Related Experiment Video
Updated: Jan 16, 2026
12:21
A Versatile Automated Platform for Micro-scale Cell Stimulation Experiments
Published on: August 6, 2013
11.0K
SCHEPHERD: A universal platform for high-throughput, high-resolution, and programmable control of cell behavior
Yubin Lin1, Jeremy S Yodh2,3, Celeste Rodriguez4
1Department of Electrical and Computer Engineering, Princeton University.
Biorxiv : the Preprint Server for Biology
|September 26, 2025
Summary
New tools are needed to study direct-current (DC) bioelectric cues for cell migration. SCHEPHERD, an electrobioreactor, offers accessible infrastructure for DC stimulation, revealing its control over cell movement and tissue dynamics.
Area of Science:
- Bioelectricity
- Cellular Biology
- Tissue Engineering
Background:
- Direct-current (DC) bioelectric fields influence crucial biological processes like morphogenesis, immune response, and healing via electrotaxis.
- Existing infrastructure for standardized DC stimulation and electrotaxis assays is limited, hindering research.
- Developing accessible and reproducible tools is essential for advancing the study of DC bioelectric phenomena.
Purpose of the Study:
- To introduce SCHEPHERD, a novel, universal electrobioreactor designed for DC stimulation and electrotaxis assays.
- To demonstrate the capabilities of SCHEPHERD in controlling cell migration and tissue organization.
- To enhance accessibility and reproducibility in the study of DC bioelectric cues.
Main Methods:
- Development of SCHEPHERD, an electrobioreactor with 8 stimulation channels and modular inserts for various electrotaxis assays (cells, monolayers, 3D spheroids).
- Systematic parameter sweeps to investigate the effect of DC fields on cell migration.
- Live confocal imaging to observe F-actin dynamics under electrical stimulation.
- Utilization of multi-polar inserts to generate complex spatial electrical patterns.
Main Results:
- DC fields were found to significantly control cell migration, acting as a 'steering wheel and gas pedal'.
- Electrically reprogrammed F-actin dynamics were observed using live confocal imaging.
- Engineered tissue dynamics were reorganized by complex spatial electrical patterns generated by multi-polar inserts.
- SCHEPHERD demonstrated versatility across different sample types (cells, monolayers, spheroids).
Conclusions:
- SCHEPHERD provides a standardized, accessible, and versatile platform for DC bioelectric research.
- The study highlights the significant role of DC fields in directing cell migration and tissue dynamics.
- The open-source nature and modularity of SCHEPHERD aim to broaden community engagement in DC bioelectric phenomena research.
