FTIR and XRD Evaluation of Magnesium Doped Hydroxyapatite/Sodium Alginate Powder by Precipitation Method

Abstract

Composites material were developed to acquire the desired material properties for biomedical applications in the recovery of defect bone by using Mg-doped HA/SA. Hydroxyapatite (HA) is the major constituent and essential component in bone and teeth. The stability of Mg doped HA/SA is influenced by starting precursor powders, preparation condition and method of preparing the samples for implant materials. The precipitation method was employed to prepare Mg-doped HA/SA powders by varying the composition of Mg at temperature 1300 C. The influence of Mg-doped HA/SA on phase composition, chemical structure and a functional group at various weight percentages (0.5wt%-1.5wt %) were accomplished through X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) analyses. Based on the XRD and FTIR analyses, there is the presence of different peaks intensity and adsorption bands which indicates the shifted of peaks due to the doping process and a chemical interaction were observed between the inorganic and organic phase. Furthermore, the transformation of β-TCP due to increase in sintering temperatures are caused by the presence of magnesium ions. The OH stretching bands of HA/SA are trace by FTIR that identified the decomposition of Mg-doped HA/SA.

Three‐dimensional‐poly(lactic acid) scaffolds coated with gelatin/magnesium‐doped nano‐hydroxyapatite for bone tissue engineering

“…The presence of an additional peak at 3700 cm –1 in Mg‐nHAp was due to the presence of OH and CO 3 2 ˉ groups for absorbed water and CO 2 from the air, which is a characteristic feature of Mg‐doped nHAp. [ 28 ] Overall, in the three‐dimensional‐PLA/Gel/Mg‐nHAp composite scaffolds, all main matching characteristic peaks of individual compounds were present, and the development of an extra peak at 2361 cm ‐1 was attributed to the presence of background gaseous CO 2 in the spectrometer (Figure S3A). [ 29 ] The crystallinity of PLA, Gel, nHAp, Mg‐nHAp, and three‐dimensional‐PLA/Gel/Mg‐nHAp composite scaffolds was assessed by XRD (Figure S3B).…”

Evaluating the Electrochemical and In Vitro Degradation of an HA-Titania Nano-Channeled Coating for Effective Corrosion Resistance of Biodegradable Mg Alloy

“…A simultaneous drop in the Mg-O peaks was observed with the increasing intensity of PO4 3− peaks. Typically, these effects suggest that the corrosion products are mineralized from structurally disordered Ca-Def HA [38][39][40]. The mineralized HA must have its c-axis [001] parallel to the longitudinal fibrils of cortical bone to deeply penetrate inside the collagen fibrils of natural bone for better adhesion [41,42].…”

“…A simultaneous drop in the Mg-O peaks was observed with the increasing intensity of PO4 3− peaks. Typically, these effects suggest that the corrosion products are mineralized from structurally disordered Ca-Def HA [38][39][40]. Figure 11a shows the FTIR spectrum of apatite mineralized on TNC-coated and HA-TNC-coated ZM21 samples after 14 and 28 days of SBF immersion.…”

“…A simultaneous drop in the Mg-O peaks was observed with the increasing intensity of PO 4 3− peaks. Typically, these effects suggest that the corrosion products are mineralized from structurally disordered Ca-Def HA [38][39][40].…”

In vivo histomorphologically evaluate of the initial bone healing in geopolymer-carbonated apatite nanocomposites as a potential dental implant material

“…Study 29 Fouriertransform infrared spectroscopy spectrum of sample shown by a profile at 3566 cm -1 associated with strong and sharp peak attributed to O-H streaching vibration of carbonate apatite. 30 The other peaks are related to the P-O vibrations, namely 1014-1052 cm-1 and 659 cm -1 .…”