Electrochemical and in vitro bioactivity of nanocomposite gelatin-forsterite coatings on AISI 316 L stainless steel

Ag and Mn-doped mesoporous bioactive glass nanoparticles incorporated into the chitosan/gelatin coatings deposited on PEEK/bioactive glass layers for favorable osteogenic differentiation and antibacterial activity

“…41 The new peaks observed at 873 cm À1 and 1400 cm À1 after incubation in SBF were attributed to carbonate groups. 42 The emergence of new phosphate and carbonate bands in the FTIR spectrum after treatment in SBF confirmed that the crystals seen in the SEM images are of carbonate hydroxyapatite. 43 The CG polyelectrolyte complex is expected to undergo degradation upon exposure to physiological conditions.…”

Ag–Sr doped mesoporous bioactive glass nanoparticles loaded chitosan/gelatin coating for orthopedic implants

“…The FTIR spectrum of the pure gelatin coating (Figure 7A) shows the characteristic peaks at 1170 cm −1 that may be attributed to carboxyl stretching vibration in the –COOH group of the amino acids, glutamic acid and arginine 42 . The peak at 1263 cm −1 corresponds to stretching vibrations of the NH‐ and CN‐ groups of Amide II 52 . The peak at 1533 cm −1 was attributed to the vibrations of NH and CN in Amide II 42 and the peak at 1630 cm −1 correspond to the NH vibration in Amide I 53,54 .…”

“…53,54 The Amide IV-related peak determined by the N-H stretching was present at 3285 cm −1 . 52 The spectrum of the pure chitosan coating (Figure 7B) displayed the typical peaks for a molecule of polysaccharide structure. The peak at 894 cm −1 was attributed to Amide V, 55 while the peak at 1018 cm −1 corresponds to the O-H bending, the peak at 1064 cm −1 corresponds to C-O stretching, and the peak at 1153 cm −1 correspond to C-N stretching.…”

“…42 The peak at 1263 cm −1 corresponds to stretching vibrations of the NH-and CN-groups of Amide II. 52 The peak at 1533 cm −1 was attributed to the vibrations of NH and CN in Amide II 42 and the peak at 1630 cm −1 correspond to the NH vibration in Amide I. 53,54 The Amide IV-related peak determined by the N-H stretching was present at 3285 cm −1 .…”

In-Situ Synthesis and Characterization of Chitosan/Hydroxyapatite Nanocomposite Coatings to Improve the Bioactive Properties of Ti6Al4V Substrates

“…CS/HA-based biomaterials have been extensively applied for bone substitutes, tissue engineering scaffolds and bone cement [ 14 , 15 , 16 ]. Different approaches have been established to make a ceramic or polymeric based coatings on the surface of metals or alloys [ 17 , 18 , 19 , 20 ]. It was reported that Ti6Al4V substrate was modified by a chitosan film to promote the nucleation of HA/Ag composite coatings deposited by the thermal substrate method [ 21 ].…”