| abstract |
A device for extracting and concentrating a target analyte including a sample channel that receives the sample, a separation channel, a waste channel, a first junction between the sample channel and the separation channel, and, a second junction between the separation channel and the waste channel. The first junction selectively transports a first group of analytes, including target analytes, from the sample channel to the separation channel in accordance with a size of a first free transport region of the first junction. The second junction selectively transports a second group of analytes from the separation channel to the waste channel in accordance with a size of a second free transport region of the second junction, the second group being a subset of the first group, so as to concentrate a number of the target analytes in the separation channel. |