Research Article
Effect of 660 nm Light-Emitting Diode on the Wound Healing in Fibroblast-Like Cell Lines
Figure 6
Images of scratch assays of HGF cells (a). Wound healing was observed using an inverted microscope and a digital camera at 12 and 24 h after wounding. Original magnification ×100. Arrows indicate the starting position of the cell migration. Cell migration is toward the center of the wound. Graph of HGF cell migration rate (b). Scratched cells were exposed to 660 nm LED light with an intensity of 8.5 mW/cm2 for 5, 10, and 20 min.
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