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https://www.readbyqxmd.com/read/28718012/implant-decontamination-with-phosphoric-acid-during-surgical-peri-implantitis-treatment-a-rct
#1
Diederik F M Hentenaar, Yvonne C M De Waal, Hans Strooker, Henny J A Meijer, Arie-Jan Van Winkelhoff, Gerry M Raghoebar
BACKGROUND: Peri-implantitis is known as an infectious disease that affects the peri-implant soft and hard tissue. Today, scientific literature provides very little evidence for an effective intervention protocol for treatment of peri-implantitis. The aim of the present randomized controlled trial is to evaluate the microbiological and clinical effectiveness of phosphoric acid as a decontaminating agent of the implant surface during surgical peri-implantitis treatment. METHODS: Peri-implantitis lesions were treated with resective surgical treatment aimed at peri-implant granulation tissue removal, bone recontouring, and pocket elimination...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28715381/modified-terminal-restriction-fragment-analysis-for-quantifying-telomere-length-using-in-gel-hybridization
#2
Frank J Jenkins, Charles M Kerr, Elise Fouquerel, Dana H Bovbjerg, Patricia L Opresko
There are several different techniques for measuring telomere length, each with their own advantages and disadvantages. The traditional approach, Telomere Restriction Fragment (TRF) analysis, utilizes a DNA hybridization technique whereby genomic DNA samples are digested with restriction enzymes, leaving behind telomere DNA repeats and some sub-telomeric DNA. These are separated by agarose gel electrophoresis, transferred to a filter membrane and hybridized to oligonucleotide probes tagged with either chemiluminescence or radioactivity to visualize telomere restriction fragments...
July 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28714664/iron-doped-nickel-phosphide-nanosheet-arrays-an-efficient-bifunctional-electrocatalyst-for-water-splitting
#3
Pengyan Wang, Zonghua Pu, Yanhui Li, Lin Wu, Zhengkai Tu, Min Jiang, Zongkui Kou, Ibrahim Saana Amiinu, Shichun Mu
Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni2P) nanosheet arrays supported on nickel foam (Ni1.85Fe0.15P NSAs/NF) are fabricated through a facile hydrothermal method followed by phosphorization. The electrochemical analysis demonstrates that the Ni1.85Fe0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni1.85Fe0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm-2 and 270 mV at 20 mA cm-2 to drive hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28714001/lps-enhances-tlr4-expression-and-ifn%C3%A2-%C3%AE-production-via-the-tlr4-irak-nf%C3%A2-%C3%AE%C2%BAb-signaling-pathway-in-rat-pulmonary-arterial-smooth-muscle-cells
#4
Pengyan Wang, Xuhui Han, Biwen Mo, Guojin Huang, Changming Wang
The aim of the present study was to investigate the role of the Toll‑like receptor (TLR)4 signaling pathway in cellular response to lipopolysaccharide (LPS) in rat pulmonary artery smooth muscle cells (PASMCs). Chronic obstructive pulmonary disease (COPD) rats were established with passive inhaling cigarette smoke plus injection of LPS. The TLR4 protein in lung tissues was determined with immunohistochemical staining and protein levels of the components of the TLR4 pathway in PASMCs were analyzed with western blotting...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713501/removal-of-acid-orange-7-dye-from-aqueous-solutions-by-adsorption-onto-kenya-tea-pulps-granulated-shape
#5
Behnaz Naraghi, Fahimeh Zabihi, Mohammad Reza Narooie, Mahdi Saeidi, Hamed Biglari
BACKGROUND AND AIM: Water resources pollution control is one of the main challenges of our time for researchers. Colored wastewater discharges caused by textile industry activities has added to the concern. In this study, removal of Acid Orange 7 dye (AO7) using Kenya Tea residue absorbent (granular) has been studied. METHODS: This cross-sectional study was conducted in 2016. In this work, initially, tea residue was prepared in three forms of raw, treated with concentrated phosphoric acid, and carbonated, at temperatures of 350, 450 and 500 °C in the chemistry laboratory of Gonabad University of Medical Sciences...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28712552/insights-into-head-column-field-amplified-sample-stacking-part-ii-study-of-the-behavior-of-the-electrophoretic-system-after-electrokinetic-injection-of-cationic-compounds-across-a-short-water-plug
#6
Jozef Šesták, Wolfgang Thormann
Part I on head-column field-amplified sample stacking comprised a detailed study of the electrokinetic injection of a weak base across a short water plug into a phosphate buffer at low pH. The water plug is converted into a low conductive acidic zone and cationic analytes become stacked at the interface between this and a newly formed phosphoric acid zone. The fundamentals of electrokinetic processes occurring thereafter were studied experimentally and with computer simulation and are presented as part II. The configuration analyzed represents a discontinuous buffer system...
