Biodegradable passive resonance sensor: Fabrication and initial testing

Timo Salpavaara, Ville Ellä, Minna Kellomäki, Jukka Lekkala

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    2 Citations (Scopus)
    2 Downloads (Pure)


    Biodegradable resonance circuits were studied. The circuits have a novel two-layer resonator structure without galvanic through hole vias. A patterned magnesium layers were evaporated on biodegradable PLA sheets by using a 3D printed mask. The circuits were assembled by heat sealing two magnesium patterned sheets together to encapsulate the circuit structure. An inductive link is used to wirelessly detect the resonance frequency of the circuit. The circuits were tested when immersed in de-ionised water and saline. According to the tests, the designed resonator structure can be measured in aqueous environment. The resonance of the tested circuit was observable at least for 51 hours. The concept still needs more development to extend degradation time and to increase the stability during immersion.

    Original languageEnglish
    Title of host publicationBIODEVICES 2015 - 8th International Conference on Biomedical Electronics and Devices, Proceedings; Part of 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015
    Number of pages5
    ISBN (Print)9789897580710
    Publication statusPublished - 2015
    Publication typeA4 Article in conference proceedings
    EventInternational Conference on Biomedical Electronics and Devices -
    Duration: 1 Jan 1900 → …


    ConferenceInternational Conference on Biomedical Electronics and Devices
    Period1/01/00 → …


    • Biodegradable
    • Passive resonance sensor

    Publication forum classification

    • No publication forum level

    ASJC Scopus subject areas

    • Biomedical Engineering
    • Electrical and Electronic Engineering


    Dive into the research topics of 'Biodegradable passive resonance sensor: Fabrication and initial testing'. Together they form a unique fingerprint.

    Cite this