The Journal of Membrane Biology

, Volume 245, Issue 10, pp 617–624

Design and Implementation of a Microelectrode Assembly for Use on Noncontact In Situ Electroporation of Adherent Cells

  • Tomás García-Sánchez
  • Beatriz Sánchez-Ortiz
  • Ingrid Vila
  • Maria Guitart
  • Javier Rosell
  • Anna M. Gómez-Foix
  • Ramón Bragós
Article

DOI: 10.1007/s00232-012-9474-y

Cite this article as:
García-Sánchez, T., Sánchez-Ortiz, B., Vila, I. et al. J Membrane Biol (2012) 245: 617. doi:10.1007/s00232-012-9474-y

Abstract

In situ electroporation of adherent cells provides significant advantages with respect to electroporation systems for suspension cells, such as causing minimal stress to cultured cells and simplifying and saving several steps within the process. In this study, a new electrode assembly design is shown and applied to in situ electroporate adherent cell lines growing in standard multiwell plates. We designed an interdigitated array of electrodes patterned on copper with printed circuit board technology and covered with nickel/gold. Small interelectrode distances were used to achieve effective electroporation with low voltages. Epoxy-based microseparators were constructed to avoid direct contact with the cells and to create more uniform electric fields. The device was successful in the electropermeabilization of two different adherent cell lines, C2C12 and HEK 293, as assessed by the intracellular delivery of the fluorescent dextran FD20S. Additionally, as a collateral effect, we observed cell electrofusion in HEK 293 cells, thus making this device also useful for performing cell fusion. In summary, we show the effectiveness of this minimally invasive device for electroporation of adherent cells cultured in standard multiwell plates. The cheap technologies used in the fabrication process of the electrode assembly indicate potential use as a low-cost, disposable device.

Keywords

In situ electroporation Noncontact Microelectrode Adherent cell 

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Tomás García-Sánchez
    • 1
  • Beatriz Sánchez-Ortiz
    • 2
  • Ingrid Vila
    • 2
  • Maria Guitart
    • 2
  • Javier Rosell
    • 1
  • Anna M. Gómez-Foix
    • 2
    • 3
  • Ramón Bragós
    • 1
  1. 1.Electronic and Biomedical Instrumentation Group, Department of Electrical EngineeringUniversitat Politecnica de CatalunyaBarcelonaSpain
  2. 2.Departament de Bioquímica i Biologia Molecular, IBUBUniversitat de BarcelonaBarcelonaSpain
  3. 3.CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM)BarcelonaSpain

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