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Aubameyang buzzing after derby win

first_imgArsenal forward Pierre-Emerick Aubameyang has thanked the supporters after he scored a brace in their 4-2 victory at home against Tottenham Hotspur.Aubameyang converted a first-half penalty and scored a second-half equalizer as Arsenal came from behind to win 4-2 against Spurs in Sunday’s North London derby.“We had a great first half but after the first goal we conceded, we had a moment where we were a bit down,” Aubameyang told the club’s website.“At half-time we were confident. We spoke and we knew that we could do it in the second half, to come back. We did it. Then we had the fans behind us and we had power, we felt strong. We went for the win.”Jadon SanchoMerson believes Arsenal should sign Sancho Manuel R. Medina – September 14, 2019 Borussia Dortmund winger Jadon Sancho might be the perfect player to play for the Gunners, according to former England international Paul Merson.The victory took Arsenal to fourth place in the table, but Aubameyang insists that their performance is more important.“I think the most important thing right now is the performances. Of course, we want to continue this form and we’re still winning games,” he said.“We’re unbeaten, so it’s great at the moment. We just have to keep going.”last_img read more

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Dark Phoenix Mystique and Storm just got their own XMen Barbie dolls

first_img Share your voice Dark Phoenix looks even more deadly in Barbie form.  Mattel Whether you loved or hated the superhero movie X-Men: Dark Phoenix, fans of Dark Phoenix, Mystique, and Storm will be able to collect them all… in Barbie doll form.During San Diego Comic-Con on Thursday, Marvel and Mattel announced a new line of Mystique, Storm and Dark Phoenix Barbie dolls to celebrate Marvel Comics’ 80th anniversary. The X-Men dolls come with elaborate costumes and accessories, and retail for $55 (roughly £44, AU$78) each. Young Stan Lee returning in animated form Stan Lee sang to me: 10 crazy Comic-Con moments I’ll never forget Comic-Con survival tips from Adam Savage, Jim Lee and more insiders 6:21 The hottest SDCC 2019 exclusives we’ve seen so far Dark Phoenix: You might know her as Jean Grey-Summers. In the X-Men universe Jean AKA Dark Phoenix is an Omega-level mutant with telepathic and telekinetic powers. Dark Phoenix Barbie doll dons her signature red bodysuit with gold details and includes the gold phoenix image. She also wears thigh-high boots, gloves and a sash belt.mystiqueMystique Barbie doll Mattel Mystique: This super villain is a mutant born who can shape-shift to look like anyone she wants. Mystique Barbie doll wears a white dress with a double slit and a very creepy belt of skulls. Her other accessories include white gloves, tall boots and the skull detail on her forehead.storm3Storm Barbie doll Mattel Storm: Born Ororo Munroe, Storm is a member of the X-Men team who can change the weather on a whim or as a weapon. Storm Barbie doll wears a shiny-black bodysuit, cape and boots, all with fancy metallic-gold trim. She also has gauntlets, a headdress, and her gemstone brooch to complete the outfit.Fans can pre-order these new Barbie dolls at GameStop beginning July 18. The dolls will be available in stores later in October. Now playing: Watch this: More SDCC news 25 Photoscenter_img Marvel X-Men 0 Post a comment Rick and Morty Comic-Con exclusive toy unboxing Comic-Con Toys and Tabletop Games TV and Movies Tagslast_img read more

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CarbonNanotube Toxicity Test Tricks Scientists

first_img Citation: Carbon-Nanotube Toxicity Test Tricks Scientists (2006, September 5) retrieved 18 August 2019 from https://phys.org/news/2006-09-carbon-nanotube-toxicity-scientists.html Recent research has revealed that a standard cell-viability test may be causing carbon-nanotubes to “fake” toxicity. This work may explain why some studies have concluded that carbon nanotubes – which are being studied for their potential to improve building materials, drug-delivery systems, and electronics, to name a few applications – are dangerous to human health while others have not. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.center_img Researchers from the Institute of Toxicology and Genetics at the Karlsruhe Research Center in Karlsruhe, Germany, exposed human lung cells to single-walled carbon nanotubes (SWCNTs) – large cylindrical carbon molecules – and conducted several tests to determine the nanotubes’ effect on the cells’ viability. Three tests showed the nanotubes to be non-toxic, but a fourth curiously produced the opposite result.“Each of the four tests gauges the toxicity of the SWCNTs in a different way, using different indicators, but we would expect them to yield the same result,” said the study’s lead scientist, Harald Krug, to PhysOrg.com. “The fact that one test appears to produce a ‘false positive’ in terms of toxicity suggests that past carbon-nanotube toxicity studies may be flawed.”The first test, known as the MTT assay, works by measuring how a salt, methylthiazol tetrazolium (MTT), is chemically converted to formazan, a purple dye, after being applied to nanotube-exposed cells. This conversion only takes place when certain cell mitochondria enzymes are active – that is, if the cell is alive and well. According to the results of the MTT assay, the nanotubes compromised cell viability.Krug and his colleagues attempted to verify the results of the MTT assay using another salt-based viability test, the water-soluble tetrazolium (WST) assay. According to this test, the nanotubes had no negative effect on the cells. Two other tests also showed no reduction in cell viability.Why the discrepancy between the MTT assay and the other tests? The answer seems to be due to the non-soluble nature of MTT and formazan. Using an electron microscope, the researchers saw that MTT-formazan crystals had covered the nanotubes, clumping everything together. The nanotubes were reacting with the MTT, causing the formazan to withdraw from the assay. This made the formazan undetectable and, as a result, made the nanotubes appear toxic. Several attempts to dissolve the crystals, as well as heat treatments, were unsuccessful.“In these studies, the viability assay of choice really needs to be double-checked, since interferences and disturbances are likely,” said Krug. “Further, we think our work demonstrates that standards should be established when testing the toxicity of carbon nanotubes and other nanomaterials.”An in-depth paper on this work can be found in the June 2006 edition of Nano Letters.Citation: Nano Lett., Vol. 6, 1261-1268 (2006)By Laura Mgrdichian, Copyright 2006 PhysOrg.comlast_img read more

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