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Journal of Analytical Science and Technology
Fig. 2 | Journal of Analytical Science and Technology

Fig. 2

From: Novel plasma-polymerized coating facilitates HeLa cell spheroid formation, exerting necroptosis via β-cyclodextrin-encapsulated resveratrol

Fig. 2

Characterization of the ppOMBTSTS surface coated on the culture dish for generating HeLa cell spheroids. A Water contact angle of polystyrene Petri dishes and ppOMBTSTS surface. The water contact angle data were plotted as bar graphs (n = 2). B FT-IR absorption spectra of polystyrene Petri dishes (Bare) and ppOMBTSTS. C XPS atomic concentration of polystyrene Petri dishes (Bare) and ppOMBTSTS. D Deconvoluted XPS C1s peak of polystyrene Petri dishes (Bare) and ppOMBTSTS for C–Si, C–C/C–H, C–O, O–C=O, O–C=O–O and π–π* peaks. E HeLa cells were added to polystyrene Petri dishes (Bare) or ppOMBTSTS surface and incubated for 3 days. Both spheroids and monolayered cells were observed under a microscope. The bar graphs represent the number of spheroids or monolayered cells per visual field (mean ± SE, n = 5)

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