Open AccessAn integrated 3D fluidic device with bubble guidance mechanism for long-term primary and secondary cell recordings on multi-electrode array platform
Author(s) -
Anil Krishna Konduri,
C S Deepak,
Sumukh Purohit,
K. S. Narayan
Publication year - 2020
Publication title -
biofabrication
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.328
H-Index - 80
eISSN - 1758-5090
pISSN - 1758-5082
DOI - 10.1088/1758-5090/aba500
Subject(s) - retina , retinal , electrode array , electrophysiology , biomedical engineering , electrode , explant culture , embryonic stem cell , materials science , biophysics , fluidics , microbiology and biotechnology , anatomy , biology , chemistry , neuroscience , in vitro , medicine , biochemistry , gene , engineering , aerospace engineering
A 3D fluidic device (3D-FD) is designed and developed with the capability of auto bubble guidance via a helical pathway in a 3D geometry. This assembly is integrated to a multi-electrode array (MEA) to maintain secondary cell lines, primary cells and primary retinal tissue explants of chick embryos for continuous monitoring of the growth and electrophysiology recording. The ability to maintain the retinal tissue explant, extracted from day 14 (E-14) and day 21 (E-21) chick embryos in an integrated 3D-FD MEA for long duration (>100 h) and study the development is demonstrated. The enhanced duration of monitoring offered by this device is due to the controlled laminar flow and the maintenance of a stable microenvironment. The spontaneous electrical activity of the retina, including the spike recordings from the retinal ganglion layer, was monitored over a long duration. Specifically, the spiking activity in embryonic chick retinas of different days (E-14 to 21) is studied, and the presence of light-stimulated firings along with a distinct electroretinogram for E-21 mature retina provides the evidence of a stable microenvironment over a sustained period.