Selective Acoustic Wave Sensors and their Applications
A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Applied Chemical Sensors".
Deadline for manuscript submissions: closed (10 September 2021) | Viewed by 7693
Special Issue Editor
Interests: MEMS; electro-acoustic devices; deposition of piezoelectric films; SAW and BAW propagation; piezoelectric devices for signal processing; piezoelectric sensors and biosensors
Special Issue Information
For many years, the detection of chemical agents has been a major research topic with the aim of preventing or mitigating their adverse effects on the environment and human health. The need for the detection of a continuously growing variety of volatile organic compounds (VOCs) or analytes in liquid, gaseous, and soil environments has stimulated a great deal of research activity for the development of sensing devices. The main features that this research is working to achieve are reversibility, low cost, fast response time, and miniaturization, but most of all, high sensitivity and selectivity. Acoustic wave devices are widely used for the detection of several analytes in different applications (e.g., medical, industrial, agricultural, homeland security, food quality, etc.), and have been demonstrated to be versatile in different environments. They have been demonstrated to ensure good sensitivity (particularly to changes in mass, viscosity, or conductivity) and response velocity; furthermore, the fabrication methods are compatible with standard integrated circuit technology.
In this Special Issue we would like to highlight the new strategies adopted to obtain high selectivity for a single acoustic sensor or sensors system, given the need to detect a large number of analytes among a large number of interfering elements. Typically, the main effort is to find the appropriate interactive element and develop an optimized device for the application of interest, but often the most useful strategies may concern signal processing (statistical methods for data processing and artificial intelligence methods for pattern recognition), deposition techniques for sensitive materials, and the use of sensor arrays or specific configurations.
Dr. Domenico Cannatà
Guest Editor
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Keywords
- Acoustic wave sensors
- Sensitive materials and coating techniques
- Selective sensors
- Sensor systems
- Signal processing
- Chemical agents
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