Size controlled hydroxyapatite and calcium carbonate particles: synthesis and their application as templates for SERS platform

Colloids Surf B Biointerfaces. 2014 Jun 1:118:243-8. doi: 10.1016/j.colsurfb.2014.03.053. Epub 2014 Apr 18.

Abstract

An elegant route for hydroxyapatite (HA) particle synthesis via ionic exchange reaction is reported. Calcium carbonate particles (CaCO3) were recrystallized into HA beads in water solution with phosphate ions. The size of initial CaCO3 particles was controlled upon the synthesis by varying the amount of ethylene glycol (EG) in aqueous solution. The average size of HA beads ranged from 0.6±0.1 to 4.3±1.1μm. Silver nanoparticles were deposited on the surface of HA and CaCO3 particles via silver mirror reaction. Surface enhanced Raman scattering of silver functionalized beads was demonstrated by detecting Rhodamine B. CaCO3 and HA particles have a great potential for design of carrier which can provide diagnostic and therapeutic functions.

Keywords: Calcium carbonate; Hydroxyapatite; Particles; SERS; Silver nanoparticles; Vaterite.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcium Carbonate / chemistry*
  • Durapatite / chemistry*
  • Ethylene Glycol / chemistry
  • Microscopy, Electron, Scanning
  • Particle Size*
  • Rhodamines / chemistry
  • Spectrum Analysis, Raman*
  • X-Ray Diffraction

Substances

  • Rhodamines
  • Durapatite
  • Ethylene Glycol
  • Calcium Carbonate
  • rhodamine B