Signal enhancement using a switchable magnetic trap
US8189186B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Feb 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for analyzing a sample including providing a microchannel flow channel; associating the sample with magnetic nanoparticles or magnetic polystyrene-coated beads; moving the sample with said magnetic nanoparticles or magnetic polystyrene-coated beads in the microchannel flow channel; holding the sample with the magnetic nanoparticles or magnetic polystyrene-coated beads in a magnetic trap in the microchannel flow channel; and analyzing the sample obtaining an enhanced analysis signal. An apparatus for analysis of a sample includes magnetic particles connected to the sample, a microchip, a flow channel in the microchip, a source of carrier fluid connected to the flow channel for moving the sample in the flow channel, an electromagnet trap connected to the flow line for selectively magnetically trapping the sample and the magnetic particles, and an analyzer for analyzing the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.