# US 2016/0187293 A1 · Electrophoresis system

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- Number: US 2016/0187293 A1
- Document ID: US20160187293A1
- Status: Published application
- Kind: A1
- Application number: 14/124,986
- Filed: 2012-06-11
- Published: 2016-06-30
- Earliest claimed: 2011-06-10
- Assignees: Arizona Board of Regents acting for and on behalf of University of Arizona; BioAccel
- Inventors: Frederic ZENHAUSERN; Alan NORDQUIST; Ralf LENIGK; Cedric HURTH; Jianing YANG; Xiaojia CHEN; Matthew ESTES; John LEE-EDGHILL; Nina MORAN; Andrew HOPWOOD; Pieris KOUMI
- Web page: https://patentgrep.com/patent/US20160187293A1

## CPC

- G01N 27/44756: {Apparatus specially adapted therefor}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

An electrophoresis device where the end of the electrophoresis channel has a part that extends vertically. The electrophoresis channel includes a first access port at one end of the channel and a second port at the other end of the channel, which are in the same horizontal plane. In this way, there is a less than 0.1% hydrostatic pressure differential between two ports and the performance of the device is improved.

## Claims

### Claim 1

A device, for processing a sample, the device comprising: an electrophoresis step provided on the device, the electrophoresis step including one or more channels including an electrophoresis channel which includes a separation length and a further part at one or both ends, one or both of the further parts, at least in part, extend in the direction of gravity.

### Claim 2 (depends on 1)

A device according to claim 1, wherein one or both of the further parts have a vertical portion.

### Claim 3 (depends on 1)

A device according to claim 1 wherein the electrophoresis channel has a first end access location towards one end of the channel and the electrophoresis channel has a second end access location towards the other end of the channel, the first end access location and the second end access location being provided in the same horizontal plane.

### Claim 4 (depends on 3)

A device according to claim 3 wherein there is a less than 0.1% hydrostatic pressure differential between the first end access location and the second end access location.

### Claim 5 (depends on 1)

A device according to claim 1 wherein the electrophoresis channel has a side channel, the side channel is connected to the sample feed channel and the electrophoresis channel has a second side channel.

### Claim 6 (depends on 5)

A device according to claim 5 wherein the first side channel extends, at least in part, in the direction of gravity, to the electrophoresis channel.

### Claim 7 (depends on 5)

A device according to claim 5 wherein the second side channel, at least in part, extends in the direction of gravity.

### Claim 8 (depends on 6)

A device according to claim 6 wherein the second side channel has a first vertical portion and a second vertical portion.

### Claim 9 (depends on 1)

An instrument for analysing a sample, the instrument comprising: a device having an electrophoresis step and being provided according to claim 1.

### Claim 10 (depends on 1)

A method of operating a device to process a sample, the method comprising: introducing a sample to an electrophoresis step; processing the sample in the electrophoresis step; obtaining a result, wherein the device is provided according to claim 1.