{"id":79431,"date":"2020-07-31T17:05:49","date_gmt":"2020-07-31T15:05:49","guid":{"rendered":"http:\/\/www.reunion68.se\/?p=79431"},"modified":"2020-07-21T14:49:28","modified_gmt":"2020-07-21T12:49:28","slug":"13-05-53","status":"publish","type":"post","link":"https:\/\/www.reunion68.se\/?p=79431","title":{"rendered":"Israeli invents self-healing artificial electronic skin"},"content":{"rendered":"
\"\"<\/a>Israeli invents self-healing artificial electronic skin<\/a><\/strong><\/span><\/h5>\n

Abigail Klein Leichman<\/strong><\/span><\/p>\n

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The new polymeric elastic and waterproof and can heal itself, just like human skin does after an injury.<\/strong><\/h5>\n

Self-healing high-tech \u201cskin\u201d developed by Technion doctoral student Muhammad Khatib. Photo: courtesy<\/em><\/span><\/p>\n

A doctoral student at the Technion \u2013 Israel Institute of Technology in Haifa has invented a soft polymer that could be used as a self-healing high-tech \u201cskin.\u201d<\/span><\/p>\n

Muhammad Khatib\u2019s polymer is elastic and waterproof. It can heal itself if scratched, cut or twisted, or in the event of a disruption to its electrical conductivity and chemical sensing capabilities.<\/span><\/p>\n

This \u201ce-skin\u201d could be used in a range of applications in the fields of robotics, prosthetics and wearable devices.<\/span><\/p>\n

Khatib, who conducts his research at the Wolfson Faculty of Chemical Engineering at the Technion under the guidance of Prof. Hossam Haick, presented his innovative inventions in two papers in the journals Advanced Materials<\/a><\/strong><\/span> and Advanced Functional Materials<\/a><\/strong><\/span>.<\/span><\/p>\n

Muhammad Khatib<\/strong>, inventor of e-skin, at the Technion-Israel Institute of Technology. Photo: courtesy<\/em><\/span><\/p>\n

\u201cThe e\u2010skin is empowered with a novel self\u2010repair capability that consists of an intrinsic mechanism for efficient self\u2010healing of small\u2010scale damages as well as an extrinsic mechanism for damage mapping and on\u2010demand self\u2010healing of big\u2010scale damages in designated locations,\u201d writes Khatib.<\/span><\/p>\n

\u201cThe electronic platform lays down the foundation for the development of a new subcategory of self\u2010healing devices in which electronic circuit design is used for self\u2010monitoring, healing, and restoring proper device function.\u201d<\/span><\/p>\n

Inspired by natural mammal skin, scientists have put a great deal of effort into developing artificial electronic materials and devices with similar properties. These types of systems require soft materials whose functioning is not permanently harmed by distortions or tears. This is the problem that motivated Khatib to invent polymers that can heal themselves, just like human skin does after an injury.<\/span><\/p>\n

Khatib\u2019s self\u2010healing stretchable conductive pathways were made by embedding silver nanowires or carbon nanotubes into the surface of the polymer.<\/span><\/p>\n

Self-healing even under water<\/strong><\/h4>\n

Khatib\u2019s first project, presented in Advanced Functional Materials<\/em>, describes the planning, building and implementation of elastomer \u2013 elastic and resilient polymer \u2013 that is water resistant, strong and capable of stretching to 1,100 percent of its original length without tearing.<\/span><\/p>\n

It can heal itself, even when soaked in tapwater, seawater, and water with varying levels of acidity. If mechanical damage to the polymer occurs when it is submerged in water, it knows how to heal itself and prevent electrical leakages from the device to the water.<\/span><\/p>\n

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