Electrodeposition of hydroxyapatite-SiO2 composite particles for biomedical applications

Fanny Dimasruhin, Munirul Ichwan, Adrian Nur, Minta Yuwana, Heru Setyawan*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


The objective of this work is to study the electrodeposition of hydroxyapatite (HA)-SiO2 on orthodontic wire. The effect of operating conditions including current density, sodium silicate/silica sol concentration and time were evaluated. A solution containing Na2H2EDTA, KH2PO4, CaCl2 and sodium silicate or silica sol was electrodeposited using orthodontic wire as the cathode and two platinum sheets as the anode under constant stirring. The distance between electrode was 1.5 cm. The products of this process could be HA-SiO2 precipitated. Precipitated composite was filtered and washed by demineralized water to eliminate the impurities. FTIR analysis showed that HA-SiO2 composite could be prepared both using sodium silicate and silica sol as the silica source. HA-SiO2 composite tended to form at high current density and high concentration at pH ≥ 7. At low current density and low silica concentration, brushite-SiO2 composite was formed. SEM observation showed that the morphology of composite formed by this method was needle-like shape and plate. The thickeness of the particles was approximately 50 nm.

Original languageEnglish
Title of host publication5th Nanoscience and Nanotechnology Symposium, NNS 2013
PublisherAmerican Institute of Physics Inc.
Number of pages5
ISBN (Print)9780735412187
Publication statusPublished - 2014
Event5th Nanoscience and Nanotechnology Symposium, NNS 2013 - Surabaya, Indonesia
Duration: 23 Oct 201325 Oct 2013

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference5th Nanoscience and Nanotechnology Symposium, NNS 2013


  • Electrophoresis deposition
  • Hydroxyapatite-silica composite
  • Orthodontic wire


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