Effects of 2.6-4.0 GHz microwave radiation on E-coli B.

{
  "study_type": "in_vitro",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": 20,
    "duration": "10-12 hour exposures"
  },
  "population": "E. coli B bacteria (cell cultures)",
  "sample_size": null,
  "outcomes": [
    "colony forming ability (CFA)",
    "infrared spectrum changes / molecular structure alterations"
  ],
  "main_findings": "E. coli B cultures exposed to 2.6–4.0 GHz microwave radiation at an absorbed power level of 20 mW in 1 ml suspension (SAR 20 W/kg) for 10–12 hours showed no observed effects on colony forming ability or on molecular structure as assessed by infrared spectra.",
  "effect_direction": "no_effect",
  "limitations": [
    "Sample size not reported in abstract.",
    "Only one bacterial strain (E. coli B) studied.",
    "Exposure conditions limited to SAR 20 W/kg and 10–12 hours; other intensities/durations not described."
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave radiation",
    "2.6-4.0 GHz",
    "E. coli B",
    "specific absorption rate",
    "SAR 20 W/kg",
    "colony forming ability",
    "infrared spectrum",
    "molecular structure"
  ],
  "suggested_hubs": []
}