Nanodiamond reinforced PLLA composites for bone tissue engineering

Qingwei Zhang, Peter Lelkes, Jack Zhou

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

Abstract

Nanotechnology shows us many innovations and it is generally accepted view that many could be further developed and applied in tissue engineering. A novel composite material has been produced for bone scaffolds utilizing the biodegradable polymer poly(L-lactic acid) (PLLA) and octadecylamine functionalized nanodiamond (ND-ODA). The composites were characterized by hardness testing (Rockwell) and differential scanning calorimetry (DSC). DSC analysis of the composites showed no significant thermal behavior changes when adding ND into the polymer matrix. Rockwell result shows ND-ODA improves mechanical strength of composites 4 folds. To test the usefulness of ND-ODA/PLLA as a matrix for supporting cell growth, 7F2 Osteoblasts were cultured on scaffolds for 3 days. The results showed that the addition of ND-ODA has almost no influence on cell growth, which indicates the composites are biocompatible. All these results combined suggest that ND-ODA/PLLA might provide a novel composite suitable for bone tissue engineering application.

Original languageEnglish
Title of host publicationProceedings of the ASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
Pages325-331
Number of pages7
DOIs
StatePublished - 2009
Externally publishedYes
EventASME International Manufacturing Science and Engineering Conference 2009, MSEC2009 - West Lafayette, IN, United States
Duration: Oct 4 2009Oct 7 2009

Publication series

NameProceedings of the ASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
Volume2

Conference

ConferenceASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
Country/TerritoryUnited States
CityWest Lafayette, IN
Period10/4/0910/7/09

Keywords

  • Composites
  • Nanodiamond
  • Poly(L-lactic acid)
  • Reinforcement
  • Tissue engineering

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