“…Nanoemulsions of cinnamon, peppermint, clove, lemon, salvia, chamomile, frankincense, garlic, and ginger oils loaded with chemotherapeutic agents (e.g., bleomycin, paclitaxel, ifosfamide, mitomycin C, and doxorubicin) presented a major pro-apoptotic capability in HeLa cells compared with the chemotherapeutic agents alone (Table 5) [141][142][143][144][145][146]. Furthermore, peppermint-oil-based microemulsion loaded with paclitaxel was shown to be stable under centrifugal and freeze-thaw stress, and ≈90% of paclitaxel was released in the first 48 h [142]. The combined therapy of monoterpenoid carvacrol-fabricated chitosan NP and doxorubicin, a topoisomerase inhibitor, has also been reported to have greater anticancer effects on HeLa cells with an IC 50 of 5.66 µg/mL, compared to doxorubicin treatment alone (IC 50 6.30 µg/mL) [147].…”