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Updated: Mar 7, 2026

A Tool to Automatically Create Stable and Reproducible Cell-free Gaps for Improving the Reliability of Cell Wound Healing Assay
Published on: October 4, 2024
PROOF OF CONCEPT FOR A DEVICE TO STANDARDIZE CELLULAR MIGRATION ASSAY EXPERIMENTS
Nicholas M Bittner1, Ghoulem Ifrene1, Amanda Haage1
1University of North Dakota, Grand Forks, ND.
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One of the most common techniques for investigating the migration of human cells in culture is a "scratch assay" where a pipette tip is dragged through a layer of cells creating a "wound". Migration is then observed as the cells move back into the area that was cleared. While common, this method has drawbacks. It requires a seasoned hand to perform the "scratch", it leaves behind wounded remains of cells creating a unique microenvironment, and by design, the scratch is jagged and ununiform in nature. This research demonstrates the functionality of a cheap, easy to implement 3D printed device that mimics this assay. Its benefits include needing virtually no training to use, creating uniform areas for migration, and limiting cell death.

