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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...
Microbial Biosensors01:17

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

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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Related Experiment Video

Updated: May 16, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
11:52

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

Relating nanomaterial properties and microbial toxicity.

Anil K Suresh1, Dale A Pelletier, Mitchel J Doktycz

  • 1Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA. asuresh@coh.org

Nanoscale
|December 4, 2012
PubMed
Summary
This summary is machine-generated.

Engineered metal and metal oxide nanoparticles (NPs) pose environmental risks to microbial systems. NP properties like size, shape, and surface coatings influence toxicity, necessitating further research for environmental safety assessments.

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Area of Science:

  • Environmental Science
  • Nanotechnology
  • Microbiology

Background:

  • Metal and metal oxide nanoparticles (NPs) are widely used, raising concerns about their environmental impact.
  • Microbial communities are vital for environmental processes, making NP toxicity to microbes a significant worry.
  • Assessing NP toxicity is complex due to diverse NP types, sizes, shapes, coatings, and microbial tolerances.

Purpose of the Study:

  • To review studies on nanoparticle-microbial interactions.
  • To correlate physical-chemical properties of engineered NPs with their biological responses.
  • To identify key areas for future research on NP environmental fate and toxicity.

Main Methods:

  • Literature review of nanoparticle-microbial interaction studies.
  • Analysis of correlations between NP properties (material, size, shape, coating) and toxicity.
  • Examination of factors influencing NP transformations and microbial community responses.

Main Results:

  • General conclusions on NP parent material, size, and shape effects on toxicity are possible.
  • Surface coatings significantly influence NP toxicity, with environmental conditions altering these effects.
  • Microbial diversity and community structure complicate toxicity extrapolations.

Conclusions:

  • Understanding NP transformations and designing surfaces to control toxicity are crucial research areas.
  • Interactions between NPs and diverse microbial communities require further investigation.
  • Linking NP properties to molecular, cellular, and community-level responses is essential for environmental risk assessment.