Sensing and memorising liquids information with polarity-interactive ferroelectric sound
발표자
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초록
내용
For emerging biomedical applications, the direct sensing and storing of information regarding liquids are of significant interest in relation to human senses. Here, we present a novel interactive platform capable of sensing, monitoring, and storing the information of various liquids. Our platform with a ferroelectric polymer layer operated under alternating current utilises liquid-interactive ferroelectric sound (LIFS), which is dependent upon the polarity of the liquid, allowing for facile liquid sensing. More importantly, as LIFS of a liquid is correlated with non-volatile ferroelectric polarisation, the information of a liquid is stored and retrieved even after the liquid is removed, resulting in a liquid sensing memory. By programming different LIFSs on a thin film pad, the 2D position of a liquid droplet is identified on the pad. Moreover, both microfluidic and tube-type LIFS devices allow for in situ analysis of the flows of liquids including a human serum fluid with sound.