Electric field stimulation integrated into perfusion bioreactor for cardiac tissue engineering Academic Article uri icon

abstract

  • We describe herein the features of a novel cultivation system, combining electrical stimulation with medium perfusion for producing thick, functional cardiac patches. A custom- made electrical stimulator was integrated via inserting two carbon rod electrodes into a perfusion bioreactor, housing multiple neonatal Sprague-Dawley rat cardiac cell constructs between two 96% open-pore-area fixing nets. The stimulator produced adjustable stimulation waveform (ie, duty cycle, number of stimulating channels, maximum stimulation amplitude, etc.), specially designed for cardiac cell stimulation. The cell constructs were subjected to a homogenous fluid flow regime and electrical stimulation under conditions optimal for cell excitation. The stimulation threshold in the bioreactor was set by first determining its value in a Petri dish under a microscope, and then matching the current …

publication date

  • January 1, 2010