Fundamental study on a gene transfection methodology for mammalian cells using water-in-oil droplet deformation in a DC electric field.

Biochemistry and biophysics reports · 2016 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 2848

Study snapshot

PublicationBiochemistry and biophysics reports · 2016

Study typein_vitro

Reported directionUnclear

Evidence ratingInsufficient

Abstract

We have developed a gene transfection method called water-in-oil droplet electroporation (EP) that uses a dielectric oil and a liquid droplet containing live cells and exogenous DNA. When a cell suspension droplet is placed between a pair of electrodes, an intense DC electric field can induce droplet deformation, resulting in an instantaneous short circuit caused by the droplet elongating and contacting the two electrodes simultaneously. Small transient pores are generated in the cell membrane during the short, allowing the introduction of exogenous DNA into the cells. The droplet EP was characterized by varying the following experimental parameters: applied voltage, number of short circuits, type of medium (electric conductivity), concentration of exogenous DNA, and size of the droplet. In addition, the formation of transient pores in the cell membrane during droplet EP and the transfection efficiency were evaluated.

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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 typein_vitro

Effect directionunclear

PopulationMammalian cells (in vitro)

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

A water-in-oil droplet electroporation method is described in which an intense DC electric field deforms a cell-containing droplet, producing an instantaneous short circuit that generates transient membrane pores and enables introduction of exogenous DNA. The method was characterized by varying applied voltage, number of short circuits, medium conductivity, DNA concentration, and droplet size, and evaluating pore formation and transfection efficiency.

Outcomes measured

Transient pore formation in cell membrane
Gene transfection efficiency
Droplet deformation/short-circuit behavior under DC electric field

Limitations

No quantitative results or effect sizes are provided in the abstract.
No exposure metrics beyond qualitative description of an 'intense DC electric field' are reported (e.g., field strength, duration).
Sample size and specific cell types are not stated in the abstract.

View raw extracted JSON

{
  "study_type": "in_vitro",
  "exposure": {
    "band": null,
    "source": "DC electric field (electroporation between electrodes)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Mammalian cells (in vitro)",
  "sample_size": null,
  "outcomes": [
    "Transient pore formation in cell membrane",
    "Gene transfection efficiency",
    "Droplet deformation/short-circuit behavior under DC electric field"
  ],
  "main_findings": "A water-in-oil droplet electroporation method is described in which an intense DC electric field deforms a cell-containing droplet, producing an instantaneous short circuit that generates transient membrane pores and enables introduction of exogenous DNA. The method was characterized by varying applied voltage, number of short circuits, medium conductivity, DNA concentration, and droplet size, and evaluating pore formation and transfection efficiency.",
  "effect_direction": "unclear",
  "limitations": [
    "No quantitative results or effect sizes are provided in the abstract.",
    "No exposure metrics beyond qualitative description of an 'intense DC electric field' are reported (e.g., field strength, duration).",
    "Sample size and specific cell types are not stated in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electroporation",
    "DC electric field",
    "water-in-oil droplet",
    "gene transfection",
    "mammalian cells",
    "membrane pores",
    "droplet deformation"
  ],
  "suggested_hubs": [
    {
      "slug": "engineering",
      "weight": 0.7,
      "reason": "Describes an electroporation-based gene transfection methodology using DC electric fields and droplet deformation."
    }
  ]
}

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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: 10.1016/j.bbrep.2016.08.001
PubMed: 28955944

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