AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: LUCIAN CRISTIAN POP, GABRIEL BARTA, LIVIU COSMIN COTET, KLARA MAGYARI, MONICA BAIA, LUCIAN BARBU TUDORAN, RODICA UNGUR, DAN C. VODNAR, LUCIAN BAIA, VIRGINIA DANCIU.
DOI: 10.24193/subbchem.2022.1.18
Published Online: 2021-03-15
Published Print: 2021-03-30
pp. 281-296
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Due to its optical, chemical and electronic properties, graphene oxide (GO), among others subtypes of graphene-based materials, has been broadly studied over the past decade. Thanks to its contact-based antimicrobial activity, GO represents a good candidate for the construction of materials with antimicrobial properties. Thus, GO’s capability to interact with microbes delivers a prospect to improve textiles designed for usage as personal protective equipment. This paper presents the results concerning the obtaining of the GO-impregnated SFM-1 polypropylene membrane, its morpho-structure and antimicrobial activity and adherence on two gram-negative bacteria (E. coli, S. thyphimurium), a gram-positive bacterium (S. aureus) and a yeast (C. albicans). The investigations on the GO-impregnated polypropylene membrane, through Raman spectroscopy, Scanning and Transmission electron microscopy (SEM, TEM), Energy Dispersive X-Ray Analysis (EDX), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) suggested the successful polypropylene impregnation with GO. The antibacterial tests have shown that all but one of the microorganisms (S. typhimurium) displayed to be susceptible to the antimicrobial activity of the GO material. Bacterial adhesion was also checked to simulate their affinity for the polypropylene surface immediately after impregnation, in this case the best results were observed on the S. aureus strains.
Keywords: graphene materials; polymer; composite; bacterial adherence, antimicrobial activity.
