Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 114 studies (Microorganisms)
E. Gilles · 1944
This 1944 research investigated whether ultrashort radio waves could kill fungi and bacteria through thermal (heating) effects. The study found that these electromagnetic waves could destroy microorganisms, but only when they generated enough heat under specific conditions.
Hugh Fleming · 1944
This 1944 study by Fleming examined how high-frequency electromagnetic fields affect microorganisms like bacteria. The research investigated biological effects of RF fields on microbes, likely in connection with medical diathermy treatments. This represents early scientific inquiry into how electromagnetic energy interacts with living organisms at the cellular level.
Wilhelm Krasny-Ergen · 1936
This 1936 study by W. Krasny-Ergen examined how alternating electrical fields affect colloids (tiny particles suspended in liquid) through non-thermal mechanisms. The research focused on biological effects that occur without heating, specifically studying how electrical vibrations and induction powers influence microorganisms. This represents early scientific recognition that electromagnetic fields can produce biological effects beyond simple heating.
Conrad K. Gale · 1935
This 1935 research investigated how short and ultrashort radio waves penetrate and selectively heat biological tissues, using paramecia (single-celled organisms) as test subjects. The study examined how different wavelengths affect living cells and electrolyte solutions differently. This early work helped establish fundamental principles about how electromagnetic fields interact with biological systems.
Liebesny, P. · 1934
This 1934 conference paper by P. Liebesny examined the biological effects of Hertzian shortwaves (radio frequency radiation) on microorganisms. The research focused on both thermal and non-thermal effects of shortwave electromagnetic fields on microscopic life forms. This represents some of the earliest documented scientific investigation into how radio frequency energy affects living biological systems.
Dr. W. Haase, Dr. E. Schliephake · 1931
This 1931 German research by W. Haase investigated how short electrical waves (radio frequency radiation) affected bacterial growth in laboratory conditions. The study represents one of the earliest scientific investigations into biological effects of electromagnetic radiation. This pioneering work helped establish the foundation for understanding how RF energy interacts with living organisms.
Dr. W. Haase, Priv.-Doz. Dr. E. Schliephake · 1931
This 1931 German study by Dr. Haase and Dr. Schliephake investigated how short-wave radio frequency radiation affects bacterial growth. The research examined biological effects of electromagnetic waves on microorganisms, representing some of the earliest scientific inquiry into EMF impacts on living systems. This work helped establish the foundation for understanding how wireless signals interact with biological processes.
Unknown authors
Researchers exposed Salmonella bacteria to 2.45 GHz microwave radiation at varying power levels to test for genetic damage (mutagenicity). The study was motivated by concerns about potential low-level radiation exposure from proposed Solar Power Satellite systems. Results showed mixed findings, with no clear mutagenic effects demonstrated at the tested exposure levels.
Unknown authors
Researchers exposed bacteria carrying dormant lambda phage viruses to millimeter-wave radiation to test whether EMF could trigger viral activation. The study found that millimeter-wave exposure failed to induce the lambda phage to become active in E. coli bacteria. This research examines whether EMF radiation can disrupt normal biological processes at the cellular level.
Unknown authors
Researchers exposed E. coli bacteria to millimeter wave radiation in the 51.3-52.3 GHz frequency range (similar to some 5G frequencies) at low power levels. The study examined whether this exposure could trigger colicin production, a stress response in bacteria that indicates cellular damage. The research demonstrates that even low-power millimeter wave radiation can cause biological effects in living cells.
Unknown authors
Researchers exposed E. coli bacteria to millimeter wave radiation at frequencies of 51.3-52.3 GHz (similar to some 5G frequencies) at low power levels. The study examined whether this exposure could trigger colicin production, a natural bacterial defense mechanism. The findings suggest that even low-level millimeter wave radiation can influence bacterial cellular processes.
Unknown authors
Researchers exposed E. coli bacteria to 1.07 GHz radiofrequency fields and found the radiation made bacteria vulnerable to viral infection and easier to kill than heat alone. The study also showed that bacteriophage viruses were rapidly inactivated by RF fields that barely affected the bacteria, with 80% of viruses destroyed in just 2 minutes.
Tomberg, V.
This early research by Tomberg examined how short electrical waves (under 8 meters wavelength) affect microorganisms, distinguishing between electromagnetic and electric field effects. The study found that biological effects depend on the conductivity and structure of the organism, with 'quasi-specific' thermal effects being most therapeutically relevant. The research challenged claims that certain frequencies promote microbial growth.
Unknown authors
Researchers exposed bacteria to extremely strong magnetic fields (0.1 to 1.1 Tesla) and found slight increases in genetic mutations in some bacterial strains. The strongest evidence came from Salmonella TA100 bacteria, which showed statistically significant increases in DNA mutations after magnetic field exposure.