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Scratch test of NIH 3T3 fibroblasts. (A) Images of the scratch test of fibroblast cultured by leaching solution of N-Col-GO hybrid membrane after 0, 8, 16, and 24 h observed under a light microscope. (B) Immigrated area of fibroblast cultured by leaching solution of N-Col-GO hybrid membrane after 0, 8,16, and 24 h. (mean ± SD; *:P < 0.05, **:P< 0.01, Scale bars in A: 100 µm)
