Switzerland to develop edible temperature sensor: to solve the problem of food preservation

Keeping fresh food at a fresh temperature during transport is a harder issue than anyone thought - but the Swiss are doing the job. One of their team invented a biodegradable Temperature Sensor so it ensures that food is fresh from the beginning until it reaches your mouth.

Why do we need a Temperature sensor?

To put it simply, in order to keep fresh food, they are kept at a certain low temperature, this time if you feel the temperature by hand, it is a very painful thing. However, if you can monitor it wirelessly in real time with a temperature sensor, you save time and effort.

Although this is already done, for example, with RFID tags and the like, the labels are made of materials that are not recommended for consumption and may even be toxic.

Giovanni Salvatore, a Zurich researcher whose solution is to make an ultrathin sensor with a material that humans can safely digest.

Today, he and his team published research in Advanced Functional Materials.

They managed to make a sensor that was only 16 microns thick - by contrast, human hair was around 100 microns. The filament is made of magnesium, they said at a news conference, "(magnesium) is an important part of our diet." Of course, why not?

Also, the edible temperature sensor uses silicon dioxide and silicon nitride, which are harmless to the human body and are compostable polymers made of corn and potato starch that can be brought together.

The whole thing can be bent, stretched, and even crumpled to work.

So when you're at a random selection of apples, fish, bananas, etc., put them in the freezer in a truck or on board. Then you can check the actual temperature of the food outside the freezer. When they reach their destination, these temperature sensors eventually degrade in your body.

Of course, the power supplies and wireless components used in the process are not biodegradable - they are located elsewhere and are connected to a zinc cable (which may also be an important part of our diet). This is the problem, they only solve half of the problem. But this is better than nothing.