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We used a coaxial geometry to create novel nonthermal and high oxygen-rich helium plasmas to enhance the reactive oxygen species concentrations under low-voltage driving conditions. The optical emission spectra of the plasma showed that the oxygen flow affected the plasma properties, without generating oxygen plasmas. Spectra intensities of oxygen peaks of 777 and 845 nm created from helium plasmas...
While atmospheric pressure plasmas based on mixtures of helium and oxygen have been used for biomedical applications benefiting from reactive oxygen species (ROS)1,2, the large electron affinity and heavy mass/large size of the oxygen ions precludes stable plasma discharge at low voltage driving conditions. Here, non-thermal oxygen-rich helium plasmas were investigated to achieve enhanced reactive...
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