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Touchy subject: 3D-printed fingertip “feels” like human skin

<p>Machines can beat the world’s best chess players, but they cannot handle a chess piece as well as an infant. This lack of <a href="https://cosmosmagazine.com/technology/robotics/the-surprisingly-complicated-technology-that-goes-into-picking-winners/" target="_blank" rel="noreferrer noopener">robot dexterity</a> is partly because artificial grippers lack the fine tactile sense of the human fingertip, which is used to guide our hands as we pick up and handle objects.</p> <p>But now, scientists have created this sense of touch in an artificial fingertip using a 3D-printed mesh of pin-like papillae (bumps) on the underside of synthetic skin. These papillae mimic the dermal papillae found between the outer epidermal and inner dermal layers of human tactile skin.</p> <p>This 3D-printed tactile fingertip can produce artificial nerve signals that look like recordings from real, tactile neurons.</p> <div class="newsletter-box"> <div id="wpcf7-f6-p187394-o1" class="wpcf7" dir="ltr" lang="en-US" role="form"> <form class="wpcf7-form mailchimp-ext-0.5.61 spai-bg-prepared init" action="/technology/robotics/robot-3d-printed-fingertip/#wpcf7-f6-p187394-o1" method="post" novalidate="novalidate" data-status="init"> <p style="display: none !important;"><span class="wpcf7-form-control-wrap referer-page"><input class="wpcf7-form-control wpcf7-text referer-page spai-bg-prepared" name="referer-page" type="hidden" value="https://cosmosmagazine.com/technology/" data-value="https://cosmosmagazine.com/technology/" aria-invalid="false" /></span></p> <p><!-- Chimpmail extension by Renzo Johnson --></form> </div> </div> <p>The papillae are made on advanced <a href="https://cosmosmagazine.com/technology/materials/how-does-3d-printing-work/" target="_blank" rel="noreferrer noopener">3D-printers</a> that can mix soft and hard materials to create complicated structures like those found in biology.</p> <p>“Human tactile nerves transmit signals from various nerve endings called mechanoreceptors, which can signal the pressure and shape of a contact,” explains senior author Nathan Lepora, professor of Robotics &amp; AI (Artificial Intelligence) from the University of Bristol’s Department of Engineering Maths, UK.</p> <p>Electrical recordings from these nerves were first plotted in 1981 to study “tactile spatial resolution” using a set of standard ridged shapes used by psychologists. In this work, researchers tested their 3D-printed artificial fingertip as it “felt” those same ridged shapes and discovered a startlingly close match to the neural data.</p> <p>“Our work helps uncover how the complex internal structure of human skin creates our human sense of touch,” says Lepora. “This is an exciting development in the field of soft robotics – being able to 3D-print tactile skin could create robots that are more dexterous or significantly improve the performance of prosthetic hands by giving them an in-built sense of touch.”</p> <p>The <a href="https://arxiv.org/abs/2107.02084" target="_blank" rel="noreferrer noopener">research</a> was published in the <em>Journal of the Royal Society Interface</em>.</p> <p><!-- Start of tracking content syndication. Please do not remove this section as it allows us to keep track of republished articles --></p> <p><img id="cosmos-post-tracker" style="opacity: 0; height: 1px!important; width: 1px!important; border: 0!important; position: absolute!important; z-index: -1!important;" src="https://syndication.cosmosmagazine.com/?id=187394&amp;title=Touchy+subject%3A+3D-printed+fingertip+%E2%80%9Cfeels%E2%80%9D+like+human+skin" width="1" height="1" data-spai-target="src" data-spai-orig="" data-spai-exclude="nocdn" /></p> <p><!-- End of tracking content syndication --></p> <div id="contributors"> <p><em><a href="https://cosmosmagazine.com/technology/robotics/robot-3d-printed-fingertip/" target="_blank" rel="noopener">This article</a> was originally published on <a href="https://cosmosmagazine.com" target="_blank" rel="noopener">Cosmos Magazine</a> and was written by <a href="https://cosmosmagazine.com/contributor/imma-perfetto" target="_blank" rel="noopener">Imma Perfetto</a>. Imma Perfetto is a science writer at Cosmos. She has a Bachelor of Science with Honours in Science Communication from the University of Adelaide.</em></p> <p><em>Image: Professor Nathan Lepora</em></p> </div>

Technology

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Alleged right-wing extremist planned to 3D-print gun

