MAPLE Coatings Embedded with Essential Oil-Conjugated Magnetite for Anti-Biofilm Applications

The present study reports on the development and evaluation of nanostructured composite coatings of polylactic acid (PLA) embedded with iron oxide nanoparticles (Fe O ) modified with Eucalyptus ( ) essential oil. The co-precipitation method was employed to synthesize the magnetite particles conjugat...

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Bibliographic Details
Published in:Materials 2021-03, Vol.14 (7), p.1612
Main Authors: Gherasim, Oana, Popescu, Roxana Cristina, Grumezescu, Valentina, Mogoșanu, George Dan, Mogoantă, Laurențiu, Iordache, Florin, Holban, Alina Maria, Vasile, Bogdan Ștefan, Bîrcă, Alexandra Cătălina, Oprea, Ovidiu-Cristian, Grumezescu, Alexandru Mihai, Andronescu, Ecaterina
Format: Article
Language:English
Subjects:
Antibiotics
Biocompatibility
Biofilms
Coatings
Drug resistance
E coli
Electron microscopy
Essential oils
Eucalyptus
Fourier transforms
Glass substrates
Infrared analysis
Infrared spectroscopy
Investigations
Iron oxides
Laser processing
Lasers
Magnetite
Microorganisms
Nanoparticles
Nanotechnology
Oils & fats
Pharmaceuticals
Photon correlation spectroscopy
Phytochemicals
Polylactic acid
Pulsed lasers
Scanning electron microscopy
Software
Stem cells
Thermogravimetric analysis
Thin films
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Summary:The present study reports on the development and evaluation of nanostructured composite coatings of polylactic acid (PLA) embedded with iron oxide nanoparticles (Fe O ) modified with Eucalyptus ( ) essential oil. The co-precipitation method was employed to synthesize the magnetite particles conjugated with Eucalyptus natural antibiotic (Fe O @EG), while their composition and microstructure were investigated using grazing incidence X-ray diffraction (GIXRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), transmission electron microscopy (TEM) and dynamic light scattering (DLS). The matrix-assisted pulsed laser evaporation (MAPLE) technique was further employed to obtain PLA/Fe O @EG thin films. Optimal experimental conditions for laser processing were established by complementary infrared microscopy (IRM) and scanning electron microscopy (SEM) investigations. The in vitro biocompatibility with eukaryote cells was proven using mesenchymal stem cells, while the anti-biofilm efficiency of composite PLA/Fe O @EG coatings was assessed against Gram-negative and Gram-positive pathogens.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14071612