Case Western Reserve University researchers are leading the development of a 'smart packaging' system to monitor temperature fluctuations, moisture changes and pathogens in perishable food products during transportation.
To make this happen, Cao and his team came up with what they call a desiccant-based triboelectric nanogenerator to extend the serving time of the sensing system.—often between two objects sliding against each other—into electricity.
The team designed a paperboard-based honeycomb frame to store the desiccant materials—now also used to create electricity as they bounce around inside the honeycomb. Cao said that while some modern transport companies already use sensors to record temperature, humidity and, the traditional batteries required to operate those systems are costly, heavy and can contribute to environmental pollution. Many of those systems don't provide real-time data to detect food spoilage, Cao said. Existing small, portable systems can only detect environment conditions within a very limited period.
The team is now assembling a functioning prototype; Cao said he hopes to scale up production and begin marketing it over the next five years. Cao and his team are focusing on detecting and preventing food spoilage, but he believes the technology could also provide benefits for shipping vaccines. The system could provide companies andYaokun Pang et al, Toward self-powered integrated smart packaging system − Desiccant-based triboelectric nanogenerators,
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