2023
DOI: 10.1021/acsomega.2c06386
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Food Freshness Measurements and Product Distinguishing by a Portable Electronic Nose Based on Organic Field-Effect Transistors

Abstract: Determination of food freshness, which is the most ancient role of the human sense of smell, is still a challenge for compact and inexpensive electronic nose devices. Fast, sensitive, and reusable sensors are long-awaited in the food industry to replace slow, labor-intensive, and expensive bacteriological methods. In this work, we present microbiological verification of a novel approach to food quality monitoring and spoilage detection using an electronic nose based on organic field-effect transistors (OFETs) … Show more

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Cited by 17 publications
(4 citation statements)
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“…The sensors displayed a very short response time (3 s) and high sensitivity to the targeted VOCs, which were accurately discriminated by PCA data analysis. The application of metal porphyrins-based organic field effect transistors (OFET) in e-nose was demonstrated in identifying the biomarkers released during the spoilage of different meat and dairy products [121]. The four different arrays of FET sensors were realized by depositing a monolayer of a siloxane derivative of 1-benzothieno-benzothiophene by Langmuir-Blodgett (LB) deposition, which was the [118].…”
Section: Organic Nanomaterial-based E-nosementioning
confidence: 99%
See 1 more Smart Citation
“…The sensors displayed a very short response time (3 s) and high sensitivity to the targeted VOCs, which were accurately discriminated by PCA data analysis. The application of metal porphyrins-based organic field effect transistors (OFET) in e-nose was demonstrated in identifying the biomarkers released during the spoilage of different meat and dairy products [121]. The four different arrays of FET sensors were realized by depositing a monolayer of a siloxane derivative of 1-benzothieno-benzothiophene by Langmuir-Blodgett (LB) deposition, which was the [118].…”
Section: Organic Nanomaterial-based E-nosementioning
confidence: 99%
“…The variation of relative humidity is indicated in solid blue line (c). PCA score plot of the aroma classification of different food products into different biomarkers (d).Adapted from ref [121]…”
mentioning
confidence: 99%
“…These changes, induced by the adsorption of gas molecules onto the sensor’s surface, are used to ascertain the presence and concentration of the target gas. , In recent years, MOS sensors have become the primary choice for designing highly sensitive, stable, and low-cost gas sensors for real-life applications, thanks to their inherent physical and chemical properties . Additionally, organic field effect transistors (OFETs) offer the opportunity for ultrahigh sensitivity in gas sensor applications. …”
Section: Introductionmentioning
confidence: 99%
“…Metal-oxide semiconductor (MOS), optical, surface acoustic wave (SAW), and quartz crystal microbalance (QCM) devices are commonly employed, since they can be combined with different sensing film materials. The sensing film is the compound that interacts with VOCs through a physical–chemical mechanism, while the device converts such an interaction into an electrical signal (voltage or current) that can be quantified [ 13 , 14 , 15 , 16 ].…”
Section: Introductionmentioning
confidence: 99%