Preparation and characterization of bioglass/polyvinyl alcohol composite hydrogel.
In order to form firm active fixation with the adjacent bone, a new kind of bioactive composite hydrogel was prepared with polyvinyl alcohol (PVA) and bioglass (BG) through ultrasonic dispersion, heat-high-pressure and freeze/thawed technique. A digital speckle correlation method (DSCM) was utilized to characterize the mechanical properties of the series of BG/PVA composites. Results showed that at different load pressures, the composite hydrogel displayed different displacement and deformation in the V field. Results also showed that an increase of PVA percentage (15-30 wt%) or of bioglass percentage (2-10 wt%) in composite hydrogel could lead to an increase in the elastic compression modulus. Scanning electron microscope results indicated that bioglass was uniformly dispersed in the BG/PVA composite hydrogel. The BG/PVA composite hydrogel shows a promising prospect as a new bionic cartilage implantation material.
Xu
Hong
H
College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.
Wang
Yingjun
Y
Zheng
Yudong
Y
Chen
Xiaofeng
X
Ren
Li
L
Wu
Gang
G
Huang
Xiaoshan
X
D018786:Bone Substitutes / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D019245:Compressive Strength; D004548:Elasticity; D005898:Glass; D020100:Hydrogels / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D013499:Surface Properties
D018786:Bone Substitutes; D020100:Hydrogels; C425330:bioactive glass 45S5; D011142:Polyvinyl Alcohol