<p><span style="font-weight: 400;">A man from New South Wales’ Central West region has </span><a rel="noopener" href="https://7news.com.au/news/crime/nsw-man-with-nazi-flag-in-bedroom-arrested-c-3950729" target="_blank"><span style="font-weight: 400;">been arrested</span></a><span style="font-weight: 400;"> by counter-terrorism police for planning to produce a 3D gun.</span></p> <p><span style="font-weight: 400;">26-year-old Michael Priest has been charged for possessing a blueprint to 3D print a gun - which is prohibited by NSW firearm laws and carries a penalty of 14 years in prison.</span></p> <p><img style="width: 500px; height:281.25px;" src="https://oversixtydev.blob.core.windows.net/media/7844024/arrest-dubbo2.jpg" alt="" data-udi="umb://media/788c57198f884c7ca9dbca51f26035fd" /></p> <p><em><span style="font-weight: 400;">Image: Police Multimedia / AFP</span></em></p> <p><span style="font-weight: 400;">Police began investigating Mr Priest less than two weeks ago, after the Australian Border Force intercepted a package containing a firearm component addressed to the man.</span></p> <p><span style="font-weight: 400;">Upon further investigation by the NSW Joint Counter Terrorism (JCTT) team, they discovered the man listed as the recipient of the package was also a right-wing extremist.</span></p> <p><span style="font-weight: 400;">His home was searched by police on Friday, where they discovered a Nazi flag and a map of the state hanging on his bedroom wall.</span></p> <p><img style="width: 500px; height:281.25px;" src="https://oversixtydev.blob.core.windows.net/media/7844023/arrest-dubbo1.jpg" alt="" data-udi="umb://media/de74f9783a8c4647985b852da2139b7c" /></p> <p><em><span style="font-weight: 400;">Image: Police Multimedia / AFP</span></em></p> <p><span style="font-weight: 400;">Mr Priest has allegedly been importing “legally obtained items” since the middle of 2020, which police said were to be used to manufacture weapons.</span></p> <p><span style="font-weight: 400;">“The Joint Counter Terrorism Team acted early to prevent him manufacturing a firearm, even though he allegedly made significant preparations to be able to do so,” Stephen Dametto, the counter-terrorism commander of the Australian Federal Police, said in a statement.</span></p> <p><span style="font-weight: 400;">The JCTT is made up of officers from the AFP and NSW Police, as well as investigators from intelligence agency ASIO and the NSW Crime Commission.</span></p> <p><span style="font-weight: 400;">“The potential for 3D printers to print firearms, or their components, is something police are constantly monitoring, and we will take action if we have evidence a person intends to manufacture a firearm,” Dametto said.</span></p> <p><span style="font-weight: 400;">NSW Police said homemade firearms were often poorly made, adding to the danger.</span></p> <p><span style="font-weight: 400;">“These types of firearms add another layer of risk in terms of the safety of the community as they are unstable, and many are unable to maintain integrity once fired,” Detective Superintendent Mick Sheehy of the NSW Police and Counter Terrorism and Special Tactics Command said in a statement.</span></p> <p><span style="font-weight: 400;">“We will not hesitate to take action if we believe there is a possibility that a firearm could land in the wrong hands.”</span></p> <p><span style="font-weight: 400;">Mr Priest appeared before a Dubbo magistrate on Monday, where he was refused bail.</span></p> <p><span style="font-weight: 400;">He is due to appear in court again on September 27.</span></p> <p><em><span style="font-weight: 400;">Image: Police Multimedia / AFP</span></em></p>

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3D-printed meat coming to an aged care home near you

