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https://www.readbyqxmd.com/read/28549420/prognostic-significance-of-tumor-infiltrating-immune-cells-in-oral-squamous-cell-carcinoma
#1
Juan Fang, Xiaoxu Li, Da Ma, Xiangqi Liu, Yichen Chen, Yun Wang, Vivian Wai Yan Lui, Juan Xia, Bin Cheng, Zhi Wang
BACKGROUND: Prognostic factors aid in the stratification and treatment of cancer. This study evaluated prognostic importance of tumor infiltrating immune cell in patients with oral squamous cell carcinoma. METHODS: Profiles of infiltrating immune cells and clinicopathological data were available for 78 OSCC patients with a median follow-up of 48 months. The infiltrating intensity of CD8, CD4, T-bet, CD68 and CD57 positive cells were assessed by immunohistochemistry...
May 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28539372/toward-evidence-based-emergency-medicine-best-bets-from-the-manchester-royal-infirmary
#2
Craig Ferguson
No abstract text is available yet for this article.
June 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28463763/a-novel-and-sensitive-carbon-paste-electrode-with-clinoptilolite-nano-particles-containing-hexadecyltrimethyl-ammonium-surfactant-and-dithizone-for-the-voltammetric-determination-of-sn-ii
#3
Azin Niknezhadi, Alireza Nezamzadeh-Ejhieh
Clinoptilolite nano-particles (CNP) were modified by hexadecyltrimethyl ammonium bromide surfactant (HDTMA) and dithizone (DZ). The modified zeolite was then used for the modification of carbon paste electrode (CPE). The resulted CNP-HDTMA-DZ-CPE was finally used for the voltammetric determination of Sn(II) in aqueous solution. The raw and modified CNP was characterized by SEM-EDX, BET, TG-DTG and FTIR techniques. The best voltammetric response was obtained in 0.1molL(-1) NaNO3+HCl at pH 2.2 as supporting electrolyte...
September 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28457482/aging-effects-on-t-bet-expression-in-human-b-cell-subsets
#4
Daniela Frasca, Alain Diaz, Maria Romero, Francesca D'Eramo, Bonnie B Blomberg
In order to compare human and mouse B cell subset markers, we evaluated T-bet expression in human B cell subsets from individuals of different ages. We found T-bet expressed in unstimulated memory more than naïve B cells, and more in young individuals. TLR7 stimulation up-regulated T-bet in all B cell subsets from young and elderly individuals, and more in the elderly. By fold-increase the best effect was seen in subsets of the elderly and especially in those that undergo class switch (naïve and IgM). We also evaluated CD11c expression, as T-bet+CD11c+ B cells are expanded in healthy elderly individuals and also in patients with autoimmunity...
April 24, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28428437/bet-2-striking-the-right-balance-anticoagulation-and-isolated-distal-deep-vein-thrombosis
#5
Tom Jones, Dan Horner
A short-cut review was carried out to establish whether treatment of isolated distal deep vein thrombosis with therapeutic anticoagulation can reduce adverse clinical outcomes. A meta-analysis from 2011 and 11 subsequent directly relevant papers were found using the reported search strategy. Of these, 7 in total presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are tabulated...
May 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28428435/bet-1-a-glass-half-full-thrombolysis-for-the-treatment-of-submassive-pulmonary-embolism
#6
Liam Barrett, Dan Horner
A short-cut review was carried out to establish whether thrombolysis in addition to therapeutic anticoagulation could be of benefit in submassive (intermediate risk) pulmonary embolism (PE). 64 directly relevant papers were found using the reported search strategy. Of these, three presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are tabulated. It is concluded that there is insufficient evidence to support the routine use of adjuvant thrombolytic therapy at any dose for patients with submassive PE...
May 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28425316/carbon-covered-mesoporous-silica-and-its-application-in-rhodamine-b-adsorption
#7
R C S Nascimento, A O S Silva, L Meili
Modified versions of MCM-41 and SBA-15 were obtained from sucrose by carbon deposition. The ability of the resulting materials, MCM-41 CC and SBA-15 CC, to remove Rhodamine B from aqueous solutions was evaluated. TG/DTG, XRD, Nitrogen Adsorption (BET), and SEM were used to characterize the materials. Adsorption was investigated by finite bath studies. To characterize the adsorption behavior and mechanism, kinetics and equilibrium were assessed. MCM-41 CC provided the best adsorption results: adsorptive capacity of 11...
April 20, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28394738/kinetic-and-isotherm-studies-of-bisphenol-a-adsorption-onto-orange-albedo-citrus-sinensis-sorption-mechanisms-based-on-the-main-albedo-components-vitamin-c-flavones-glycosides-and-carotenoids
#8
Theophile Kamgaing, Giscard Doungmo, Francis Merlin Melataguia Tchieno, Jimmy Julio Gouoko Kouonang, Ketcha Joseph Mbadcam
Orange albedo and its adsorption capacity towards bisphenol A (BPA) were studied. Adsorption experiments were conducted in batch mode at 25-55°C. Scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and Fourier transform infrared (FTIR) spectroscopy were used to characterise the biosorbent. The effects of various parameters including adsorption time, equilibrium pH, adsorbent dosage and initial adsorbate concentration were investigated...
