Apatite formation on nanomaterial calcium phosphate/poly-DL-lactide-co-glycolide in simulated body fluid

J Appl Biomater Funct Mater. 2012 Jun 26;10(1):43-8. doi: 10.5301/JABFM.2012.9274.

Abstract

Simulated body fluid (SBF) is an artificial fluid which has ionic composition and ionic concentration similar to human blood plasma.

Purpose: This paper compares the interaction between the nanomaterial containing calcium phosphate/poly-dl-lactide-co-glycolide (N-CP/PLGA) and SBF, in order to investigate whether and to what extent inorganic ionic composition of human blood plasma leads to the aforementioned changes in the material.

Methods: N-CP/PLGA was incubated for 1, 2, 3, and 5 weeks in SBF. The surface of the material was analyzed on SEM-EDS and FTIR spectrometer, while SBF was subjected to pH and electrical conductivity measurement.

Results: Our results indicate that dissolution of the polymer component of the material N-CP/PLGA and precipitation of the material similar to hydroxyapatite on its surface are based on the morphologic changes seen in this material.

Conclusions: The mechanism of the apatite formation on the bioceramic surface was intensively studied and was considered crucial in designing the new biomaterials. The results obtained in this work indicate that N-CP/PLGA may be a good candidate for application to bone regeneration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apatites / blood
  • Apatites / chemistry*
  • Electric Conductivity
  • Humans
  • Hydrogen-Ion Concentration
  • Lactic Acid / blood
  • Lactic Acid / chemistry*
  • Microscopy, Electron, Scanning
  • Models, Biological*
  • Nanostructures / chemistry
  • Nanostructures / ultrastructure
  • Polyglycolic Acid / chemistry*
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Spectrometry, X-Ray Emission
  • Spectrophotometry, Infrared

Substances

  • Apatites
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polyglycolic Acid
  • Lactic Acid