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https://www.readbyqxmd.com/read/29136809/highly-selective-detection-of-phosphate-ion-based-on-a-single-layered-graphene-quantum-dots-al-3-strategy
#1
Bin Bin Chen, Rong Sheng Li, Meng Li Liu, Hong Yan Zou, Hui Liu, Cheng Zhi Huang
Determination of phosphate ion (PO4(3-)) is important in biomedical and environmental arrays because its controlling concentrations are associated with different pathologies or the quality of water. Herein, we report a new type of photoluminescence (PL) probe for highly selective detection of PO4(3-) based on a single-layered graphene quantum dots chelating with aluminium ions (s-GQDs-Al(3+)) system. The PL of s-GQDs can be enhanced by Al(3+) through the aggregation-induced emission enhancement (AIEE) effect...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136586/generalised-two-dimensional-correlation-analysis-of-the-co-ce-and-pd-mixed-oxide-catalytic-systems-for-methane-combustion-using-in-situ-infrared-spectroscopy
#2
Damian K Chlebda, Przemysław J Jodłowski, Roman J Jędrzejczyk, Joanna Łojewska
The process of methane combustion over the surface of a catalyst is still not fully understood. The identification of the reaction path and the intermediates created during catalysis is crucial for understanding the transformation of methane molecules. Two-dimensional (2D) correlation spectroscopy was engaged as a tool for the quantitative analysis of a series of temperature-dependent infrared spectra registered in situ during methane combustion. The prepared samples of catalysts were based on a Co, Pd and Ce mixed oxide adsorbed on an aluminium oxide layer deposited on kanthal steel...
November 8, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29133104/imparting-functionality-viz-color-antioxidant-and-antibacterial-properties-to-develop-multifunctional-wool-with-tectona-grandis-leaves-extract-using-reflectance-spectroscopy
#3
Shahid-Ul-Islam, Shahnawaz Ahmad Wani, Faqeer Mohammad
In recent years, considerable attention has been given to plant colorants for use in dyeing applications because of their newly discovered properties such as insect repellency, deodorizing, antioxidant, sun protection, and antibacterial activity. In view of their better biocompatibility, biodegradability, less-toxicity, natural colorants are gaining worldwide interest for producing elegant hues and highly functional value-added textiles. In the present work, we investigated the coloring and functional finishing of wool with Tectona grandis L leaves extract with the emphasis on effect of metallic salt mordants on colorimetric potential, fastness, radical scavenging potential, and antibacterial activity in an attempt to develop bioactive fibres for use in health care applications...
November 10, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29128442/urinary-excretion-of-aluminium-and-silicon-in-secondary-progressive-multiple-sclerosis
#4
Krista Jones, Caroline Linhart, Clive Hawkins, Christopher Exley
BACKGROUND: Progressive multiple sclerosis is a chronic autoimmune condition of unknown aetiology and few therapeutic options. Human exposure to aluminium has been linked with multiple sclerosis and affected individuals are known to excrete unusually high amounts of aluminium in their urine. Silicon-rich mineral waters facilitate the removal of aluminium from the body in urine and herein we have tested their efficacy in affecting urinary excretion of aluminium in individuals diagnosed with secondary progressive multiple sclerosis (SPMS)...
November 1, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29116186/self-lubricating-al-ws2-composites-for-efficient-and-greener-tribological-parts
#5
Vlad Bogdan Niste, Monica Ratoi, Hiroyoshi Tanaka, Fang Xu, Yanqiu Zhu, Joichi Sugimura
Due to their mechanical and physical properties, aluminium alloys possess wide potential in the automotive industry, particularly in hot reciprocating applications such as pistons for diesel and petrol engines. WS2 particle-reinforced composites could bring further improvements by reducing friction and wear between moving parts. Reducing friction improves efficiency by lowering energy/fuel use, ultimately leading to lower greenhouse gas emissions, while antiwear properties can prolong component life. This study compares for the first time the tribological performance of powder metallurgy-consolidated Al composites reinforced with either IF- or 2H-WS2 particles, so as to elucidate their mechanism of action in test conditions similar to those encountered in engine applications...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29111516/an-arsenate-with-the-%C3%AE-crpo4-structure-type-naca1-xni3-2xal2x-aso4-3-x-0-23-crystal-structure-charge-distribution-and-bond-valence-sum-analyses
#6
Ridha Ben Smail, Mohamed Faouzi Zid
Since the discovery of electrochemically active LiFePO4, materials with tunnel and layered structures built up of transition metals and polyanions have become the subject of much research. A new quaternary arsenate, sodium calcium trinickel aluminium triarsenate, NaCa1-xNi3-2xAl2x(AsO4)3 (x = 0.23), was synthesized using the flux method in air at 1023 K and its crystal structure was determined from single-crystal X-ray diffraction (XRD) data. This material was also characterized by qualitative energy-dispersive X-ray spectroscopy (EDS) analysis and IR spectroscopy...