<p>3D-printed meat could be the future of food in age care homes.</p> <p>Using a meat extract as “ink”, 3D printers could produce soft foods that not only contain the nutrients of meat but be suitable for people with chewing or swallowing issues.</p> <p>Food in aged care homes has in recent years come under the spotlight. With the regulations and time constrictions that often plague aged care kitchens, the sad reality is that the food in aged care is often left considerably wanting.</p> <p>One of Australia’s most beloved cooks Maggie Beer’s passion for good food for all led her to create the Maggie Beer Foundation in 2014, which aims to change the food culture in aged care. She believes that everyone has a right to good food, and can see no reason why those in the later stages of their lives should miss out.</p> <p>“My hope is that every meal can give comfort and pleasure, always something to look forward to,” <strong><span style="text-decoration: underline;"><a href="http://www.oversixty.com.au/health/caring/2016/06/maggie-beer-reflects-on-the-importance-of-food-in-aged-care/">Maggie wrote in a piece for Over60.</a></span></strong></p> <p>With advances in technology, there may be new and novel ways for aged care food to be transformed in the future.</p> <p>In the inaugural Sydney talk for Rising Minds on Thursday, Michael Lee, a food technologist and program manager for innovation at Meat and Livestock Australia (MLA), spoke about the exciting possibilities of new technologies to transform food in aged care, making it more appetising through taste, texture and shape.</p> <p>“One is definitely 3D printing,” Michael tells Over60, “We are also looking at technology called high-moisture extrusion cooked. Those two technologies in particular are all around providing texture. We are looking at how we can use technology that actually has meat-like fibres and texture, so that food can be actually enjoyable to eat and chew.”</p> <p>Red meat is a great source of protein, iron and zinc, but chewing and swallowing problems means meat isn’t on the menu for many aged care residents.</p> <p>“What’s important for seniors is that they have muscle strength, so they do not fall,” says Michael, adding, “Red meat with its high protein component can actually help muscle strength.”</p> <p>Considering chops, sausages and roasts were a staple in many aged care residents’ diets throughout their lives, Michael hopes the emerging technologies will provide a tasty and nutritious solution for people who still want to enjoy meat.</p> <p>“We need to be adaptable and say steaks and roasts and chops are great products but can we use technology to give a certain segment of the population some solutions, so they can still eat red meat, but in a different form,” says Michael.</p> <p>“I’d love to see a red-meat solution of some form so aged care residents can still enjoy red meat.”</p> <p><em><strong><a href="/%20http:/www.risi.ng/" target="_blank"><span style="text-decoration: underline;">Rising Minds</span></a> is a global collective that hosts free, monthly lectures that explore the futures of business, technology and culture, and where they intersect. Find more information and the speaker for the next talk by visiting their <a href="/%20http:/www.risi.ng/" target="_blank"><span style="text-decoration: underline;">website</span></a>.</strong></em></p> <p><strong>Related links:</strong></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.com.au/health/caring/2017/01/lower-stroke-risk-with-a-tipple/">Lower your stroke risk with a tipple</a></em></strong></span></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.com.au/health/caring/2017/01/diet-to-defeat-dementia/">The everyday diet to defeat dementia</a></em></strong></span></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.com.au/health/caring/2016/12/this-herb-can-improve-memory-and-fight-dementia/">Smelling this herb can improve memory and reduce risk of dementia</a></em></strong></span></p>

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Researchers print 3D ear tissue

<p>3D printing is a process used to make a three-dimensional object, using successive layers of material that form under computer control to create an object.</p> <p>Researchers at <a href="http://www.wakehealth.edu/WFIRM/" target="_blank"><strong><span style="text-decoration: underline;">The Wake Forest Baptist Medical Centre</span></strong></a> have used this startling new technology to print customised ear moulds and earbuds in the past, and have now shown that even living tissue structures have the potential to be 3D printed. This includes ears, bone and muscle, which may actually be used to replace lost or damaged tissue on human patients.</p> <p>Dr. Anthony Atala, director of the Wake Forest Institute for Regenerative Medicine and senior author on the study, said, “With further development, this technology could potentially be used to print living tissue and organ structures for surgical implantation.”</p> <p>In the study, they created a baby-sized ear structure of 1.5 inches that was implanted on a mouse and showed signs of vascularization one and two months after implantation and even maintained its shape.</p> <p><strong>Related links:</strong></p> <p><a href="/health/hearing/2016/02/scientists-close-to-curing-partial-deafness/"><em><strong><span style="text-decoration: underline;">Scientists are close to curing partial deafness</span></strong></em></a></p> <p><a href="/health/hearing/2016/03/airborne-ultrasound-could-be-harmful/"><strong><em><span style="text-decoration: underline;">Airborne ultrasound could be harmful</span></em></strong></a></p> <p><a href="/health/hearing/2016/02/apps-for-people-with-hearing-loss/"><strong><em><span style="text-decoration: underline;">Revolutionary apps for people with hearing loss</span></em></strong></a></p>

Hearing

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Australians may soon be living in 3D printed houses

