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Another type of non-optical sensor

Another type of non-optical sensor 0EDm9

Another type of non-optical sensor is based on detecting small changes in the mass of the sensor when exposed to chemical analytes through the physical adsorption of analytes on the sensor or specific chemical reactions of the analytes with the sensor. Mass sensors are usually microelectromechanical systems (MEMS). A typical mass sensor is a piezoelectric resonator with a polymer coating or an adsorbent molecular receptor. [117, 118] Molecular analytes in the sensor film cause physical or chemical adsorption that increases the mass of the sensor and thus decreases the resonant frequency. A common example of a mass sensor is the Quartz Crystal Balance (QCM), also known as bulk acoustic wave sensors [119, 120]. The principle of QCM-based diagnosis has many inherent benefits for the bioassay of disease. QCM systems can detect any type of molecule directly, because mass is an inherent feature of all materials, making it a versatile platform for detecting different types of disease biomarkers. Surface acoustic wave (SAW) sensors are a class of sensors based on two or more interdigitated transducers located on the surface of a piezoelectric layer that measure the delay of surface waves from one transducer to the other by piezoelectric [122 -124].

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mass
 of the sensor when exposed to chemical analytes through the physical adsorption of analytes on the sensor or specific chemical reactions of the analytes with the sensor. You use this word too often, consider replacing it withthronghordegroupcrowdnumberlump
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microelectromechanical
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MEMS
). A typical You use this word too often, consider replacing it withthronghordegroupcrowdnumberlump
mass
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mass
 of the sensor and thus
 decreases the resonant frequency. A common example of a You use this word too often, consider replacing it withthronghordegroupcrowdnumberlump
mass
 sensor is the Quartz Crystal Balance (QCM), also
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bioassay
 of disease. QCM systems can detect any type of molecule directly
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because
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 types of disease biomarkers. Surface acoustic wave (This phrase/word (depending on the context) can be potentially replaced with :witnessed
SAW
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interdigitated
 transducers located on the surface of a piezoelectric layer that measure the delay of surface waves from one transducer to the other by piezoelectric [122 -124]. 