A research group led by Professor Masaya Nogi of the Institute of Scientific and Industrial Research, Osaka University, and Takaaki Kasuga, a doctoral student at the Graduate School of Engineering, Osaka University, has succeeded in developing an IoT device made of paper cellulose nanofibers.After use, it has the characteristic of returning to the soil in about one month even if left in the natural environment, and there is no need to collect it.
According to Osaka University, the research group applied transparent paper nanopaper derived from wood to the base of IoT devices, humidity sensors for collecting information, and capacitor dielectric layers for transmitting information, and combined the electronic components of these papers for IoT. Succeeded in developing the device.More than 95% of the total volume decomposes in the soil.
This development can be said to be a prototype of the realization of IoT devices using paper as a material, and if an IoT device that returns to the soil with even higher performance is realized in the future, it can be installed anywhere like flowers that color life, and it is in harmony with the natural cycle. Environmental monitoring becomes possible.
IoT devices that can collect various information and connect to various fields in all places such as agriculture, manufacturing, and medical sites are becoming indispensable.However, it is thought that the collection of IoT devices that have reached the end of their life and environmental pollution caused by electronic waste will become problems.In particular, as the functions of IoT devices improve, the number of parts increases and the burden of disassembly and disposal becomes heavier, so the need for consideration of countermeasures is increasing.
Paper information:[ACS Applied Materials & Interfaces] Return to the Soil ”Nanopaper Sensor Device for Hyperdense Sensor Networks
