In Vivo MRI and X-Ray Bifunctional Imaging of Polymeric Composite Supplemented with GdPO4 ·H2 O Nanobundles for Tracing Bone Implant and Bone Regeneration

Adv Healthc Mater. 2016 Sep;5(17):2182-90. doi: 10.1002/adhm.201600249. Epub 2016 Jul 6.

Abstract

Homogeneous and monodisperse GdPO4 ·H2 O nanobundles are successfully synthesized via a solvothermal method. Then, GdPO4 ·H2 O are incorporated into the composite of hydroxyapatite and poly(lactic-co-glycolic acid) to obtain a biodegradable and traceable bone implant. After implanted, the GdPO4 ·H2 O/HA/PLGA implant and the newly formed bone can be easily traced and observed through the combination of magnetic resonance imaging and X-ray imaging.

Keywords: MR imaging; bone repair; gadolinium phosphate; hydroxyapatite; poly(lactic-co-glycolic acid); radiography.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Absorbable Implants*
  • Animals
  • Bone Regeneration*
  • Cell Line
  • Contrast Media* / chemistry
  • Contrast Media* / pharmacology
  • Durapatite* / chemistry
  • Durapatite* / pharmacology
  • Gadolinium* / chemistry
  • Gadolinium* / pharmacology
  • Magnetic Resonance Imaging*
  • Mice
  • Nanoparticles* / chemistry
  • Nanoparticles* / therapeutic use
  • Tomography, X-Ray Computed*

Substances

  • Contrast Media
  • Durapatite
  • Gadolinium