Granted Patent
B2
US 12,551,895 · App. 18/457,325 · Granted Feb 17, 2026
Multi-cartridge digital microfluidics apparatuses and methods of use
Inventors:
Jorge Abraham Soto-Moreno (San Francisco, CA); Mais Jehan Jebrail (Toronto, CA); Juan Matias DeCarli (Buenos Aires, AR)
Assignee:
INTEGRA Biosciences AG
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Abstract
High-throughput digital microfluidic (DMF) systems and methods (including devices, systems, cartridges, DMF apparatuses, etc.), are described herein. The systems, apparatuses and methods integrate liquid handling with the DMF apparatuses, providing flexible and efficient sample reactions and sample preparation. These systems, apparatuses and methods may be used with a variety of cartridge configurations and sizes.
Claims (15)
1 . A method of selectively immobilizing one or more cartridges in a digital microfluidics apparatus having a plurality of driving electrodes, the method comprising:
disposing one or more cartridges on a seating surface of the digital microfluidics apparatus, thereby defining one or more respective seating locations of the one or more cartridges, wherein each of the one or more cartridge sits on a sub-region of the seating surface;
sensing each respective seating locations of the one or more cartridges;
determining a sub-set of the plurality of driving electrodes underlying the respective seating locations of the one or more cartridges; and
selectively applying a vacuum to the respective seating locations of the one or more cartridges to immobilize the one or more cartridges to the seating surface of the digital microfluidics apparatus.
2 . The method of claim 1 , wherein selectively applying the vacuum comprises applying vacuum through a sub-set of vacuum ports underlying the respective seating locations.
3 . The method of claim 1 , wherein applying vacuum comprises applying vacuum through an opening through all or some of the driving electrode underlying the respective seating locations.
4 . The method of claim 1 , wherein sensing each respective seating locations comprises sensing an electrical difference in the plurality of driving electrodes underlying the respective seating locations.
5 . The method of claim 1 , wherein sensing each respective seating locations comprises sensing a resistance to airflow through a subset of vacuum ports on the seating surface in the respective seating locations.
6 . The method of claim 1 , wherein each of the one or more cartridges comprise a bottom plate configured to deform when vacuum is applied, thereby adhering to the seating surface.
7 . The method of claim 1 , wherein each respective seating locations of the one or more cartridges has a respective area corresponding to a size of each cartridge.
8 . The method of claim 1 , wherein at least one of the one or more cartridges has a size that is different from others of the one or more cartridges.
9 . The method of claim 1 , wherein the seating surface includes one or more cartridge alignment features.
10 . The method of claim 1 , further comprising selectively delivering a magnetic field within a region of the plurality of the driving electrodes.
11 . The method of claim 1 , wherein applying vacuum comprises selectively applying the vacuum through a manifold and a plurality of valves.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Sep 6, 2024
From: SOTO-MORENO, JORGE ABRAHAM; JEBRAIL, MAIS JEHAN; DE CARLI, JUAN MATIAS
To: MIROCULUS INC.
Reel/Frame 068510/0126 →
Continuity (3)
Provisional Application
62831171
· Apr 8, 2019
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