These New Temporary Tattoos Let You Create On-Skin Devices

DuoSkin capacitive touch slider made from gold and silver leaf.  (Photo: Jimmy Day)
DuoSkin capacitive touch slider made from gold and silver leaf. (Photo: Jimmy Day)

“I think there is no fashion statement greater than being able to change how your skin looks,” says artist/engineer Cindy Hsin-Liu Kao in the video explaining the idea behind the new on-skin interface DuoSkin developed by MIT Media Lab in collaboration with Microsoft Research. DuoSkin‘s wearable tech takes the form of user-designed, gold-leaf temporary tattoos. She goes on to explain that the designers wanted to make DuoSkin‘s technology easily accessible to anyone. The fabrication process “enables anyone to create customized functional devices that can be attached directly on their skin” using graphic design software, a vinyl cutter, and gold leaf

From DuoSkin’s website:

DuoSkin’s three-step workflow. Step 1: (a) Sketching skin circuitry with graphic design software. Step 2: (b) Fabrication, which includes (c) creating stencils of the circuitry, (d) applying gold leaf as the conductive material, and (e) mounting electronics. Step 3: (f) After completing the circuitry, we apply the DuoSkin device to the user’s skin through water-transfer.

 

 

DuoSkin allows users to create three types of user interfaces: 1) input on skin through capacitive touch sensing,2) output on skin through thermochromic resistive heating circuitry, and 3) wireless communication through NFC.  (Photo: Jimmy Day)
DuoSkin allows users to create three types of user interfaces: 1) input on skin through capacitive touch sensing,2) output on skin through thermochromic resistive heating circuitry, and 3) wireless communication through NFC. (Photo: Jimmy Day)

The tattoos can take one of three forms, input, output, or communication. The input interface is a lot like the user interface we all know, featuring buttons, sliders, and trackpads to control a music or video player, for example; output uses thermochromic pigments that react to the user’s body temperature to produce changing colors giving it a mood ring quality; and communication lets users read data directly off the skin using NFC tags.

The designers wanted their product to be user-friendly and customizable, both aesthetically and functionally, and by making the fabrication process so open, anyone with a desire to create uniquely beautiful devices on their skin, can. In a paper outlining the development and testing of DuoSkin they explain their hope for the tech’s future:

It is our vision that future on-skin electronics will no longer be black-boxed and mystified; but the will converge towards the user friendliness, extensibility, and aesthetics of body decorations, forming a DuoSkin integrated to an extent it has seemingly disappeared.