TY - JOUR
T1 - Self-powered flexible oxygen sensors for intelligent food packaging
AU - Won, Seoyeon
AU - Won, Keehoon
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/9
Y1 - 2021/9
N2 - A self-powered flexible oxygen gas sensor has been developed for intelligent food packaging, which provides users with information on quality and safety of packaged food during storage and transport. Unlike most conventional oxygen sensors for intelligent packaging, this sensor based on an electrochemical battery requires no external power sources for oxygen sensing. The self-powered flexible oxygen sensor was composed of three layers: a silver-deposited oriented polypropylene film (cathode), a zinc sheet (anode), and an adhesive gel electrolyte. This film-type sensor was flexible, robust, and lightweight. This self-powered sensor generated the output voltage, which was linearly proportional to the oxygen gas concentration in the range of 0–21% (R2 = 0.999) with a sensitivity of 18 mV/% O2 and a good repeatability. The oxygen gas concentrations measured with this sensor were in good agreement with those with an expensive oxygen gas analyzer. Due to its good features and performance, it is expected that the self-powered flexible oxygen sensor will be commercially applied to intelligent food packaging for healthier and safer foods.
AB - A self-powered flexible oxygen gas sensor has been developed for intelligent food packaging, which provides users with information on quality and safety of packaged food during storage and transport. Unlike most conventional oxygen sensors for intelligent packaging, this sensor based on an electrochemical battery requires no external power sources for oxygen sensing. The self-powered flexible oxygen sensor was composed of three layers: a silver-deposited oriented polypropylene film (cathode), a zinc sheet (anode), and an adhesive gel electrolyte. This film-type sensor was flexible, robust, and lightweight. This self-powered sensor generated the output voltage, which was linearly proportional to the oxygen gas concentration in the range of 0–21% (R2 = 0.999) with a sensitivity of 18 mV/% O2 and a good repeatability. The oxygen gas concentrations measured with this sensor were in good agreement with those with an expensive oxygen gas analyzer. Due to its good features and performance, it is expected that the self-powered flexible oxygen sensor will be commercially applied to intelligent food packaging for healthier and safer foods.
KW - Flexible sensor
KW - Intelligent food packaging
KW - Oxygen gas sensor
KW - Self-powered sensor
UR - http://www.scopus.com/inward/record.url?scp=85112433382&partnerID=8YFLogxK
U2 - 10.1016/j.fpsl.2021.100713
DO - 10.1016/j.fpsl.2021.100713
M3 - Article
AN - SCOPUS:85112433382
SN - 2214-2894
VL - 29
JO - Food Packaging and Shelf Life
JF - Food Packaging and Shelf Life
M1 - 100713
ER -