Wearable sensor technology is developing rapidly. Sensors that can measure a person’s glucose (sugar) level, blood pressure or heart rate will soon enter our lives as electronic skin. Researchers at MIT, on the other hand, developed the first chipless and wireless connection e-skin.
Chipless electronic skin transmits biological signals wirelessly
Most wearable technology today can detect biological signals. For example, smartwatches powered by Bluetooth powered by small batteries can keep track of heart rate, blood oxygen level and exercise statistics.
But these classic chips and power supplies; will probably be insufficient for smaller, thin, flexible forms. MIT researchers have managed to develop a wearable sensor that can communicate wirelessly, without the need for an onboard chip or battery.
The new wearable sensor technology, defined as Scotch Tape (Scottish Tape) and called “e-skin” (electronic skin), consists of a semiconductor film. It was stated that e-skin can generate electrical signal against mechanical stress and also create mechanical vibration against electrical impulse.
The new sensor, produced with a gold layer, establishes bidirectional communication. This paves the way for it to detect biological signals and transmit them wirelessly. The researchers said they were able to detect heart rate or certain biological signals, such as salt found in sweat.
Chip e-leather design
“We’ve demonstrated sodium sensing, but if you change the sensing membrane, you can detect any target biomarker like glucose or cortisol related to stress levels,” MIT researcher Jun Min Suh said.
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