{"id":40076,"date":"2020-08-04T16:05:00","date_gmt":"2020-08-04T13:05:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/using-viscous-metals-in-micro-fibers\/"},"modified":"2020-08-04T16:05:00","modified_gmt":"2020-08-04T13:05:00","slug":"using-viscous-metals-in-micro-fibers","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/using-viscous-metals-in-micro-fibers\/","title":{"rendered":"#Using viscous metals in micro fibers"},"content":{"rendered":"

“#Using viscous metals in micro fibers<\/strong>”<\/p>\n

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\"Using<\/img>
\n Credit: Wei Yan\/EPFL
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EPFL scientists have developed the first micro-structured fibers with a viscous metal inside\u2014a perfect example of what cross-disciplinary teamwork can achieve.<\/p>\n

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Platinum, copper, nickel and phosphorous\u2014those are the components of an amorphous metal alloy with excellent mechanical properties. The alloy is also very corrosion-resistant and attract much interest in watchmaking and micromechanics. Now three scientists from EPFL’s Laboratory of Photonic Materials and Fiber Devices (FIMAP) \u2013 Ph.D. student In\u00e8s Richard, postdoc Wei Yan and Professor Fabien Sorin\u2014have given it a new purpose: they are using it to make electrodes for plastic fibers. Their paper, which was co-authored by Professor J\u00f6rg L\u00f6ffler from ETH Zurich, has been published in Nature Nanotechnology<\/a><\/i>. <\/p>\n

A thin electrical conductor <\/b>
\n“Our metallic glass is part of a new category of metals with an amorphous structure,” says Richard. “When the alloy is heated to a certain temperature, it first turns viscous and then becomes crystalline and solid.” The advantage is that while the alloy is in a viscous state, it can be stretched into a nanometric-sized, uniform shape that runs the length of the fiber. That’s a step up from the crystalline metals that are normally used\u2014they’re stretched while in a liquid state, which means they can break into droplets if their diameter gets too small.
\n“Thanks to this alloy and our work with Professor Vasiliki Tileli, who provided further insight into how the process works, we were able to create a very thin, electrically conductive fiber,” says Professor Sorin. “It’s just 40 nanometers thick\u2014that’s about 50 times smaller than a standard electrode fiber.”
\nMaking rats walk<\/b>
\nBecause the alloy is viscous, it can be combined with another liquid during the production process without the two mixing. “We added liquid selenium, which can detect light,” says Yan. “The alloy is highly conductive, and because thanks to the high quality of the interface between both materials, it also enhanced the fiber’s performance and sensitivity.”
\n“We also worked with Professors St\u00e9phanie Lacour and Gr\u00e9goire Courtine to test our metallic glass fibers on rats,” says Richard. Lacour helped develop a method for integrating the electrodes into chronic implants. Then Courtine’s lab tested the implants’ functionalities on rats. His researchers sent electrical impulses directly into the rats’ brains, causing them to move, and recorded the signals from their neurons. The metallic glass fibers developed at EPFL are designed for use in biomedical devices and electronics.<\/p>\n

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More information:<\/strong>
\n Wei Yan et al. Structured nanoscale metallic glass fibres with extreme aspect ratios, Nature Nanotechnology<\/i> (2020). DOI: 10.1038\/s41565-020-0747-9\n <\/div>\n

\n Citation<\/strong>:
\n Using viscous metals in micro fibers (2020, August 4)
\n retrieved 4 August 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-08-viscous-metals-micro-fibers.html<\/p>\n

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“#Using viscous metals in micro fibers” Credit: Wei Yan\/EPFL EPFL scientists have developed the first micro-structured fibers with a viscous metal inside\u2014a perfect example of what cross-disciplinary teamwork can achieve. Platinum, copper, nickel and phosphorous\u2014those are the components of an amorphous metal alloy with excellent mechanical properties. The alloy is also very corrosion-resistant and attract…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[22067,48449],"class_list":["post-40076","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-nanomaterials","tag-using-viscous-metals-in-micro-fibers"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/40076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=40076"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/40076\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=40076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=40076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=40076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}