Organovo’s 3D-printed mini-liver just shattered its own record, carrying out the same cellular functions as a natural human liver for 40 days in the lab. That may not seem like a lot — human liver cells are replaced about every 300 to 500 days — but the company’s previous millimeter-sized liver slivers only managed five days. The trick: Organovo uses the same mix of hepatocytes (the cells that carry out liver functions) and endothelial cells (which form the liver’s architectural support) found in nature, leading cells to develop more naturally than other experiments that used only the functional cells. It’s a small but significant step for the more than 120, 000 people on organ transplant waiting lists worldwide. Read more…
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3D-Printed Mini Human Liver Survives 40 Days, Works Like the Real Thing
Regardless of whether you saw them as a menace , the first 3D-printed guns were an objectively far, boxy cry from the weapons we’re used to seeing. But just from looking at Solid Concept’s newest firearm offering, you’d have no idea that it, too, started out as a mere 3D CAD file before being printed to life. Read more… 
Nerval’s Lobster writes “While Google built its highly profitable search business atop a complex mix of algorithms and machine learning, its latest initiative actually depends on people power: Helpouts, which allows users (for a fee) to video-chat with experts in particular fields. Google has rolled out the service with a few brands in place, such as One Medical and Weight Watchers, and promises that it will expand its portfolio of helpful brands and individuals over the next several months. Existing categories include Cooking, Art & Music, Computers & Electronics, Education & Careers, Fashion & Beauty, Fitness & Nutrition, Health, and Home & Garden. Some Helpouts charge nothing for their time; for example, the ‘Cooking’ section of the Website already features a handful of chefs willing to talk users through baking, broiling, slicing and dicing for free. A few vendors in the Computers & Electronics section, by contrast, charge $2 per minute or even $200 per Hangout session for advice on WordPress setup, Website design, and more. So why is Google doing this? There are plenty of Websites that already dispense advice, although most rely on the written word—Quora, for example, lets its users pose text-based questions and receive answers. There’s also rising interest in Massive Open Online Courses, also known as MOOCs, in which thousands of people can sign online to learn about something new. In theory, Helpouts (if it’s built out enough) could make Google a player in those markets, as well as specialized verticals such as language learning — and earn some healthy revenue in the process.” Read more of this story at Slashdot. 