scholarly journals Submillimeter Diameter Poly(Vinyl Alcohol) Vascular Graft Patency in Rabbit Model

2016 ◽  
Vol 4 ◽  
Author(s):  
Marie F. A. Cutiongco ◽  
Marek Kukumberg ◽  
Jonnathan L. Peneyra ◽  
Matthew S. Yeo ◽  
Jia Y. Yao ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Vascular Graft ◽  
Rabbit Model ◽  
Graft Patency ◽  
Poly Vinyl Alcohol

scholarly journals One-Pot Covalent Grafting of Gelatin on Poly(Vinyl Alcohol) Hydrogel to Enhance Endothelialization and Hemocompatibility for Synthetic Vascular Graft Applications

2019 ◽  
Vol 3 (1) ◽  
pp. 693-703 ◽  
Author(s):  
Muhammad Rizwan ◽  
Yuan Yao ◽  
Maud B. Gorbet ◽  
John W. Tse ◽  
Deirdre E. J. Anderson ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Vascular Graft ◽  
Poly Vinyl Alcohol ◽  
One Pot ◽  
Covalent Grafting ◽  
Synthetic Vascular Graft

scholarly journals Changing Compliance of Poly(Vinyl Alcohol) Tubular Scaffold for Vascular Graft Applications Through Modifying Interlayer Adhesion and Crosslinking Density

2021 ◽  
Vol 7 ◽  
Author(s):  
YeJin Jeong ◽  
Yuan Yao ◽  
Tizazu H. Mekonnen ◽  
Evelyn K. F. Yim
Keyword(s):  
Mechanical Properties ◽  
Wall Thickness ◽  
Vinyl Alcohol ◽  
Vascular Graft ◽  
Small Diameter ◽  
Crosslinking Density ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Water Soluble Polymer ◽  
Physical Crosslinking

Poly(vinyl alcohol) (PVA) is a water-soluble polymer and forms a hydrogel that has been studied as a potential small-diameter (<6 mm) vascular graft implant. The PVA hydrogel crosslinked using sodium trimetaphosphate (STMP) has been shown to have many beneficial properties such as bioinert, low-thrombogenicity, and easy surface modification. Compared to conventional synthetic vascular graft materials, PVA has also shown to possess better mechanical properties; however, the compliance and other mechanical properties of PVA grafts are yet to be optimized to be comparable with native blood vessels. Mechanical compliance has been an important parameter to be studied for small-diameter vascular grafts, as compliance has been proposed to play an important role in intimal hyperplasia formation. PVA grafts are made using dip-casting a cylindrical mold into crosslinking solution. The number of dipping can be used to control the wall thickness of the resulting PVA grafts. In this study, we hypothesized that the number of dip layers, chemical and physical crosslinking, and interlayer adhesion strength could be important parameters in the fabrication process that would affect compliance. This work provides the relationship between the wall thickness, burst pressure, and compliance of PVA. Furthermore, our data showed that interlayer adhesion as well as chemical and physical crosslinking density can increase the compliance of PVA grafts.

High modulus poly (vinyl alcohol) fibers by zone drawing

1986 ◽  
Vol 1 (6) ◽  
pp. 861-869 ◽  
Author(s):  
Paul D. Garrett ◽  
David T. Grubb
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
High Modulus

BIODEGRADATION BEHAVIOR OF POLY(VINYL ALCOHOL) - WOOD COMPOSITES

2019 ◽  
Vol 18 (1) ◽  
pp. 125-136 ◽  
Author(s):  
Luiza Jecu ◽  
Iuliana Raut ◽  
Elena Grosu ◽  
Mariana Calin ◽  
Violeta Purcar ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Wood Composites
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