Electric schnoz can smell when your food's gone bad
7 hours ago
- #food safety
- #electronic nose
- #sensor technology
- UC Berkeley researchers developed an electronic nose with 16 gas sensors that detects gases from harmful bacteria and food allergens.
- The device uses machine learning to recognize scents from various foods and can identify spoilage in items like raw chicken, milk, and eggs.
- It can detect trace amounts, such as 0.05 grams of walnut, but hasn't been tested in complex environments like mixed foods in a refrigerator.
- Carbon nanotubes enable room-temperature operation and simpler fabrication via drop casting, allowing diverse gas-sensitive materials.
- A portable version with an iPhone app is being developed for broader testing and improved sensitivity and reliability.