6533b82ffe1ef96bd129510e

RESEARCH PRODUCT

Dielectric characterization of biocompatible hydrogels for application to Epidermal RFID devices

Cecilia OcchiuzziAlessia AjovalasitClelia DispenzaGaetano MarroccoMaria Antonietta SabatinoSara Amendola

subject

PermittivityUHF RFID tagsMaterials scienceintegumentary systemNanotechnologyHydrogelsSettore ING-INF/02 - Campi ElettromagneticiDielectricRadiofrequency Identification UHF RFID tags Epidermal sensors Body wireless network HydrogelsBody wireless network; Epidermal sensors; Hydrogels; Radiofrequency Identification; UHF RFID tags;Body wireless networkCharacterization (materials science)Epidermal sensorsResonatorMembraneUltra high frequencySelf-healing hydrogelsRadiofrequency IdentificationAbsorption (electromagnetic radiation)Biomedical engineering

description

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.

yearjournalcountryeditionlanguage
2015-09-01
10.1109/eumc.2015.7345779http://hdl.handle.net/2108/153727