Fig. 2

Typical TEM results for (A) PNG, (B) PAMAM-PNG, (C, D) SWCNHs (C: 10000×, D: 210000 × .). Red arrow: the typical shape of PNG, blue arrow: the PNG of binding with PAMAM
Typical TEM results for (A) PNG, (B) PAMAM-PNG, (C, D) SWCNHs (C: 10000×, D: 210000 × .). Red arrow: the typical shape of PNG, blue arrow: the PNG of binding with PAMAM