EFFECT OF VISIBLE RANGE ELECTROMAGNETIC RADIATIONS ON ESCHERICHIA COLI

Area of Science:

• Microbiology
• Biophysics
• Photomedicine

Background:

• Emerging antimicrobial resistance necessitates alternative treatments for *Escherichia coli* infections.
• Visible Range Radiation Therapy (VRRT), a form of energy/vibrational medicine, utilizes visible light to treat diseases.
• Investigating VRRT offers a novel approach to combatting *E. coli*.

Purpose of the Study:

• To evaluate the in vitro effects of visible spectrum electromagnetic radiation on *Escherichia coli*.
• To identify optimal visible light wavelengths for inhibiting *E. coli* growth and viability.

Main Methods:

• Six non-repetitive *E. coli* isolates from UTI patients were used.
• Bacterial cultures were exposed to six different visible light wavelengths for 18 hours.
• Optical density measurements and scanning electron microscopy (SEM) were performed.

Main Results:

• *E. coli* exhibited varied responses to different visible light wavelengths.
• 538nm (Green) visible radiation demonstrated bactericidal effects.
• 590nm (Yellow) visible radiation exhibited bacteriostatic effects.
• Orange, red, purple, and blue light showed varying degrees of enhanced bacterial growth.

Conclusions:

• 538nm (Green) and 590nm (Yellow) visible light are effective in managing *E. coli*.
• VRRT presents a potential therapeutic strategy for *E. coli*-related diseases.