Polymeric coating doped with nanomaterials for functional impact on different substrates

Area of Science:

• Materials Science
• Nanotechnology
• Microbiology

Background:

• Microorganism contamination on surfaces poses significant health risks.
• Development of effective antimicrobial coatings is crucial for public health and safety.
• Traditional coatings often lack robust antimicrobial and antifungal capabilities.

Purpose of the Study:

• To synthesize and characterize a water-based acrylic paint incorporating silver nanoparticles (Ag NPs).
• To evaluate the antimicrobial and antifungal efficacy of the developed paint.
• To assess the adhesion properties of the Ag NP-infused paint coating.

Main Methods:

• Facile in situ reduction process using silver nitrate (AgNO3) and sodium acrylate.
• Characterization using Fourier-Transform Infrared (FTIR) and UV-Visible spectroscopy.
• Antimicrobial and antifungal activity testing against various bacterial and fungal strains.
• Adhesion testing of the coated substrate.

Main Results:

• Successful integration of Ag NPs within the acrylic polymer matrix confirmed by FTIR and UV-Visible spectroscopy.
• Significant inhibition zones observed against Gram-negative (Escherichia coli, Acinetobacter baumannii, Klebsiella pneumoniae) and Gram-positive (Bacillus cereus) bacteria.
• Substantial antifungal activity demonstrated against Aspergillus niger, Aspergillus terreus, and Rhizopus arrhizus.
• Optimal adhesion properties observed at 50% and 80% solution concentrations of the polymeric coating.

Conclusions:

• The developed water-based acrylic paint with Ag NPs offers potent antimicrobial and antifungal properties.
• The paint provides effective surface protection for various substrates, reducing microorganism contamination.
• This innovative coating technology has broad applications in industries like healthcare and construction.