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https://www.readbyqxmd.com/read/28335223/ultraviolet-plasmonic-aluminium-nanoparticles-for-highly-efficient-light-incoupling-on-silicon-solar-cells
#1
Yinan Zhang, Boyuan Cai, Baohua Jia
Plasmonic metal nanoparticles supporting localized surface plasmon resonances have attracted a great deal of interest in boosting the light absorption in solar cells. Among the various plasmonic materials, the aluminium nanoparticles recently have become a rising star due to their unique ultraviolet plasmonic resonances, low cost, earth-abundance and high compatibility with the complementary metal-oxide semiconductor (CMOS) manufacturing process. Here, we report some key factors that determine the light incoupling of aluminium nanoparticles located on the front side of silicon solar cells...
May 24, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334646/defluoridation-of-drinking-water-using-a-new-flow-column-electrocoagulation-reactor-fcer-experimental-statistical-and-economic-approach
#2
Khalid S Hashim, Andy Shaw, Rafid Al Khaddar, Montserrat Ortoneda Pedrola, David Phipps
A new batch, flow column electrocoagulation reactor (FCER) that utilises a perforated plate flow column as a mixer has been used to remove fluoride from drinking water. A comprehensive study has been carried out to assess its performance. The efficiency of fluoride removal (R%) as a function of key operational parameters such as initial pH, detention time (t), current density (CD), inter-electrode distance (ID) and initial concentration (C0) has been examined and an empirical model has been developed. A scanning electron microscopy (SEM) investigation of the influence of the EC process on morphology of the surface of the aluminium electrodes, showed the erosion caused by aluminium loss...
March 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28332486/fabrication-of-the-flexible-highly-ordered-porous-alumina-templates-by-the-combined-nanosphere-lithography-and-anodization
#3
Michal Krupinski, Marcin Perzanowski, Alexey Maximenko, Yevhen Zabila, Marta Marszalek
In this work, we propose a new method for a large-scale production of flexible, periodic alumina arrays with well-ordered pores. We show the incorporation of pre-patterning based on a polystyrene (PS) nanosphere lithography into aluminium anodization process. We prepared ordered monolayers of PS spheres with average diameters of (510 ± 10) nm, and (430 ± 10) nm on a large area (1.5 x 1.5 cm<sup>2</sup>) of the Si substrate. Next, we deposited the 5 μm aluminium layer on arrays of PS nanospheres using the sputtering technique...
March 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28332421/dietary-exposure-to-aluminum-in-the-popular-chinese-fried-bread-youtiao
#4
Ge Li, Xue Zhao, Shimin Wu, Hongying Hua, Qiang Wang, Zhiheng Zhang
Youtiao is a typical, traditional, and widely consumed fried food in China. Fermentation of Youtiao involves the use of aluminium potassium sulphate (alum). There are health concerns related to the levels of aluminium in food; therefore, we aimed to determine the aluminium concentrations of Youtiao from various locations, and estimate the dietary exposure by different age groups in Southern and Northern China. The aluminium content of Youtiao samples varied considerably (range: 4.46 to 852.69 mg.kg(-1)). Both the mean and median aluminium contents of Youtiao exceeded 100 mg...
March 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28330755/microwave-assisted-modification-of-cellulose-by-gallic-acid-and-its-application-for-removal-of-aluminium-from-real-samples
#5
W I Mortada, I M M Kenawy, Y G Abou El-Reash, A A Mousa
Microwave assisted preparation of cellulose modified with Gallic acid (MA-Cell-GA) was developed for high efficient adsorption of Al(3+). The as-prepared modified cellulose has been characterized by elemental analysis, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta potential measurements. Energy dispersive X-ray (EDX) spectrum was utilized to proof the adsorption of Al(3+). The effect of various experimental factors, as pH, amount of adsorbent, shaking time, initial metal ion concentration, temperature, concomitant ions and desorption conditions on the extraction efficiency was investigated and optimized in batch mode experiments...
