Next Article in Journal
Exploring the Molecular Structure and Treatment Dynamics of Cellulose Fibres with Photoacoustic and Reversed Double-Beam Spectroscopy
Next Article in Special Issue
Active Polymers Decorated with Major Acid Groups for Water Treatment: Potentials and Challenges
Previous Article in Journal
Carbon Fiber-Reinforced Thermoplastic Composite Coatings for Steel Pipelines
Previous Article in Special Issue
Silica-Based Composite Sorbents for Heavy Metal Ions Removal from Aqueous Solutions
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Polymers
Volume 16
Issue 23
10.3390/polym16233418
polymers-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Antibiofilm Effects of Modifying Polyvinylidene Fluoride Membranes with Polyethylenimine, Poly(acrylic acid) and Graphene Oxide

by
Mario Castillo-Ruiz
1,2,
Constanza Negrete
3,
Juan Pablo Espinoza
4,
Iván Martínez
5,
Leslie K. Daille
6,
Christopher González
7 and
Bárbara Rodríguez
7,*
1
Escuela de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad Bernardo O’Higgins, General Gana 1702, Santiago 8370854, Chile
2
Escuela de Química y Farmacia, Facultad de Medicina, Universidad Andres Bello, Sazié 2320, Santiago 8370134, Chile
3
Facultad de Ciencias Naturales, Matemáticas y del Medioambiente, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa 7800003, Chile
4
CIBQA, Facultad de Ciencias de la Salud, Universidad Bernardo O’Higgins, Fábrica 1865, Santiago 8320000, Chile
5
Departamento de Ciencias Químicas y Biológicas, Facultad de Ciencias de la Salud, Universidad Bernardo O’Higgins, General Gana 1702, Santiago 8370854, Chile
6
Centro GEMA-Genómica, Ecología & Medio Ambiente, Universidad Mayor, Camino La Pirámide 5750, Santiago 8580745, Chile
7
CIRENYS, Escuela de Química y Farmacia, Facultad de Ciencias Médicas, Universidad Bernardo O’Higgins, General Gana 1702, Santiago 8370854, Chile
*
Author to whom correspondence should be addressed.
Polymers 2024, 16(23), 3418; https://doi.org/10.3390/polym16233418
Submission received: 30 October 2024 / Revised: 26 November 2024 / Accepted: 2 December 2024 / Published: 5 December 2024
(This article belongs to the Special Issue Advanced Polymer Materials for Water and Wastewater Treatment)
Browse Figures
Versions Notes

Abstract

Biofouling in membrane filtration systems poses significant operational challenges, leading to decreased permeate flux. The aim of this work was to study the anti-biofilm properties of new nanofiltration membranes produced via layer-by-layer, LBL, assembly by coating a polyvinylidene fluoride (PVDF) support with a polyethylenimine (PEI) and poly(acrylic acid)/graphene oxide (PAA-GO) mixture. The membranes were characterized according to contact angle, scanning electron microscopy (SEM), atomic force microscopy and their Z-potential. Biofilm quantification and characterization were carried out using crystal violet staining and SEM, while bacterial viability was assessed by using colony-forming units. The membrane with three bilayers ((PAA-PEI)3/PVDF) showed a roughness of 77.78 nm. The incorporation of GO ((GO/PAA-PEI)3/PVDF) produced a membrane with a smoother surface (roughness of 26.92 nm) and showed salt rejections of 16% and 68% for NaCl and Na2SO4, respectively. A significant reduction, ranging from 82.37 to 77.30%, in biofilm formation produced by S. aureus and E. coli were observed on modified membranes. Additionally, the bacterial viability on the modified membranes was markedly reduced (67.42–99.98%). Our results show that the modified membranes exhibited both antibiofilm and antimicrobial capacities, suggesting that these properties mainly depend on the properties of the modifying agents, as the initial adherence on the membrane surface was not totally suppressed, but the proliferation and formation of EPSs were prevented.
Keywords: membranes; filtration; polyelectrolytes; antibacterial; antibiofilm; LBL assembly membranes; filtration; polyelectrolytes; antibacterial; antibiofilm; LBL assembly

Share and Cite

MDPI and ACS Style

Castillo-Ruiz, M.; Negrete, C.; Espinoza, J.P.; Martínez, I.; Daille, L.K.; González, C.; Rodríguez, B. Antibiofilm Effects of Modifying Polyvinylidene Fluoride Membranes with Polyethylenimine, Poly(acrylic acid) and Graphene Oxide. Polymers 2024, 16, 3418. https://doi.org/10.3390/polym16233418

AMA Style

Castillo-Ruiz M, Negrete C, Espinoza JP, Martínez I, Daille LK, González C, Rodríguez B. Antibiofilm Effects of Modifying Polyvinylidene Fluoride Membranes with Polyethylenimine, Poly(acrylic acid) and Graphene Oxide. Polymers. 2024; 16(23):3418. https://doi.org/10.3390/polym16233418

Chicago/Turabian Style

Castillo-Ruiz, Mario, Constanza Negrete, Juan Pablo Espinoza, Iván Martínez, Leslie K. Daille, Christopher González, and Bárbara Rodríguez. 2024. "Antibiofilm Effects of Modifying Polyvinylidene Fluoride Membranes with Polyethylenimine, Poly(acrylic acid) and Graphene Oxide" Polymers 16, no. 23: 3418. https://doi.org/10.3390/polym16233418

APA Style

Castillo-Ruiz, M., Negrete, C., Espinoza, J. P., Martínez, I., Daille, L. K., González, C., & Rodríguez, B. (2024). Antibiofilm Effects of Modifying Polyvinylidene Fluoride Membranes with Polyethylenimine, Poly(acrylic acid) and Graphene Oxide. Polymers, 16(23), 3418. https://doi.org/10.3390/polym16233418

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop