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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Marine & Wildlife Sign in to save

Development of the Electrode for the Particle Sampling Using Negative Dielectrophoresis by Additive Synthesis Sine Wave

Electrical Engineering in Japan 2025
Hidehiko Yamaoka, Kohki Nagata, Masaya Funahashi, Ippei Yagi, Satoshi Uchida

Summary

Researchers developed an electrode system combining negative dielectrophoresis with additive synthesis sine wave driving signals for concentrating and quantifying ocean microplastics, using optical attenuation measurement to enable quantitative assessment of particles smaller than 5 mm.

Study Type Environmental

ABSTRACT Currently, no technology has been established to measure the amount of ocean microplastics (MP) less than 5 mm. As a basic study of the quantitative evaluation, the authors proposed measurement method using the attenuation of transmitted light for the amount of microplastic that concentrated by dielectrophoresis. In this study, we report effective collection method of microplastics by combining an electrode structure that generate negative dielectrophoresis and a driving method using additive Synthesis sine wave.

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