AVS 62nd International Symposium & Exhibition
    Plasma Science and Technology Monday Sessions
       Session PS+SE-MoM

Paper PS+SE-MoM6
Recent Development and Application of Low Cost and Portable Atmospheric Pressure Microplasma Generation Devices

Monday, October 19, 2015, 10:00 am, Room 210A

Session: Atmospheric Pressure Plasma Processing I
Presenter: Cheng-Che Hsu, National Taiwan University, Taiwan, Republic of China
Authors: C.C. Hsu, National Taiwan University, Taiwan, Republic of China
P.K. Kao, National Taiwan University, Taiwan, Republic of China
Y.J. Yang, National Taiwan University, Taiwan, Republic of China
Y.H. Huang, National Taiwan University, Taiwan, Republic of China
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Low cost and portable atmospheric pressure microplasma generation devices (MGD) offer great opportunities in several applications when plasmas in-situ, on-demand and/or in-field are desired. This study presents the development of simple and economical MGD made on copper clad laminate. This MGD can be sustained using a portable power supply (less than two pounds) that can be powered by 12V-batteries. Matching of the device capacitance with power arrangement is extremely important for this power to properly function. The use of such devices for gas conversion, selective area treatment, and fabrication microfluidic paper-based analytical device (μPAD) on demand will be presented. Such a MGD can be used to perform surface patterning of hydrophobic/hydrophilic contrasts with sub-mm spatial resolution and to effectively decompose CO2 into CO. In addition, using this MGD to fabricate μPADs is demonstrated. With a proper design of the MGD electrode geometry, μPADs with 500 μm-wide flow channels can be fabricated within 1 min and with a cost of less than $USD 0.1/device. We then test the μPADs by performing quantitative colorimetric assays and establish calibration charts for detection of glucose and nitrite. The results show a linear response to glucose assay for 1 -50 mM and nitrite assay for 0.1 -5 mM . This low cost and portable MGD can be used for in-field diagnostic tests, and is believed to bring impact to the field of biomedical analysis, environmental monitoring, and food safety survey.