Figure 3
SEM images of modern spruce pretreated with (a) 5, (b) 7.5, (c) 10, (d) 25, (e) 50, and (f) 100% of BMP-DCA/ ethanol solutions. The acceleration voltage is 5 kV.
Figure 3 | Scientific Reports
SEM images of modern spruce pretreated with (a) 5, (b) 7.5, (c) 10, (d) 25, (e) 50, and (f) 100% of BMP-DCA/ ethanol solutions. The acceleration voltage is 5 kV.
