Microplastic detection sensor and microplastic detection system using the same

A microplastic detection sensor comprising:

• a fluidic channel substrate comprising an inlet and an outlet,
• the inlet formed on a first end of the fluidic channel substrate and configured to introduce a liquid sample containing microplastic dispersed in a dispersion liquid,
• the outlet formed on a second end of the fluidic channel substrate,
• the fluidic channel substrate further comprising a microfluidic channel formed therein to connect the inlet and the outlet and move the sample introduced through the inlet toward the outlet by capillary action, and
• the fluidic channel substrate further comprising a plurality of capture parts formed along the microfluidic channel and configured to selectively capture the microplastic contained in the sample according to a particle size;
• and
• a plurality of radio frequency (RF) resonance structures respectively corresponding to the plurality of capture parts formed on first and second sides of the fluidic channel substrate, each of the RF resonance structures configured to output information about the microplastic captured in the corresponding capture part through RF resonance for an applied RF signal.