Ultra-efficient trimethylamine gas sensor based on Au nanoparticles sensitized WO3 nanosheets for rapid assessment of seafood freshness

Cheng Zhao; Jiabin Shen; Shanshan Xu; Jing Wei; Haiquan Liu; Siqi Xie; Yingjie Pan; Yong Zhao; Yongheng Zhu

doi:10.1016/j.foodchem.2022.133318

Ultra-efficient trimethylamine gas sensor based on Au nanoparticles sensitized WO₃ nanosheets for rapid assessment of seafood freshness

Food Chem. 2022 Oct 30:392:133318. doi: 10.1016/j.foodchem.2022.133318. Epub 2022 May 26.

Authors

Cheng Zhao¹, Jiabin Shen¹, Shanshan Xu², Jing Wei³, Haiquan Liu¹, Siqi Xie¹, Yingjie Pan¹, Yong Zhao⁴, Yongheng Zhu⁵

Affiliations

¹ College of Food Science and Technology, Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation Shanghai Ocean University, Shanghai 201306, China.
² State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.
³ Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
⁴ College of Food Science and Technology, Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation Shanghai Ocean University, Shanghai 201306, China. Electronic address: yzhao@shou.edu.cn.
⁵ College of Food Science and Technology, Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation Shanghai Ocean University, Shanghai 201306, China. Electronic address: yh-zhu@shou.edu.cn.

PMID: 35640429
DOI: 10.1016/j.foodchem.2022.133318

Abstract

Trimethylamine (TMA) is an organic amine gas used as an important index to assess the seafood freshness. In this work, an ultra-efficient trimethylamine gas sensor was constructed by ultrasonic treatment loading of Au nanoparticles (∼4 nm) on WO₃ nanosheets prepared by solvothermal self-assembly method. The response of the sensor to 25 ppm TMA was as high as 217.72 (R_air/R_gas) at 300 ℃. In addition, the Au/WO₃ nanosheets sensor exhibited rapid response-recovery time (8 s/6 s), low detection limit (0.5 ppm), and high selective detection of TMA. Moreover, the composition of volatiles produced by decay of Larimichthys crocea (0-15 days) was examined, which proved that the detection of TMA by the Au/WO₃ sensor can evaluate the freshness of Larimichthys crocea. Such a magnificent gas sensing performance reveals that the Au/WO₃ sensor has remarkable application potential in rapid and non-destructive seafood freshness assessment on the spot.

Keywords: Au nanoparticles; Gas sensor; Seafood freshness; Trimethylamine detection; WO(3) nanosheets.

MeSH terms

Gold*
Metal Nanoparticles*
Methylamines
Seafood / analysis

Substances

Methylamines
Gold
trimethylamine