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Luis Humberto Delgado-Rangel,Julia Hernández-Vargas,Marymar Becerra-González,Ataúlfo Martínez-Torres,Evgen Prokhorov,J. Betzabe González Campos 한국섬유공학회 2019 Fibers and polymers Vol.20 No.12
The combination of collagen (CG), chondroitin sulfate (CS), and hyaluronic acid (HA) with poly(vinyl alcohol)(PVA) was explored to produce 3D tri-component scaffolds with enhanced mechanical properties and potential use in tissueengineering. The CG/PVA/CS and CG/PVA/HA electrospun scaffolds were crosslinked with citric acid, a cytocompatiblecrosslinker, which induced improved mechanical properties in both dry and wet state, especially with large elongation atbreak in the wet state. Ultimate tensile stress under the dry and wet state are significantly higher than those previouslyreported about collagen based nanofibers. IR, DSC and dielectric analysis demonstrated homogenous blending without phaseseparation and strong interactions between components. All scaffolds had swelling pH-sensitive behavior, making thempromising materials for drug delivery systems. The nanofiber mats permitted adhesion and proliferation of human embryonickidney cells; this cell line formed clusters that adapted well to the mats’ surface, through which the cells extended theirprocesses.