April 10, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28387498/understanding-volumetric-and-gravimetric-hydrogen-adsorption-trade-off-in-metal-organic-frameworks
#9
Diego A Gómez-Gualdrón, Timothy C Wang, Paula García-Holley, Ruth M Sawelewa, Edwin Argueta, Randall Q Snurr, Joseph T Hupp, Taner Yildirim, Omar K Farha
Metal-organic frameworks (MOFs) are porous crystalline materials that are promising for adsorption-based, on-board storage of hydrogen in fuel-cell vehicles. Volumetric and gravimetric hydrogen capacities are the key factors that determine the size and weight of the MOF-filled tank required to store a certain amount of hydrogen for reasonable driving range. Therefore, they must be optimized so the tank is neither too large nor too heavy. Because the goals of maximizing MOF volumetric and gravimetric hydrogen adsorption loadings individually are incompatible, an in-depth understanding of the trade-off between MOF volumetric and gravimetric loadings is necessary to achieve the best compromise between these properties...
April 7, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28371715/oxidation-of-toluene-in-humid-air-by-metal-oxides-supported-on-%C3%AE-alumina
#10
Mohammadreza Esmaeilirad, Mohammad Zabihi, Jalal Shayegan, Farhad Khorasheh
Monometallic and bimetallic supported metal oxides catalysts on γ-alumina were prepared by heterogeneous deposition-precipitation. The γ-alumina used as a support was synthesized by the sol-gel and the co-precipitation methods. Supports and catalysts were characterized by Brunauer-Emmett-Teller (BET) surface area, X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The performance of the prepared catalysts was studied for total oxidation of toluene in air at different relative humidity and oxidation temperatures...
March 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28342341/evaluation-of-heavy-crude-oil-from-a-water-oil-model-system-as-starting-material-for-the-preparation-of-adsorbents-type-nay-zeolite-templated-carbon
#11
Cindy J Elles-Pérez, Amner Muñoz-Acevedo, Andrés Guzmán, Hernando Camargo, José Henao
In this work, NaY zeolite is explored as a possible "template" to obtain porous materials type ZTC from the adsorption of heavy crude oil in a water-oil model system (emulsion). In order to produce the adsorbents, a cationic surfactant is selected to facilitate the adsorption of the crude oil into the pores of the zeolite and to get the composite, which was activated with controlled thermal treatments (T: 700-800 °C and t: 0.5-1 h) in inert conditions (N2 gaseous). The starting materials, composite and porous carbons were characterized using structural/surface analysis techniques (API Gravity, SARA, IR, XRD, XRF, TGA, Langmuir isotherms, BET and SEM)...
March 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28335366/nano-copper-oxide-modified-carbon-cloth-as-cathode-for-a-two-chamber-microbial-fuel-cell
#12
Feng Dong, Peng Zhang, Kexun Li, Xianhua Liu, Pingping Zhang
In this work, Cu₂O nanoparticles were deposited on a carbon cloth cathode using a facile electrochemical method. The morphology of the modified cathode, which was characterized by scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) tests, showed that the porosity and specific surface area of the cathode improved with longer deposition times. X-ray photoelectron spectroscopy (XPS) and cyclic voltammetry (CV) results showed that cupric oxide and cuprous oxide coexisted on the carbon cloth, which improved the electrochemical activity of cathode...
December 9, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28319932/towards-evidence-based-emergency-medicine-best-bets-from-the-manchester-royal-infirmary
#13
Bernard A Foëx
No abstract text is available yet for this article.
November 2016: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28300589/epichlorohydrin-crosslinked-carboxymethyl-cellulose-ethylenediamine-imprinted-polymer-for-the-selective-uptake-of-cr-vi
#14
Tarisai Velempini, Kriveshini Pillay, Xavier Y Mbianda, Omotayo A Arotiba
A new ion-imprinted polymer (IIP) was synthesized from sodium carboxymethyl cellulose and used for the adsorption of hexavalent chromium from aqueous solution. Epichlorohydrin was used to stabilize the polymer before ethylenediamine (EDA) ligand and Cr(VI) were introduced. The obtained IIP was characterized with FTIR, XPS, TGA,(13)C NMR, SEM, EDX, BET and zeta sizer. The kinetics of adsorption followed a pseudo-second-order model while the Langmuir adsorption isotherm provided the best fit with a maximum adsorption capacity of 177...
