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Devastating liver disease itching turns out to have a surprising cause A devastating itching of the skin driven by severe liver disease turns out to have a surprising cause. Its discovery points toward possible new therapies for itching, and shows that the outer layer of the skin is so much more than insulation. The finding, which appears April 2 in Gastroenterology, indicates that the keratinocyte cells of the skin surface are acting as what lead researcher Wolfgang Liedtke, MD PhD, calls pre-neurons. The skin cells themselves are sensory under certain conditions, specifically the outermost layer of cells, the keratinocytes. Wolfgang Liedtke, Professor of Neurology, Duke School of Medicine ....
Moving platform for 3D printing might cut waste, costs sandiegosun.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sandiegosun.com Daily Mail and Mail on Sunday newspapers.
E-Mail IMAGE: A NEW DYNAMICALLY-CONTROLLED BASE FOR 3-D PRINTING (LEFT) WILL REDUCE THE NEED FOR PRINTED SUPPORTS (CENTER), CUTTING WASTAGE AND SAVING TIME. view more Credit: Yong Chen 3-D printing has the potential to revolutionize product design and manufacturing in a vast range of fields from custom components for consumer products, to 3-D printed dental products and bone and medical implants that could save lives. However, the process also creates a large amount of expensive and unsustainable waste and takes a long time, making it difficult for 3-D printing to be implemented on a wide scale. Each time a 3-D printer produces custom objects, especially unusually-shaped products, it also needs to print supports-printed stands that balance the object as the printer creates layer by layer, helping maintain its shape integrity. However, these supports must be manually removed after printing, which requires finishing by hand and can result in shape i ....
6th April 2021 10:48 am 6th April 2021 10:48 am Engineers in the US have created a prototype 3D printing platform with adjustable metal pins that negate the need to print excess support structures. Many additive methods rely on printing additional support material in order to maintain part integrity during the manufacturing process, particularly for complex components. These excess structures must then be removed and the part finished by hand, something that can result in shape inaccuracies or surface roughness. Furthermore, the additional material can often not be reused, leading to increased waste. The new platform, developed by scientists at the USC Viterbi School of Engineering, features programmable, dynamically controlled metal pins to replace the printed supports. According to the researchers, testing of the prototype demonstrated around a 35 per cent saving in the materials required to print certain parts. ....
Dynamic platform cuts 3D printing waste by 35% 06 Apr 2021 Professional Engineering The dynamically controlled surfaces (a) reduce the need for printed supports (b) to cut waste material (Credit: Yong Chen) A dynamically controlled surface with moving metal platforms can cut material usage in 3D printing by reducing the need for “wasteful” printed supports, its developers have said. Printing times could also be shortened thanks to the new technique, said the researchers from the University of Southern California (USC). As conventional 3D printers create custom objects layer-by-layer, they often need to print supports to balance the product. These supports are manually removed after printing, which requires finishing by hand and can result in shape inaccuracies or surface roughness. The materials the supports are made from often cannot be reused, so they are discarded and contribute to the growing problem of 3D-printed waste materi ....