Journal
ADVANCED MATERIALS
Volume 33, Issue 7, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202004234
Keywords
action potential recording; electrophysiology; fluorescence optical recording; in vitro toxicology
Categories
Funding
- Italian Institute of Technology
Ask authors/readers for more resources
The article introduces a new noninvasive method to record action potentials in human cells by utilizing the concept of mirror charges, which converts cell ionic currents into mirror charges in a microfluidic chamber to create a virtual mirror cell with high spatial resolution and parallelization. Through a series of experiments, it is shown that this method is an ideal choice for assessing cardiotoxicity in human-derived cardiomyocytes.
The electrophysiological recording of action potentials in human cells is a long-sought objective due to its pivotal importance in many disciplines. Among the developed techniques, invasiveness remains a common issue, causing cytotoxicity or altering unpredictably cell physiological response. In this work, a new approach for recording intracellular signals of outstanding quality and with noninvasiveness is introduced. By taking profit of the concept of mirror charge in classical electrodynamics, the new proposed device transduces cell ionic currents into mirror charges in a microfluidic chamber, thus realizing a virtual mirror cell. By monitoring mirror charge dynamics, it is possible to effectively record the action potentials fired by the cells. Since there is no need for accessing or interacting with the cells, the method is intrinsically noninvasive. In addition, being based on optical recording, it shows high spatial resolution and high parallelization. As shown through a set of experiments, the presented methodology is an ideal candidate for the next generation devices for the reliable assessment of cardiotoxicity on human-derived cardiomyocytes. More generally, it paves the way toward a new family of in vitro biodevices that will lay a new milestone in the field of electrophysiology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available