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Related Concept Videos

Chemical Agents for Microbial Control01:27

Chemical Agents for Microbial Control

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...
Hand hygiene01:23

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Bioplastics01:27

Bioplastics

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Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
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Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

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...

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Updated: Jun 20, 2026

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
10:43

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Polyurethane-based leukocyte-inspired biocidal materials.

Gabriel Amitai1, Jill Andersen, Sara Wargo

  • 1McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA.

Biomaterials
|September 8, 2009
PubMed
Summary
This summary is machine-generated.

New antimicrobial materials mimic the body's natural defenses. These synthetic fibers generate halogens to kill bacteria like E. coli and S. aureus rapidly and effectively, offering reusable and potent biocidal activity.

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Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

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Last Updated: Jun 20, 2026

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
10:43

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

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09:22

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications
08:08

Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

Published on: August 4, 2018

Area of Science:

  • Biomaterials Science
  • Antimicrobial Materials
  • Enzymatic Chemistry

Background:

  • The neutrophil respiratory burst generates hypochlorite to kill pathogens.
  • Synthetic antimicrobial strategies can mimic natural enzymatic processes.
  • Developing effective, broad-spectrum antimicrobial agents is a critical need.

Purpose of the Study:

  • To develop novel synthetic antimicrobial materials based on myeloperoxidase chemistry.
  • To create electrospun fibers incorporating glucose oxidase (GOX) and horseradish peroxidase (HRP) for halogen generation.
  • To evaluate the biocidal efficacy, reusability, and application potential of these novel materials.

Main Methods:

  • Tandem enzymatic reactions using glucose oxidase (GOX) and horseradish peroxidase (HRP) with glucose and sodium halide to produce halogens (iodine or bromine).
  • Electrospinning of medical-grade polyurethane (ChronoFlex AR) with GOX and HRP to form flexible, water-insoluble fibers.
  • Assessment of biocidal activity against *Escherichia coli* and *Staphylococcus aureus* using time-course and dose-response studies.

Main Results:

  • Electrospun ChronoFlex AR/GOX/HRP fibers demonstrated potent antimicrobial activity, achieving >6-log reduction of *E. coli* and *S. aureus*.
  • Rapid biocidal action was observed, with a 3-4 log reduction within 5 minutes and complete kill within 15 minutes.
  • The antimicrobial fibers were reusable with sustained activity after multiple uses and prolonged soaking, and effective when integrated into a thin film.

Conclusions:

  • Synthetic antimicrobial fibers based on GOX/HRP mimic natural halogen-generating systems for effective pathogen killing.
  • The developed electrospun materials offer rapid, potent, and reusable biocidal properties against common bacteria.
  • These materials show promise for various antimicrobial applications, including wound dressings and medical device coatings.