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AuthorZhu, Yongheng
AuthorZhao, Yong
AuthorMa, Junhao
AuthorCheng, Xiaowei
AuthorXie, Jing
AuthorXu, Pengcheng
AuthorLiu, Haiquan
AuthorLiu, Hongping
AuthorZhang, Haijiao
AuthorWu, Minghong
AuthorElzatahry, Ahmed A.
AuthorAlghamdi, Abdulaziz
AuthorDeng, Yonghui
AuthorZhao, Dongyuan
Available date2021-01-25T06:45:43Z
Publication Date2017
Publication NameJournal of the American Chemical Society
ResourceScopus
ISSN27863
URIhttp://dx.doi.org/10.1021/jacs.7b04221
URIhttp://hdl.handle.net/10576/17383
AbstractFoodborne pathogens like Listeria monocytogenes can cause various illnesses and pose a serious threat to public health. They produce species-specific microbial volatile organic compounds, i.e., the biomarkers, making it possible to indirectly measure microbial contamination in foodstuff. Herein, highly ordered mesoporous tungsten oxides with high surface areas and tunable pores have been synthesized and used as sensing materials to achieve an exceptionally sensitive and selective detection of trace Listeria monocytogenes. The mesoporous WO3-based chemiresistive sensors exhibit a rapid response, superior sensitivity, and highly selective detection of 3-hydroxy-2-butanone. The chemical mechanism study reveals that acetic acid is the main product generated by the surface catalytic reaction of the biomarker molecule over mesoporous WO3. Furthermore, by using the mesoporous WO3-based sensors, a rapid bacteria detection was achieved, with a high sensitivity, a linear relationship in a broad range, and a high specificity for Listeria monocytogenes. Such a good gas sensing performance foresees the great potential application of mesoporous WO3-based sensors for fast and effective detection of microbial contamination for the safety of food, water safety and public health.
SponsorThis work was supported by the NSF of China (51372041, 51422202 and 51432004), the Shu Guang Project (13SG02) supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation, Shanghai Sci. & Tech. Committee (14JC1400700) Youth Top-notch Talent Support Program of China, China Postdoctoral Science Foundation (KLH1615138), Shanghai Nature Science Foundation of China (14ZR1416600) and the State Key Laboratory of Transducer Technology of China (Grant No. SKT1503). The authors extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP# 0094. The authors thank Prof. Guangrong Zhou for assistance in TEM characterization.
Languageen
PublisherAmerican Chemical Society
SubjectGas Sensor
Acetone
Triethylamine
TitleMesoporous Tungsten Oxides with Crystalline Framework for Highly Sensitive and Selective Detection of Foodborne Pathogens
TypeArticle
Pagination10365-10373
Issue Number30
Volume Number139


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