On the Prospect of Application of Point-Contact Sensors to Solving the Global Security Problems: An Analytical Review

Kamarchuk, G. V.; Pospelov, А. P.; Savytskyi, A.; Gudimenko, V.A.; Vakula, V. L.; Herus, Anna; Harbuz, D. A.; Kamarchuk, L. V.; Pereira, Mauro

doi:10.1007/978-94-024-2082-1_15

Cited by 2 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, operation in ambient conditions also has great prospects for practical use. For example, remote detection of human breath may be of great interest for the development of detectors of human emotional states, which can be used in public spaces, such as airports, etc., to help prevent terrorist attacks [49]. As our preliminary studies have shown, a change in the human breath pro le caused by a change in the emotional state cannot be hidden.…”

Section: Resultsmentioning

confidence: 90%

“…The spectral response of quantum point-contact sensors [37,49] re ects the fundamental properties of Yanson point contacts comprehensively studied in the Yanson point-contact spectroscopy. The principle of operation of a quantum point-contact sensor in the spectral mode of recording a response signal can be illustrated by analysis of a typical spectrum of electron-phonon interaction in a metal recorded during spectral studies [34,36].…”

Section: The Problem Analysismentioning

confidence: 99%

See 1 more Smart Citation

Quantum mechanisms for selective detection in complex gas mixtures with conductive sensors: analysis of the problem and new results

Kamarchuk

Pospelov

Kamarchuk

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

In this paper, we consider new quantum mechanisms for selective detection in complex gaseous media which provide the highest possible efficiency of quantum sensors. On the basis of these quantum mechanisms, the concepts of quantum detection and innovative methods of analysis are developed, which are virtually impossible to implement in the conventional conductive sensors and nanosensors. Examples of original solutions to problems in the field of detection and analysis of human breath using point-contact sensors are considered. A new method of analysis based on detection of metastable quantum states of the "point-contact sensor – breath" system in dynamic mode is proposed. The conductance histogram of dendritic Yanson point contacts recorded for this system is a unique energy signature of breath which allows differentiation between the states of human body. We demonstrate that nanosized Yanson point contacts, which, thanks to their quantum properties, can replace a massive spectrometer, open up wide opportunities for solving complex problems in the field of breath analysis using a new generation of portable high-tech quantum sensor devices.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: The Problem Analysismentioning

confidence: 99%

Quantum mechanisms for selective detection in complex gas mixtures with conductive sensors: analysis of the problem and new results

Kamarchuk

Pospelov

Kamarchuk

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…These factors determine the spectral capabilities of point contacts and are behind their sensor effects. Yanson point contacts not only display quantum properties, but also can serve as model objects for studying conductance quantization under various conditions [32][33][34][35]. It is the unique combination of spectral and quantum properties of Yanson point contacts which is responsible for the original sensor effects that make pointcontact sensors so drastically different from conventional sensors exploiting the principle of changing electrical conductance [27].…”

Section: Introductionmentioning

confidence: 99%

Noninvasive real-time breath test for controlling hormonal background of the human body: detection of serotonin and melatonin with quantum point-contact sensors

Kamarchuk¹,

Pospelov²,

Harbuz³

et al. 2021

J. Breath Res.

View full text Add to dashboard Cite

Significant progress in development of noninvasive diagnostic tools based on breath analysis can be expected if one employs a real-time detection method based on finding a spectral breath profile which would contain some energy characteristics of the analyzed gas mixture. Using the fundamental energy parameters of a quantum system, it is possible to determine with a high accuracy its quantitative and qualitative composition. Among the most efficient tools to measure energy characteristics of quantum systems are sensors based on Yanson point contacts. This paper reports the results of serotonin and melatonin detection as an example of testing the human hormonal background with point-contact sensors, which have already demonstrated their high efficiency in detecting carcinogenic strains of Helicobacter pylori and selective detection of complex gas mixtures. When comparing the values of serotonin and melatonin with the characteristic parameters of the spectral profile of the exhaled breath of each patient, high correlation dependences of the concentration of serotonin and melatonin with a number of characteristic parameters of the response curve of the point-contact sensor were found. The performed correlation analysis was complemented with the regression analysis. As a result, empiric regression relations were proposed to realize in practice the new non-invasive breath test for evaluation of the human hormonal background. Registration of the patient’s breath profile using point-contact sensors makes it possible to easily monitor the dynamics of changes in the human hormonal background and perform a quantitative evaluation of serotonin and melatonin levels in the human body in real time without invasive interventions (blood collection) and expensive equipment or reagents.

show abstract

On the Prospect of Application of Point-Contact Sensors to Solving the Global Security Problems: An Analytical Review

Cited by 2 publications

References 29 publications

Quantum mechanisms for selective detection in complex gas mixtures with conductive sensors: analysis of the problem and new results

Quantum mechanisms for selective detection in complex gas mixtures with conductive sensors: analysis of the problem and new results

Noninvasive real-time breath test for controlling hormonal background of the human body: detection of serotonin and melatonin with quantum point-contact sensors

Contact Info

Product

Resources

About