In this paper, we will demonstrate a selective surface patterning method by a micro-plasma discharge. In this method, argon plasma is ignited through a hole of copper clad polyimide microstructure electrodes. As an illustration, experiments were performed in which an octadecanethiol (CH3(CH2)17SH) self-assembled monolayer (SAM) on a gold film is exposed to a microdischarge and subsequently followed by immersion into the 16-mercaptohexadecanoic acid (COOH(CH2)15SH) solution. The octadecanethiol SAM is desorbed upon Ar plasma exposure, allowing the formation of a second SAM on the damaged region [Chai et al, App. Phys. Lett., 86, 034107 (2005)]. The patterned samples are viewed by using optical microscope and scanning electron microscopy. The advantage of this approach is that it is noncontact and eliminates the need of photolithography. The patterned samples can be employed to microfluidic self-propelled movement.
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ASME 3rd International Conference on Microchannels and Minichannels
June 13–15, 2005
Toronto, Ontario, Canada
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4185-5
PROCEEDINGS PAPER
Selective Surface Modification and Patterning on Self-Assembled Monolayers by a Micro-Plasma Discharge
Jinan Chai,
Jinan Chai
University of Alberta, Edmonton, AB, Canada
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Baoming Li,
Baoming Li
University of Alberta, Edmonton, AB, Canada
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Daniel Y. Kwok
Daniel Y. Kwok
University of Alberta, Edmonton, AB, Canada
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Jinan Chai
University of Alberta, Edmonton, AB, Canada
Baoming Li
University of Alberta, Edmonton, AB, Canada
Daniel Y. Kwok
University of Alberta, Edmonton, AB, Canada
Paper No:
ICMM2005-75172, pp. 613-616; 4 pages
Published Online:
November 11, 2008
Citation
Chai, J, Li, B, & Kwok, DY. "Selective Surface Modification and Patterning on Self-Assembled Monolayers by a Micro-Plasma Discharge." Proceedings of the ASME 3rd International Conference on Microchannels and Minichannels. ASME 3rd International Conference on Microchannels and Minichannels, Part B cont’d. Toronto, Ontario, Canada. June 13–15, 2005. pp. 613-616. ASME. https://doi.org/10.1115/ICMM2005-75172
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