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Document Type

Original Article

Abstract

Nosocomial infections are caused by viruses, bacteria, and fungi that patients acquire while receiving treatment in a healthcare facility. These infections often result from cross-contamination, either through the hands of healthcare workers or contaminated medical equipment. Staphylococcus aureus is a well-known pathogen responsible for many infections, from mild skin conditions to severe sepsis or multiorgan failure. Sterilization is a process designed to eliminate or destroy all forms of microorganisms, including bacteria, fungi, and viruses, on objects or in environments, preventing them from reproducing or causing infections. This study aims to evaluate combining a static magnetic field with photodynamic inactivation to the inactivation of Staphylococcus aureus (a Gram-positive bacterium). The research utilized high-power blue LEDs and static magnetic fields generated by neodymium magnets. The highest reduction in bacterial count, 81.92% ± 7.92%, was observed with the combined treatment of static magnetic fields and LED illumination at the F8 microplate location, with an exposure time of 40 minutes. The LED energy density was 11.72 J/cm², and the static magnetic field strength was 25.61 mT. Conversely, the lowest reduction, 52.41% ± 7.64%, occurred at the exact F8 microplate location with a 10-minute exposure, an LED energy density of 2.93 J/cm², and a static magnetic field strength of 25.61 mT.

Receive Date

27/08/2024

Revise Date

23/09/2024

Accept Date

24/09/2024

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