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Related Concept Videos

Microbial Corrosion01:24

Microbial Corrosion

Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
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The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
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Nanomaterial-based sensors for microbe detection: a review.

Muhammad Qamar Khan1, Jahangir Khan2, Muhammad Abbas Haider Alvi2

  • 1Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad, 37610, Punjab, Pakistan. drqamar@ntu.edu.pk.

Discover Nano
|July 30, 2024
PubMed
Summary

This review explores nanomaterial-based colorimetric biosensors for rapid, on-site detection of airborne microbes. A novel PDMS microfluidic sensor offers real-time, visual results for improved health monitoring.

Keywords:
BiosensorColorimetric phenomenonMicrobes sensorNanofibers

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Area of Science:

  • Environmental microbiology
  • Nanotechnology
  • Biosensor development

Background:

  • Airborne microorganisms present significant health risks, necessitating efficient detection methods.
  • Conventional microbial detection techniques are often time-consuming and require specialized laboratory equipment.
  • Rapid and on-site detection is crucial for timely intervention and public health safety.

Purpose of the Study:

  • To review the advancements in nanomaterial-based biosensors for airborne microbial detection.
  • To highlight the advantages of colorimetric sensors for real-time, visual microbial identification.
  • To propose a novel polydimethylsiloxane (PDMS)-based colorimetric biosensor for airborne microbe monitoring.

Main Methods:

  • Literature review of nanomaterial-based biosensors and colorimetric detection strategies.
  • Exploration of Lab-on-a-Chip (LOC) integration with microfluidics, specifically using PDMS.
  • Conceptual design and description of a novel PDMS microfluidic colorimetric biosensor.

Main Results:

  • Nanomaterial-based colorimetric sensors show promise for rapid, on-site airborne microbe detection.
  • Integration with PDMS microfluidics enhances sensor performance and portability.
  • The proposed sensor design enables naked-eye visual detection through color change.

Conclusions:

  • Colorimetric biosensors offer a simplified approach to airborne microbial analysis.
  • PDMS microfluidic technology facilitates the development of portable and user-friendly detection devices.
  • The novel sensor design has the potential for point-of-care applications in public health surveillance.