Journal ArticleDOI
Advances in SAW-based gas sensors
Cinzia Caliendo,P. Verardi,Enrico Verona,Arnaldo D'Amico,C. Di Natale,Giovanni Saggio,M Serafini,Roberto Paolesse,S E Huq +8 more
TLDR
In this paper, the authors deal with advances in surface acoustic wave (SAW) sensor research relating to the use of both a new chemically interactive material (metal porphyrin) and new amplifiers for low-noise SAW oscillators.Abstract:
This paper deals with some advances in surface acoustic wave (SAW) sensor research relating to the use of both a new chemically interactive material (metal porphyrin) and new amplifiers for low-noise SAW oscillators, which are illustrated and discussed in some detail. The trend toward SAW matrixes, implemented on silicon, required for more sensitive chemical image systems, has led to the observation of coupling effects between adjacent SAW oscillators, even if the electronics were not implemented on Si. This effect must be considered at design level in order to achieve a higher resolution value in detecting either single chemical species or chemical images.read more
Citations
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Journal ArticleDOI
Surface acoustic wave biosensors: a review
TL;DR: An overview of 20 years of worldwide development in the field of biosensors based on special types of surface acoustic wave devices that permit the highly sensitive detection of biorelevant molecules in liquid media is presented.
Journal ArticleDOI
Organic–Inorganic Hybrid Nanocomposite-Based Gas Sensors for Environmental Monitoring
Ajeet Kaushik,Ajeet Kaushik,Rajesh Kumar,Rajesh Kumar,Sunil K. Arya,Madhavan Nair,Bansi D. Malhotra,Shekhar Bhansali +7 more
TL;DR: Environmental Monitoring Ajeet Kaushik,*,†,‡ Rajesh Kumar,*,‡,§ Sunil K. Arya, Madhavan Nair,† B. D. Malhotra, and Shekhar Bhansali.
Surface acoustic wave gas sensor based on film conductivity changes
TL;DR: The first surface acoustic wave (SAW) sensor that functions via changes in conductivity of a thin surface film is reported in this article, where a lead phthalocyanine (PbPc) thin film is deposited on the acoustic propagation path of a LiNbO 3 SAW delay line, which serves as the feedback element of an oscillator circuit.
Journal ArticleDOI
SAW Sensors for Chemical Vapors and Gases.
TL;DR: This review provides a general overview on the fundamental aspects and some major advances of Rayleigh wave-based SAW sensors in sensing chemicals in a gaseous phase and suggests some appropriate sensing approaches for particular applications.
Journal ArticleDOI
A review on flexible gas sensors: From materials to devices
TL;DR: In this article, the main techniques used to fabricate flexible gas sensors are explained, such as coating, printing, physical vapor deposition, in situ growth, and in situ polymerization and chemical vapor deposition.
References
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Journal ArticleDOI
Photosensitizers of the porphyrin and phthalocyanine series for photodynamic therapy
Journal ArticleDOI
Surface acoustic wave probe for chemical analysis. I. Introduction and instrument description
Henry. Wohltjen,Raymond E. Dessy +1 more
Journal ArticleDOI
A multisensor employing an ultrasonic Lamb-wave oscillator
TL;DR: In this paper, a microsensor that uses ultrasonic Lamb waves propagating in a thin plate supported by a silicon die is presented, which can operate as a microphone, biosensor, chemical vapor or gas detector, scale, pressure sensor, densitometer, radiometer or thermometer.
Surface acoustic wave gas sensor based on film conductivity changes
TL;DR: The first surface acoustic wave (SAW) sensor that functions via changes in conductivity of a thin surface film is reported in this article, where a lead phthalocyanine (PbPc) thin film is deposited on the acoustic propagation path of a LiNbO 3 SAW delay line, which serves as the feedback element of an oscillator circuit.
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Surface acoustic wave probe for chemical analysis. I. Introduction and instrument description
Henry. Wohltjen,Raymond E. Dessy +1 more