PMID: 9542758Jun 6, 1998Paper

The antimicrobial effect of narrow-band UVB (313 nm) and UVA1 (345-440 nm) radiation in vitro

Photodermatology, Photoimmunology & Photomedicine
J W Fluhr, M Gloor

Abstract

Two new UV lamps were investigated with respect to their antibacterial effectiveness in vitro. Propioni (n = 20 strains) and Micrococcaceae (n = 16 strains) bacteria extracted from acne patients were applied to RCM and sheep blood agar plates and irradiated with a narrow-band UVB lamp (TL 100W/10R) at a wavelength of 313 nm and a UVA1 lamp (TL 01) at a wavelength of 345-440 nm. The precisely defined energy levels were, in the case of narrow-band UVB, 0.00, 0.30, 0.50, 1.00, 2.00 and 3.00 J/cm2 and, in the case of UVA1, 0.00, 2.50, 5.00, 7.50, 10.00 and 20.00 J/cm2. UVA1 inhibited neither the growth of Propioni nor Micrococcaceae bacteria. In contrast, the growth of Micrococcaceae was inhibited already at a dosage of 0.30 J/cm2 of narrow-band UVB (P < 0.05), highly significant from 0.50 J/cm2 (P < 0.01) and to a maximum of 2.2 powers of 10 at 3.00 J/cm2 compared with non-radiated control plates. Propioni bacteria were significantly inhibited at the minimum dosage of 0.30 J/cm2 of narrow-band UVB (P < 0.01) and to a maximum of 2.8 powers of 10 at 3.00 J/cm2.

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Citations

Oct 19, 2011·Journal of the American Academy of Dermatology·Moon-Bum KimHyun-Chang Ko
Feb 26, 2011·Journal of the European Academy of Dermatology and Venereology : JEADV·J H SimY C Kim
Jun 30, 2010·Photodermatology, Photoimmunology & Photomedicine·Yung-Chien KwahBoon-Kee Goh
May 24, 2016·Indian Journal of Dermatology, Venereology and Leprology·Steven T G ThngVirlynn W D Tan
Aug 26, 2004·The British Journal of Dermatology·S H IbbotsonUNKNOWN British Association of Dermatologists
Feb 20, 2007·Clinical and Experimental Dermatology·T H ClaytonV Goulden
Jul 1, 2020·Journal of the European Academy of Dermatology and Venereology : JEADV·A McDowellA M Layton
Jan 5, 2018·Der Hautarzt; Zeitschrift für Dermatologie, Venerologie, und verwandte Gebiete·K Fritz, C Salavastru
Jan 18, 2021·Zoonoses and Public Health·Jun KwonSe Chang Park

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