Process technology for biological product manufacturing and downstream purification
Provided herein are, inter alia, biological manufacturing and downstream purification processes.
1. A free-flow electrophoresis apparatus comprising:
a main separation channel having at least one fluidic channel between two opposing plates and configured to create an electric field gradient orthogonal to the direction of fluid flow in the main separation channel;
electrode channels comprising an anodic electrode channel and a cathodic electrode channel, wherein the electrode channels are configured to be connected to the main separation channel by liquid contact through a wall gap positioned between the electrode channels and the main separation channel;
at least one electrode channel de-bubbler comprising at least one gas permeable material configured to remove bubbles by a vacuum system;
at least one liquid circuit breaker configured to disconnect a liquid connected to voltage prior to interacting with at least one sensor or detector; and
a cooling system.
2. The apparatus of claim 1 , wherein a portion of the electrode channels is sealed with at least one gas permeable and hydrophobic membrane in communication with a vacuum system, and wherein the electrode channels are open at another portion of the channels and configured to enable liquid contact of electrode solution with the main separation channel solution through a wall gap.
3. The apparatus of claim 1 , wherein wall gap is about 0.01 mm to about 0.25 mm.
4. The apparatus of claim 1 , wherein the liquid circuit breaker comprises a pressurized vessel configured to maintain a flow rate and creates droplets that are isolated from the solution connected to voltage.
5. The apparatus of claim 1 , wherein the at least one sensor is an in-line sensor.
6. The apparatus of claim 1 , further comprising at least two free-flow electrophoresis apparatuses connected in series and operated in an isoelectric focusing mode, a zone electrophoresis mode, an isotachophoresis mode, or combinations thereof.
7. The apparatus of claim 1 , wherein the gas permeable material comprises a porous material or a hydrophobic membrane.
8. The apparatus of claim 1 , wherein the de-bubbler is configured to remove O 2 and H 2 gas bubbles.
9. The apparatus of claim 1 , wherein the de-bubbler is configured to remove electrolysis bubbles.
10. The apparatus of claim 1 , wherein the de-bubbler is configured to allow a bubble-free main separation channel.
11. The apparatus of claim 1 , wherein the apparatus further comprises at least one collection vessel.