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. 2020 Jan 24;15:537–552. doi: 10.2147/IJN.S233669

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© 2020 Shang et al.

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Capacity as UCAs for contrast enhancement in vitro. (A) The contrast images at the maximum contrast intensities of nanobubbles at 25°C and 37°C, the degassed, deionized water used as negative control. (B) Comparison of the maximum contrast intensities between 25°C and 37°C. **p<0.001. (C) Comparison of the “manual flash” contrast intensities between 25°C and 37°C. **p<0.001. (D) The SR curve of NDs at different time point.