Freezing preservation of the plasma treated water for disinfection treatment in dental and surgical therapies based on the reduced pH method
Freezing preservation of the plasma treated water for disinfection treatment in dental and surgical therapies based on the reduced pH method
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发表时间：
2013
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通讯作者：
K. Kitano;S. Ikawa;A. Tani;Y. Nakashima;Hiromitsu Yamazaki;T. Ohshima;Kazuhiro Kaneko;Masaaki Ito;Takeshi Kuwata;Atsushi Yagishita
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作者：
K. Kitano;S. Ikawa;A. Tani;Y. Nakashima;Hiromitsu Yamazaki;T. Ohshima;Kazuhiro Kaneko;Masaaki Ito;Takeshi Kuwata;Atsushi Yagishita
已经证明，大气等离子体可以用于涉及液体的非常规等离子体处理。为了在牙科和外科治疗中对人体进行消毒，用低温常压等离子体进行了溶液灭菌实验。对于体液中的血浆消毒，我们成功地开发了降低pH值的方法，当溶液足够酸性时，可以达到很强的杀菌活性。此外，等离子体处理水(PTW)已被发现在室温下几分钟具有很强的杀菌活性。它的半衰期取决于温度，温度越低，寿命越长。通过冷冻PTW，可以将杀菌活性保存至少一个月。我们认为，解冻PTW消毒是一种新的血浆消毒方法。这种类型的间接等离子体暴露将带来安全的等离子体消毒，因为选定的活性物种的供应是可能的。
It has been demonstrated that atmospheric plasmajets can be used for non-conventional plasma processing that involves liquids. For the purpose of disinfecting human bodies in dental and surgical therapies, sterilization experiments in solution have been conducted with low-temperature atmospheric-pressure plasmas. For the plasma disinfection in the body fluid, we have successfully developed the reduced pH method that strong bactericidal activity can be achieved when the solution is sufficiently acidic. In addition, the plasma treated water (PTW) has been found to have strong bactericidal activity for a few minutes at room temperature. Its half lifetime depends on temperature and lower temperature brings longer lifetime. By freezing PTW, it is possible to preserve bactericidal activity for a month at least. We think that the disinfection by unfreezing PTW is a novel method of plasma disinfection. This type of indirect plasma exposure would bring safety plasma disinfection, because the selected supply of active species is possible.