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Related Concept Videos

Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

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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...
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Antimicrobial Proteins01:23

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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
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Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils
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Highly efficient and durable antimicrobial nanocomposite textiles.

Vinni Thekkudan Novi1, Andrew Gonzalez2, John Brockgreitens2

  • 1Department of Bioproducts and Biosystems Engineering, University of Minnesota Twin Cities, 2004 Folwell Ave, St. Paul, MN, 55108, USA.

Scientific Reports
|October 15, 2022
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Summary
This summary is machine-generated.

New antimicrobial textiles made with zinc nanocomposites offer a safe and durable solution to combat healthcare-associated infections. These innovative fabrics demonstrate significant microbial reduction and maintain effectiveness after extensive washing.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Textile Engineering

Background:

  • Healthcare-associated infections (HAIs) pose a significant global health and economic burden.
  • Antimicrobial textiles are a promising strategy to mitigate HAIs, but existing metal nanoparticle coatings face challenges like leaching, toxicity, and environmental concerns.
  • There is a critical need for safe, durable, and effective antimicrobial textiles in healthcare settings.

Purpose of the Study:

  • To develop and evaluate novel antimicrobial zinc nanocomposite textiles using an innovative in situ fabrication process.
  • To assess the antimicrobial efficacy, durability, and safety of these zinc nanocomposite textiles for healthcare applications.

Main Methods:

  • Fabrication of zinc nanocomposite textiles via a novel Crescoating process, enabling in situ growth of zinc nanoparticles within fabric structures.
  • Testing of antimicrobial activity against common Gram-positive and Gram-negative bacteria and fungal pathogens.
  • Evaluation of antimicrobial durability through 100 laundry cycles.
  • Dermatological assessment for irritation and hypoallergenic properties.

Main Results:

  • Achieved significant microbial reduction ranging from 99.99% (4 log10) to 99.9999% (6 log10) within 24 hours against major bacterial and fungal pathogens.
  • Demonstrated exceptional antimicrobial activity retention after 100 laundry cycles, highlighting superior durability.
  • Confirmed the textile's safety through independent dermatological evaluation, showing it to be non-irritating and hypoallergenic.

Conclusions:

  • The developed zinc nanocomposite textiles offer a highly effective, durable, and safe antimicrobial solution for healthcare fabrics.
  • The novel in situ fabrication method addresses limitations of traditional nanoparticle coatings, paving the way for wider adoption in healthcare.
  • These advanced textiles have the potential to significantly reduce HAIs and improve patient safety.