Sensing and memorising liquids with polarity-interactive ferroelectric sound

Autor: Kang Lib Kim, Beomjin Jeong, Hyowon Han, Gwangmook Kim, Cheolmin Park, Jong Sung Kim, Seung Won Lee, June Huh, Chanho Park, Eui Hyuk Kim, Wooyoung Shim, Ihn Hwang, Seokyeong Lee
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Nature Communications
ISSN: 2041-1723
Popis: The direct sensing and storing of the information of liquids with different polarities are of significant interest, in particular, through means related to human senses for emerging biomedical applications. Here, we present an interactive platform capable of sensing and storing the information of liquids. Our platform utilises sound arising from liquid-interactive ferroelectric actuation, which is dependent upon the polarity of the liquid. Liquid-interactive sound is developed when a liquid is placed on a ferroelectric polymer layer across two in-plane electrodes under an alternating current field. As the sound is correlated with non-volatile remnant polarisation of the ferroelectric layer, the information is stored and retrieved after the liquid is removed, resulting in a sensing memory of the liquid. Our pad-type allows for identifying the position of a liquid. Flexible tube-type devices offer a route for in situ analysis of flowing liquids including a human serum liquid in terms of sound.
Though liquid sensing platforms are highly sought after for emerging biomedical applications, current technology is limited in its capacity to directly sense and store information. Here, the authors report a sensing memory platform that senses, monitors, and stores information on various liquids.
Databáze: OpenAIRE