New Legionella Control Options by UV and Violet LEDs for Hospitals and Care Facilities

  title={New Legionella Control Options by UV and Violet LEDs for Hospitals and Care Facilities},
  author={Martin Hessling and Julian Schmid and Katharina Hoenes and Petra Vatter},
Legionella infections caused by contaminated water are a widespread problem worldwide. Discharge lamps like mercury vapor lamps are widely known for the disinfection properties of their radiation, but they suffer technical disadvantages, like high voltages and toxic content, and are, therefore, not suitable for some infection control applications. New high-intensity ultraviolet (UV) and violet LEDs offer new approaches for Legionella control, because these bacteria are significantly light… 
1 Citations

Figures from this paper


UV-C inactivation of Legionella rubrilucens
The idea of a future point-of-use disinfection by small UV-C LEDs in water-taps or shower heads appears to be realistic, even if legionellae are more resistant in amoebae.
Photoinactivation of Legionella Rubrilucens by Visible Light
In this study, the photoinactivation of Legionella by visible light is investigated and results were obtained for extracellular L. rubrilucens, but other Legionella species may exhibit a similar behavior.
Photoinactivation of bacteria by endogenous photosensitizers and exposure to visible light of different wavelengths – a review on existing data
This review compiles the published data on bacterial inactivation caused by visible light and endogenous photosensitizers and evaluates more than 50 published studies containing information on about 40 different bacterial species irradiated within the spectral range from 380 to 780 nm.
Ambulant erworbene Legionellenpneumonie
  • H. Baum, C. Lück
  • Medicine
    Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz
  • 2011
Patients with severe underlying diseases, patients receiving immunosuppression, and patients who are heavy smokers have a predisposition to Legionnaire’s disease.
Classification of the Legionnaires' disease bacterium: Legionella pneumophila, genus novum, species nova, of the family Legionellaceae, familia nova.
DNA comparisons showed that all strains of the Legionnaires' disease bacterium were members of the same species, and it is proposed that the LD bacterium be named Legionella pneumophila species nova, the type species of Legionella, genus novum.
Light extraction enhancement of 265 nm deep-ultraviolet light-emitting diodes with over 90 mW output power via an AlN hybrid nanostructure
Deep-ultraviolet (DUV) aluminum gallium nitride-based light-emitting diodes (LEDs) on transparent aluminum nitride (AlN) substrates with high light extraction efficiency and high power are proposed
UV dose required to achieve incremental Log inactivation of bacteria, protozoa and viruses
  • IUVA News
  • 2006
Stérilisation de grandes quantités d’eau par les rayons ultraviolets
  • Compt Rend Acad Sci
  • 1910