Capillary-tube-based micro-plasma system for disinfecting dental biofilm
WK Huang, CC Weng, JD Liao, YC Wang… - … Journal of Radiation …, 2013 - Taylor & Francis
WK Huang, CC Weng, JD Liao, YC Wang, SF Chuang
International Journal of Radiation Biology, 2013•Taylor & FrancisPurpose: A low-temperature low-energy capillary-tube-based argon micro-plasma system
was applied to disinfect Streptococcus mutans-containing biofilm. Materials and methods:
The micro-plasma system uses a hollow inner electrode that is ignited by a radio-frequency
power supply with a matching network. The energy content was analyzed using optical
emission spectroscopy. The micro-plasma-induced effect on a biofilm cultured for 24 or 48 h
with a working distance of≈ 3 mm at low temperature was evaluated. The morphologies of …
was applied to disinfect Streptococcus mutans-containing biofilm. Materials and methods:
The micro-plasma system uses a hollow inner electrode that is ignited by a radio-frequency
power supply with a matching network. The energy content was analyzed using optical
emission spectroscopy. The micro-plasma-induced effect on a biofilm cultured for 24 or 48 h
with a working distance of≈ 3 mm at low temperature was evaluated. The morphologies of …
Abstract
Purpose: A low-temperature low-energy capillary-tube-based argon micro-plasma system was applied to disinfect Streptococcus mutans-containing biofilm.
Materials and methods: The micro-plasma system uses a hollow inner electrode that is ignited by a radio-frequency power supply with a matching network. The energy content was analyzed using optical emission spectroscopy. The micro-plasma-induced effect on a biofilm cultured for 24 or 48 h with a working distance of ≈3 mm at low temperature was evaluated. The morphologies of the treated live/dead bacteria and the produced polysaccharides after micro-plasma treatment were examined.
Results: Scanning electron microscopy images and staining results show that most of the S. mutans on the treated biofilm were acutely damaged within a micro-plasma treatment time of 300 s.
Conclusions: The number of living bacteria underneath the treated biofilm greatly decreased with treatment time. The proposed micro-plasma system can thus disinfect S. mutans on/in biofilms.
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