US 12,188,858 B2
Microfluidic system with combined electrical and optical detection for high accuracy particle sorting and methods thereof
Hany Nassef, Hayward, CA (US); Karthik Balakrishnan, Hayward, CA (US); Anand Kesavaraju, Hayward, CA (US); Vincent Tuminelli, Hayward, CA (US); and George Anwar, Hayward, CA (US)
Assigned to NODEXUS INC., San Jose, CA (US)
Filed by NODEXUS INC., San Jose, CA (US)
Filed on Jun. 26, 2023, as Appl. No. 18/214,230.
Application 18/214,230 is a continuation of application No. 17/826,771, filed on May 27, 2022, granted, now 11,733,152.
Application 17/826,771 is a continuation of application No. 16/483,922, granted, now 11,579,073, issued on Feb. 14, 2023, previously published as PCT/US2018/017036, filed on Feb. 6, 2018.
Claims priority of provisional application 62/456,069, filed on Feb. 7, 2017.
Prior Publication US 2023/0358665 A1, Nov. 9, 2023
Int. Cl. G01N 15/14 (2024.01); B01L 3/00 (2006.01); B07C 5/342 (2006.01); B07C 5/344 (2006.01); G01N 15/10 (2024.01)
CPC G01N 15/1484 (2013.01) [B01L 3/502715 (2013.01); B01L 3/502761 (2013.01); B07C 5/3425 (2013.01); B07C 5/344 (2013.01); G01N 15/1459 (2013.01); B01L 2200/0652 (2013.01); B01L 2300/0627 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0874 (2013.01); B01L 2400/06 (2013.01); G01N 2015/1006 (2013.01); G01N 2015/1028 (2024.01)] 20 Claims
OG exemplary drawing
 
1. A system for particle sorting, the system comprising:
a hardware platform comprising a housing configured to support and align one or more components of the system, wherein the components comprise:
a top plate comprising one or more pressure access ports;
a pneumatics module comprising one or more pressure sources in fluid communication with the one or more pressure access ports of the top plate;
a base plate configured to receive and connect to a microfluidic cartridge, wherein the top plate is positioned atop the microfluidic cartridge;
a collection module comprising a stage subsystem comprising a plate holder housing one or more output containers, wherein the collection module is configured for actuated movement in relation to a fixed position of the base plate, wherein the collection module is positioned below the base plate;
a detection and sorting module, wherein the detection and sorting module comprises one or more of optical and electrical detection means operable to detect a characteristic of a particle of interest by one or more of optical signals and electrical signals generated by the particle of interest as it passes through a sensing region of the microfluidic cartridge;
a waste module; and
a processor operable to receive data from the detection and sorting module upon detection of a target particle, to thereby activate sorting and collecting the target particle.