作者
Sandra C Rodrigues, Christiane L Salgado, Abhishek Sahu, Monica P Garcia, Maria H Fernandes, Fernando J Monteiro
发表日期
2013/4
期刊
Journal of biomedical materials research Part A
卷号
101
期号
4
页码范围
1080-1094
出版商
Wiley Subscription Services, Inc., A Wiley Company
简介
Recent efforts of bone repair focus on development of porous scaffolds for cell adhesion and proliferation. Collagen‐nanohydroxyapatite (HA) scaffolds (70:30; 50:50; and 30:70 mass percentage) were produced by cryogelation technique using 1‐ethyl‐3‐(3‐dimethyl aminopropyl) carbodiimide hydrochloride/N‐hydroxysuccinimide as crosslinking agents. A pure collagen scaffold was used as control. Morphology analysis revealed that all cryogels had highly porous structure with interconnective porosity and the nanoHA aggregates were randomly dispersed throughout the scaffold structure. Chemical analysis showed the presence of all major peaks related to collagen and HA in the biocomposites and indicated possible interaction between nanoHA aggregates and collagen molecules. Porosity analysis revealed an enhancement in the surface area as the nanoHA percentage increased in the collagen structure …
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