Arbitrary and simultaneous control of multiple objects in microfluidic systems
US7651598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Dec 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/149
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a microfluidic device, respective motion of a plurality of objects along corresponding trajectories is achieved by determining a force field, such as an underlying fluid flow which, when applied to the plurality of object, moves each object along its corresponding trajectory. The force field is a linear superposition of a subset of all force fields supported by the physical characteristics of the microfluidic device. Once the fields have been ascertained, a plurality of actuation signals corresponding to the fields is applied to actuators installed on the microfluidic device to cause the force on each object. By implementing a feedback structure, corrections for positional errors may be made by computing a corrective force for each object and adjusting the actuation signals appropriately thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.