Study of the Topography and Properties of Surface Layers in Frost-Resistant Rubbers Modified with Carbon Nanotubes

Muravyеva, T. I.; Shcherbakova, O. O.; Zagorskiy, D. L.; Lapitskaya, V. A.; Кузнецова, Т. А.

doi:10.1134/s1027451020020494

Cited by 1 publication

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The elastic properties of film surface can be quantitatively evaluated by PeakForce QNM (force volume mode). This regime allows to evaluate Young's modulus, adhesion, deformation and dissipation at the nanoscale in polymer films 52,53 . Force volume mapping integrates the force measurement with the topographic imaging allowing to establish correlations between forces and surface features.…”

Section: Discussionmentioning

confidence: 99%

Polyvinyl alcohol and pectin blended films: Preparation, characterization, and mesenchymal stem cells attachment

Kraskouski

Hileuskaya

Kulikouskaya

et al. 2020

J Biomedical Materials Res

View full text Add to dashboard Cite

The design of novel wound dressings for chronic wound treatment is still of great importance. One of the promising approaches is application of mesenchymal stem cells (MSCs), immobilized on a flexible polymer film, for healing. In this study, blended films based on polyvinyl alcohol (PVA) and pectin with different component ratio have been prepared by solution casting method and evaluated. Physicochemical properties of the formed PVA/pectin films, including their morphology, wettability, swelling, stability, mechanical characteristics, have been studied. We demonstrated that the surface of PVA/pectin films could be modified by ultraviolet or dielectric barrier discharge plasma exposure. After both ultraviolet and plasma treatment, the hydrophilicity of PVA/pectin films increased. It has been shown that additional crosslinking of PVA/pectin films with glutaraldehyde resulted in reinforcement of their structure. MSCs were cultured on neat and modified PVA/pectin samples to evaluate the effects of film characteristics and composition on cell behavior. It has been determined that MSCs effectively adhered to glutaraldehyde‐crosslinked PVA/pectin films and formed on them the monolayer culture of fibroblast‐like cells. The additional modification of PVA/pectin films with collagen resulted in enhancement of MSCs adhesion. Our results show that the obtained PVA/pectin films with adhered MSCs can be suggested for potential application as a part of novel complex wound dressings.

show abstract

Section: Discussionmentioning

confidence: 99%