March 19, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28330352/thermal-conductivity-of-the-sideledge-in-aluminium-electrolysis-cells-experiments-and-numerical-modelling
#6
Aïmen E Gheribi, Sándor Poncsák, Sébastien Guérard, Jean-François Bilodeau, László Kiss, Patrice Chartrand
During aluminium electrolysis, a ledge of frozen electrolytes is generally formed, attached to the sides of the cells. This ledge acts as a protective layer, preventing erosion and chemical attacks of both the electrolyte melt and the liquid aluminium on the side wall materials. The control of the sideledge thickness is thus essential in ensuring a reasonable lifetime for the cells. The key property for modelling and predicting the sideledge thickness as a function of temperature and electrolyte composition is the thermal conductivity...
March 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28330267/treatment-of-landfill-leachate-using-asbr-combined-with-zeolite-adsorption-technology
#7
Chi Kim Lim, Ta Wee Seow, Chin Hong Neoh, Muhamad Hanif Md Nor, Zaharah Ibrahim, Ismail Ware, Siti Hajar Mat Sarip
Sanitary landfilling is the most common way to dispose solid urban waste; however, improper landfill management may pose serious environmental threats through discharge of high strength polluted wastewater also known as leachate. The treatment of landfill leachate to fully reduce the negative impact on the environment, is nowadays a challenge. In this study, an aerobic sequencing batch reactor (ASBR) was proposed for the treatment of locally obtained real landfill leachate with initial ammoniacal nitrogen and chemical oxygen demand (COD) concentration of 1800 and 3200 mg/L, respectively...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328142/enhanced-spatial-resolution-in-vector-potential-photoelectron-microscopy
#8
R Browning
The spatial resolution of the vector potential photoelectron microscope is determined by the maximum size of the cyclotron orbits of the imaged electrons at the surface of a sample. It is straightforward to calculate the spatial resolution for any imaged electron energy given the magnetic field strength. However, in low-energy secondary photoelectron images from an aluminium-calcium metal matrix alloy, we find the apparent spatial resolution is significantly higher than expected. A possible explanation for the enhanced resolution is that the low-energy cyclotron orbits are distorted when passing from one area of work function to another and the image is dependent on the surface field distribution...
March 22, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28319826/oil-based-adjuvants-delivered-intradermally-induce-high-primary-igg2-immune-response-in-swine
#9
Zrinka Oreskovic, Hana Kudlackova, Josef Krejci, Katerina Nechvatalova, Martin Faldyna
The effects of intradermal application of antigen with or without different adjuvants and activation of immune response are presented in this study. Six groups of six piglets each were immunized with keyhole limpet haemocyanin (KLH) antigen in combination with aluminium hydroxide or oil-based adjuvants (complete and incomplete Freund's adjuvants, Montanide ISA 206 and Emulsigen). IgG1 and IgG2 levels in sera were measured by KLH-specific ELISA. Interestingly, oil-based adjuvants induced high primary IgG2 response, suggesting the Th1 lymphocyte polarization...
March 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28317885/efficacy-of-alginate-based-reflux-suppressant-and-magnesium-aluminium-antacid-gel-for-treatment-of-heartburn-in-pregnancy-a-randomized-double-blind-controlled-trial
#10
Pontip Meteerattanapipat, Vorapong Phupong
The aim of this study was to compare the therapeutic efficacy of alginate-based reflux suppressant and magnesium-aluminium antacid gel for treatment of heartburn in pregnancy. A double-blinded, randomized, controlled trial was conducted. One hundred pregnant women at less than 36 weeks gestation with heartburn at least twice per week were randomized to either alginate-based reflux suppressant or to magnesium-aluminium antacid gel. Details of heartburn were recorded before beginning the treatment and the second week of study...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316805/new-mixed-aluminium-chromium-diarsenate
#11
Mohamad Alem Bouhassine, Habib Boughzala
Potassium chromium aluminium diarsenate, KCr1/4Al3/4As2O7, was prepared by solid-state reaction. The structure consists of (Cr1/4/Al3/4)O6 octa-hedra and As2O7 diarsenate groups sharing corners to build up a three-dimensional anionic framework. The potassium cations are located in wide channels running along the c-axis direction. The crystal structure is isostructural with the triclinic A(I)M(III)X2O7 (A(I) = alkali metal; M(III) = Al, Cr, Fe; X = As, P) compounds. However, the M(III) octa-hedrally coordinated site is 25% partially occupied by chromium and 75% by aluminium...
