Protein Concentraion


Molecular Filtration (MFI) is the process of separating extremely small particles and dissolved molecules from fluids. The primary basis for separation is the organophobicity of the ceramic membrane, although in all filtration applications, the permeability of a filter medium can be affected by the chemical, molecular or electrostatic properties of the sample.

All organic materiasl are retained by organophobic ceramic membranes, while salts and water will pass through. Colloidal and particulate matter are also retained. MFI organophobic ceramic membranes can be used both to purify material passing through the filter and also to collect material retained by the filter. 

MFI is typically used to separate proteins from buffer components for buffer exchange, desalting, or concentration. Molecular filters are also ideal for removal or exchange of sugars, non-aqueous solvents, the separation of free from protein-bound ligands, the removal of materials of low molecular weight, or the rapid change of ionic and/or pH environment. 

MFI is far gentler to solutes than processes such as precipitation. MFI is more efficient because it can simultaneously concentrate and desalt solutes. It does not require a phase change, which often denatures labile species, and MFI can be performed either at room temperature or in a cold room.


Our Organophic Ceramic Membrane

Molecular Filtration, Inc. organophobic ceramic membranes are a proprietary nanotechnology  that combines innovative design features and unique materials of construction to provide the only organic rejection ceramic membrane with superb capabilities

Due to its nano technology,our membranes are no longer separation organics by size exclusion, we simple reject organics by nature of our science.

The unique membrane chemistry, allows the utilization of large-diameter pore size, which translates to higher permeate flows and a smaller footprint of installed equipme

Why our ceramic membranes are superior?


Our patented technology embedded in our ceramic membranes, gives us the ability to reject organics. The fact that bacteria, virus and any organic form is rejected from the surface or our ceramic membrane, makes us unique in the field of filtration. 

Conventional processes will suffer from bio-fouling after a period of time when processing fluids with a high content of organics. Our membranes since they reject organics do not suffer from bio-fouling.

Let's look and compare the difference

When we look at the surface of our membranes using a Scanning Electron Microscope (SEM) we can clearly see the difference with the conventional ceramic membranes.


Ceramic Membrane Comparison


MFI MembraneConventional Membrane

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