US 12,405,204 B2
Method and device for identifying the material type of particles in liquid
Mehmet Selim Hanay, Ankara (TR); and Uzay Tefek, Ankara (TR)
Assigned to Mehmet Selim Hanay, Ankara (TR)
Filed by Mehmet Selim Hanay, Ankara (TR)
Filed on Jun. 20, 2023, as Appl. No. 18/337,451.
Claims priority of provisional application 63/353,633, filed on Jun. 20, 2022.
Prior Publication US 2023/0408396 A1, Dec. 21, 2023
Int. Cl. G01N 15/1031 (2024.01); B01L 3/00 (2006.01); G01N 15/10 (2024.01)
CPC G01N 15/1031 (2013.01) [B01L 3/502715 (2013.01); B01L 2200/0647 (2013.01); B01L 2300/0636 (2013.01); B01L 2300/0645 (2013.01); G01N 2015/1029 (2024.01)] 5 Claims
OG exemplary drawing
 
1. A microfluidic platform with a liquid channel for a material identification of a particle, comprising a first set of electrodes forming a low-frequency sensor for measuring a geometric size of the particle passing through the liquid channel and a second set of electrodes forming a high-frequency sensor for measuring a capacitance change induced by the particle in the liquid channel, wherein the first set of electrodes contains five electrodes, wherein the five electrodes forming the low-frequency sensor comprise three active electrodes and two floating electrodes, the three active electrodes comprises a first active electrode, a second active electrode, and a third active electrode, and the two floating electrodes comprise a first floating electrode and a second floating electrode, wherein the first floating electrode is located between the first active electrodes and the second active electrode, and the second floating electrode is located between the second active electrode and the third active electrode.