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. 2021 Feb 18;12:630220. doi: 10.3389/fmicb.2021.630220

FIGURE 7.

FIGURE 7

Zeta potential of biochar particles and Cordyceps fumosorosea-biochar nanoparticles. (A) Biochar particles. (B) Cordyceps fumosorosea-biochar nanoparticles.