Enhanced bone regeneration capability of chitosan sponge coated with TiO2 nanoparticles

Radyum Ikono, Ni Li, Nanda Hendra Pratama, Agnia Vibriani, Diah Retno Yuniarni, Muhammad Luthfansyah, Boy Muchlis Bachtiar, Endang Winiati Bachtiar, Kamarza Mulia, Mohammad Nasikin, Hideaki Kagami, Xianqi Li, Etik Mardliyati, Nurul Taufiqu Rochman, Tokiko Nagamura-Inoue, Arinobu Tojo

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Chitosan has been a popular option for tissue engineering, however exhibits limited function for bone regeneration due to its low mechanical robustness and non-osteogenic inductivity. Here we hybridized chitosan with TiO2 nanoparticles to improve its bone regeneration capability. Morphology and crystallographic analysis showed that TiO2 nanoparticles in anatase-type were distributed evenly on the surface of the chitosan sponges. Degradation test showed a significant effect of TiO2 nanoparticles addition in retaining its integrity. Biomineralization assay using simulated body fluid showed apatite formation in sponges surface as denoted by PO4− band observed in FTIR results. qPCR analysis supported chitosan - TiO2 sponges in bone regeneration capability as indicated by DMP1 and OCN gene upregulation in TiO2 treated group. Finally, cytotoxicity analysis supported the fact that TiO2 nanoparticles added sponges were proved to be biocompatible. Results suggest that chitosan-50% TiO2 nanoparticles sponges could be a potential novel scaffold for bone tissue engineering.

Original languageEnglish
Article numbere00350
JournalBiotechnology Reports
Publication statusPublished - 1 Dec 2019


  • Bone regeneration
  • Chitosan
  • Sponges
  • TiO nanoparticles
  • Tissue engineering


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