The method uses microneedles smaller than a grain of sand.
Tattooing went from a subculture to pop culture in the past decades. Tattoo artists use a mechanized needle to puncture the skin and inject ink into the dermis or second layer of skin- this is not only painful but it's time-consuming.
Now researchers at the Georgia Institute of Technology have developed a painless and bloodless tattoo patch that's simple enough for people to stick to themselves, according to aThe patch consists of microneedles that are each smaller than a grain of sand and are made of tattoo ink encased in a dissolvable matrix. The microneedle tattoo patch can have applications from medical alerts to tracking neutered animals to cosmetics.into the deeper layer of the skin.
"This could be a way not only to make medical tattoos more accessible but also to create new opportunities for cosmetic tattoos because of the ease of administration," said Mark Prausnitz.The tattoo patches can be used as a medical alert device and are designed with privacy in mind. The patches are either light or temperature sensitive so that theor at high temperatures. This provides patients with privacy, revealing their tattoos only when desired.
Additionally, the tattoo patches could be used as a means to cover burns and scars. This could help to improve a patient's appearance and restore their self-esteem after a traumatic experience Encoding information on the skin of animals can also benefit from the new tattoos. Rather than clipping the ear or applying an ear tag to animals to indicate, say, sterilization status, a painless and discreet tattoo can be offered as an alternative.
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