Figure 2.

Ginkgo extract synthesized silver nanoparticles (GB-AgNPs) inhibit the proliferation of cervical cancer cells. (A, B) HeLa and SiHa cells were treated with different sizes of GB-AgNPs or AgNO₃ or GB-Extract for 24 h, and cell viability was measured with an MTT assay; (C, D) HeLa and SiHa Cells were treated with indicated concentrations of 40 nm GB-AgNPs for 12, 24, and 36 h, and MTS-incorporating live cells were detected with an MTS proliferation assay; (E) Cells were treated with indicated concentrations of 40 nm GB-AgNPs for 14 days, and live cells were detected with a colony formation assay; (F) cells were treated with indicated concentrations of 40 nm GB-AgNPs for 24 h, cell morphology was observed under an inverted phase-contrast microscope and images were obtained. Data are expressed as the means ± SD; *P < 0.05, **P < 0.01, ***P < 0.001.