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Optimization design of interdigitated microelectrodes with an insulation layer on the connection tracks to enhance efficiency of assessment of the cell viability.

Sameh SherifYehya H GhallabOmnia AbdelRaheemLaila ZikoRania SiamYehea Ismail
Published in: BMC biomedical engineering (2023)
A completely portable and easy-to-use system, including different sensor configurations, was designed, fabricated, and experimentally tested. The system was used to extract the dielectric parameters of the Microbeads and MCF7 cells immersed in different buffer solutions. The high sensitivity of the readout circuit, which enables it to extract the difference between the viable and non-viable cells, was provided and discussed. The proposed system can extract and differentiate between different types of cells based on cells' sizes; two other polystyrene microbeads with different sizes are tested. Contamination that may happen was avoided using a Microfluidic chamber. The study shows a good match between the experiment and simulation results. The study also shows the optimum number of interdigitated electrodes that can be used to extract the variation in the dielectric parameters of the cells without leakage current or parasitic capacitance.
Keyphrases
  • induced apoptosis
  • cell cycle arrest
  • oxidative stress
  • endoplasmic reticulum stress
  • cell death
  • signaling pathway
  • anti inflammatory
  • cell proliferation
  • climate change