Functionalized skin-like membranes are currently under investigation for the design of a new class of Epidermal Electronics devices for sensing and healing applications. The dynamic response of epidermal antennas in presence of absorption and release of fluids is a key-point to design RFID radio-sensors and actuators. This paper addresses the characterization of the dielectric property of PVA-based biocompatible hydrogel membranes in the UHF RFID band by means of a modified ring resonator. Samples having different compositions are measured in the dry state as well as when exposed to a progressive release of body fluids emulating perspirations or wound exudates. It was found that the permittivity increases up to 10 times demonstrating that such membranes may be also used as sensors.
Amendola, S., Occhiuzzi, C., Ajovalasit, A., Sabatino, M., Dispensa, C., Marrocco, G. (2015). Dielectric characterization of biocompatible hydrogels for application to Epidermal RFID devices. In 2015 EUROPEAN MICROWAVE CONFERENCE (EUMC) (pp.379-382). Institute of Electrical and Electronics Engineers Inc. [10.1109/EuMC.2015.7345779].
Dielectric characterization of biocompatible hydrogels for application to Epidermal RFID devices
Occhiuzzi, C;MARROCCO, GAETANO
2015-01-01
Abstract
Functionalized skin-like membranes are currently under investigation for the design of a new class of Epidermal Electronics devices for sensing and healing applications. The dynamic response of epidermal antennas in presence of absorption and release of fluids is a key-point to design RFID radio-sensors and actuators. This paper addresses the characterization of the dielectric property of PVA-based biocompatible hydrogel membranes in the UHF RFID band by means of a modified ring resonator. Samples having different compositions are measured in the dry state as well as when exposed to a progressive release of body fluids emulating perspirations or wound exudates. It was found that the permittivity increases up to 10 times demonstrating that such membranes may be also used as sensors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
