Paper sensors for advanced smart packaging: route to detection on the shelf and in real ambient

HIGHLIGHTS

• What: As a fundamental step for the validation of this technology, the authors here investigate the performances of printed paper sensors in the applicative scenario, i.e. in the real time monitoring of the vapours developed by fresh food inside the packaging. If the authors investigate the sensing electrode from a tilted view (c) and top view (d), the authors can distinguish the pure cellulose fibres on the left (brighter thanks to their low conductivity) from the ink-coated cellulose on the right (darker thanks to higher conductivity). The authors have prepared cellulose-based sensors by means . . .
  

   

  

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