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https://www.readbyqxmd.com/read/27912120/solvothermal-synthesis-of-ag-hybrid-bipo4-heterostructures-with-enhanced-photodegradation-activity-and-stability
#1
Chang-Wei Huang, Mei-Yao Wu, Yang-Wei Lin
In this study, Ag hybrid BiPO4 (Ag/BiPO4) heterostructures were synthesized using a solvothermal method. The morphologies and optical properties of the Ag/BiPO4 heterostructures were drastically different from those of BiPO4 and were highly dependent on the AgNO3:BiPO4 weight percent during the synthesis. The three formulated heterostructures were evaluated for their photocatalytic degradation of methylene blue (MB) under UV light illumination; the 0.5%Ag/BiPO4 heterostructure was observed to result in 99% degradation of MB within 60min, a remarkably higher level of photodegradation activity than the levels caused by TiO2 and BiPO4...
November 22, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27911375/fabrication-of-white-light-emitting-electrochemical-cells-with-stable-emission-from-exciplexes
#2
Soichi Uchida, Daisuke Takizawa, Satoru Ikeda, Hironori Takeuchi, Suzushi Nishimura, Hiroyuki Nishide, Yoshinori Nishikitani
The authors present an approach for fabricating stable white light emission from polymer light-emitting electrochemical cells (PLECs) having an active layer which consists of blue-fluorescent poly(9,9-di-n-dodecylfluorenyl-2,7-diyl) (PFD) and π-conjugated triphenylamine molecules. This white light emission originates from exciplexes formed between PFD and amines in electronically excited states. A device containing PFD, 4,4',4''-tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA), Poly(ethylene oxide) and K2CF3SO3 showed white light emission with Commission internationale de l'éclairage (CIE) coordinates of (0...
November 15, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910659/the-multi-spectral-line-polarization-mse-system-on-alcator-c-mod
#3
R T Mumgaard, S D Scott, M Khoury
A multi-spectral line-polarization motional Stark effect (MSE-MSLP) diagnostic has been developed for the Alcator C-Mod tokamak wherein the Stokes vector is measured in multiple wavelength bands simultaneously on the same sightline to enable better polarized background subtraction. A ten-sightline, four wavelength MSE-MSLP detector system was designed, constructed, and qualified. This system consists of a high-throughput polychromator for each sightline designed to provide large étendue and precise spectral filtering in a cost-effective manner...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910176/visible-light-accelerated-c-h-sulfinylation-of-heteroarenes
#4
Andreas Uwe Meyer, Alexander Wimmer, Burkhard König
Heteroaromatic sulfoxides are a frequent structural motif in natural products, drugs, catalysts, and materials. We report a metal-free visible-light-accelerated synthesis of heteroaromatic sulfoxides from sulfinamides and peroxodisulfate. The reaction proceeds at room temperature with blue-light irradiation and allows the C-H sulfinylation of electron-rich heteroarenes, such as pyrroles and indoles. An electrophilic aromatic substitution mechanism is proposed based on the substrate scope, substitution selectivity, and competition experiments with different nucleophiles...
December 2, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27908111/nuclear-quantum-effects-in-a-hiv-cancer-inhibitor-the-case-of-ellipticine
#5
Subrahmanyam Sappati, Ali Hassanali, Ralph Gebauer, Prasenjit Ghosh
Ellipticine is a natural product that is currently being actively investigated for its inhibitory cancer and HIV properties. Here we use path-integral molecular dynamics coupled with excited state calculations to characterize the role of nuclear quantum effects on the structural and electronic properties of ellipticine in water, a common biological solvent. Quantum effects collectively enhance the fluctuations of both light and heavy nuclei of the covalent and hydrogen bonds in ellipticine. In particular, for the ellipticine-water system, where the proton donor and acceptor have different proton affinities, we find that nuclear quantum effects (NQEs) strengthen both the strong and the weak H bonds...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27906378/cool-white-light-emitting-three-stack-oled-structures-for-amoled-display-applications
#6
Ramon Springer, Byoung Yeop Kang, Raju Lampande, Dae Hyun Ahn, Simone Lenk, Sebastian Reineke, Jang Hyuk Kwon
This paper demonstrates 2-stack and 3-stack white organic light-emitting diodes (WOLEDs) with fluorescent blue and phosphorescent yellow emissive units. The 2-stack and 3-stack WOLED comprises blue-yellow and blue-blue-yellow (blue-yellow-blue) combinations. The position of the yellow emitter and possible cavity lengths in different stack architectures are theoretically and experimentally investigated to reach Commission Internationale de L'Eclairage (CIE) coordinates of near (0.333/0.333). Here, a maximum external quantum efficiency (EQE) of 23...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27905012/microbial-proteins-as-novel-industrial-biotechnology-hosts-to-treat-epilepsy
#7
REVIEW
Zareen Amtul, Amal A Aziz
Epilepsy is characterized by the hyperexcitability of various neuronal circuits that results due to the imbalance between glutamate-mediated excitation of voltage-gated cation channels and γ-amino butyric acid (GABA)-mediated inhibition of anion channels leading to aberrant, sporadic oscillations or fluctuations in neuronal electrical activity. Epilepsy with a risk of mortality and around 65 million sufferers of all ages all over the world is limited therapeutically with high rates of adverse reactions, lack of complete seizure control, and over 30% patients with refractory epilepsy...