November 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/29111130/effect-of-sandblasting-and-enamel-deproteinization-on-shear-bond-strength-of-resin-modified-glass-ionomer
#7
Nadine Hamdane, Roland Kmeid, Elie Khoury, Joseph Ghoubril
INTRODUCTION: The purpose of this study was to compare, in vitro, the shear bond strength of resin-modified glass ionomer (RMGI) bonded to an enamel surface prepared by either sandblasting with 50μm of aluminium oxide particles, deproteinization with 5.25% NaOCl, or by combining both techniques. MATERIAL AND METHODS: One hundred and fifty human premolars were cleaned and randomly divided into five groups. In group 1, the teeth were etched using 37% phosphoric acid and bonded with Transbond XT...
October 27, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29102842/impacts-of-zeolite-alum-and-polyaluminum-chloride-amendments-mixed-with-agricultural-wastes-on-soil-column-leachate-and-co2-and-ch4-emissions
#8
J G Murnane, O Fenton, M G Healy
This study aimed to quantify leaching losses of nitrogen (N), phosphorus (P) and carbon (C), as well as carbon dioxide (CO2) and methane (CH4) emissions from stored slurry, and from packed soil columns surface applied with unamended and chemically amended dairy and pig slurries, and dairy soiled water (DSW). The amendments to the slurries, which were applied individually and together, were: polyaluminum chloride (PAC) and zeolite for pig and dairy slurry, and liquid aluminium sulfate (alum) and zeolite for DSW...
November 2, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29101278/altered-expression-of-a-malate-permeable-anion-channel-osalmt4-disrupts-mineral-nutrition
#9
Jie Liu, Meixue Zhou, Emmanuel Delhaize, Peter R Ryan
Aluminium-activated malate transporters (ALMT) form a family of anions channels in plants but little is known about most of its members. This study examined the function of OsALMT4 from rice (Oryza sativa L.). We show that OsALMT4 is expressed in roots and shoots and the OsALMT4 protein localizes to the plasma membrane. Transgenic rice lines over-expressing (OX) OsALMT4 released malate from the roots constitutively and had two-fold higher malate concentrations in the xylem sap than nulls indicating greater concentrations of malate in the apoplast...
November 3, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29099812/effects-of-nano-aluminum-nitride-on-the-performance-of-an-ultrahigh-temperature-inorganic-phosphate-adhesive-cured-at-room-temperature
#10
Chengkun Ma, Hailong Chen, Chao Wang, Jifeng Zhang, Hui Qi, Limin Zhou
Based on the optimal proportion of resin and curing agent, an ultrahigh-temperature inorganic phosphate adhesive was prepared with aluminum dihydric phosphate, aluminium oxide ( α -Al₂O₃), etc. and cured at room temperature (RT). Then, nano-aluminum nitride (nano-AlN), nano-Cupric oxide (nano-CuO), and nano-titanium oxide (nano-TiO₂) were added into the adhesive. Differential scanning calorimetry was conducted using the inorganic phosphate adhesive to analyze the phosphate reactions during heat treatment, and it was found that 15 wt % nano-AlN could clearly decrease the curing temperature...
November 3, 2017: Materials
https://www.readbyqxmd.com/read/29099130/enhanced-fluorescence-with-nanosecond-dynamics-in-the-solid-state-of-metal-ion-complexes-of-alkoxy-salophens
#11
Tuhin Khan, Anindya Datta
Salophen (N,N'-bis-(salicylidene)-o-phenylenediamine) is a Schiff base, which is weakly emissive in solution, but strongly emissive in the solid state. The trend is reversed in its aluminium complex (SalAl(+)), which is strongly emissive in solution, but feebly emissive in the solid state. Thus, SalAl(+) is not attractive for application as a solid state emitter. In the present study, salophen derivatives containing -OCH3 and OC2H5 groups have been studied with the intent to perturb the structure and control the emission properties...
November 3, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29098948/urban-wastewater-photobiotreatment-with-microalgae-in-a-continuously-operated-photobioreactor-growth-nutrient-removal-kinetics-and-biomass-coagulation-flocculation
#12
Fatima Zahra Mennaa, Zouhayr Arbib, José Antonio Perales
The aim of this study was to investigate the growth, nutrient removal and harvesting of a natural microalgae bloom cultivated in urban wastewater in a bubble column photobioreactor. Batch and continuous mode experiments were carried out with and without pH control by means of CO2 dosage. Four coagulants (aluminium sulphate, ferric sulphate, ferric chloride and polyaluminium chloride (PAC)) and five flocculants (Chemifloc CM/25, FO 4498SH, cationic polymers Zetag (Z8165, Z7550 and Z8160)) were tested to determine the optimal dosage to reach 90% of biomass recovery...
November 3, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29098459/picosecond-532-nm-neodymium-doped-yttrium-aluminium-garnet-laser-a-novel-and-promising-modality-for-the-treatment-of-caf%C3%A3-au-lait-macules
#13
Ofir Artzi, Joseph N Mehrabi, Amir Koren, Roni Niv, Moshe Lapidoth, Assi Levi
Café-au-lait macules (CALMs) present as benign hyperpigmented, well-circumscribed spots on the skin for which many patients seek treatment for aesthetic reasons. The objective of this study is to report our experience in treating CALMs using a picosecond 532-nm neodymium-doped yttrium aluminium garnet (PS 532 nm) laser. This is a retrospective case series of 16 patients with CALMs who were treated by a PS 532-nm laser (1-4 treatments, 4-8 weeks apart). Response as seen on clinical photographs was assessed by two independent dermatologists and graded on a scale of 0 (exacerbation) to 5 (95-100% improvement)...
