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An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils

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Nonleaching antimicrobial films prepared from surface-modified microfibrillated cellulose.

Martin Andresen¹, Per Stenstad, Trond Møretrø

¹Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, Norway. martinan@chemeng.ntnu.no

Biomacromolecules

|June 5, 2007

Summary

Researchers developed durable antimicrobial films using surface-modified microfibrillated cellulose (MFC). These nonleaching films effectively inhibit bacterial growth, offering a promising solution for antimicrobial applications.

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Area of Science:

Materials Science
Biotechnology
Surface Chemistry

Background:

Microfibrillated cellulose (MFC) is a renewable biomaterial with potential for advanced applications.
Developing effective and durable antimicrobial surfaces is crucial for preventing infections.

Purpose of the Study:

To create permanent antimicrobial films by modifying microfibrillated cellulose (MFC).
To evaluate the antibacterial efficacy and leaching properties of the modified films.

Main Methods:

Surface modification of MFC with octadecyldimethyl(3-trimethoxysilylpropyl)ammonium chloride (ODDMAC).
Characterization using Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS).
Antibacterial testing against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa.

Main Results:

ODDMAC-grafted MFC films exhibited significant antibacterial activity.
Effective antimicrobial properties were observed even at low concentrations of the immobilized agent.
Zone of inhibition tests confirmed the nonleaching nature of the ODDMAC-modified films.

Conclusions:

Surface-modified MFC with ODDMAC provides a stable and effective antimicrobial film.
The nonleaching characteristic ensures prolonged antimicrobial action and safety.
These films represent a promising platform for developing durable antimicrobial materials.