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|Title:||Customizing the degradation and load-bearing profile of 3D polycaprolactone-tricalcium phosphate scaffolds under enzymatic and hydrolytic conditions|
|Source:||Yeo, A., Sju, E., Rai, B., Teoh, S.H. (2008-11). Customizing the degradation and load-bearing profile of 3D polycaprolactone-tricalcium phosphate scaffolds under enzymatic and hydrolytic conditions. Journal of Biomedical Materials Research - Part B Applied Biomaterials 87 (2) : 562-569. ScholarBank@NUS Repository. https://doi.org/10.1002/jbm.b.31145|
|Abstract:||The degradation of polycaprolactone-20% tricalcium phosphate (PCL-TCP) scaffolds was customized for dentoalveolar augmentation applications, where 5-6 months period is optimal. The scaffolds were treated with either 3M sodium hydroxide (NaOH) or 0.1% lipase solution for a total of 108 h. A greater degree of degradation and reduction in the physical properties of the scaffolds was observed in the lipase treated when compared with NaOH-treated scaffolds. After 108 h, increases in weight loss and average porosity of the scaffolds in the lipase-treated group measured 90.6% and 22.9%, respectively, when compared with 52.8% and 11.8% in the NaOH-treated group. The mechanical testing results revealed a similar trend, with a complete loss of compressive strength and modulus measured as early as 60 h in the lipase-treated group. The honeycomblike architecture was well preserved throughout the experiment only for the NaOH-treated scaffolds in addition to a favorable surface roughness ideal for bone-regeneration applications. In conclusion, pretreatment with NaOH demonstrates a simple approach for tailoring the physical properties and degradation rate of PCL-TCP scaffolds for the potential use as biomaterials targeted for dentoalveolar bone-regeneration procedures. © 2008 Wiley Periodicals, Inc.|
|Source Title:||Journal of Biomedical Materials Research - Part B Applied Biomaterials|
|Appears in Collections:||Staff Publications|
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