June 30, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28712337/overall-effect-of-carbon-production-and-nutrient-release-in-sludge-holding-tank-on-mainstream-biological-nutrient-removal-efficiency
#7
Pouria Jabari, Qiuyan Yuan, Jan A Oleszkiewicz
The objective of this study was to assess the potential of hydrolysis/fermentation of activated sludge in sludge holding tank (SHT) to produce additional carbon for biological nutrient removal (BNR) process. The study was conducted in anaerobic batch tests using the BNR sludge (from a full-scale Westside process) and the mixture of BNR sludge with conventional non-BNR activated sludge (to have higher biodegradable particulate COD (bpCOD) in sludge). At different times during the batch tests the nutrient release, filtered COD (FCOD) production and polyphosphate (poly-P) and aerobic phosphorous uptake of sludge were measured...
July 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28711273/treatment-methods-following-suicidal-self-administration-of-iv-organophosphate-what-can-additional-lipid-administration-change
#8
Kenan Ahmet Turkdogan, Ali Duman, Mucahit Avcil, Ayhan Akoz, Selcuk Eren Canakcı, Burcak Kantekin
Organic phosphor compounds are highly toxic and life-threatening compounds that are widely used in agriculture, households and gardens worldwide. While oral intakes are observed frequently, toxic effects can also be seen through contract or inhalation. However, toxic cases through the parenteral route have rarely been reported. We had three main aims: first, to present a male patient who self-administered 2ml of monocrotophos intravenously to commit suicide. Our second goal was to present the current multiple treatment methods, such as fast general support, antidote treatment, lipid emulsion treatment, and plasmapheresis along with the literature...
July 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28709526/mangrove-sediments-reveal-records-of-development-during-the-previous-century-coffs-creek-estuary-australia
#9
Stephen R Conrad, Isaac R Santos, Dylan R Brown, Luciana M Sanders, Michelle L van Santen, Christian J Sanders
A mangrove sediment core was studied to evaluate possible pollution of an urban estuary in Coffs Harbour, Australia. The heavy metal and nutrient profiles revealed a ~2.5-fold enrichment in more recent sediments. Lead-210 dating showed increasing phosphorous (P) and copper (Cu) accumulation following agricultural activity and population growth in the catchment after 1950. In contrast, nitrogen (N) did not show enrichment suggesting no external sources. Mercury (Hg) depositional fluxes and recent enrichment may be associated to an increase in fossil fuel emissions in the region...
July 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28708906/effectiveness-of-periapical-radiography-versus-cone-beam-computed-tomography-with-different-kilovoltage-settings-in-the-detection-of-chemically-created-peri-implant-bone-defects-an-in-vitro-study
#10
Lucas Rodrigues Pinheiro, William C Scarfe, Marcelo Augusto de Oliveira Sales, Bruno Felipe Gaia, Arthur Rodriguez Gonzalez Cortes, Marcelo Gusmão Paraiso Cavalcanti
PURPOSE: To determine the effectiveness of cone beam computed tomography (CBCT) images obtained with different kilovoltage settings compared with intraoral periapical photostimulable storage phosphor (PSP) plate images in the detection of chemically created peri-implant defects utilizing a bovine rib bone model in vitro. MATERIALS AND METHODS: After placing 80 implants in bovine ribs, peri-implant circumferential bone defects of different sizes were created with 70% perchloric acid...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708408/comprehension-of-the-effect-of-a-hydroxyl-group-in-ancillary-ligand-on-phosphorescent-property-for-heteroleptic-ir-iii-complexes-a-computational-study-using-quantitative-prediction
#11
Xiaolin Wang, Huiqing Yang, Yaping Wen, Li Wang, Junfeng Li, Jinglai Zhang
A new Ir(III) complex (dfpypya)2Ir(pic-OH) (2) is theoretically designed by introduction of a simple hydroxyl group into the ancillary ligand on the basis of (dfpypya)2Ir(pic) (1) with the aim to get the high-efficiency and stable blue-emitting phosphors, where dfpypya is 3-methyl-6-(2',4'-difluoro-pyridinato)pyridazine, pic is picolinate, and pic-OH is 3-hydroxypicolinic acid. The other configuration (dfpypya)2Ir(pic-OH)' (3) is also investigated to compare with 2. The difference between 2 and 3 is whether the intramolecular hydrogen bond is formed in the (dfpypya)2Ir(pic-OH)...
