The effect of Dunaliella salina extracts on the adhesion of Pseudomonas aeruginosa to 3D printed polyethylene terephthalate and polylactic acid

The effect of Dunaliella salina extracts on the adhesion of Pseudomonas aeruginosa to 3D printed polyethylene terephthalate and polylactic acid

Polyethylene terephthalate (PET) and polylactic acid (PLA) are among the polymers used in the food industry. In this study, crude extracts of Dunaliella salina were used to treat the surface of 3D printed materials studied, aiming to provide them with an anti-adhesive property against Pseudomonas ae...

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Bibliographic Details
Published in:Biofouling (Chur, Switzerland) Vol. 40; no. 8; pp. 447 - 466
Main Authors: Bechar, Azzeddine, Er-Rahmani, Sara, Hassi, Mohammed, Sadiki, Moulay, El Abed, Soumya, Ouaddi, Oumaima, Tizar, Fatima, Alouani, Mohamed, Ibnsouda Koraichi, Saad
Format: Journal Article
Language:English
Published: England Taylor & Francis 13-09-2024
Taylor & Francis Ltd
Subjects:
Adhesion
Adhesives
Anti-adhesive property
Contact angle
Dunaliella salina
Food industry
Hydrophilicity
Hydrophobicity
Polyethylene terephthalate
Polylactic acid
Polymers
Pseudomonas aeruginosa
Substrata
total energy of adhesion
Anti-adhesive property
total energy of adhesion
Dunaliella salina
hydrophobicity
polylactic acid
polyethylene terephthalate
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Summary:Polyethylene terephthalate (PET) and polylactic acid (PLA) are among the polymers used in the food industry. In this study, crude extracts of Dunaliella salina were used to treat the surface of 3D printed materials studied, aiming to provide them with an anti-adhesive property against Pseudomonas aeruginosa. The hydrophobicity of treated and untreated surfaces was characterized using the contact angle method. Furthermore, the adhesive behavior of P. aeruginosa toward the substrata surfaces was also studied theoretically and experimentally. The results showed that the untreated PLA was hydrophobic, while the untreated PET was hydrophilic. It was also found that the treated materials became hydrophilic and electron-donating. The total energy of adhesion revealed that P. aeruginosa adhesion was theoretically favorable on untreated materials, while it was unfavorable on treated ones. Moreover, the experimental data proved that the adhesion to untreated substrata was obtained, while there was complete inhibition of adhesion to treated surfaces.
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content type line 23
ISSN:0892-7014
1029-2454
1029-2454
DOI:10.1080/08927014.2024.2380404