Formation of apatite on poly(α‐hydroxy acid) in an accelerated biomimetic process
Copyright policy )Formation of apatite on poly(α‐hydroxy acid) in an accelerated biomimetic process
AbstractBonelike apatite coating was formed on poly(L‐lactic acid) films and poly(glycolic acid) scaffolds within 24 h through an accelerated biomimetic process. The ion concentrations in the simulated body fluid (SBF) were nearly 5 times of those in the human blood plasma. The apatite formed was characterized by using scanning electron microscopy (SEM), energy dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The apatite formed in 5SBFs was similar in morphology and composition to that formed in the classical biomimetic process using SBF or 1.5SBF and similar to that of natural bone. This indicated that the biomimetic apatite‐coating process could be accelerated by using concentrated simulated body fluid at 37°C. Besides saving time, the accelerated biomimetic process is particularly significant to biodegradable polymers. Some polymers that degrade too fast to be coated with apatite by a classical biomimetic process (e.g., PGA) could be coated with bonelike apatite in an accelerated biomimetic process. © 2005 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 73B: 68–76, 2005
- Hong Kong Polytechnic University China (People's Republic of)
- University of Hong Kong China (People's Republic of)
- University of Manchester United Kingdom
- University of Hong Kong (香港大學) China (People's Republic of)
- University of Manchester United Kingdom
carbonated apatite, Apatites - chemistry, organic polymers, Time Factors, Polymers, Surface Properties, Polyesters, Bone Substitutes - chemistry, Biocompatible Materials, substrate, Poly(L-lactic acid), Bonelike apatite, composites, Bone and Bones, Poly(glycolic acid), poly(l-lactic acid), Biomimetics, Apatites, Spectroscopy, Fourier Transform Infrared, Humans, Lactic Acid, improvement, in-vitro degradation, Simulated body fluid, phosphate, Ions, accelerated biomimetic process, Biocompatible Materials - chemistry, Temperature, hydroxyapatite, Spectrometry, X-Ray Emission, bone-like apatite, Hydrogen-Ion Concentration, 540, Accelerated biomimetic process, bonelike apatite, adhesion, simulated body fluid, poly(glycolic acid), Models, Chemical, Solubility, Lactic Acid - chemistry, Bone Substitutes, Microscopy, Electron, Scanning, Polyglycolic Acid - chemistry, Polyglycolic Acid
carbonated apatite, Apatites - chemistry, organic polymers, Time Factors, Polymers, Surface Properties, Polyesters, Bone Substitutes - chemistry, Biocompatible Materials, substrate, Poly(L-lactic acid), Bonelike apatite, composites, Bone and Bones, Poly(glycolic acid), poly(l-lactic acid), Biomimetics, Apatites, Spectroscopy, Fourier Transform Infrared, Humans, Lactic Acid, improvement, in-vitro degradation, Simulated body fluid, phosphate, Ions, accelerated biomimetic process, Biocompatible Materials - chemistry, Temperature, hydroxyapatite, Spectrometry, X-Ray Emission, bone-like apatite, Hydrogen-Ion Concentration, 540, Accelerated biomimetic process, bonelike apatite, adhesion, simulated body fluid, poly(glycolic acid), Models, Chemical, Solubility, Lactic Acid - chemistry, Bone Substitutes, Microscopy, Electron, Scanning, Polyglycolic Acid - chemistry, Polyglycolic Acid
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