The paper "Application of 233 nm far-UVC LEDs for eradication of MRSA and MSSA and risk assessment on skin models" published in 'Scientific Reports' (nature) describes the successful test of bactericidal efficacy and skin tolerance of a UVC LED irradiation system with an emission wavelength of 233 nm developed at FBH. At an irradiation dose of 40 mJ/cm2, the concentration of multi-resistant pathogens (including MRSA and MSSA) on the skin was reduced by five orders of magnitude. At the same time, the study shows that the viability of the skin models was not reduced and the DNA damage was far below 0.1 times the erythema threshold dose (0.1 MED), which can be considered safe. Moreover, the induced damage disappeared after 24 h. Irradiation for four consecutive days also did not induce DNA damage.
to the nature publication