A New Class of Potentially Implantable Solid-State Sensors is Demonstrated Utilizing Biodegradable Glass as the Main Structural Material. the Device Behavior is Manipulated Via Chemical Decomposition, and Then Physically Disintegrated in a Controlled Manner. It is based on the Capacitive Sensing Mechanism, Comprising an Elastic Insulator between Two Borate-Rich Glass Substrates. This Mesoscale Pressure Sensor is Characterized by a Range of Pressure of Up to 14 MPa in a Phosphate Buffer Solution Environment. the Sensor Exhibits Good Sensitivity and Reversibility Responding to Compressive Pressures and Remains Fully Functional Before a Desired, Sudden Failure Caused by Dissolution. the Operational Lifetime Can Be Modified by Altering the Chemical Composition or Thickness of the Biodegradable Glass Component. the Proposed Device Concept is a Viable Option toward Various Temporary Implantable Devices Without Needing an Additional Surgical Procedure to Remove Them after their Duty.
D. Chattopadhyay et al., "Glass-Based Biodegradable Pressure Sensor toward Biomechanical Monitoring with a Controllable Lifetime," IEEE Sensors Letters, vol. 7, no. 2, article no. 2500304, Institute of Electrical and Electronics Engineers, Feb 2023.
The definitive version is available at https://doi.org/10.1109/LSENS.2023.3242649
Mechanical and Aerospace Engineering
Electrical and Computer Engineering
Keywords and Phrases
biodegradable; glass; implantable; Mechanical sensors; pressure; sensor
International Standard Serial Number (ISSN)
Article - Journal
© 2023 Institute of Electrical and Electronics Engineers, All rights reserved.
01 Feb 2023