Sensing food temperature and freshness using laser-induced graphene on eco-friendly and biodegradable commercial paper
https://phys.org/news/2022-10-food-temperature-freshness-laser-induced-graphene.html
"synthesizing graphene through local thermal reaction by irradiating laser on carbon-based eco-friendly paper substrate... sensor produced directly on substrate made of cellulose used for food packaging without additional processing... platform that can detect the state of food in continuous real time. Laser-induced graphene... allotropes of carbon like carbon nanotubes, fullerenes, and diamonds... electron mobility enables LIG to sense temperature and high specific surface area allows LIG to detect gas molecules"
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