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Cytotoxicity Study of Ionophore-Based Membranes: Toward On Body and in Vivo Ion Sensing
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry.
Karolinska Inst, Dept Clin Sci Intervent & Technol, SE-14186 Stockholm, Sweden.;Karolinska Univ Sjukhuset, Div Obstet & Gynecol, SE-14186 Stockholm, Sweden..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry.ORCID iD: 0000-0002-1344-8432
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry.ORCID iD: 0000-0002-3858-8466
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2019 (English)In: ACS SENSORS, ISSN 2379-3694, Vol. 4, no 9, p. 2524-2535Article in journal (Refereed) Published
Abstract [en]

We present the most complete study to date comprising in vitro cytotoxicity tests of ion-selective membranes (ISMs) in terms of cell viability, proliferation, and adhesion assays with human dermal fibroblasts. ISMs were prepared with different types of plasticizers and ionophores to be tested in combination with assays that focus on the medium-term and long-term leaching of compounds. Furthermore, the ISMs were prepared in different configurations considering (i) inner-filling solution-type electrodes, (ii) all-solid-state electrodes based on a conventional drop-cast of the membrane, (iii) peeling after the preparation of a wearable sensor, and (iv) detachment from a microneedle-based sensor, thus covering a wide range of membrane shapes. One of the aims of this study, other than the demonstration of the biocompatibility of various ISMs and materials tested herein, is to create an awareness in the scientific community surrounding the need to perform biocompatibility assays during the the very first steps of any sensor development with an intended biomedical application. This will foster meeting the requirements for subsequent on-body application of the sensor and avoiding further problems during massive validations toward the final in vivo use and commercialization of such devices.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 4, no 9, p. 2524-2535
Keywords [en]
biocompatibility, cytotoxicity tests, ion-selective electrodes, biomedical applications, point-of-care
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-262801DOI: 10.1021/acssensors.9b01322ISI: 000488424100039PubMedID: 31448593Scopus ID: 2-s2.0-85072673080OAI: oai:DiVA.org:kth-262801DiVA, id: diva2:1362536
Note

QC 20191021

Available from: 2019-10-21 Created: 2019-10-21 Last updated: 2019-10-21Bibliographically approved

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Parrilla, MarcCuartero, MariaCrespo, Gaston A.

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