July 14, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28708391/enantioselective-synthesis-of-anti-1-2-oxaborinan-3-enes-from-aldehydes-and-1-1-di-boryl-alk-3-enes-using-ruthenium-and-chiral-phosphoric-acid-catalysts
#12
Tomoya Miura, Junki Nakahashi, Wang Zhou, Yota Shiratori, Scott G Stewart, Masahiro Murakami
A cationic ruthenium(II) complex catalyzes double-bond transposition of 1,1-di(boryl)alk-3-enes to generate in situ 1,1-di(boryl)alk-2-enes, which then undergo chiral phosphoric acid-catalyzed allylation of aldehydes producing homoallylic alcohols with a (Z)-vinylboronate moiety. 1,2-Anti stereochemistry is installed in an enantioselective manner. The (Z)-geometry forged in the products allows their isolation in a form of 1,2-oxaborinan-3-enes, upon which further synthetic transformations are operated.
July 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28701415/structure-of-psd-95-map1a-complex-reveals-unique-target-recognition-mode-of-maguk-gk-domain
#13
Yitan Xia, Yuan Shang, Rongguang Zhang, Jinwei Zhu
The PSD-95 family of membrane-associated guanylate kinases (MAGUKs) are major synaptic scaffold proteins and play crucial roles in the dynamic regulation of dendritic remodeling which is understood to be the foundation of synaptogenesis and synaptic plasticity. The guanylate kinase (GK) domain of MAGUK family proteins functions as a phosphor-peptide binding module. However, the GK domain of PSD-95 has been found to directly bind to a peptide sequence within the C-terminal region of neuronal-specific microtubule-associated protein 1A (MAP1A), though the detailed molecular mechanism governing this phosphorylation-independent interaction at the atomic level is missing...
July 12, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28696465/novel-red-emitting-phosphors-a2hff6-mn-4-a-rb-cs-for-solid-state-lighting
#14
Zhaofeng Yang, Qianwen Wei, Meizhu Rong, Zhiyu Yang, Zhengliang Wang, Qiang Zhou, Qin Wang
New red-emitting phosphors A2HfF6:Mn(4+) (A = Rb(+), Cs(+)) with a single phase have been successfully synthesized via a simple ion exchange method, and their structures and luminescence properties were investigated. It was found that Mn(4+) ions in Rb2HfF6 and Cs2HfF6 who share wide band gaps can possess broad excitation bands in the blue regions and intense red emission with internal quantum yields of 0.556 and 0.652, respectively. Meanwhile, these red phosphors exhibit high chemical and thermal stabilities...
July 11, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28695895/corrigendum-synthesis-of-sr2si5n8-ce-3-phosphors-for-white-leds-via-efficient-chemical-vapor-deposition
#15
Che-Yuan Yang, Sudipta Som, Subrata Das, Chung-Hsin Lu
This corrects the article DOI: 10.1038/srep45832.
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28692426/single-crystalline-zno-radial-homojunction-light-emitting-diodes-fabricated-by-metalorganic-chemical-vapour-deposition
#16
Jinkyoung Yoo, Towfiq Ahmed, Wei Tang, Yong-Jin Kim, Young Joon Hong, Chul-Ho Lee, Gyu-Chul Yi
ZnO radial p-n junction architecture has the potential for forward-leap of light-emitting diode technology in terms of higher efficacy and economical production. We report on ZnO radial p-n junction-based light emitting diodes prepared by full metalorganic chemical vapour deposition (MOCVD) with hydrogen-assisted p-type doping approach. The p-type ZnO(P) thin films were prepared by MOCVD with the precursors of dimethylzinc, tert-butanol, and tertiarybutylphosphine. Controlling the precursor flow for dopant results in systematic change of doping concentration, Hall mobility, and electrical conductivity...
