Journal
IEEE JOURNAL OF ELECTROMAGNETICS RF AND MICROWAVES IN MEDICINE AND BIOLOGY
Volume 5, Issue 1, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JERM.2020.2998325
Keywords
Biofuel cell; RFID tags; in vitro; in vivo; wearable sensors
Categories
Funding
- French State of the Investments for the future Programme IdEx Bordeaux [ANR10-IDEX-03-02]
- ANR [ANR-16-CE190001-01]
- LabEx AMADEus [ANR-10-LABX-0042-AMADEUS]
- University of Bordeaux
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This study introduces a light, battery-less, and wireless strategy for continuous monitoring of an implanted biofuel cell in laboratory rats by utilizing a Radio Frequency Identification (RFID) link. The lightweight and flexible tag antenna presented in the work has communication capability above 60 cm in a field environment, and operational capabilities were demonstrated through 24-hour continuous monitoring of an enzymatic glucose/O-2 reaction both in vitro and in vivo.
Enzymatic reactions involving glucose hold the potential for building implantable biosensors and embedded power generators for various medical applications. While Biofuel cells (BFCs) such as enzymatic glucose/O-2 are ensured to benefit from abundant chemical resources that can be harvested in the immediate environment of the human body, the highly critical in vivo kinetics of biofuel cell is not yet fully understood. Unfortunately, existing solutions for real-time monitoring of the reaction on rodents are not possible today, or too bulky, which has a biasing impact on the animal behavior. This work presents a light, battery-less, and wireless strategy to continuously monitor a BFC implanted in a laboratory rat using a Frequency Identification (RFID) link. An extremely lightweight and flexible tag antenna of footprint lower than 10 cm(2) is presented with communication capability above 60 cm in field environment. The operational capabilities are demonstrated with a 24-hour continuous monitoring of an enzymatic glucose/O-2 reaction, both in vitro and in vivo.
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