Feasibility of Parylene Coating for Planar Electroporation Copper Electrodes

  • Vitalij NOVICKIJ Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko g. 41, LT-03227 Vilnius, Lithuania
  • Aleksandr TABAŠNIKOV Scottish Microelectronics Centre, University of Edinburgh, King’s Building, EH9 3JF Edinburgh, United Kingdom
  • Stewart SMITH Scottish Microelectronics Centre, University of Edinburgh, King’s Building, EH9 3JF Edinburgh, United Kingdom
  • Audrius GRAINYS
  • Jurij Novickij Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko g. 41, LT-03227 Vilnius, Lithuania
  • Sonata TOLVAIŠIENĖ Department of Electrical Engineering, Vilnius Gediminas Technical University, Naugarduko g. 41, LT-03227 Vilnius, Lithuania
  • Svetlana MARKOVSKAJA Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų g. 49, LT-08406 Vilnius, Lithuania
Keywords: microelectrodes, pulsed electric field, biological cells

Abstract

This paper is focused on the feasibility study of parylene as a biocompatible coating for planar electroporation microelectrodes. The planar parallel and the circular interdigitated electrodes are applied in the analysis. The electrodes feature 100 μm width with a 300 μm gap between anode and cathode. The parylene coating thickness was varied in the 250 nm – 2 μm range. The resultant electric field distribution evaluation has been performed using the finite element method. The electrodes have been applied in electroporation experiments with Saprolegnia parasitica. For reference the additional experiments using conventional electroporation cuvette (1 mm gap) have been performed. It has been determined that the parylene coating with hydrophobic properties has limited applicability for the passivation of the planar electroporation electrodes.

DOI: http://dx.doi.org/10.5755/j01.ms.23.2.14953

Published
2017-02-14
Section
ELECTRONIC AND OPTICAL MATERIALS