World’s first 3D-printed heart-on-a-chip could help end animal testing

October 25, 2016 by  
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When it comes to medical breakthroughs, the most exciting advances tend to involve technology that can lead to better and earlier diagnoses of various health problems , but breakthroughs that save animals are pretty good too. A team of Harvard University researchers has done just that by developing an entirely 3D-printed “heart-on-a-chip” that may some day eliminate animal testing in medical research. The innovation, which makes it possible to monitor heart performance, is the latest in a medical technology trend of building functional, synthetic replicas of living human organs in an effort to better understand how they work, or—more to the point—how they fail. https://www.youtube.com/watch?v=LHhMlL9flMY Each organ-on-a-chip (also known as a “microphysiological system”) is constructed from a translucent, flexible polymer. The 3D-printed organs mimic the biological environment of our internal organs, and give scientists an up-close look at how they function. The heart-on-a-chip developed at Harvard can help researchers collect reliable data for short-term and long-term studies. Because the device is 3D-printed , scientists can easily customize its design to meet the specifications of their research, and the chips can be fabricated quickly. Related: See-through microchip organs help scientists test new drugs “This new programmable approach to building organs-on-chips not only allows us to easily change and customize the design of the system by integrating sensing but also drastically simplifies data acquisition,” said Johan Ulrik Lind, lead author and postdoctoral fellow at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). Other Harvard research teams have developed microphysiological systems that mimic the microarchitecture and functions of lungs, hearts, tongues, and intestines. These synthetic organs could replace animal testing with a customizable and completely humane alternative that may also lead to more accurate results. Unfortunately, the cost for fabricating these organs-on-a-chip is still quite high, and the process is also time-consuming. Researchers are continuously pushing forward to improve their methods, though, in the hopes of making this a viable and cost-effective alternative toward the cruel practice of animal testing. The results of the team’s research were published this week in the journal Nature Materials. Via Gizmodo Images via Harvard University

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World’s first 3D-printed heart-on-a-chip could help end animal testing

REI announces plan to close all 149 stores on Black Friday

October 25, 2016 by  
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Feeding the frenetic consumerism beast, Black Friday takes a hefty environmental toll each year. To combat the craziness, REI decided to close all 149 branches again this year with their #OptOutside campaign. They’ll pay their 12,287 employees and encourage participants to skip the mall and spend time in nature instead. Want to join in? Share your outdoor adventures on social media with the hashtag #OptOutside. https://www.youtube.com/watch?v=MEVXU4RDUoI With the goal of creating new traditions for the Thanksgiving holiday, REI offers a green alternative through their #OptOutside campaign. To make it even easier for people to forgo shopping and spend time in nature, REI has created an outside activity finder online so people can find state parks or trails close to where ever they are spending Thanksgiving. Explorers can search for places to go hiking, climbing, mountain biking, skiing, or snowboarding. They can also filter for family- or dog-friendly activities. Related: California and Minnesota state parks are free on Black Friday CEO Jerry Stritzke said in a statement, “This year, REI will shut down on both Thanksgiving and Black Friday because fundamentally we believe that being outside makes us our best selves – healthier and happier, physically and mentally. But as a nation we’re still spending over 90 percent of our lives indoors and it’s a trend we need to tackle. I love that there is a community of people in this country who dedicate their lives to that mission, so together, we are asking America, ‘Will you go out with us?'” 275 local and national organizations will join REI to promote the #OptOutside campaign through activities or social media posts, including Subaru, Google, and Meetup. For example, Subaru will offer pet owners in New York City shuttle rides for them and their dogs out of the urban jungle to nature, and will drive shelter dogs to the outdoors to spend time outside of their cages. You can check out the full list of #OptOutside partners here . + REI #OptOutside Images via REI Facebook and REI

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REI announces plan to close all 149 stores on Black Friday

Nothing says “I love you” quite like a 3D-printed steampunk gear heart

January 23, 2015 by  
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If you’re looking for a unique Valentine’s gift for someone special, check this out: you can download plans  on Thingiverse for a 3D-printed steampunk-style gear heart to give as a fun, weird little present. The different sections interlock like puzzle pieces (like you and your sweetheart click together? Awww…), and take just a few hours to print on a standard 3D printer. Each heart measures approximately 10cm across, so they’re just a big bigger than the average human heart. If you don’t have access to a 3D printer, you can also purchase pre-made hearts on Etsy —just order soon if you’d like to get yours in time for V-day! + Download Screwless Heart Gear plans on Thingiverse + Buy pre-made hearts on Etsy Missing Attachment Missing Attachment Missing Attachment Missing Attachment The article above was submitted to us by an Inhabitat reader. Want to see your story on Inhabitat ? Send us a tip by following this link . Remember to follow our instructions carefully to boost your chances of being chosen for publishing! Permalink | Add to del.icio.us | digg Post tags: 3D gear heart plans , 3d printed , 3d printed heart , 3D printing , etsy , Gear heart , gear heart plans , gift , gift idea , gift ideas , heart , present , printed gear heart , Thingiverse , Valentine , Valentine gift , valentine’s day , Valentine’s Day present

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Nothing says “I love you” quite like a 3D-printed steampunk gear heart

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