July 10, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28691026/quercetin-attenuates-vascular-calcification-through-suppressed-oxidative-stress-in-adenine-induced-chronic-renal-failure-rats
#17
Xue-Ying Chang, Lei Cui, Xing-Zhi Wang, Lei Zhang, Dan Zhu, Xiao-Rong Zhou, Li-Rong Hao
BACKGROUND: This study investigated whether quercetin could alleviate vascular calcification in experimental chronic renal failure rats induced by adenine. METHODS: 32 adult male Wistar rats were randomly divided into 4 groups fed normal diet, normal diet with quercetin supplementation (25 mg/kg·BW/d), 0.75% adenine diet, or adenine diet with quercetin supplementation. All rats were sacrificed after 6 weeks of intervention. Serum renal functions biomarkers and oxidative stress biomarkers were measured and status of vascular calcification in aorta was assessed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28690167/evaluation-of-lignins-from-side-streams-generated-in-an-olive-tree-pruning-based-biorefinery-bioethanol-production-and-alkaline-pulping
#18
José I Santos, Úrsula Fillat, Raquel Martín-Sampedro, María E Eugenio, María J Negro, Ignacio Ballesteros, Alejandro Rodríguez, David Ibarra
In modern lignocellulosic-based biorefineries, carbohydrates can be transformed into biofuels and pulp and paper, whereas lignin is burned to obtain energy. However, a part of lignin could be converted into value-added products including bio-based aromatic chemicals, as well as building blocks for materials. Then, a good knowledge of lignin is necessary to define its valorisation procedure. This study characterized different lignins from side-streams produced from olive tree pruning bioethanol production (lignins collected from steam explosion pretreatment with water or phosphoric acid as catalysts, followed by simultaneous saccharification and fermentation process) and alkaline pulping (lignins recovered from kraft and soda-AQ black liquors)...
July 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28689290/ricinus-communis-l-castor-bean-as-a-potential-candidate-for-revegetating-industrial-waste-contaminated-sites-in-peri-urban-greater-hyderabad-remarks-on-seed-oil
#19
Ravi Kiran Boda, Narasimha Vara Prasad Majeti, Sateesh Suthari
Ricinus communis L. (castor bean or castor oil plant) was found growing on metal-contaminated sites (4) of peri-urban Greater Hyderabad comprises of erstwhile industrial areas viz Bollaram, Patancheru, Bharatnagar, and Kattedan industrial areas. During 2013-2017, about 60 research papers have appeared focusing the role of castor bean in phytoremediation of co-contaminated soils, co-generation of biomaterials, and environmental cleanup, as bioenergy crop and sustainable development. The present study is focused on its use as a multipurpose phytoremediation crop for phytostabilization and revegetation of waste disposed peri-urban contaminated soils...
July 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28688410/a-new-electron-ion-coincidence-3d-momentum-imaging-method-and-its-application-in-probing-strong-field-dynamics-of-2-phenylethyl-n-n-dimethylamine
#20
Lin Fan, Suk Kyoung Lee, Yi-Jung Tu, Benoît Mignolet, David Couch, Kevin Dorney, Quynh Nguyen, Laura Wooldridge, Margaret Murnane, Françoise Remacle, H Bernhard Schlegel, Wen Li
We report the development of a new three-dimensional (3D) momentum-imaging setup based on conventional velocity map imaging to achieve the coincidence measurement of photoelectrons and photo-ions. This setup uses only one imaging detector (microchannel plates (MCP)/phosphor screen) but the voltages on electrodes are pulsed to push both electrons and ions toward the same detector. The ion-electron coincidence is achieved using two cameras to capture images of ions and electrons separately. The time-of-flight of ions and electrons are read out from MCP using a digitizer...
July 7, 2017: Journal of Chemical Physics
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