Tecan Trading Ag

Tiffany Ding (Lay)

Patrick D Kinney

Sujata Iyer

Tin Ngo

Jennifer Ji

Manjeet Dhindsa

Marta Matvienko

Daniel Hoffmeyer

Daniel Tran

A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge contains an internal gap with at least one hydrophobic surface for enabling an electrowetting induced movement of a microfluidic droplet that has magnetic beads and further has a bead accumulation zone, into which the microfluidic droplet is transferable by electrowetting force and the magnetic beads are exposable to a magnetic force of a bead manipulation magnet. The internal gap has a bead extraction opening adjacent to the bead accumulation zone. The bead extraction opening provides a passage from the gap to an exterior space of the cartridge and is configured to removably receive the bead manipulation magnet for enabling an extraction of the magnetic beads from the microfluidic droplet by a removal of the bead manipulation magnet.

Cartridge, electrowetting sample processing system and bead manipulation method

A cartridge, in particular a disposable cartridge, for use in an electrowetting sample processing system. The cartridge has a liquid input port for introducing an input liquid into an internal gap of the cartridge, the input liquid providing for at least one droplet, directly or via a liquid separation process within the internal gap, and the internal gap having at least one hydrophobic surface, at least one processing zone for processing samples located in the processing zone, and a delivery zone for delivering the at least one droplet from the liquid input port to the at least one processing zone. The delivery zone is configured to provide a repeating pattern of interacting electrowetting force for simultaneously transporting the at least one droplet within the delivery zone.

Cartridge and electrowetting sample processing system with delivery zone

A cartridge for use in an electrowetting sample processing system, the cartridge having at least one inlet port for introducing an input liquid in an internal gap of the cartridge, wherein the gap has at least one hydrophobic surface and is configured to provide an electrowetting induced movement of a microfluidic droplet of input liquid, wherein the input liquid has a carrier liquid and a processing liquid and the gap has a capture zone that is configured to capture at least a part of the processing liquid as a microfluidic droplet by use of electrowetting force and the gap further has a transfer zone that is configured to provide a passage for the carrier liquid next to the microfluidic droplet, while processing liquid is captured in the capture zone.

Cartridge, electrowetting sample processing system and droplet formation

Growing community of inventors

San Jose, CA, United States of America

Tiffany Ding (Lay)