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Related Concept Videos

Surface Membrane Barriers01:18

Surface Membrane Barriers

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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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Chemical Agents for Microbial Control01:27

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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...
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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...
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Waterproofing and Anti-Bacterial Admixtures in Concrete01:22

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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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Hand hygiene01:23

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Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
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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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Functional-modified polyurethanes for rendering surfaces antimicrobial: An overview.

Chunhua Wang1, Changdao Mu2, Wei Lin3

  • 1Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.

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Summary
This summary is machine-generated.

This review explores antimicrobial polyurethane (PU) coatings and surfaces, detailing synthesis methods and mechanisms for combating microbial infections and biofouling. It highlights challenges and opportunities for developing advanced antimicrobial PU materials.

Keywords:
Anti-biofoulingAntimicrobial surfaces and coatingBactericidalSynthetic pathways

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Area of Science:

  • Materials Science
  • Biotechnology
  • Surface Chemistry

Background:

  • Antimicrobial surfaces are crucial for preventing biofouling and microbial infections.
  • Polyurethane (PU) is a versatile coating material widely used across various applications.
  • Developing effective antimicrobial PU materials is essential for public health and industrial needs.

Purpose of the Study:

  • To review recent advancements in antimicrobial polyurethane coatings and surfaces.
  • To systematically present synthesis pathways based on antimicrobial components and mechanisms.
  • To discuss current challenges and future opportunities in the field of antimicrobial PU.

Main Methods:

  • Literature review of recent research on antimicrobial polyurethane.
  • Systematic classification of antimicrobial components and their mechanisms.
  • Analysis of synthesis strategies for imparting antimicrobial properties to PU.

Main Results:

  • Overview of diverse antimicrobial agents and their integration into PU.
  • Detailed presentation of various synthesis routes for antimicrobial PU.
  • Identification of key challenges, including durability and broad-spectrum efficacy.

Conclusions:

  • Antimicrobial PU coatings offer significant potential in preventing microbial contamination.
  • Further research is needed to overcome challenges related to long-term efficacy and environmental impact.
  • This review provides a comprehensive guide for developing next-generation antimicrobial PU materials.