March 11, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28282564/uio-66-zr-coupled-with-bi-2-moo-6-as-photocatalyst-for-visible-light-promoted-dye-degradation
#15
Jie Ding, Zhiquan Yang, Chong He, Xiaowen Tong, Ying Li, Xiaojun Niu, Hongguo Zhang
This study provides the first attempt to combine UiO-66(Zr) with Bi2MoO6 for the preparation of composite via electrostatic interaction induced self-assembly process. Synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscope (FT-IR), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) surface area analyse and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). The photocatalytic activities of as-obtained Bi2MoO6/UiO-66(Zr) composites were assessed by degradation of Rhodamine B (Rh B) under the visible-light irradiation...
July 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28273573/c-doped-zno-ball-in-ball-hollow-microspheres-for-efficient-photocatalytic-and-photoelectrochemical-applications
#16
Songbo Wang, Xiangwen Zhang, Shuai Li, Yuan Fang, Lun Pan, Ji-Jun Zou
ZnO is an important semiconductor and has been widely used in the field of photocatalysis, solar cell and environmental remediation. Herein, we fabricated C-doped ZnO ball-in-ball hollow microspheres (BHMs) by a facile solvothermal treatment of zinc acetate in ethylene glycol-ethanol mixture. The presence of ethylene glycol (EG) leads to the formation of initial single-layered hollow spheres and then a time-dependent evolution transforms them into uniform BHMs with tunable shell thickness and void space. XPS characterizations reveal that C-dopants are introduced into the lattice of ZnO BHMs, with its concentration increasing with solvothermal time and then becoming saturated in 12h...
February 27, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28270056/ni-2-and-co-2-adsorption-using-tectona-grandis-biochar-kinetics-equilibrium-and-desorption-studies
#17
Sowmya Vilvanathan, S Shanthakumar
In this research, the potential of a relatively new adsorbent prepared from Tectona grandis leaves by pyrolysis for heavy metal removal from aqueous solution was studied. Adsorption behavior of the pyrolytic biochar was investigated with respect to Ni(2+) and Co(2+) removal with its affinity examined through batch studies on the effect of pH, adsorbent dose, initial ion concentration, time and the mechanism elucidated using different empirical isotherm and kinetic models. A significantly higher efficiency of 92...
March 8, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28268183/comprehensive-study-on-the-electrocatalytic-effect-of-copper-doped-nano-clinoptilolite-towards-amoxicillin-at-the-modified-carbon-paste-electrode-solution-interface
#18
Motahare Nosuhi, Alireza Nezamzadeh-Ejhieh
In this work, Cu(II)-exchanged clinoptilolite nanoparticles (Cu(II)-NCL) were prepared and characterized by FTIR, BET, XRD and TEM techniques. The obtained Cu(II)-NCL was then used for the modification of carbon paste electrode (CPE). The resulted Cu(II)-NCL/CPE was finally used for the voltammetric determination of amoxicillin (AMX). The best voltammetric response was obtained by the electrode containing 20% of the modifier in 0.05molL(-1) NaCl at pHs 2.2 and 7.2. The electrode showed a linear response in the concentration range of 4...
July 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28257965/distinctive-morphology-effects-of-porous-spherical-yolk-shell-hollow-pd-nitrogen-doped-carbon-spheres-catalyst-for-catalytic-reduction-of-4-nitrophenol
#19
Yu Long, Yansheng Liu, Ziming Zhao, Sha Luo, Wei Wu, Li Wu, He Wen, Ren-Qi Wang, Jiantai Ma
Pd-nitrogen-doped-carbon nanocatalysts (Pd-C/N) with different morphologies, such as porous spheres, yolk-shell and hollow structures, had been synthesized and compared. The yolk-shell Pd-nitrogen-doped-carbon nanocatalysts (YS-Pd-C/N) and hollow Pd-nitrogen-doped-carbon nanocatalysts (H-Pd-C/N) were prepared through different etch time using SiO2 spheres as hard-templates. The as-prepared catalysts were characterized thoroughly by TEM, BET, XRD, FT-IR, and XPS. Importantly, the catalysts have moderate BET specific surface area in the range from 200 to 300m(2)g(-1) and pore volume between 0...
June 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28069234/ultrasonic-assisted-synthesis-of-bikitaite-zeolite-a-potential-material-for-hydrogen-storage-application
#20
Priyanka Roy, Nandini Das
Li containing Bikitaite zeolite has been synthesized by an ultrasound-assisted method and used as a potential material for hydrogen storage application. The Sonication energy was varied from 150W to 250W and irradiation time from 3h to 6h. The Bikitaite nanoparticles were characterized by X-ray diffraction (XRD), infrared (IR) spectral analysis, and field-emission scanning electron microscopy (FESEM) thermo-gravimetrical analysis and differential thermal analysis (TGA, DTA). XRD and IR results showed that phase pure, nano crystalline Bikitaite zeolites were started forming after 3h irradiation and 72h of aging with a sonication energy of 150W and nano crystalline Bikitaite zeolite with prominent peaks were obtained after 6h irradiation of 250W sonic energy...
May 2017: Ultrasonics Sonochemistry
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