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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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Aseptic techniques prevent contamination, ensure experimental accuracy, and protect researchers and microbial cultures. These techniques are essential in clinical, industrial, and research settings where sterility is required.Maintaining Sterility in Laboratory PracticesScientists maintain sterility by sterilizing tools with heat or chemicals, disinfecting work surfaces, and handling cultures in controlled environments. Working near an open flame or within a laminar flow hood reduces the risk...
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Author Spotlight: Development of a Smartphone-Enhanced Paper-Based Device for Rapid Dengue NS1 Detection
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COVID Key: A Multifunctional Device to Avoid Touch.

Pushkar Kamble1, Yash G Mittal1, Gopal Gote1

  • 1Indian Institute of Technology Bombay, Powai, Mumbai, 400076 India.

Transactions of the Indian National Academy of Engineering : an International Journal of Engineering and Technology
|July 15, 2022
PubMed
Summary

A novel, multifunctional handheld device called the COVID key was designed to minimize surface contact during the COVID-19 pandemic. This 3D-printed device, featuring ten functions, achieved an 85% user satisfaction rate, with ABS as the preferred material.

Keywords:
Additive ManufacturingCOVID deviceCOVID-19Contaminated SurfacesFEAOptimization

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Area of Science:

  • Engineering and Materials Science
  • Public Health and Infectious Diseases

Background:

  • The COVID-19 pandemic necessitates strategies to reduce transmission risks, including minimizing contact with high-touch surfaces in public areas.
  • Handheld tools can serve as a barrier between individuals and potentially contaminated surfaces.

Purpose of the Study:

  • To design and validate a novel, multifunctional handheld device, the "COVID key," to facilitate contactless interaction with public surfaces.
  • To assess the usability and user satisfaction of the designed device.

Main Methods:

  • A novel multifunctional handheld device was designed with ten features, including a doorknob opener, forceps, and smartphone stand.
  • Theoretical and computational analyses were performed to validate the design's structural integrity.
  • The device was 3D printed using ABS and PLA materials and subjected to functional testing.
  • User satisfaction was evaluated through surveys assessing ease of use, size, strength, appearance, material, and portability.

Main Results:

  • The COVID key design was validated through theoretical, computational, and physical testing under various loading conditions.
  • Additive manufacturing using fused deposition was employed for 3D printing in ABS and PLA.
  • The device received an 85% user satisfaction score, with ABS material being preferred over PLA.
  • Key metrics contributing to satisfaction included ease of use, strength, and material properties.

Conclusions:

  • The developed COVID key is a practical and user-accepted tool for reducing surface contact in public settings.
  • The design's multifunctionality and material choice (ABS) contribute to its effectiveness and user preference.
  • This innovation offers a tangible solution for personal protection during the COVID-19 pandemic and beyond.