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3D microtomographic characterization of precision fused deposited biocompatible polymer scaffolds
Conference proceeding

3D microtomographic characterization of precision fused deposited biocompatible polymer scaffolds

A.L Darling and W Sun
Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439), v 2, pp 1196-1199 Vol.2
2003

Abstract

Biodegradable materials Extracellular Head Image reconstruction In vitro In vivo Manufacturing Microarchitecture Polymers Tissue engineering
One of the dominant approaches to tissue engineering is the seeding of biodegradable biocompatible polymer scaffolds with progenitor cells prior to 3D culture or implantation. The microarchitecture of these scaffolds has direct effects upon the ability of cells to attach, migrate, and thrive. Microtomographic (micro-CT) scanners enable high speed 3D characterization of the salient features of these polymer scaffolds. A micro-CT scan followed by 3D reconstruction of serial image sections can determine porosity, pore size, pore interconnectivity, strut size and 3D microarchitecture. In this study, four polymer samples with different microarchitectures were manufactured through fused deposition free-form fabrication and subsequently characterized through micro-CT analysis. A desktop micro-CT scanner was used to examine each sample at approximately 19.1 micron resolution. 2D analyses and 3D reconstructions of core regions of each sample were performed. These results illustrate that qualitative and quantitative analysis of polymer scaffolds is possible using micro-CT and 3D reconstruction techniques.

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Web of Science research areas
Cardiac & Cardiovascular Systems
Computer Science, Interdisciplinary Applications
Engineering, Biomedical
Medicine, Research & Experimental
Neurosciences
Radiology, Nuclear Medicine & Medical Imaging
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