Abstract
This work aims to prepare chitosan (CS)-based coated layers, CS (10 wt% nanosilver/90 wt% CS, 10 wt% biotin/90 wt% CS, and 5 wt% nanosilver–5 wt% biotin)/90 wt% CS coatings are prepared, onto pure Ti substrate. The surface morphology of the novel CS composite coating was studied using field emission scanning electron microscopy, atomic force microscopy (AFM), Fourier transforms infrared (FTIR) and wettability test. Results show that the addition of (biotin, nanosilver) 5 Vol.% improves the properties of composite materials. Using different particles’ scale size aid in improving the combinations in the alginate, producing a dual effect on film properties. Coating surface roughness decreased in the chitosan-based biocomposite with preferable homogeneity and crack-free coating layers, as confirmed by AFM. An increase in surface roughness ensured substitution, which enhanced the surface structures. The high wettability of the CS-based coating layers was due to the presence of nanoparticles, and the composite coatings with CS, nanosilver, or biotin had excellent wettability because of the good hydrophilic nature of the CS matrix combined with reinforced particles. The FTIR results showed that peaks of the blending of CS plus nanoparticles, CS plus biotin, or CS plus nanosilver plus biotin were excellent matching with no changes in the structure of the matrix.
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