Publication Type:

Journal Article

Source:

Biomedical Materials (Bristol), Institute of Physics Publishing, Volume 7, Number 6 (2012)

URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-84867913640&partnerID=40&md5=652b8aac118810e3368a7f0d2b3052ab

Keywords:

article, biodegradability, biodegradation, Bone, Bone tissue engineering, Caprolactone, cell differentiation, cell interaction, cell proliferation, Cell-material interaction, Chemical properties, Electrospinning, gelatin, Gelatin nanoparticles, human, human cell, Human mesenchymal stem cells (hMSCs), human tissue, molecular scaffold, Nano-fibrous, nanocomposite, Nanocomposites, Nanofibers, nanoparticle, Nanoparticles, Osteogenic, physical chemistry, Physicochemical property, polycaprolactone, Polymeric nanocomposites, Polymers, Scaffolds (biology), Stem cells, Synthetic polymers, Time frame, tissue engineering

Abstract:

Nanofibrous semi-synthetic polymeric nanocomposite scaffolds were engineered by incorporating a maximum of 15 wt% biopolymeric gelatin nanoparticles (nGs) into the synthetic polymer poly(€-caprolactone) (PCL) prior to electrospinning. The effect of nGs in altering the physico-chemical properties, cell material interaction and biodegradability of the scaffolds was evaluated. Experimental results showed that the inherent hydrophobicity of PCL scaffolds remained unaltered even after the incorporation of hydrophilic nGs. However, breakdown of the continuous nanofibers into lengths less than 7 νm occurred within four to eight weeks in the presence of nGs in contrast with the greater than two year time frame for the degradation of PCL fibers alone that is known from the literature. In terms of cell-material interaction, human mesenchymal stem cells (hMSCs) were found to attach and spread better and faster on PCL-nG scaffolds compared to PCL scaffolds. However, there was no difference in hMSC proliferation and differentiation into osteogenic lineage between the scaffolds. These results indicate that PCL-nG nanofibrous nanocomposite scaffolds are an improvement over PCL scaffolds for bone tissue engineering applications in that the PCL-nG scaffolds provide improved cell interaction and are able to degrade and resorb more efficiently. © 2012 IOP Publishing Ltd.

Notes:

cited By 2

Cite this Research Publication

N. S. Binulal, Natarajan, A., Menon, D., Bhaskaran, V. K., Dr. Ullas Mony, and Nair, S. V., “Gelatin nanoparticles loaded poly(€-caprolactone) nanofibrous semi-synthetic scaffolds for bone tissue engineering”, Biomedical Materials (Bristol), vol. 7, 2012.

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