Terahertz technology and its applications in head and neck diseases

Shi, Shenggan; Shu-qin, Yuan; Zhou, Jun; Jiang, Peidu

doi:10.1016/j.isci.2023.107060

Cited by 19 publications

(5 citation statements)

References 89 publications

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“…It has also been reported that fs-THz radiation can regulate the expression of wound response genes by activating the TGF-β signaling pathway in mouse skin. 6 Thus, it is likely that TGF-β signaling is a key signaling pathway stimulated by diverse THz irradiation.…”

Section: Discussionmentioning

confidence: 99%

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0.263 terahertz irradiation induced genes expression changes in Caenorhabditis elegans

Shang,

Gao,

Zhang

et al. 2024

iScience

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Section: Discussionmentioning

confidence: 99%

“…2 , 3 , 4 There have also been many recent studies focusing on the interaction of THz waves with neurons and the neural system, indicating the neuromodulatory potential of THz waves in living systems. 5 , 6 , 7 , 8 …”

Section: Introductionmentioning

confidence: 99%

0.263 terahertz irradiation induced genes expression changes in Caenorhabditis elegans

Shang,

Gao,

Zhang

et al. 2024

iScience

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“…Terahertz (THz) spectroscopy, defined in the frequency interval from 0.1 to 10 THz, is a powerful and rapid spectroscopic technique with label-free and non-destructive characteristics [1]. Due to its strong penetration and molecular fingerprint properties, THz wave holds significant promise in diverse fields such as imaging [2], biomedical [3] and sensing [4]. Notably, the hydrogen bonding within molecules manifests its vibrational and rotational modes in the THz band, resulting in distinctive absorption features [5].…”

Section: Introductionmentioning

confidence: 99%

Metasurface-based sensor with terahertz molecular fingerprint enhancement in trace additives identification

Xue,

Zhang,

Lin

et al. 2024

J. Phys. D: Appl. Phys.

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Terahertz wave has gained considerable interest in biosensing with its unique spectral fingerprint characteristics. However, limited sensitivity confines its applications in trace-amount identification. In this article, a magnetic dipole metamaterial for strengthening molecular fingerprint in virtue of angle-scanning strategy is proposed, which is carefully designed by elaborately arranging symmetric condition of the dipole structures. The physical mechanism is elucidated by the Finite-Difference Time-Domain Method. In virtue of manipulating the incident angle, the signal of molecular fingerprint is outstandingly elevated. Consequently, three kinds of food additives including azodicarbonamide, sorbic acid and melamine can be simultaneously detected, and the corresponding identification limits are as low as 1.65ug.cm-2, 1.2ug.cm-2 and 1.66ug.cm-2, respectively. Our work offers a new train of thought in identifying trace-amount food additives and paves the way for more practical applications of THz wave in food industry.

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“…More recently, emerging techniques operating in the terahertz band, such as imaging and THz spectroscopy, due to their characteristics, are becoming important in this context. These techniques have been applied in various sectors, including the biomedical field [17], precision agriculture [18], food quality control [19,20], cultural heritage [21,22] and aerospace industry [23,24]. Finally, techniques based on terahertz spectroscopy have been applied for the detection of hazardous mycotoxins, including aflatoxins, in agricultural food products [25], such as almonds.…”

Section: Introductionmentioning

confidence: 99%

THz Data Analysis and Self-Organizing Map (SOM) for the Quality Assessment of Hazelnuts

Greco,

Giarnetti,

Giovenale

et al. 2024

Applied Sciences

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In recent years, the use of techniques based on electromagnetic radiation as an investigative tool in the agri-food industry has grown considerably, and between them, the application of imaging and THz spectroscopy has gained significance in the field of food quality control. This study presents the development of an experimental setup operating in transmission mode within the frequency range of 18 to 40 GHz, which was specifically designed for assessing various quality parameters of hazelnuts. The THz measurements were conducted to distinguish between healthy and rotten hazelnut samples. Two different data analysis techniques were employed and compared: a traditional approach based on data matrix manipulation and curve fitting for parameter extrapolation, and the utilization of a Self-Organizing Map (SOM), for which we use a neural network commonly known as the Kohonen neural network, which is recognized for its efficacy in analyzing THz measurement data. The classification of hazelnuts based on their quality was performed using these techniques. The results obtained from the comparative analysis of coding efforts, analysis times, and outcomes shed light on the potential applications of each method. The findings demonstrate that THz spectroscopy is an effective technique for quality assessment in hazelnuts, and this research serves to clarify the suitability of each analysis technique.

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Terahertz technology and its applications in head and neck diseases

Cited by 19 publications

References 89 publications

0.263 terahertz irradiation induced genes expression changes in Caenorhabditis elegans

0.263 terahertz irradiation induced genes expression changes in Caenorhabditis elegans

Metasurface-based sensor with terahertz molecular fingerprint enhancement in trace additives identification

THz Data Analysis and Self-Organizing Map (SOM) for the Quality Assessment of Hazelnuts

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