SciELO - Scientific Electronic Library Online

 
vol.89 issue3  suppl.Peculiar anatomical traits, high durability, and potential ornamental use of Cyclanthaceae as fresh foliageIn vitro antifungal activity of Myracrodruon urundeuva Allemão against human vaginal Candida species author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Anais da Academia Brasileira de Ciências

Print version ISSN 0001-3765On-line version ISSN 1678-2690

Abstract

AYYAR, MANIKANDAN et al. Surface, thermal and hemocompatible properties of novel single stage electrospun nanocomposites comprising polyurethane blended with bio oilTM. An. Acad. Bras. Ciênc. [online]. 2017, vol.89, n.3, suppl., pp.2411-2422.  Epub Oct 26, 2017. ISSN 0001-3765.  https://doi.org/10.1590/0001-3765201720170230.

In this work, the physicochemical and blood compatibility properties of prepared PU/Bio oil nanocomposites were investigated. Scanning electron microscope (SEM) studies revealed the reduction of mean fiber diameter (709 ± 211 nm) compared to the pristine PU (969 nm ± 217 nm). Fourier transform infrared spectroscopy (FTIR) analysis exposed the characteristic peaks of pristine PU. Composite peak intensities were decreased insinuating the interaction of the bio oilTM with the PU. Contact angle analysis portrayed the hydrophobic nature of the fabricated patch compared to pristine PU. Thermal gravimetric analysis (TGA) depicted the better thermal stability of the novel nanocomposite patch and its different thermal behavior in contrast with the pristine PU. Atomic force microscopy (AFM) analysis revealed the increase in the surface roughness of the composite patch. Activated partial thromboplastin time (APTT) and prothrombin time (PT) signified the novel nanocomposite patch ability in reducing the thrombogenicity and promoting the anticoagulant nature. Finally the hemolytic percentage of the fabricated composite was in the acceptable range revealing its safety and compatibility with the red blood cells. To reinstate, the fabricated patch renders promising physicochemical and blood compatible nature making it a new putative candidate for wound healing application.

Keywords : Polyurethane; Bio oilTM; Nanocomposite; atomic force microscopy; wound healing.

        · text in English     · English ( pdf )