Fig. 2: Structure characterization of the porous N-halamine polymeric coating on the titanium surface. | Nature Communications

Fig. 2: Structure characterization of the porous N-halamine polymeric coating on the titanium surface.

From: Long-lasting renewable antibacterial porous polymeric coatings enable titanium biomaterials to prevent and treat peri-implant infection

Fig. 2

a FTIR spectra of Ti-PAA, Ti-PAA-NH and Ti-PAA-NCl. b SEM images showing the surface morphology of Ti, Ti-OH and Ti-PAA-NCl (upper scale bars = 400 nm, lower scale bars = 200 nm). c CSLM images of the surface roughness of Ti, Ti-OH and Ti-PAA-NCl. d Elemental mapping of Ti-PAA-NCl showing the homogeneous distribution of Cl in the pore wall of N-halamine polymeric coating (scale bar = 5 μm). e Water contact angle of Ti-PAA-NCl. f Young’s modulus mapping via AFM for the N-halamine polymeric coating of Ti-PAA-NCl (scale bar = 200 nm). g TG curve of Ti-PAA-NCl showing good thermal stability. h Storage stability and regeneration of oxidative Cl+ for Ti-PAA-NCl (n = 3). The pink part gives the Cl+ contents of the dechlorinated and rechlorinated products of Ti-PAA-NCl with 8 weeks of storage. Error bars = s.d.

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