December 1, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27904491/intravenous-transplantation-of-mouse-embryonic-stem-cells-attenuates-demyelination-in-an-icr-outbred-mouse-model-of-demyelinating-diseases
#8
Kidsadagon Pringproa, Anucha Sathanawongs, Chananthida Khamphilai, Sarocha Sukkarinprom, Apichart Oranratnachai
Induction of demyelination in the central nervous system (CNS) of experimental mice using cuprizone is widely used as an animal model for studying the pathogenesis and treatment of demyelination. However, different mouse strains used result in different pathological outcomes. Moreover, because current medicinal treatments are not always effective in multiple sclerosis patients, so the study of exogenous cell transplantation in an animal model is of great importance. The aims of the present study were to establish an alternative ICR outbred mouse model for studying demyelination and to evaluate the effects of intravenous cell transplantation in the present developed mouse model...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27904399/identification-of-alleles-of-puroindoline-genes-and-their-effect-on-wheat-triticum-aestivum-l-grain-texture
#9
Mária Presinszká, Klára Štiasna, Tomáš Vyhnánek, Václav Trojan, Eva Mrkvicová, Luděk Hřivna, Ladislav Havel
Grain hardness is one of the most important quality characteristics of wheat (Triticum aestivum L.). It is a significant property of wheat grains and relates to milling quality and end product quality. Grain hardness is caused by the presence of puroindoline genes (Pina and Pinb). A collection of 25 genotypes of wheat with unusual grain colour (blue aleurone, purple and white pericarp, yellow endosperm) was studied by polymerase chain reaction (PCR) for the diversity within Pina and Pinb (alleles: Pina-D1a, Pina-D1b, Pinb-D1a, Pinb- -D1b, Pinb-D1c and Pinb-D1d)...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27902781/correction-influence-of-light-emitting-diode-derived-blue-light-overexposure-on-mouse-ocular-surface
#10
Hyo Seok Lee, Lian Cui, Ying Li, Ji Suk Choi, Joo-Hee Choi, Zhengri Li, Ga Eon Kim, Won Choi, Kyung Chul Yoon
[This corrects the article DOI: 10.1371/journal.pone.0161041.].
2016: PloS One
https://www.readbyqxmd.com/read/27901534/structure-simplified-and-highly-efficient-deep-blue-organic-light-emitting-diodes-with-reduced-efficiency-roll-off-at-extremely-high-luminance
#11
Xiang-Long Li, Ming Liu, Yunchuan Li, Xinyi Cai, Dongcheng Chen, Kunkun Liu, Yong Cao, Shi-Jian Su
Based on a series of new fluorescent emitters, deep blue non-doped multilayer OLEDs with EQEs exceeding 5.10% and single layer devices excluding any charge carrier transporting materials with an EQE of 4.22% were obtained at an extremely high luminance of 10 000 cd m(-2).
November 30, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27901529/a-cationic-iridium-complex-meets-an-electron-transporting-counter-anion-enhanced-performances-of-solution-processed-phosphorescent-light-emitting-diodes
#12
Ningzi Luo, Ying Lan, Ruiren Tang, Lei He, Lian Duan
An electron-transporting counter-anion, OXD-7-SO3(-), was developed for a blue-green-emitting cationic iridium complex, which showed superior device performance in solution-processed phosphorescent light-emitting diodes over its counterpart complex with a PF6(-) counter-anion, due to the facilitated electron-injection/transport and more balanced carrier recombination imparted by OXD-7-SO3(-).
November 30, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27900511/non-doped-deep-blue-and-doped-white-electroluminescence-devices-based-on-phenanthroimidazole-derivative
#13
Shuo Chen, Yukun Wu, Shoucheng Hu, Yi Zhao, Daining Fang
A novel deep-blue emitter PhImPOTD based on phenathroimidazole was synthesized, which is incorporated by an electron-donating dibenzothiophene unit and electron-withdrawing phenanthroimidazole and diphenylphosphine oxide moieties. Furthermore, the weak π-π stacking and intermolecular aggregation render the photoluminescence quantum yield is as high as 0.34 in the solid state. Non-doped organic light emitting diodes (OLEDs) based on PhImPOTD emitter exhibits a low turn-on voltage of 3.6 V, a favorable efficiency of 1...
November 29, 2016: Journal of Fluorescence
https://www.readbyqxmd.com/read/27900385/aggregation-enhanced-emission-active-tetraphenylbenzene-cored-efficient-blue-light-emitter
#14
Lingzhi Li, Han Nie, Ming Chen, Jingzhi Sun, Anjun Qin, Ben Zhong Tang
A tetraphenylbenzene (TPB) cored luminophore of TPB-AC with aggregation-enhanced emission characteristics was designed and synthesized. TPB-AC could be potentially applied for the fabrication of high performance organic light-emitting diodes (OLEDs) with blue light emission.
