Japanese researchers have proposed an idea to use stretchy circuits made from rubber and nanotubes to create an "e-skin", which will be flexible enough to completely cover a robot without limiting its movement.
"Without human skin-like sensitivity, robots cannot be used in everyday life. Imagine the danger if a robot did not recognise when it had accidentally bumped into a young child," New Scientist magazine quoted Takao Someya of the University of Tokyo as saying.
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He has already developed a rubbery conductor, that can be stretched by 38 per cent without any drop in its conductivity.
He says that a net of it was still working after being stretched by 134 per cent, though with a drop in conductivity.
Someya has revealed that the new material is made by mixing conducting carbon nanotubes with rubber.
![Tendon Injuries' Diagnosis may Be Revolutionised by Pneumatic Robot]( "Tendon Injuries' Diagnosis may Be Revolutionised by Pneumatic Robot")
Initial trials on four healthy volunteers suggest that a pneumatic robot can position patients' limbs inside an MRI scanner, and allow physicians to get sharp images of tendons that
To prevent the nanotubes clumping together, the researchers have devised a technique that uses an iconic liquid, consisting of charged ions and not molecules like most liquids.
The novel technique allows the researchers to add more nanotubes without fear that a high density of them would form lumps.
The final material is around 20 per cent nanotubes by weight, and current flows through it by hopping from nanotube to nanotube.
Someya says that the time during which a route across the material exists when it is stretched and the tubes are pulled apart is maximised by using long nanotubes.
"In any area where you need electronics that can stretch and bend without compromising performance, for example in wearable electronics to monitor movement, this is going to be quite a breakthrough," says Gordon Wallace of the University of Wollongong, Australia.
Someya believes that the nanotube-based conductor is likely to be more physically robust, a requirement for applications like an e-skin in which speed is not critical.
He also says that the material is cheaper to make because the rubber and nanotube solution can be printed out in sheets.
A research article has been published in the journal Science.
Source: ANI
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Someya has revealed that the new material is made by mixing conducting carbon nanotubes with rubber.
Tendon Injuries' Diagnosis may Be Revolutionised by Pneumatic Robot
Initial trials on four healthy volunteers suggest that a pneumatic robot can position patients' limbs inside an MRI scanner, and allow physicians to get sharp images of tendons that
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To prevent the nanotubes clumping together, the researchers have devised a technique that uses an iconic liquid, consisting of charged ions and not molecules like most liquids.
The novel technique allows the researchers to add more nanotubes without fear that a high density of them would form lumps.
The final material is around 20 per cent nanotubes by weight, and current flows through it by hopping from nanotube to nanotube.
Someya says that the time during which a route across the material exists when it is stretched and the tubes are pulled apart is maximised by using long nanotubes.
"In any area where you need electronics that can stretch and bend without compromising performance, for example in wearable electronics to monitor movement, this is going to be quite a breakthrough," says Gordon Wallace of the University of Wollongong, Australia.
Someya believes that the nanotube-based conductor is likely to be more physically robust, a requirement for applications like an e-skin in which speed is not critical.
He also says that the material is cheaper to make because the rubber and nanotube solution can be printed out in sheets.
A research article has been published in the journal Science.
Source: ANI
SRM
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