November 2, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29098194/cowper-s-syringocele-in-adolescent-male-case-report
#14
Milena Taskovska, Simon Hawlina
Background: Cowper's syringocele is a rare condition, uncommon in the adult population. It is more common in the pediatric population. Patients could be asymptomatic or present with irritative and/or obstructive symptoms. Ultrasonography (US) of perineal region, pelvis MRI, or urethrography are the most often used diagnostic modalities. Surgical treatment is indicated in all symptomatic patients. Endoscopic approach is preferred over open surgery. Unroofing of syringocele with cold knife or holmium yttrium aluminium garnet (YAG) laser is effective treatment...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29096989/the-effect-of-manufacturing-techniques-on-custom-made-titanium-cranioplasty-plates-a-pilot-study
#15
Amy V Davey
OBJECTIVE: This study investigated the effect of varying techniques on the surface characteristics of pressed titanium cranioplasty plates, commonly manufactured in laboratory practice. The aim was to highlight the variety of techniques currently used, assess these methods of manufacture and produce manufacturing recommendations. METHODS: A questionnaire identified manufacturing methods commonly used by maxillofacial prosthetists. The plate surfaces were examined using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectrometry...
September 28, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29096301/selective-binding-behavior-of-humic-acid-removal-by-aluminum-coagulation
#16
Pengkang Jin, Jina Song, Lei Yang, Xin Jin, Xiaochang C Wang
The reactivity characteristics of humic acid (HA) with aluminium coagulants at different pH values was investigated. It revealed that the linear complexation reaction occurred between aluminum and humic acid at pH < 7, and the reaction rate increased as the pH increased from 2 to 6. While at pH = 7, most of the dosed aluminum existed in the form of free aluminum and remained unreacted in the presence of HA until the concentration reached to trigger Al(OH)3(s) formation. Differentiating the change of functional groups of HA by (1)H nuclear magnetic resonance spectroscopy and X-ray photoelectron spectra analysis, it elucidated that there was a selective complexation between HA and Al with lower Al dosage at pH 5, which was probably due to coordination of the activated functional groups onto aluminium...
October 27, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29080487/utilization-of-red-mud-and-pb-zn-smelter-waste-for-the-synthesis-of-a-red-mud-based-cementitious-material
#17
Yuan-Cheng Li, Xiao-Bo Min, Yong Ke, Li-Yuan Chai, Mei-Qing Shi, Chong-Jian Tang, Qing-Wei Wang, Yan-Jie Liang, Jie Lei, De-Gang Liu
A new method in which Pb/Zn smelter waste containing arsenic and heavy metals (arsenic sludge), red mud and lime are utilized to prepare red mud-based cementitious material (RCM) is proposed in this study. XRD, SEM, FTIR and unconfined compressive strength (UCS) tests were employed to assess the physicochemical properties of RCM. In addition, ettringite and iron oxide-containing ettringite were used to study the hydration mechanism of RCM. The results show that the UCS of the RCM (red mud+arsenic sludge+lime) was higher than that of the binder (red mud+arsenic sludge)...
October 23, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29077628/vulvar-lymphangioma-circumscriptum-treated-with-fractional-ablative-erbium-yttrium-aluminium-garnet-laser
#18
Joy Makdisi, Sebastien de Feraudy, Christopher B Zachary
No abstract text is available yet for this article.
October 26, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29077572/alternative-long-ranged-charge-optimized-many-body-potential-for-aluminium
#19
Yunjie Mo, Yingyou He, Xiaofang Feng, Shao-Ji Jiang
A new COMB3 potential was developed for aluminium, which focuses on long-range interaction and phase transition. The potential was developed by fitting the equilibrium lattice properties of different phases and defects to ensure its transferability to general systems. The quality of the potential was tested in several problems and compared with the EAM potential as well as the published COMB3 potential, the effect of the cutoff method was studied in detail to demonstrate the necessity to extend the cutoff region...
October 27, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29076430/quantification-of-newly-discovered-anti-cancer-drug-enzalutamide-in-bulk-and-synthetic-mixture-by-stability-indicating-tlc-method
#20
Usmangani K Chhalotiya, Dharmendra J Prajapati, Minesh D Prajapati, Jalpa U Patel, Jaineel Desai
Objective A impressionable, discriminatory and precise stability indicating high performance thin layer chromatographic method has been developed and validated for the estimation of of Enzalutamide in bulk and synthetic mixture. Method The method engaged HPTLC aluminium plates pre-coated with silica gel 60F-254 as the stationary phase while the solvent system was ethyl acetate: toluene (4.5:5.5, v/v). The Rf value of enzalutamide was detected to be 0. 39 ± 0. 005 and the densitometric analysis were carried out in absorbance mode at 246 nm...
October 27, 2017: Current Drug Discovery Technologies
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