Zirconium-Porphyrin PCN-222: pH-responsive Controlled Anticancer Drug Oridonin

<div><sup>1</sup>H-NMR spectra of (a) alkaline-digested PCN-222@Ori, (b) alkaline-digested Ori, and (c) PCN-222 in KOH/D<sub>2</sub>O solution.</div>

Evidence-Based Complementary and Alternative Medicine

Figure 5: Zirconium-Porphyrin PCN-222: pH-responsive Controlled Anticancer Drug Oridonin 