Research on the Construction of Tissue Engineering Scaffolds by Alginate-hyaluronic Acid with Different Characteristics

(整期优先)网络出版时间:2014-03-13
/ 1
Thisresearchusesalginateandhyaluronicacidasthemaincomponenttopreparesupport,thenexploresthepossibilitiesasatissueengineeringscaffold.Firstly,prepareHAwithvariousaveragemolecularweightandalginatewithdifferentviscosity,mixthemupatacertainproportionandmakeitintoaAlgCa2+-HAcompositescaffoldwithafilm-formingmethod.Thisarticlediscussesthefeasibilityofthisscaffoldusedintissueengineeringfieldaccordingtotheconsequenceofmoisturecontenttesting,mechanicalanalysis,andscanningelectronmicroscopyanalysis.ThestructureandpropertiesofAlgCa2+-HAcompositescaffoldarecloselyrelatedtosomefactorssuchasaveragemolecularweightofhyaluronicacid,hyaluronicacidconcentration,alginateviscosity,cross-linkingagentsandprocessingtechnology.TheAlgCa2+-HAcompositematerial,whichisatdifferentproportionsandaddingdifferentcross-linkingagent,hassomecertaincharacteristics:moisturecontentrangingfrom50%to95%,tensilestrengthbetween2.69N/mm2and4.299N/mm2,andelongationatbreakisabout58%to160%.ThepreparedAlgCa2+-HAcompositescaffoldscanbeusedastissueengineeringscaffoldsresultingfromitshighmoisturecontent,goodmechanicalpropertiesandidealporestructure.更多还原