March 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28315385/a-study-on-the-in-vitro-percutaneous-absorption-of-silver-nanoparticles-in-combination-with-aluminum-chloride-methyl-paraben-or-di-n-butyl-phthalate
#12
Katarzyna Domeradzka-Gajda, Marek Nocuń, Joanna Roszak, Beata Janasik, C Derrick Quarles, Wojciech Wąsowicz, Jarosław Grobelny, Emilia Tomaszewska, Grzegorz Celichowski, Katarzyna Ranoszek-Soliwoda, Małgorzata Cieślak, Dorota Puchowicz, Jhanis J Gonzalez, Richard E Russo, Maciej Stępnik
Some reports indicate that the silver released from dermally applied products containing silver nanoparticles (AgNP) (e.g. wound dressings or cosmetics) can penetrate the skin, particularly if damaged. AgNP were also shown to have cytotoxic and genotoxic activity. In the present study percutaneous absorption of AgNP of two different nominal sizes (Ag15nm or Ag45nm by STEM) and surface modification, i.e. citrate or PEG stabilized nanoparticles, in combination with cosmetic ingredients, i.e. aluminum chloride (AlCl3), methyl paraben (MPB), or di-n-butyl phthalate (DBPH) was assessed using in vitro model based on dermatomed pig skin...
March 14, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28314392/combining-simplicity-with-cost-effectiveness-investigation-of-potential-counterfeit-of-proton-pump-inhibitors-through-simulated-formulations-using-thin-layer-chromatography
#13
Nejal M Bhatt, Vijay D Chavada, Mallika Sanyal, Pranav S Shrivastav
A simple, accurate and precise high-performance thin-layer chromatographic method has been developed and validated for the analysis of proton pump inhibitors (PPIs) and their co-formulated drugs, available as binary combination. Planar chromatographic separation was achieved using a single mobile phase comprising of toluene: iso-propranol: acetone: ammonia 5.0:2.3:2.5:0.2 (v/v/v/v) for the analysis of 14 analytes on aluminium-backed layer of silica gel 60 FG254. Densitometric determination of the separated spots was done at 290nm...
November 18, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28314180/tetra-2-3-pyrazinoporphyrazines-with-externally-appended-pyridine-rings-17-photosensitizing-properties-and-cellular-effects-of-zn-ii-octacationic-and-zn-ii-pt-ii-hexacationic-macrocycles-in-aqueous-media-perspectives-of-multimodal-anticancer-potentialities
#14
Elisa Viola, Maria Pia Donzello, Fabiola Sciscione, Kous Shah, Claudio Ercolani, Giuseppe Trigiante
The photosensitizing activity of two multiply charged porphyrazine derivatives, i.e. the Zn(II) species [(CH3)8LZn](8+) and the Zn(II)/Pt(II) heterobimetallic complex [(PtCl2)(CH3)6LZn](6+) (neutralized byI(-) ions; L=tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion) has been examined in the water medium in the presence of SDS under experimental conditions in which the two species are present exclusively in their monomeric form. The determined quantum yield values (ΦΔ) for both complexes, of interest in photodynamic therapy (PDT), are 2...
March 9, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28302762/brain-fdg-pet-metabolic-abnormalities-in-macrophagic-myofasciitis-are-they-stable
#15
Paul Blanc-Durand, Axel Van Der Gucht, Mehdi Aoun Sebaiti, Mukedaisi Abulizi, Francois-Jérome Authier, Emmanuel Itti
We address this letter in addition to our recent published study (1). The aim is to add some insight to the evolution of the brain abnormalities that are observed with macrophagic myofasciitis (MMF). MMF is a chronic disease whom evolution is slow and symptoms first may occurs from months to year after a vaccination containing aluminium hydroxid adjuvants (2). Nevertheless, its evolution is not fully understood or known. MMF associated cognitive dysfunction (MACD) is based on a tripod combining dysexecutive syndrom, visual memory impairment and interhemispheric disconnection...
