Inductively coupled passive resonance sensor for monitoring biodegradable polymers in vitro

T. Salpavaara, A. Antniemi, A. Hänninen, J. Lekkala, M. Kellomäki

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

    4 Citations (Scopus)
    49 Downloads (Pure)


    Capacitive sensors can be used to monitor changes in materials by monitoring complex permittivity. Inductively coupled passive resonance sensors provide means to make short range wireless permittivity measurements if the sensors are embedded in the tested material. In this study, inductively coupled sensors were embedded in biodegradable polymers, which are important materials in regenerative medicine. However, it is challenging to observe their decay especially in vivo. After preparing the samples by compression moulding, the encapsulated sensors and a reference series were immersed in buffer solution. The signals from the passive resonance sensors were measured for eight weeks. In addition, mechanical and chemical testing was periodically carried out to monitor the state of the reference series. The wirelessly measured signals are compared with water absorption, flexural modulus, glass transition temperature and viscosity.
    Original languageEnglish
    Title of host publication30th Eurosensors Conference, EUROSENSORS 2016
    Number of pages4
    Publication statusPublished - 4 Sept 2016
    Publication typeA4 Article in conference proceedings
    EventEurosensors -
    Duration: 1 Jan 2000 → …

    Publication series

    NameProcedia Engineering
    ISSN (Electronic)1877-7058


    Period1/01/00 → …

    Publication forum classification

    • Publication forum level 1


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