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Related Concept Videos

Personal Protective Equipment01:20

Personal Protective Equipment

1.7K
Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
1.7K
Chemical Agents for Microbial Control01:27

Chemical Agents for Microbial Control

175
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...
175
Hand hygiene01:23

Hand hygiene

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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.
Hand washing...
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Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.1K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.1K
Methods of Sterilization II: Chemical Methods01:30

Methods of Sterilization II: Chemical Methods

6.8K
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
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Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

194
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
194

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Updated: Aug 25, 2025

Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment
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Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment

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Polymer Additives to Personal Protective Equipment can Inactivate Pathogens.

Alan B Dogan1, Katherine E Dabkowski2, Jennifer L Cadnum3

  • 1Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA. abd51@case.edu.

Annals of Biomedical Engineering
|October 15, 2022
PubMed
Summary
This summary is machine-generated.

New "contact-killing" face masks integrate a novel polymer to inactivate pathogens on surfaces. This reusable, sustainable solution offers enhanced protection against airborne diseases compared to disposable masks.

Keywords:
Aerosolized bacteriaBacterial contact-killingFree radical polymerizationPersonal protective equipmentQuaternary ammonium polymers

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Area of Science:

  • Materials Science
  • Public Health
  • Infectious Disease Prevention

Background:

  • Face masks are crucial for preventing airborne pathogen transmission.
  • Low-quality or disposable masks offer insufficient protection during continuous exposure and pose sustainability challenges.
  • There is a need for reusable, pathogen-inactivating face masks.

Purpose of the Study:

  • To develop a reusable face mask with pathogen-inactivating properties.
  • To integrate quaternary poly(dimethylaminohexadecyl methacrylate) (q(PDM)) into common fabrics.
  • To create "contact-killing" face masks from cotton, polypropylene, and polyester.

Main Methods:

  • Integrating q(PDM) into fabric networks.
  • Testing the efficacy of q(PDM)-integrated masks against bacteria in liquid culture and aerosolized droplets.
  • Electrospinning q(PDM) into homogeneous polymer fibers for scalable production.

Main Results:

  • q(PDM)-integrated face masks effectively inactivated both Gram-positive and Gram-negative bacteria.
  • The polymer demonstrated efficacy in both liquid culture and aerosolized droplet environments.
  • Electrospinning enabled practical, low-cost, scaled-up production of the q(PDM) polymer.

Conclusions:

  • q(PDM) integration transforms common fabrics into pathogen-resistant materials.
  • These "contact-killing" face masks offer a sustainable and effective alternative to disposable masks.
  • The developed technology holds promise for enhanced public health protection against airborne pathogens.