Cornell Kenneth A, Benfield Kate, Berntsen Tiffany, Clingerman Jenna, Croteau Adam, Goering Spencer, Moyer Daniel, Provost Mariah, White Amanda, Plumlee Don, Oxford Julia T, Browning Jim
Department of Chemistry and Biochemistry, Boise State University, Boise, ID USA.
Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID USA.
Int J Latest Trends Eng Technol. 2020 Jan;15(3):036-41.
A cold atmospheric pressure plasma device was developed using two parallel plates of Low Temperature Co-fired Ceramic with embedded electrodes. The 2.4 cm wide by 1 mm deep plasma discharge operates at 20 kHz with a 2-5 kV AC drive signal across a 0.25 mm gap. Mixed Argon/oxygen plasmas were directed between the plates to flow toward a bacterial biofilm sample for treatment. Results showed that at 4-5 kV the plasma etched away a bacterial biofilm on glass in 10 minutes. In addition, we showed that short plasma treatments rapidly killed biofilm resident bacteria with ED values of <15 s.
一种冷大气压等离子体装置是利用两块嵌入电极的低温共烧陶瓷平行板研制而成。宽2.4厘米、深1毫米的等离子体放电以20千赫兹运行，在0.25毫米的间隙上施加2 - 5千伏的交流驱动信号。混合氩/氧等离子体在极板之间定向流动，流向细菌生物膜样本进行处理。结果表明，在4 - 5千伏时，等离子体在10分钟内蚀刻掉了玻璃上的细菌生物膜。此外，我们还表明，短时间的等离子体处理能迅速杀死生物膜中的细菌，等效致死剂量值小于15秒。
