A study on biocomposite of nano apatite/poly (1,4-phenylene-sulfide)–poly (2,4-phenylene sulfide acid)

Calcium orthophosphate-based biocomposites and hybrid biomaterials

“…of HA and RCOO -of collagen molecules was found by XPS [503]. Similar XPS observations were also made for several other calcium orthophosphate-based biocomposites [529,556,565].…”

“…FTIR spectroscopy seems to be the major investigation tool of a possible chemical bonding among the phases in calcium orthophosphate-based biocomposites and hybrid biomaterials [220,280,287,289,382,420,502,517,526,529,536,539,541,544,549,556,565,570,595,633,666,667,726,910,911]. For example, the characteristic bands at 2918, 2850, and 1472 cm -1 for the hydrocarbon backbone of PE appeared to have zero shift in an HA/PE biocomposite.…”

Biocomposites and hybrid biomaterials based on calcium orthophosphates

“…These studies covered biocomposites with PLA 663 and many other biocompatible hybrid formulations. 279,320,335,417,[664][665][666][667][668][669][670][671][672][673][674][675][676][677][678][679][680][681][682][683] Furthermore, each of the aforementioned formulations might be covered by a layer of nanodimensional calcium orthophosphate, as was done by Zandi et al, who coated a biocomposite of nano-sized rods HA with gelatin by nano-sized HA. Several nanodimensional biocomposites were found to be applicable as carriers for delivery of drugs and growth factors 38,685-687 and were promising as vectors with ultra high gene loading and transfection efficiency.…”

“…708,709 More to the point, nucleation of apatite crystals onto collagen through a chemical interaction with carboxylate groups of collagen macromolecules has been reported in references 1130-1132. FTIR spectroscopy seems to be the major tool for studying a possible chemical bonding among the phases in calcium orthophosphate-based biocomposites and hybrid biomaterials. 276,310,345,353,355,462,513,600,616,629,635,638,641,644,653,664,673,678,709,753,802,803,847,882,[1133][1134][1135][1136] For example, the characteristic bands at 2,918, …”

“…601 Similar XPS observations were also made for several other calcium orthophosphate-based biocomposites and hybrid biomaterials. 629,664,673 The interaction and adhesion between calcium orthophosphate fillers and their respective matrices have significant effects on the properties of particulate-filled, reinforced materials, as these forces are essential to load transfer among the phases and thus to improving the mechanical performance of the biocomposites. 353 However, for a substantial amount of the aforementioned formulations, the interaction among the phases is techniques, no chemical bonding between BCP and HPMC was detected.…”