Microfabricated PLGA/PVA-based completely biodegradable passive RF pressure sensors
- Resource Type
- Conference
- Authors
- Luo, M.; Shen, W.; Allen, M. G.
- Source
- 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS) Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on. :101-104 Jun, 2015
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Degradation
Pressure sensors
Polymers
Zinc
In vitro
Films
Conductors
Biodegradable sensor
wireless pressure sensor
PVA
PLGA
Zn
in vitro degradation
- Language
- ISSN
- 2159-547X
2164-1641
This paper reports a microfabricated completely biodegradable passive RF pressure sensor with rapid degradation rate. Unlike previous approaches to biodegradable sensors, this sensor utilizes a “shell-core” dielectric structure consisting of FDA-approved biodegradable polymer poly (lactic-co-glycolic acid) (PLGA) and water soluble polyvinyl alcohol (PVA) to achieve rapid degradation. Zinc (Zn) is chosen as the biodegradable electrical conductor. The fabricated sensor was characterized wirelessly in a long-term immersion test in vitro. The sensor exhibited three stages of behavior in vitro: equilibration, functional lifetime, and performance degradation. An in vitro degradation lifetime of 25 days has been demonstrated.