Effects of flow-induced electromagnetic field and surface roughness on antifouling activity of phenolic compounds.

Biofouling · 2024 · Benefit · Insufficient evidence

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BenefitInsufficient evidencePaper 5850

Study snapshot

PublicationBiofouling · 2024

Study typeother

Reported directionBenefit

Evidence ratingInsufficient

Abstract

Microbial fouling involves the physicochemical interactions between microorganisms and solid surfaces. An electromagnetic field (EMF) may change the diffusion rates of microbial cells and the electrical double layer around the cells and contacting surfaces. In the current study, polycardanol exhibiting antibiofouling activity was modified with ferromagnetic iron oxide (IO) to investigate the EMF effects on bacterial adhesion. When there was a flow of electrolyte that contained bacterial cells, flow-induced EMF was generated according to Faraday's principle. It was observed that the IO-ionic solution (IS)-modified surfaces, with an induced current of 44, 53, 66 nA, showed decreases in the adhesion of bacteria cells more than the unmodified (polycardanol) and IO-nanoparticles-modified ones. In addition to the EMF effects, the nano-scale uniform roughness of the modified surfaces appeared to play an important role in the reduction of cell adhesion. The results demonstrated that the IOIS-modified surface (3.2 × 10mM IO) had the highest antibiofouling activity.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionbenefit

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 72% · Peer reviewed: yes

Main findings

In a flow system generating a flow-induced EMF, IO-ionic solution-modified polycardanol surfaces associated with induced currents of 44, 53, and 66 nA showed decreased bacterial cell adhesion compared with unmodified polycardanol and IO-nanoparticle-modified surfaces. The IOIS-modified surface (3.2 × 10 mM IO) had the highest antibiofouling activity, and nano-scale uniform roughness was also reported to contribute to reduced adhesion.

Outcomes measured

bacterial cell adhesion
antibiofouling/antifouling activity
surface roughness (nano-scale uniform roughness)

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": "flow-induced electromagnetic field (electrolyte flow)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "bacterial cell adhesion",
    "antibiofouling/antifouling activity",
    "surface roughness (nano-scale uniform roughness)"
  ],
  "main_findings": "In a flow system generating a flow-induced EMF, IO-ionic solution-modified polycardanol surfaces associated with induced currents of 44, 53, and 66 nA showed decreased bacterial cell adhesion compared with unmodified polycardanol and IO-nanoparticle-modified surfaces. The IOIS-modified surface (3.2 × 10 mM IO) had the highest antibiofouling activity, and nano-scale uniform roughness was also reported to contribute to reduced adhesion.",
  "effect_direction": "benefit",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.72,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic field",
    "flow-induced EMF",
    "Faraday principle",
    "biofouling",
    "antifouling",
    "bacterial adhesion",
    "polycardanol",
    "iron oxide",
    "surface roughness"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1080/08927014.2024.2373859
PubMed: 38991845

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