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Mesoporous magnesium silicate-incorporated poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) bioactive composite beneficial to osteoblast behaviors.

Niu Y, Dong W, Guo H, Deng Y, Guo L, An X, He D, Wei J, Li M - Int J Nanomedicine (2014)

Bottom Line: The results suggest that the mechanical properties of compressive strength and elastic modulus, as well as hydrophilicity, of the m-MPC increased with increase of m-MS content in the composites.In cell cultural experiments, the results showed that the attachment and viability ratio of MG63 cells on m-MPC increased significantly with the increase of m-MS content, showing that the addition of m-MS into PCL-PEG-PCL could promote cell attachment and proliferation.The results suggest that the incorporation of m-MS into PCL-PEG-PCL could produce bioactive composites with improved hydrophilicity, degradability, bioactivity, and cytocompatibility.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.

ABSTRACT
Mesoporous magnesium silicate (m-MS) and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) composite (m-MPC) was synthesized by solvent casting method. The results suggest that the mechanical properties of compressive strength and elastic modulus, as well as hydrophilicity, of the m-MPC increased with increase of m-MS content in the composites. In addition, the weight loss of the m-MPC improved significantly with the increase of m-MS content during composite soaking in phosphate-buffered saline for 10 weeks, indicating that incorporation of m-MS into PCL-PEG-PCL could enhance the degradability of the m-MPC. Moreover, the m-MPC with 40 w% m-MS could induce a dense and continuous apatite layer on its surface after soaking in simulated body fluid for 5 days, which was better than m-MPC 20 w% m-MS, exhibiting excellent in vitro bioactivity. In cell cultural experiments, the results showed that the attachment and viability ratio of MG63 cells on m-MPC increased significantly with the increase of m-MS content, showing that the addition of m-MS into PCL-PEG-PCL could promote cell attachment and proliferation. The results suggest that the incorporation of m-MS into PCL-PEG-PCL could produce bioactive composites with improved hydrophilicity, degradability, bioactivity, and cytocompatibility.

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Changes of calcium, silicon, magnesium, and phosphorus concentrations in m-MPC with 40 w% m-MS after soaking in simulated body fluid.Abbreviations: m-MPC, m-MS and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) composite; m-MS, mesoporous magnesium silicate.
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f7-ijn-9-2665: Changes of calcium, silicon, magnesium, and phosphorus concentrations in m-MPC with 40 w% m-MS after soaking in simulated body fluid.Abbreviations: m-MPC, m-MS and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) composite; m-MS, mesoporous magnesium silicate.

Mentions: We examined the changes in the concentrations of calcium, phosphorus, magnesium, and silicon after soaking the m-MPC with 40 w% m-MS in SBF solution for various periods of time (Figure 7). Magnesium and silicon concentrations increased rapidly up to 6 hours in the specimens, and, thereafter, continued to increase at a slower rate up to 96 hours. In contrast to the increasing magnesium and silicon concentrations, calcium and phosphorous ion concentrations decreased gradually throughout the soaking period.


Mesoporous magnesium silicate-incorporated poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) bioactive composite beneficial to osteoblast behaviors.

Niu Y, Dong W, Guo H, Deng Y, Guo L, An X, He D, Wei J, Li M - Int J Nanomedicine (2014)

Changes of calcium, silicon, magnesium, and phosphorus concentrations in m-MPC with 40 w% m-MS after soaking in simulated body fluid.Abbreviations: m-MPC, m-MS and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) composite; m-MS, mesoporous magnesium silicate.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4043715&req=5

f7-ijn-9-2665: Changes of calcium, silicon, magnesium, and phosphorus concentrations in m-MPC with 40 w% m-MS after soaking in simulated body fluid.Abbreviations: m-MPC, m-MS and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) composite; m-MS, mesoporous magnesium silicate.
Mentions: We examined the changes in the concentrations of calcium, phosphorus, magnesium, and silicon after soaking the m-MPC with 40 w% m-MS in SBF solution for various periods of time (Figure 7). Magnesium and silicon concentrations increased rapidly up to 6 hours in the specimens, and, thereafter, continued to increase at a slower rate up to 96 hours. In contrast to the increasing magnesium and silicon concentrations, calcium and phosphorous ion concentrations decreased gradually throughout the soaking period.

Bottom Line: The results suggest that the mechanical properties of compressive strength and elastic modulus, as well as hydrophilicity, of the m-MPC increased with increase of m-MS content in the composites.In cell cultural experiments, the results showed that the attachment and viability ratio of MG63 cells on m-MPC increased significantly with the increase of m-MS content, showing that the addition of m-MS into PCL-PEG-PCL could promote cell attachment and proliferation.The results suggest that the incorporation of m-MS into PCL-PEG-PCL could produce bioactive composites with improved hydrophilicity, degradability, bioactivity, and cytocompatibility.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.

ABSTRACT
Mesoporous magnesium silicate (m-MS) and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) composite (m-MPC) was synthesized by solvent casting method. The results suggest that the mechanical properties of compressive strength and elastic modulus, as well as hydrophilicity, of the m-MPC increased with increase of m-MS content in the composites. In addition, the weight loss of the m-MPC improved significantly with the increase of m-MS content during composite soaking in phosphate-buffered saline for 10 weeks, indicating that incorporation of m-MS into PCL-PEG-PCL could enhance the degradability of the m-MPC. Moreover, the m-MPC with 40 w% m-MS could induce a dense and continuous apatite layer on its surface after soaking in simulated body fluid for 5 days, which was better than m-MPC 20 w% m-MS, exhibiting excellent in vitro bioactivity. In cell cultural experiments, the results showed that the attachment and viability ratio of MG63 cells on m-MPC increased significantly with the increase of m-MS content, showing that the addition of m-MS into PCL-PEG-PCL could promote cell attachment and proliferation. The results suggest that the incorporation of m-MS into PCL-PEG-PCL could produce bioactive composites with improved hydrophilicity, degradability, bioactivity, and cytocompatibility.

Show MeSH
Related in: MedlinePlus