Highly Sensitive Colorimetric Ammonia Sensors Based on Polydiacetylene/Zinc Oxide Nanopellet-Embedded PDMS Films for Meat Spoilage Detection
Issued Date
2023-01-01
Resource Type
eISSN
26376105
Scopus ID
2-s2.0-85171869087
Journal Title
ACS Applied Polymer Materials
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Applied Polymer Materials (2023)
Suggested Citation
Siribunbandal P., Osotchan T., Kim Y.H., Jaisutti R. Highly Sensitive Colorimetric Ammonia Sensors Based on Polydiacetylene/Zinc Oxide Nanopellet-Embedded PDMS Films for Meat Spoilage Detection. ACS Applied Polymer Materials (2023). doi:10.1021/acsapm.3c00993 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/90257
Title
Highly Sensitive Colorimetric Ammonia Sensors Based on Polydiacetylene/Zinc Oxide Nanopellet-Embedded PDMS Films for Meat Spoilage Detection
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Simple-to-use colorimetric sensors that can detect the release of gases from food spoilage are of great interest in food safety, as a shelf-life indicator and for food waste management. Herein, we demonstrate polydiacetylene/zinc oxide nanopellet (PDA/ZnO)-embedded polydimethylsiloxane (PDMS) films for colorimetric sensing of meat spoilage based on ammonia gas detection. In particular, by optimizing the weight ratio of ZnO nanopellets in the composite film (15 wt %), a high colorimetric response of ∼51.5% can be achieved for 200 ppm ammonia gas exposure and observed by the naked eye. The PDA/ZnO-embedded PDMS film sensors exhibited a high thermal stability up to 100 °C and a long-term storage stability up to 180 days. In addition, the sensors showed excellent selectivity for ammonia gas when compared with other volatile organic compounds. Using the PDA/ZnO-embedded PDMS sensors, we investigated the degree of food spoilage of chicken and pork meat under various storage conditions. The color transition can be observed with the food storage period, indicating that the PDA/ZnO-embedded PDMS sensors can be potentially applied as colorimetric sensors for meat freshness indicators in smart food packaging.