Synthesis of three-dimensional calcium carbonate nanofibrous structure from eggshell using femtosecond laser ablation

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Abstract

Background: Natural biomaterials from bone-like minerals derived from avian eggshells have been considered as promising bone substitutes owing to their biodegradability, abundance, and lower price in comparison with synthetic biomaterials. However, cell adhesion to bulk biomaterials is poor and surface modifications are required to improve biomaterial-cell interaction. Three-dimensional (3D) nanostructures are preferred to act as growth support platforms for bone and stem cells. Although there have been several studies on generating nanoparticles from eggshells, no research has been reported on synthesizing 3D nanofibrous structures.Results: In this study, we propose a novel technique to synthesize 3D calcium carbonate interwoven nanofibrous platforms from eggshells using high repetition femtosecond laser irradiation. The eggshell waste is value engineered to calcium carbonate nanofibrous layer in a single step under ambient conditions. Our striking results demonstrate that by controlling the laser pulse repetition, nanostructures with different nanofiber density can be achieved. This approach presents an important step towards synthesizing 3D interwoven nanofibrous platforms from natural biomaterials.Conclusion: The synthesized 3D nanofibrous structures can promote biomaterial interfacial properties to improve cell-platform surface interaction and develop new functional biomaterials for a variety of biomedical applications. © 2011 Tavangar et al; licensee BioMed Central Ltd.

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Tavangar, A., Tan, B., & Venkatakrishnan, K. (2011). Synthesis of three-dimensional calcium carbonate nanofibrous structure from eggshell using femtosecond laser ablation. Journal of Nanobiotechnology, 9. https://doi.org/10.1186/1477-3155-9-1

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