Antimicrobial and Wound Healing Effects of Metal Oxide Nanoparticles-Enriched Wound Dressing

Abbas, Sara; Haider, Adawiya J.; Al-Musawi, Sharafaldin

doi:10.1142/s1793292023300050

Cited by 2 publications

(1 citation statement)

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“…The incorporation of metal nanoparticles (NPs) or their oxides (for example, Au/AuO [ 20 ], Ag/Ag 2 O, Cu/CuO [ 21 ], Mg/MgO [ 22 ], etc.) into the structure of a biodegradable fiber mat has a positive effect on growth and cell proliferation [ 23 , 24 , 25 ]. At the same time, the therapeutic efficiency of polymer scaffolds depends on the presence of antibacterial properties that prevent or slow down inflammation.…”

Section: Introductionmentioning

confidence: 99%

Polycaprolactone Nanofibers Functionalized by Fibronectin/Gentamicin and Implanted Silver for Enhanced Antibacterial Properties, Cell Adhesion, and Proliferation

Permyakova,

Solovieva,

Sitnikova

et al. 2024

Polymers

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Novel nanomaterials used for wound healing should have many beneficial properties, including high biological and antibacterial activity. Immobilization of proteins can stimulate cell migration and viability, and implanted Ag ions provide an antimicrobial effect. However, the ion implantation method, often used to introduce a bactericidal element into the surface, can lead to the degradation of vital proteins. To analyze the surface structure of nanofibers coated with a layer of plasma COOH polymer, fibronectin/gentamicin, and implanted with Ag ions, a new X-ray photoelectron spectroscopy (XPS) fitting method is used for the first time, allowing for a quantitative assessment of surface biomolecules. The results demonstrated noticeable changes in the composition of fibronectin- and gentamicin-modified nanofibers upon the introduction of Ag ions. Approximately 60% of the surface chemistry has changed, mainly due to an increase in hydrocarbon content and the introduction of up to 0.3 at.% Ag. Despite the significant degradation of fibronectin molecules, the biological activity of Ag-implanted nanofibers remained high, which is explained by the positive effect of Ag ions inducing the generation of reactive oxygen species. The PCL nanofibers with immobilized gentamicin and implanted silver ions exhibited very significant antipathogen activity to a wide range of Gram-positive and Gram-negative strains. Thus, the results of this work not only make a significant contribution to the development of new hybrid fiber materials for wound dressings but also demonstrate the capabilities of a new XPS fitting methodology for quantitative analysis of surface-related proteins and antibiotics.

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