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. 2018 Jun 25;8(7):461. doi: 10.3390/nano8070461

Figure 2.

Figure 2

SEM images & nanofibers diameter distributions of Neat PAN nanofibers: (a), PAN/AgNPs nanofibers having one dipping cycle: (b), PAN/AgNPs nanofibers having two dipping cycles: (c), and PAN/AgNPs nanofibers having three dipping cycles: (d).