November 30, 2016: Faraday Discussions
https://www.readbyqxmd.com/read/27897985/a-novel-lighting-oled-panel-design
#15
Enyang Zhang, Weigao Xia, Xiaojian Yan
A novel OLED (organic light emitting diode) lighting panel, which uses a special layout design, can reduce the photolithography cycles and process costs and is more reliable. It only needs two steps of photolithography cycles, which include an ITO (InSnO compound transparent oxide) pattern and insulator pattern. There is no need for the metal bus pattern of the ordinary design. The OLED device structure is a type of red-green-blue (RGB)-stacked emitting layer that has a good color index and greater adjustability, which improves the performance of the device...
November 25, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27897139/influence-of-electromechanical-coupling-on-optical-properties-of-ingan-quantum-dot-based-light-emitting-diodes
#16
Daniele Barettin, Matthias Auf der Maur, Aldo di Carlo, Alessandro Pecchia, Andrei F Tsatsulnikov, Alexei V Sakharov, Wsevolod V Lundin, Andrei E Nikolaev, Sergey O Usov, Nikolay Cherkashin, Martin J Hÿtch, Sergey Yu Karpov
The impact of electromechanical coupling on optical properties of light-emitting diodes (LEDs) with InGaN/GaN quantum-dot (QD) active regions is studied by numerical simulations. The structure, i.e. the shape and the average In content of the QDs, has been directly derived from experimental data on out-of-plane strain distribution obtained from the geometric-phase analysis of a high-resolution transmission electron microscopy image of an LED structure grown by metalorganic vapor-phase epitaxy. Using continuum [Formula: see text] calculations, we have studied first the lateral and full electromechanical coupling between the QDs in the active region and its impact on the emission spectrum of a single QD located in the center of the region...
November 29, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27896017/simple-approach-to-three-color-two-photon-microscopy-by-a-fiber-optic-wavelength-convertor
#17
Kuen-Che Li, Lynn L H Huang, Jhih-Hao Liang, Ming-Che Chan
A simple approach to multi-color two-photon microscopy of the red, green, and blue fluorescent indicators was reported based on an ultra-compact 1.03-μm femtosecond laser and a nonlinear fiber. Inside the nonlinear fiber, the 1.03-μm laser pulses were simultaneously blue-shifted to 0.6~0.8 μm and red-shifted to 1.2~1.4 μm region by the Cherenkov radiation and fiber Raman gain effects. The wavelength-shifted 0.6~0.8 μm and 1.2~1.4 μm radiations were co-propagated with the residual non-converted 1.03-μm pulses inside the same nonlinear fiber to form a fiber-output three-color femtosecond source...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27893779/rapid-recovery-of-visual-function-associated-with-blue-cone-ablation-in-zebrafish
#18
Gordon F Hagerman, Nicole C L Noel, Sylvia Y Cao, Michèle G DuVal, A Phillip Oel, W Ted Allison
Hurdles in the treatment of retinal degeneration include managing the functional rewiring of surviving photoreceptors and integration of any newly added cells into the remaining second-order retinal neurons. Zebrafish are the premier genetic model for such questions, and we present two new transgenic lines allowing us to contrast vision loss and recovery following conditional ablation of specific cone types: UV or blue cones. The ablation of each cone type proved to be thorough (killing 80% of cells in each intended cone class), specific, and cell-autonomous...
2016: PloS One
https://www.readbyqxmd.com/read/27893522/zone-i-of-tear-microdesiccates-is-a-lipid-containing-structure
#19
Felipe Traipe, Leonidas Traipe, Daniela Salinas-Toro, Daniela López, Felipe Valenzuela, Claudio Pérez, Cristian Cartes, Francisca Zuazo, Patricia Varela, Héctor Toledo-Araya, Remigio López-Solís
PURPOSE: Morphological features of tear microdesiccates on glass surfaces have been associated with tear fluid status. Tear-film lipids play a critical role in the pathophysiology of some ocular surface disorders. Tear microdesiccates display 4 distinctive morphological domains (zones I, II, III, and transition band). In this study, we investigated the lipid location in tear microdesiccates. METHODS: Tear from individual healthy eyes (assessed by symptoms, signs, and slit-lamp examination) was collected using absorbing minisponges...
November 23, 2016: Cornea
https://www.readbyqxmd.com/read/27893348/cost-utility-and-budget-impact-of-methylene-blue-treated-plasma-compared-to-quarantine-plasma
#20
Joseph B Babigumira, Solomon J Lubinga, Emma Castro, Brian Custer
BACKGROUND: Methylene blue and visible light treatment and quarantine are two methods used to reduce adverse events, mostly infections, associated with the transfusion of fresh-frozen plasma. The objective of this study was to estimate and compare the budget impact and cost-utility of these two methods from a payer's perspective. MATERIALS AND METHODS: A budget impact and cost-utility model simulating the risks of hepatitis B virus, hepatitis C virus, cytomegalovirus, a West Nile virus-like infection, allergic reactions and febrile non-haemolytic transfusion reactions achieved using plasma treated with methylene blue and visible light (MBP) and quarantine plasma (QP) was constructed for Spain...
November 16, 2016: Blood Transfusion, Trasfusione del Sangue
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