Related Experiment Video
Updated: Nov 7, 2025
06:42
Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
Published on: September 27, 2024
1.5K
A Comprehensive Review on Bio-Based Polybenzoxazines Emphasizing Their Antimicrobial Property.
Shakila Parveen Asrafali1, Thirukumaran Periyasamy1, Jaewoong Lee1
1Department of Fiber System Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Microorganisms
|January 25, 2025
Summary
Polybenzoxazines (PBzs) offer advanced antimicrobial properties for diverse applications. Their customizable structure and bio-based derivatives provide sustainable solutions for material science challenges.
Area of Science:
- Materials Science
- Polymer Chemistry
- Antimicrobial Technologies
Background:
- Polybenzoxazines (PBzs) are high-performance thermosetting polymers with excellent thermal, mechanical, and chemical resistance.
- Their unique structure allows for incorporation of bio-active groups, leading to significant antimicrobial potential.
- Applications span aerospace, electronics, and biomedical fields.
Purpose of the Study:
- To review the synthesis, antimicrobial mechanisms, and applications of PBzs and their bio-based derivatives.
- To highlight sustainable materials science advancements in PBz development.
- To explore the potential of PBzs in addressing global antimicrobial challenges.
Main Methods:
- Review of literature on PBz synthesis and functionalization.
- Analysis of antimicrobial mechanisms, including surface interactions and functional group effects.
- Investigation of modifications with nanoparticles, organic agents, and natural bio-actives.
- Examination of bio-based and hybrid PBz systems (e.g., with curcumin, vanillin, chitosan, cellulose).
Main Results:
- PBzs exhibit antimicrobial activity via hydrophobic interactions and reactive functional groups, inhibiting microbial adhesion and biofilm formation.
- Bio-based PBzs from renewable resources show significant antimicrobial efficacy and environmental benefits.
- Hybrid PBzs and nanocomposites (e.g., with silver nanoparticles, zirconia) demonstrate enhanced antimicrobial and mechanical properties.
- Chitosan-PBz composites and cellulose blends improve performance, while urushiol-based PBzs offer eco-friendly antifouling solutions.
Conclusions:
- PBzs are versatile materials with tunable properties, flame retardancy, low water absorption, and high mechanical strength.
- Their customizable nature and inherent advantages make them suitable for diverse industrial and medical applications.
- PBzs represent a transformative potential for sustainable and multifunctional antimicrobial material science solutions.
Related Concept Videos
01:28Antimicrobial Effectiveness
709
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
709
01:28Biological Methods for Microbial Control
529
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
529
01:27Chemical Agents for Microbial Control
512
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
512
01:29Biofilms
597
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
597
01:28Gene Regulation in Microbial Communities: Quorum Sensing
189
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
189
01:10Radical Chain-Growth Polymerization: Overview
2.9K
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
2.9K