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. 2016 Feb 3;9(2):93. doi: 10.3390/ma9020093

Figure 2.

Figure 2

Effect on the surface roughness of the fiber due to increasing time in Ar-plasma treatment of samples: (a) NW C-Ar5; (b) NW C-Ar10; (c) NW C-Ar20; and (d) NW C-Ar30. SEM images were taken at 10 kV and ×10,000 magnification.