Journal
2021 IEEE SENSORS APPLICATIONS SYMPOSIUM (SAS 2021)
Volume -, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/SAS51076.2021.9530012
Keywords
Pyroelectric sensor; Biological cell characterization; Thin film devices; Thermal factors
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Cell culturing is a commonly used technique, with recent intensive research on cellular thermodynamics and the development of a dual pyroelectric sensor for thermal characterization of cultured cells. The dual sensor shows linear dependence on cell concentrations and effectively reduces the impact of common-mode signals, making it a promising tool for rapid lab-based applications.
Cell culturing is one of the most intensively used technique, providing a controllable artificial environment for cell growing and monitoring. Cellular thermodynamics (intracellular thermal components of absorption) has recently been intensively investigated because of its implication in different molecular mechanisms. A Thermoelectric sensor can thus provide information about changes happening inside a cell. The work focuses on the design and fabrication of a dual pyroelectric sensor for the thermal characterization of cultured cells. The device is based on the use of two pyroelectric elements stimulated by an Infrared source. It is inherently compact and designed for compensating for the effect of the culture media in which the cells are maintained. Experimental results on the ARPE-19 cell line at different concentrations evidenced a linear dependence of the dual-sensor's output. Moreover, with respect to its single-element counterpart, the effect of common-mode signals (such as that of culture media) is drastically reduced. The dual sensor is thus a promising characterization tool for rapid lab-based applications.
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