Bacterial growth on chitosan-coated polypropylene textile

Area of Science:

• Materials Science
• Microbiology
• Environmental Engineering

Background:

• Biofouling, the accumulation of microorganisms on surfaces, poses significant challenges in aqueous industrial systems.
• Effective prevention strategies are crucial for maintaining system efficiency and longevity.
• Developing reliable methods to evaluate anti-biofouling material properties is essential.

Purpose of the Study:

• To develop and validate a method for evaluating the anti-biofouling capabilities of material coatings.
• To assess the efficacy of chitosan-coated polypropylene nonwoven textiles against biofilm formation.

Main Methods:

• Chitosan coating was applied to polypropylene nonwoven textile using dielectric barrier discharge plasma activation.
• Biofilm inhibition was tested using Pseudomonas aeruginosa cultures and confocal laser scanning microscopy.
• The textile's performance as a filter medium for river water was evaluated by measuring pressure changes to quantify biofouling.

Main Results:

• Chitosan coating demonstrated significant antibacterial properties against Pseudomonas aeruginosa.
• Confocal microscopy allowed for detailed bacterial enumeration and biofilm structure characterization.
• The developed method effectively quantified biofouling levels, showing reduced accumulation on coated textiles.

Conclusions:

• The developed method provides a reliable means to evaluate the anti-biofouling potential of material coatings.
• Chitosan-coated polypropylene nonwoven textiles exhibit promising resistance to biofilm formation.
• This research contributes to the development of effective biofouling prevention strategies for industrial applications.