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Cold plasma as an alternative method to obtain sulfur-coated PET surfaces with enhanced antibacterial performance
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Cold plasma as an alternative method to obtain sulfur-coated PET surfaces with enhanced antibacterial performance
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Journal Article
Cold plasma as an alternative method to obtain sulfur-coated PET surfaces with enhanced antibacterial performance
2023
Overview
Radiofrequency (RF) plasma treatment was employed as an alternative method to synthesize sulfur deposits on polyethylene terephthalate (PET) surfaces. In this regard, Optical Emission Spectroscopy (OES) and Energy Dispersive Spectroscopy (EDS) analysis confirmed the obtention of deposits composed of 100% sulfur after the dissociation of hydrogen sulfide (H
2
S) with a carbon dioxide mixture (H
2
S/CO
2
) in a low-pressure discharge plasma reactor operated at 300 W input power. Furthermore, the structural and antimicrobial features of the obtained sulfur coatings on the PET surface were inspected. The sulfur-coated PET film showed a porous and roughened surface that provided high effectiveness in the inhibition against
S. aureus
and
P. aeruginosa
bacteria during the measurement of antimicrobial activity after 180 min of contact. According to the results, RF plasma treatment is an accessible technology to produce functional plastics that include sulfur deposits, which can be helpful in biomedical, food, textile, and other industries.
Publisher
Springer Netherlands,Springer,Springer Nature B.V
Subject
/ Antiinfectives and antibacterials
/ Bacteria
/ Carbon
/ Characterization and Evaluation of Materials
/ Chemistry and Materials Science
/ Coatings
/ Deposits
/ Gases
/ Industrial Chemistry/Chemical Engineering
/ Methods
/ Multidrug resistant organisms
/ Optical emission spectroscopy
/ Scanning electron microscopy
/ Sulfur
