl fermions. Here we report the discovery of a Weyl semimetal in MoxW1-xTe2 at x=25%...
December 5, 2016: Nature Communications
https://www.readbyqxmd.com/read/27917751/hbsag-may-reappear-following-reactivation-in-individuals-with-spontaneous-hbsag-seroclearance-8-years-previously
#13
Q Y Chen, X Y Wang, T J Harrison, X He, L P Hu, K W Li, H H Jia, Q L Yang, C Wang, Z L Fang
HBsAg reappearance may constitute not only a risk for liver disease but also an infectious source. We aimed to determine whether HBsAg may reappear after spontaneous HBsAg seroclearance. A cohort of 2999 HBsAg-positive subjects aged 30-55 years was recruited in Guangxi, China in 2004. HBsAg was tested every 6 months from July 2004 to June 2007, then, one more time in December 2013. The results showed that spontaneous HBsAg seroclearance occurred in 41 subjects in the first 3 years, giving a 0·54% annual seroclearance rate...
December 5, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27917297/an-intrinsic-agonist-mechanism-for-activation-of-glucagon-like-peptide-1-receptor-by-its-extracellular-domain
#14
Yanting Yin, X Edward Zhou, Li Hou, Li-Hua Zhao, Bo Liu, Gaihong Wang, Yi Jiang, Karsten Melcher, H Eric Xu
The glucagon-like peptide-1 receptor is a class B G protein coupled receptor (GPCR) that plays key roles in glucose metabolism and is a major therapeutic target for diabetes. The classic two-domain model for class B GPCR activation proposes that the apo-state receptor is auto-inhibited by its extracellular domain, which physically interacts with the transmembrane domain. The binding of the C-terminus of the peptide hormone to the extracellular domain allows the N-terminus of the hormone to insert into the transmembrane domain to induce receptor activation...
2016: Cell Discovery
https://www.readbyqxmd.com/read/27916858/three-dimensional-continuous-displacement-measurement-with-temporal-speckle-pattern-interferometry
#15
Jie Qin, Zhan Gao, Xu Wang, Shanwei Yang
A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements (displacements in the x- and y-direction) and one out-of-plane displacement (displacement in the z-direction), respectively. One color CCD camera is employed to collect these mixed speckle interferograms simultaneously. The mixed interferograms are separated by the Red, Green and Blue channels of the color CCD camera, and then are processed by the wavelet transform technique to extract the phase information of the measured object...
November 29, 2016: Sensors
https://www.readbyqxmd.com/read/27916727/posttraumatic-administration-of-a-sub-anesthestic-dose-of-ketamine-exerts-neuroprotection-via-attenuating-inflammation-and-autophagy
#16
C-Q Wang, Y Ye, F Chen, W-C Han, J-M Sun, X Lu, R Guo, K Cao, M-J Zheng, L-C Liao
As a complex disease, traumatic brain injury (TBI) can result in long-term psychiatric changes and sensorimotor and cognitive impairments. The TBI-induced loss of memory and long-term cognitive dysfunction are related to mechanistic factors including an increased inflammatory response, autophagy, edema, and ischemia. Many published studies have offered evidence for the neuroprotective effects and anti-inflammatory properties of ketamine for TBI patients. Nonetheless, there is a limited understanding of the accurate mechanism that underlies the potential neuroprotective effects of ketamine...
December 1, 2016: Neuroscience
https://www.readbyqxmd.com/read/27916606/fbx8-is-a-metastasis-suppressor-downstream-of-mir-223-and-targeting-mtor-for-degradation-in-colorectal-cancer
#17
F F Wang, X J Zhang, Y R Yan, X H Zhu, J Yu, Y Ding, J L Hu, W J Zhou, Z C Zeng, W T Liao, Y Q Ding, L Liang
F-box proteins are critical components of the SKP1-CUL1-F-box (SCF) E3 ubiquitin ligases and involved in the ubiquitin-dependent proteolytic pathway. Dysregulation of F-box protein-mediated proteolysis often leads to human malignancies. F-box only protein 8 (FBX8), a novel component of F-box proteins, is down-regulated in several tumors and closely correlates with tumor progression. However, little is known about its function, regulatory mechanisms and substrates in the progression of colorectal cancer (CRC)...
December 1, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27916084/-epidemiological-characteristics-of-dyslipidemia-in-remote-rural-areas-of-xinjiang-2009-2010
#18
Y L Wang, Y Z Yan, J He, J L Ma, M Zhang, J Y Zhang, J M Liu, S G Li, Q Niu, D S Rui, R L Ma, H Guo, Y S Ding, S X Guo
Objective: This study aimed to estimate the prevalence of dyslipidemia, hypertriglyceridemia, hypercholesterolemia, high blood low density lipoprotein cholesterol (LDL-C), and low blood high density lipoprotein cholesterol (HDL-C) in remote rural areas of Xinjiang and analyze these indicators' epidemiological characteristics. Methods: A survey of 13 000 individuals (aged ≥18 years) was conducted using a four-stage cluster random sampling method in Jiashi, Xinyuan, Aheqi, and Shawan Counties, Xinjiang, in 2009-2010...
November 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/27916083/-effects-of-chronic-intermittent-hypoxia-on-hepatic-function-and-protective-mechanism-of-adiponectin-in-rats
#19
R Xue, J Cao, X L Zhang, W X Ding, W J Wang, H P Huang
Objective: To explore the effect of chronic intermittent hypoxia (CIH) on rats hepatic function, and the protective mechanism of adiponectin (Ad). Methods: Sixty healthy male wistar rats were randomly divided into 4 groups: normal control (NC), NC+ Ad, CIH, and CIH+ Ad groups with 15 rats in each. The rats in CIH and CIH+ Ad groups were exposed to an intermittent hypoxic chamber 8 hours per day for 4 months. Meanwhile, the rats in both the NC and NC + Ad groups were housed with normal pressure air. The rats in the NC+ Ad and CIH+ Ad groups were additionally treated with an intravenous injection of Ad (10 μg), twice a week for 4 months...
November 29, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27916077/-intestinal-barrier-dysfunction-and-its-related-factors-in-patients-with-sepsis
#20
W Liu, X H Wang, X J Yang, X Y Zhang, W J Qi
Objective: To investigate the relationship between related factors of intestinal barrier dysfunction in patients with sepsis or septic shock and severity of the condition. Methods: A prospective observational study was conducted in 31 sepsis patients, 28 septic shock patients, and 21 postoperative patients without sepsis (control group) who were admitted to intensive care unit (ICU) of General Hospital of Ningxia Medical University between November 2015 and June 2016. Blood samples were collected from the patients within 24 hours following admission to ICU...
November 29, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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