ISI Papers With Our Products
Title: Fabrication and characterization of nanofibrous tricuspid valve scaffold based on polyurethane for heart valve tissue engineering
Journal: Nanomedicine Research Journal
Author: 1. Saman Firoozi, Mohammad Ali Derakhshan, Ali Rashti, Reza Faridi-Majidi, 1,5. Hossein Ghanbari, 2. Roya Karimi, 3. Babak Negahdari, 4. Samaneh Mashaghi
Year: 2017
Address: 1. Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University
of Medical Sciences, Tehran, Iran
2. Department of Tissue engineering, School of Advanced Technologies, Tehran University of Medical Sciences,
Tehran, Iran
3. Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of
Medical Sciences, Tehran, Iran
4. Laboratory for Integrated Science and Engineering School of Engineering and Applied Sciences Harvard University
9 Oxford St. Cambridge, MA 0213, USA
5. Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of
Medical Sciences, Tehran, Iran
Abstract: Objective(s): Tissue engineering represents a new approach to solve the current
complications of the heart valve replacements by offering viable valve prosthesis with
growth and remodeling capability. In this project, electrospinning and dip coating techniques
were used to fabricate heart valve constructs from medical grade polyurethane (PU).
Methods: First, a mold of tricuspid valve was dip coated in a PU solution, except
for its valvular parts. Then, PU nanofibers were electrospun on the dip coated
mold to form the valves. The morphology and diameter of nanofibers were
investigated by SEM and contact angle measurements were done to evaluate
the wettability of scaffolds. Thereafter, a tensile tester machine was used to
assess mechanical properties of nanofibrous scaffolds. Then, the HUVEC cell
line was cultured on the surface of scaffolds.
Results: The SEM images showed the proper nanofibrous structure of the prepared
scaffolds. Also, the obtained structure demonstrated appropriate tensile properties.
Based on direct and indirect MTT, DAPI staining and SEM results, nanofibers were
biocompatible and cells attached to the surface of the scaffolds, properly.
Conclusions: This study demonstrated polyurethane-based nanofibrous
scaffolds for engineering artificial heart valve. The presented scaffold provides
temporary support for cells prior to generation of extracellular matrix (ECM).
Keywords: Electrospinning
Nanofibers
Heart valve
Polyurethane
Application: Scaffold, Tissue Engineering
Product Model 1: Electroris
Product Model 2:
URL: http://www.nanomedicine-rj.com/article_25686.html#="http://www.nanomedicine-rj.com" & "/article_25686.html"#