Non-invasive monitoring of biological parameters can benefit from Radio frequency Identification (RFID) devices attached over the skin. In this paper, a new lightweight, compact, and fully passive epidermal electronic device is proposed, capable of measuring surface pH. By integrating a self-tuning IC and a varactor diode as transducer, the mapping from the chemical agent to the output of the IC itself is achieved. To fully control the sensitivity, a closed-form formulation of the sensing mechanism is derived. The device is applicable over multiple body areas and readable up to 70 cm, with an average realized gain of -12dB at 868 MHz.
Nanni, F., Fiore, L., Arduini, F., Marrocco, G. (2022). Flexible epidermal device for the RFID-based potentiometric sensing of skin parameters. In 2022 IEEE 12th International Conference on RFID Technology and Applications, RFID-TA 2022 (pp.40-42). 345 E 47TH ST, NEW YORK, NY 10017 USA : Institute of Electrical and Electronics Engineers Inc. [10.1109/RFID-TA54958.2022.9924011].
Flexible epidermal device for the RFID-based potentiometric sensing of skin parameters
Nanni F.;Arduini F.;Marrocco G.
2022-01-01
Abstract
Non-invasive monitoring of biological parameters can benefit from Radio frequency Identification (RFID) devices attached over the skin. In this paper, a new lightweight, compact, and fully passive epidermal electronic device is proposed, capable of measuring surface pH. By integrating a self-tuning IC and a varactor diode as transducer, the mapping from the chemical agent to the output of the IC itself is achieved. To fully control the sensitivity, a closed-form formulation of the sensing mechanism is derived. The device is applicable over multiple body areas and readable up to 70 cm, with an average realized gain of -12dB at 868 MHz.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
