Sensor from modified NFC chip

Sensor that alerts your smartphone as food begins to spoil, can mark the end of ‘best-before’ dates.   Take a look at the video…

Massachusetts Institute of Technology chemists have developed a new sensor that could inform your smartphone when food in your fridge has ‘expired.’

The new sensor, a modified NFC chip, can transmit information on hazardous chemicals or food spoilage to a smartphone.

These inexpensive sensors could be widely deployed, making it easier to monitor public spaces or detect food spoilage in warehouses. Using this system, the researchers have demonstrated that they can detect gaseous ammonia, hydrogen peroxide, and cyclohexanone, among other gases.

Timothy Swager, the John D. MacArthur Professor of Chemistry at MIT, said:

“The beauty of these sensors is that they are really cheap. You put them up, they sit there, and then you come around and read them. There’s no wiring involved. There’s no power. You can get quite imaginative as to what you might want to do with a technology like this.”

Unlike commercially available chemiresistors, the sensors developed in Swager’s lab require almost no energy and can function at ambient temperatures.

Swager added:

“This would allow us to put sensors in many different environments or in many different devices.”


source Massachusetts Institute of Technology