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IMAGE: The optical properties of carbon nanotubes, which consist of a rolled-up hexagonal lattice of sp2 carbon atoms, can be improved through defects. A new reaction pathway enables the selective creation. view more
Credit: Simon Settele (Heidelberg)
The properties of carbon-based nanomaterials can be altered and engineered through the deliberate introduction of certain structural imperfections or defects. The challenge, however, is to control the number and type of these defects. In the case of carbon nanotubes - microscopically small tubular compounds that emit light in the near-infrared - chemists and materials scientists at Heidelberg University led by Prof. Dr Jana Zaumseil have now demonstrated a new reaction pathway to enable such defect control. It results in specific optically active defects - so-called sp3 defects - which are more luminescent and can emit single photons, that is, particles of light. The efficient emission of near-infrared light is
Zähneknirschend durch die Corona-Krise
rp-online.de - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from rp-online.de Daily Mail and Mail on Sunday newspapers.
Münchener Räterepublik 1919: „In München rast der russische Terror
welt.de - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from welt.de Daily Mail and Mail on Sunday newspapers.
Apr. 8, 2021 , 4:00 AM
Hans-Ulrich Wittchen, one of Germany’s top psychologists and an expert in treating anxiety and phobias, is not shy about promoting himself. His email signature says he is a “highly cited researcher,” and with good reason. He has almost 1000 articles to his name, according to the Web of Science, and has racked up nearly 70,000 citations. He is an editor of Germany’s diagnostic and statistical manual of mental disorders the bible of clinical psychology and until 2017, he led a psychology research institute at the Dresden University of Technology (TU Dresden).
Yet his reputation is under fire after an investigation into one of his studies found evidence of manipulation and elaborate efforts to cover up the misdeed. The investigation report, turned over to TU Dresden in February and obtained by
Erbe Elektromedizin to acquire Maxer Endoscopy
An investment to strengthen our operating room presence
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210406005418/en/
From left to right: Christian O. Erbe, CEO Erbe Elektromedizin GmbH, Shirish Joshi, General Manager Maxer Endoscopy GmbH, Gayatri Joshi, Shareholder Maxer Endoscopy GmbH, Daniel Zimmermann, CFO Erbe Elektromedizin GmbH, and Marcus Felstead, CMO Erbe Elektromedizin GmbH.
(The picture was taken after all parties were tested COVID-19 negative.) This acquisition reflects our determination to become a solution provider for surgeries and procedures where visualization is critical. We will offer holistic solutions, from visualization to therapy. Entering into the world of fluorescence imaging systems is the logical first step to provide the required added value to our customers , according to Christian O. Erbe, CEO President at Erbe Elektromedizin GmbH. Maxer