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Physically crosslinked nanocomposites from silicate-crosslinked PEO: mechanical properties and osteogenic
Akhilesh K Gaharwar1, Vipuil Kishore, Christian Rivera
1Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907-2032, USA. agaharwa@purdue.edu
Abstract:
The mechanical and biological properties of silicate-crosslinked PEO nanocomposites are studied. A strong correlation is observed between silicate concentration and mechanical properties. In vitro cell culture studies reveal that an increase in silicate concentration enhances the attachment and proliferation of human mesenchymal stem cells significantly. An upregulation in the expression of osteocalcin on nanocomposites compared to the tissue culture polystyrene control is observed. Together, these results suggest that silicate-based nanocomposites are bioactive and have the potential to be used in a range of biotechnological and biomedical applications such as injectable matrices, biomedical coatings, drug delivery, and regenerative medicine.
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