Fig. 4

(a) SEM micrographs of PmAP, (b) SEM of \(\:\text{P}\text{m}\text{A}\text{P}{/\text{G}\text{O}}_{\left(6.6\right)}\), and (c) SEM of \(\:\text{P}\text{m}\text{A}\text{P}/\text{A}\text{P}\text{T}\text{E}\text{S}{/\text{G}\text{O}}_{\left(6.6\right)}\); (d) TEM micrographs of PmAP, (e) TEM of \(\:\text{P}\text{m}\text{A}\text{P}{/\text{G}\text{O}}_{\left(6.6\right)}\:\), and (f) TEM of \(\:\text{P}\text{m}\text{A}\text{P}/\text{A}\text{P}\text{T}\text{E}\text{S}{/\text{G}\text{O}}_{\left(6.6\right)}\:\)