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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Rechargeable antimicrobial surface modification of polyethylene.

J M Goddard¹, J H Hotchkiss

¹Department of Food Science, Cornell University, Stocking Hall, Ithaca, New York 14853, USA.

Journal of Food Protection

|October 23, 2008

Summary

This summary is machine-generated.

Researchers developed rechargeable antimicrobial polyethylene films. These modified films effectively kill foodborne pathogens after multiple sanitizing cycles using sodium hypochlorite, enhancing food safety.

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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

Published on: August 4, 2018

Area of Science:

Materials Science
Food Science
Microbiology

Background:

Antimicrobial surfaces are crucial for food safety.
N-halamine compounds offer potent antimicrobial properties.
Rechargeable antimicrobial surfaces are needed to overcome limitations of traditional materials.

Purpose of the Study:

To create and evaluate rechargeable antimicrobial polyethylene films.
To assess the films' ability to retain and release chlorine after sanitization.
To determine the efficacy of these films against common foodborne pathogens.

Main Methods:

Surface modification of polyethylene films to incorporate amine and amide groups.
Functionalization with N-halamine structures.
Testing chlorine retention and release after sodium hypochlorite treatment.
Evaluating antimicrobial activity against Escherichia coli, Pseudomonas fluorescens, Bacillus cereus, and Listeria monocytogenes.

Main Results:

Polyethylene films demonstrated successful chlorine rechargeability, maintaining N-halamine structures over six cycles.
Achieved a 4-log reduction in all tested microorganisms.
Maintained over a 3-log reduction for four successive uses.
Showed antimicrobial activity in aqueous suspensions and diluted broth, indicating efficacy in the presence of organic matter.

Conclusions:

Modified polyethylene films provide rechargeable antimicrobial activity.
These films have potential as a supplementary tool in food processing sanitation.
They can help reduce pathogen adhesion, growth, and cross-contamination, improving overall food safety.