这个问题感觉是做wound healing assay都面临的问题, 不知道文献中有没有报道。
Here I came up an idea to deal with this problem, I don't know if it will
work, up to your decision:
Rather than scraping the cells using pipette tip or any other tools which
generates the gap(or wound), half plate of the cells can be removed. Then
the growing up of the cells at the empty area may represent the cell
proliferation. The moving of the single edge may represent the wound healing
.