Wirelessly powered dielectrophoresis of metal oxide particles using spark-gap Tesla coil |
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| Authors: | Faisal Budiman Desri Kristina Silalahi Bagaskoro Muhamad Muhammad Rafi Fathurahman Monna Rozana Hirofumi Tanaka |
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| Affiliation: | 1. School of Electrical Engineering, Telkom University, Jl. Telekomunikasi no. 1, Bandung, West Java, 40257 Indonesia;2. Research Unit for Clean Technology, Indonesia Institute of Science, Jl. Sangkuriang - Komplek LIPI, Bandung, West Java, 40135 Indonesia;3. Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135 Japan |
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| Abstract: | Wirelessly powered dielectrophoresis (DEP) of metal oxide particles was performed using a spark-gap Tesla coil (TC). The main contribution of this work is the simplification of the conventional DEP setup that requires attaching wires directly to the electrodes. Wireless power from the TC generates a high output frequency and voltage, which corresponds to that used for the DEP. Therefore, a spark-gap TC was built and utilized to conduct the DEP process. Metal oxides (ZnO and Fe2O3) were used as targets for the assembly. The results showed that the wirelessly powered DEP technique via a TC was successful in assembling the metal oxide particles. Positive and negative DEP phenomena were observed. Positive DEP occurred during ZnO assembly, making particles chain grow 0.92 mm toward the sparks within 60 s. Negative DEP was observed during Fe2O3 assembly, where the repulsion of particles formed a void around the sparks with a 1.45 mm radius. The mechanism of this wireless DEP system is discussed. |
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| Keywords: | Assembly Dielectrophoresis Metal oxide Spark-gap Tesla coil Wireless energy |
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