Preparation of differently sized injectable collagen micro-scaffolds
SourceJournal of Tissue Engineering and Regenerative Medicine, 5, 8, (2011), pp. 665-7
Article / Letter to editor
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Journal of Tissue Engineering and Regenerative Medicine
SubjectNCMLS 3: Tissue engineering and pathology
Collagen scaffolds have been widely used as biomaterials for tissue engineering. In general, application of scaffolds requires surgery. In this study, we describe a new and simple technique to prepare porous micro-scaffolds from type I collagen fibrils which can be injected, thus preventing surgery. The size of the micro-scaffolds could be easily controlled using sieves with varying cut-offs. EDC-NHS crosslinking was essential to stabilize the collagen micro-scaffolds. Micro-scaffolds were highly porous and could be injected through small diameter needles (18-21 gauge). Collagen micro-scaffolds may be used as injectables for the local delivery of effector molecules and/or cells, thus creating specific niches to enhance local tissue regeneration.
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