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.

中文翻译：

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使用火花隙特斯拉线圈对金属氧化物颗粒进行无线供电介电泳


使用火花隙特斯拉线圈 (TC) 进行金属氧化物颗粒的无线供电介电泳 (DEP)。这项工作的主要贡献是简化了需要将电线直接连接到电极的传统 DEP 设置。 TC 的无线电源产生高输出频率和电压，与 DEP 所使用的频率和电压相对应。因此，建立了火花隙 TC 并用于进行 DEP 过程。金属氧化物（ZnO 和 Fe ₂ O ₃ ）用作组装的靶材。结果表明，通过 TC 的无线供电 DEP 技术成功组装了金属氧化物颗粒。观察到正和负 DEP 现象。 ZnO 组装过程中发生正 DEP，使粒子链在 60 秒内向火花方向生长 0.92 mm。在 Fe ₂ O ₃组装过程中观察到负 DEP，其中颗粒的排斥在火花周围形成半径为 1.45 mm 的空隙。讨论了该无线DEP系统的机制。