Effects of Various Processing Methods on the Ultrastructure of Tendon Collagen Fibrils from Qinchuan Beef Cattle Observed with Atomic Force Microscopy

Figure 2

Typical AFM height images of collagen fibrils treated by ultrasound at different frequencies: (a–c) 10-minute group and (d–f) 20-minute group were processed at 20, 28, and 40 kHz, respectively.

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