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1

Otorhinolaryngology, Carol Davila University of Medicine and Pharmacy, Traian Vuia no 6, Bucharest 020956, Romania

2

Department, Doctor Anghel Medical Center, Theodor Sperantia Street, Bucharest 30932, Romania

3

Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Bucharest 011061, Romania

4

Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest 060101, Romania





*

Author to whom correspondence should be addressed.



Abstract Cutaneous wounds are often superinfected during the healing process and this leads to prolonged convalescence and discomfort. Usage of suitable wound dressings is very important for an appropriate wound care leading to a correct healing. The aim of this study was to demonstrate the influence of a nano-coated wound dressing WD on Candida albicans colonization rate and biofilm formation. The modified WD was achieved by submerging the dressing pieces into a nanofluid composed of functionalized magnetite nanoparticles and Satureja hortensis SO essential oil EO. Chemical composition of the EO was established by GC-MS. The fabricated nanostructure was characterized by X-ray Diffraction XRD, Transmission Electron Microscopy TEM, Differential Thermal Analysis DTA and Fourier Transform-Infrared Spectroscopy FT-IR. The analysis of the colonized surfaces using Scanning Electron Microscopy SEM revealed that C. albicans adherence and subsequent biofilm development are strongly inhibited on the surface of wound dressing fibers coated with the obtained nanofluid, comparing with regular uncoated materials. The results were also confirmed by the assay of the viable fungal cells embedded in the biofilm. Our data demonstrate that the obtained phytonanocoating improve the resistance of wound dressing surface to C. albicans colonization, which is often an etiological cause of local infections, impairing the appropriate wound healing. View Full-Text

Keywords: nano-modified wound dressing; Satureja hortensis essential oil; fungal biofilm; Candida albicans; magnetite nanoparticles; iron oxide nano-modified wound dressing; Satureja hortensis essential oil; fungal biofilm; Candida albicans; magnetite nanoparticles; iron oxide





Autor: Ion Anghel 1,2, Alexandru Mihai Grumezescu 3, Alina Maria Holban 4,* , Anton Ficai 3, Alina Georgiana Anghel 1,2 and Mariana Carmen Chifiriuc 4

Fuente: http://mdpi.com/



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