ArticleApplied and environmental microbiology2014
Thermal and nonthermal effects of discontinuous microwave exposure (2.45 gigahertz) on the cell membrane of Escherichia coli.
Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Hollow-core polydopamine nanocarriers for ultrasound-enhanced drug delivery.Nanoscale horizons · 2026Article
- Direct measurement of non-thermal microwave effects on bacterial growth and redox dynamics using a novel high-throughput waveguide applicator.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2025Article
- Uptake of substances into living mammalian cells by microwave induced perturbation of the plasma membrane.Scientific reports · 2024Article
- Microwave-enhanced antibacterial activity of polydopamine-silver hybrid nanoparticles.RSC advances · 2024Article
- Enhancing Microwave Disinfection: Impact of Sodium Chloride on Microbial Inactivation.IEEE access : practical innovations, open solutions · 2024Article
- Use of Microwave Maceration in Red Winemaking: Effect on Fermentation and Chemical Composition of Red Wines.Molecules (Basel, Switzerland) · 2022Article
- Microwaves, a potential treatment for bacteria: A review.Frontiers in microbiology · 2022Review
- Evaluation of non-thermal effect of microwave radiation and its mode of action in bacterial cell inactivation.Scientific reports · 2021Article
- Effect of Microwave Maceration and SOFoods (Basel, Switzerland) · 2021Article
- Applications of Microwave Energy in Medicine.Biosensors · 2021Review
- Effect of microwave sterilization on maturation time and quality of low-salt sufu.Food science & nutrition · 2020Article
- Bioluminescence of Vibrio fischeri: bacteria respond quickly and sensitively to pulsed microwave electric (but not magnetic) fields.Journal of biomedical optics · 2019Article
- The response of human bacteria to static magnetic field and radiofrequency electromagnetic field.Journal of microbiology (Seoul, Korea) · 2017Article
- Study on dose-dependent, frequency-dependent, and accumulative effects of 1.5 GHz and 2.856 GHz microwave on cognitive functions in Wistar rats.Scientific reports · 2017Article
- Scrutinizing microwave effects on glucose uptake in yeast cells.European biophysics journal : EBJ · 2017Article
- Molecular Mechanisms Contributing to the Growth and Physiology of an Extremophile Cultured with Dielectric Heating.Applied and environmental microbiology · 2016Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to investigate the effects on the cell membranes of Escherichia coli of 2.45-GHz microwave (MW) treatment under various conditions with an average temperature of the cell suspension maintained at 37°C in order to examine the possible thermal versus nonthermal effects of short-duration MW exposure. To this purpose, microwave irradiation of bacteria was performed under carefully defined and controlled parameters, resulting in a discontinuous MW exposure in order to maintain the average temperature of the bacterial cell suspensions at 37°C. Escherichia coli cells were exposed to 200- to 2,000-W discontinuous microwave (DW) treatments for different periods of time. For each experiment, conventional heating (CH) in a water bath at 37°C was performed as a control. The effects of DW exposure on cell membranes was investigated using flow cytometry (FCM), after propidium iodide (PI) staining of cells, in addition to the assessment of intracellular protein release in bacterial suspensions. No effect was detected when bacteria were exposed to conventional heating or 200 W, whereas cell membrane integrity was slightly altered when cell suspensions were subjected to powers ranging from 400 to 2,000 W. Thermal characterization suggested that the temperature reached by the microwave-exposed samples for the contact time studied was not high enough to explain the measured modifications of cell membrane integrity. Because the results indicated that the cell response is power dependent, the hypothesis of a specific electromagnetic threshold effect, probably related to the temperature increase, can be advanced.
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