March 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28302523/evaluation-of-performance-indicators-applied-to-a-material-recovery-facility-fed-by-mixed-packaging-waste
#16
Maria Laura Mastellone, Raffaele Cremiato, Lucio Zaccariello, Roberta Lotito
Most of the integrated systems for municipal solid waste management aim to increase the recycling of secondary materials by means of physical processes including sorting, shredding and reprocessing. Several restrictions prevent from reaching a very high material recycling efficiency: the variability of the composition of new-marketed materials used for packaging production and its shape and complexity are critical issues. The packaging goods are in fact made of different materials (aluminium, polymers, paper, etc...
March 14, 2017: Waste Management
https://www.readbyqxmd.com/read/28301479/ligb-subunit-vaccine-confers-sterile-immunity-against-challenge-in-the-hamster-model-of-leptospirosis
#17
Neida L Conrad, Flávia W Cruz McBride, Jéssica D Souza, Marcelle M Silveira, Samuel Félix, Karla S Mendonça, Cleiton S Santos, Daniel A Athanazio, Marco A Medeiros, Mitermayer G Reis, Odir A Dellagostin, Alan J A McBride
Neglected tropical diseases, including zoonoses such as leptospirosis, have a major impact on rural and poor urban communities, particularly in developing countries. This has led to major investment in antipoverty vaccines that focus on diseases that influence public health and thereby productivity. While the true, global, impact of leptospirosis is unknown due to the lack of adequate laboratory diagnosis, the WHO estimates that incidence has doubled over the last 15 years to over 1 million cases that require hospitalization every year...
March 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28300159/structure-zone-diagram-and-particle-incorporation-of-nickel-brush-plated-composite-coatings
#18
L Isern, S Impey, H Almond, S J Clouser, J L Endrino
This work studies the deposition of aluminium-incorporated nickel coatings by brush electroplating, focusing on the electroplating setup and processing parameters. The setup was optimised in order to increase the volume of particle incorporation. The optimised design focused on increasing the plating solution flow to avoid sedimentation, and as a result the particle transport experienced a three-fold increase when compared with the traditional setup. The influence of bath load, current density and the brush material used was investigated...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28297947/monte-carlo-approach-to-calculate-ionization-dynamics-of-hot-solid-density-plasmas-within-particle-in-cell-simulations
#19
D Wu, X T He, W Yu, S Fritzsche
A physical model based on a Monte Carlo approach is proposed to calculate the ionization dynamics of hot-solid-density plasmas within particle-in-cell (PIC) simulations, and where the impact (collision) ionization (CI), electron-ion recombination (RE), and ionization potential depression (IPD) by surrounding plasmas are taken into consideration self-consistently. When compared with other models, which are applied in the literature for plasmas near thermal equilibrium, the temporal relaxation of ionization dynamics can also be simulated by the proposed model...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28292696/influence-of-low-level-laser-therapy-on-the-healing-of-human-bone-maxillofacial-defects-a-systematic-review
#20
Carolina Dos Santos Santinoni, Hiskell Francine Fernandes Oliveira, Victor Eduardo de Souza Batista, Cleidiel Aparecido Araujo Lemos, Fellippo Ramos Verri
PURPOSE: This systematic review evaluates the effectiveness of low-level laser therapy (LLLT) to enhance maxillofacial area bone repair. METHODS: A comprehensive search of studies published up to February 2017 and listed in PubMed/MEDLINE, Scopus, and Cochrane Library databases was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. RESULTS: The 15 selected studies evaluated a total of 374 patients (mean age, 28...
March 7, 2017: Journal of Photochemistry and Photobiology. B, Biology
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