Researchers develop multi-layer silicone membrane capable of mimicking human skin

Taking touch technologies to the next level, researchers have now developed a multi-layer, silicone membrane capable of mimicking the layers present in human skin.

The Skin-On interface, developed by researchers  mimics human skin in appearance but also in sensing resolution.

The researchers adopted a bio-driven approach to developing a surface textured layer, an electrode layer of conductive threads and a hypodermic layer. Not only is the interface more natural than a rigid casing, but it can also detect a plethora of gestures made by the end-users. multi-layer, silicone membrane that mimics the layers present in human skin.

This is made up of a sAs a result, the artificial skin allows devices to 'feel' the user's grasp -- its pressure and location and can detect interactions such as tickling, caressing, even twisting and pinching.

"This is the first time we have the opportunity to add skin to our interactive devices. The idea is perhaps a bit surprising, but the skin is an interface we are highly familiar with so why not use it and its richness with the devices we use every day?" said an Associate Professor who supervised the research.

"Artificial skin has been widely studied in the field of Robotics but with a focus on safety, sensing or cosmetic aims. This is the first research we are aware of that looks at exploiting realistic artificial skin as a new input method for augmenting devices," said  the lead author.

In the study, researchers created a phone case, computer touchpad, and smartwatch to demonstrate how touch gestures on the Skin-On interface can convey expressive messages for computer-mediated communication with humans or virtual characters.

"One of the main uses of smartphones is mediated communication, using text, voice, video, or a combination. We implemented a messaging application where users can express rich tactile emotions on artificial skin. The intensity of the touch controls the size of the emojis. A strong grip conveys anger while tickling the skin displays a laughing emoji and tapping creates a surprised emoji" said the researcher.

"This work explores the intersection between man and machine. We have seen many works trying to augment humans with parts of machines, here we look at the other way around and try to make the devices we use every day more like us, i.e. human-like," said a Dr.

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Microneedle patch set to replace standard TB skin test

This test is painless and easier to administer than the traditional skin 

test with a hypodermic needle.

A team of researchers has developed a patch with tiny, biodegradable needles that are
able to penetrate  the skin and precisely deliver a TB test.

Senior author , said that with a microneedle test there’s little room for user error, because
the depth of delivery is determined by the microneedle length rather than the needle-
insertion angle. He said that this  test is painless and easier to administer than the
traditional skin test with a hypodermic needle

Researchers say that their test is going to be easier to use, less painful and has the
potential to be more successful than the standard TB skin test.

The researchers tested the patch on guinea pigs and found that after the microneedles
were inserted using the patch, the skin reaction associated with having a tuberculosis
infection was the same as when using the standard hypodermic needle test.

He said that a microneedle patch test has potential as a simpler, more reliable option than
the traditional tuberculosis test for children who are needle-shy, or in developing countries where medical care is limited.

He added that it’s like putting on a bandage, as long as the patch is applied on the skin,
the test is always delivered to the same depth underneath the skin.

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