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Article
Study of the Acoustic Characteristics of Suspensions Based on Glycerol and Synthetic Diamond Microparticles Using a Resonator with a Longitudinal Electric Field
The acoustic properties of suspensions based on pure glycerol and diamond powder with a particle size of 1–2 μm and different concentrations were studied using a resonator with a longitudinal electric field. A...
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Article
Determination of the Acoustic Wave Velocity and Attenuation in Liquids with Different Acoustic Impedances Using an Acoustic Interferometer
Theoretical and experimental features of using an acoustic interferometer for determining the velocity and attenuation of an acoustic wave in liquids with different acoustic impedances are studied. It is shown...
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Article
A Biological Sensor Based on the Acoustic Slot Mode Using Microbial Cells for the Determination of Ampicillin
A biological sensor for the determination of ampicillin in conductive solutions is presented. The sensor is based on an acoustic slot mode in a structure consisting of two lithium niobate piezoplates of differ...
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Article
Effect of the Electrical Conductivity of a Film on the Characteristics of an Radial Electric Field Excited Acoustic Resonator
The results of a study of the influence of the electrical conductivity of a thin film deposited on the free end of a radial electric field excited acoustic resonator field or located in its immediate vicinity ...
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Article
Effect of Ammonia on the Resonance Properties of a Piezoelectric Resonator with a Lateral Electric Field–Chitosan Film Structure
The parameters of a resonator with a lateral electric field with a thin film of chitosan acetate and chitosan glycolate in an air–ammonia mixture have been studied. It is shown that when the ammonia concentrat...
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Article
Biosensor Systems for Antibiotic Detection
Antibiotics are widely used in medicine, veterinary medicine, and the food industry. However, the active use of antibacterial drugs leads to environmental pollution. In this regard, there is a great need for m...
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Article
Determination of a Microbial Cells in Their Interaction with Phage Mini-Antibodies by the Sensor Based on a PZT Resonator with a Lateral Electric Field
A sensor is designed on the basis of a PZT resonator with a lateral electric field for the express analysis of microbial cells. The possibility of detecting and identifying microbial cells by recording their s...
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Article
Effect of a Conducting Film of Finite Thickness Deposited on a Resonator with a Lateral Electric Field on Its Characteristics
A theoretical and numerical study is performed of the effect of the thickness and the coefficients of the elasticity, viscosity, and electrical conductivity of a film deposited on a free side of a piezoelectri...
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Article
An Acoustic Resonator with a Radial Exciting Electric Field
A new type of piezoceramic acoustic disk resonator with a radial exciting electric field is described. The resonator is a disk made from 6mm crystallographic material using two round concentric metal electrode...
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Article
Acoustic Sensor System to Detect Bacteria in an Aquatic Environment
A method been developed for the rapid determination of bacteria on the example of E. coli cells in tap water with a slot-mode sensor in the acoustic-delay line. The method is based on the recording of changes in ...
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Article
New approach for determination of antimicrobial susceptibility to antibiotics by an acoustic sensor
For the first time, a rapid method was proposed to determine the susceptibility of Escherichia coli cells to antibiotics by the example of ampicillin by using a biological sensor based on a slot mode in an acoust...
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Chapter
Biological Acoustic Sensors for Microbial Cell Detection
One of the most popular areas in microbiology is the development of fast and sensitive methods for the detection of bacteria based on electrophysical analysis. The paper demonstrated the capabilities of variou...
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Article
Virus Detection Methods and Biosensor Technologies
This paper provides a brief overview of the modern and classical virus detection methods, including virus detection with bacteriophages as an example. Attention is given to the use of screening methods for vir...
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Article
A Study of the Effect of Terahertz Electromagnetic Radiation on Microbial Cell Viability
Abstract—The effect of pulsed terahertz radiation at a wavelength of 66 μm, a pulse duration of 100 ns, and a pulse energy of 200 mJ on a suspension of microbial cells was studied. The effect of terahertz radiati...
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Article
An Electroacoustic Analysis for Determining the Effect of Amoxicillin on Microbial Cells
The probability of determining the effects of amoxicillin, which is one of β-lactam antibiotics, on microbial cells of Escherichia coli by the electroacoustic analysis method was shown for the first time. A piezo...
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Article
Biosensor for the detection of bacteriophages based on a super-high-frequency resonator
Azospirillum lipoferum Sp59b microbial cells were immobilized on the surface of thin polystyrene films modified in plasma from a high-frequency discharge of argon (13.56 MHz). The optimal conditions for immobiliz...
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Article
A method of acoustic analysis for detection of bacteriophage-infected microbial cells
The dependence of the changes of physical parameters of the suspension of Azospirillum brasilense Sp7 cells infected by FAb-Sp7 bacteriophage on their number and exposure time was studied using a biological senso...
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Article
Analysis of interaction of bacterial cells and bacteriophages in conducting suspensions with an acoustic sensor
The possibility of analyzing bacterial cells infected by a specific bacteriophage, using Escherichia coli as an example, with an acoustic sensor directly in suspensions with different initial electrical conductiv...
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Article
Use of mini-antibodies for detection of bacteriophages by the electroaucoustic analysis method
The possibility of detecting bacteriophages using phage mini-antibodies by the electroacoustic analysis method using bacteriophages FA1-59b was shown. It was found that the frequency dependence of the real and...
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Article
High-Q piezoelectric resonators with a lateral electric field and their potential applications
It is shown for the first time that suppressing parasitic oscillations in a piezoelectric resonator with a lateral electric field by applying a dam** coating or by spatially separating the HF electric field ...