<p>New technology means the idea of Australians living in a 3D printed house is now a reality.</p> <p>Dr Hank Haeusler, senior architecture lecturer at the University of NSW, said that technically speaking the idea of building a 3D printed house was possible. The key, he says, was to find the right client, developer and builders to construct it.</p> <p>“I think it is definitely going to happen ... I think in five to 10 years we will see more and more 3D printed housing construction and nodes,” Dr Haeusler told news.com.au.</p> <p>Dr Haeusler said that researchers at RMIT in Melbourne had already developed a 3D printed structural node that could connect building parts together. Already, 3D printing is being used to manufacture cars and planes.</p> <p>While it is still in an experimental stage of development, the capabilities of the 3D printers have been proven. It’s now a race for the architects to perfect the technique.</p> <p>Professor Behrokh Khoshnevis, a researcher from the University of Southern California has been developing the technology for more than 10 years. It is his goal to be able to build a house from scratch in less than 24 hours.</p> <p>“Our goal,” he told The Age in 2003, “is to be able to completely construct a one-storey 185-square-metre home on site in one day, without using human hands.”</p> <p>He would like to create a huge printer that could print a whole house in a single run.</p> <p>When speaking to news.com.au, Prof Khoshnevis said that entry level 3D printing machines for buildings would be offered for sale within the next couple of years but extensive testing was required before they could get the technology certified.</p> <p>“One should realise that initially 3D printing can build the basic shell of the building. There is much more that goes into a house,” Prof Khoshnevis said.</p> <p>3D printing could make building a traditional home around 10 per cent cheaper too, he said. But for simple houses, such as low income or emergency accommodation, the savings could be significant.</p> <p>In 2014 in China, WinSun Decoration Design Engineering company showed its capabilities by printing 10 houses in 24 hours using what it described as the world’s biggest 3D printers.</p> <p>The cost of these simple one room houses was just $AU6494 each. The company has also built a much larger structure which it calls the “world’s tallest 3D printed building”, as well as a 3D printed mansion which cost around $AU209,111.</p> <p>Prof Khoshnevis and Dr Haeusler both agree that architectural flexibility was one of the unique advantages of printing 3D houses.</p> <p>“Time will tell if 3D printing really will be cheaper but it will definitely be possible to design and build complex shapes,” Dr Haeusler said.</p> <p>If the well known architect Jorn Utzon was trying to build the Sydney Opera House in this day and age, Dr Haeusler said he would be looking at using 3D technology.</p> <p>While 3D printed homes could be a cheaper option as labour costs go up, they still use traditional building materials such as concrete, said Dr Haeusler.</p> <p>“I think for the bog standard Australian suburban house, I wouldn’t see any point in 3D printing because you can easily go and buy design components such as bricks easily from stores such as Bunnings. But if you want to design and build a house like the Opera House where you couldn't get the components, then 3D printing becomes an advantage.”</p> <p>“At the moment it wouldn’t make a contribution to affordable housing because technology has not got to the stage yet where it could be used for mass commercial production.”</p> <p><em>Image Source: Contour Crafting</em></p> <p><span style="text-decoration: underline;"><strong>Related links:</strong></span></p> <p><span style="text-decoration: underline;"><strong><a href="/news/news/2015/06/imprisoned-men-and-race-horses/">Prisoners and retired racehorses give each other hope for a better future</a><a href="/news/news/2015/06/imprisoned-men-and-race-horses/" target="_blank"><br /></a></strong></span></p> <p><span style="text-decoration: underline;"><strong><a href="/news/news/2015/06/mother-rabbit-fights-snake/">Mother rabbit fights giant snake to save her babies</a></strong></span></p> <p><span style="text-decoration: underline;"><strong><a href="/news/news/2015/06/ashamed-dog-broke-glasses/">This dog is so ashamed he broke his owner’s glasses, he can’t look her in the eye</a></strong></span></p>

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Two-legged Dachshund gets 3D-printed legs

<p>Meet Bubbles, the Dachshund who was born without her front legs. Her human, Trevor Byers, first noticed that Bubbles was short two legs when she was in the whelping box, and was concerned for the quality of life she would have. Clearly, that’s no longer a concern.</p> <p>Thanks to a 3D printer, and after many failed attempts by Trevor to design a suitable wheelchair or set of wheels, Bubbles can now get around with all of her friends. She does so quite speedily, too. Trevor even shared the design on the DIY website Instructables, along with detailed instructions so that anyone whose dog may need similar assistance getting around doesn’t have to go without.</p> <p><em><strong><span style="text-decoration: underline;"><a href="http://www.instructables.com/id/Small-Front-Leg-Dog-Wheelchair/?ALLSTEPS" target="_blank">You can see how Trevor created the wheels here.</a></span></strong></em></p> <p><em><strong><a href="https://www.facebook.com/Bubbles2legs" target="_blank"><span style="text-decoration: underline;">And visit Bubbles on Facebook here.</span></a></strong></em></p> <p><strong>Related links:</strong></p> <p><span style="text-decoration: underline;"><em><strong><a href="/news/news/2015/06/blind-jack-russel-and-best-friend/">Meet the blind Jack Russel and his best friend who acts as his eyes</a></strong></em></span></p> <p><span style="text-decoration: underline;"><em><strong><a href="/news/news/2015/06/most-popular-aussie-supermarkets/">Aussie shoppers are ditching Coles and Woolworths in favour of Aldi</a></strong></em></span></p> <p><span style="text-decoration: underline;"><em><a href="/news/news/2015/06/grandfather-drug-trafficker/"><strong>How did this Gold Coast pensioner become a drug trafficker?</strong></a></em></span></p>

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