Microwave dielectric spectroscopy for single cell irreversible electroporation monitoring

Amar Tamra (1) , Marie Deburghgraeve (1) , David Dubuc (1) , Marie-Pierre Rols (2) , Katia Grenier (1)

1 LAAS-MH2F - Équipe Micro et nanosystèmes HyperFréquences Fluidiques
2 IPBS - Institut de pharmacologie et de biologie structurale

This paper demonstrates the efficient use of microwave dielectric spectroscopy for single cell irreversible electroporation monitoring. The experimental results point out a high correlation (R 2 higher than 0.94) with biological gold standard technique based on flow cytometry, whereas microwave approach features several key advantages: marker-less, contact-less and in-liquid cell(s) monitoring. The developed microwave and microfluidic-based biosensor reveals an increase in the capacitance and the conductance of single cells under investigation subjected to irreversible electroporation reflecting an increase in cell damages, which is in great correlation with results routinely obtained in biology. More interestingly, the post electroporation damages of cell have been experimentally quantified over time, which makes the microwave dielectric spectroscopy a technique of interest for cell's electroporation researches.

Mots clés: Single cell analysis; Biosensor; Electroporation; Dielectric spectroscopy; microwave

Domaines: Electromagnétisme; Micro et nanotechnologies/Microélectronique; Imagerie

Amar Tamra, Marie Deburghgraeve, David Dubuc, Marie-Pierre Rols, Katia Grenier. Microwave dielectric spectroscopy for single cell irreversible electroporation monitoring. IEEE International Microwave Symposium (IMS 2016), May 2016, San Francisco, CA, United States. ⟨10.1109/MWSYM.2016.7540429⟩. ⟨hal-01951589⟩