Polymeric Matrix for Suspension Fractionation

The patent replaces the mechanical centrifugation system with a chemical/biological separation mechanism using affinity matrices. The affinity matrix selectively binds to target molecules through specific interactions (e.g., antibody-antigen, ligand-receptor), enabling separation without mechanical force and eliminating the need for centrifuges.

The affinity matrix acts as an intermediary substance that mediates the separation process. It provides a surface or environment where selective binding occurs, facilitating separation of components based on their specific affinity for the matrix rather than through direct mechanical separation.

The patent employs porous affinity matrices that provide large surface area and controlled pore sizes. These porous structures allow small molecules and fluids to penetrate while larger cellular components are excluded, preventing clogging while maintaining high separation efficiency through the porous network.

The affinity matrix exhibits local quality through its heterogeneous surface properties, with specific regions containing binding sites for different targets. This allows selective interaction with particular molecules or cells while permitting others to pass through, maintaining efficiency without blockage.

The patent changes the operational parameters by using static affinity binding rather than dynamic tangential flow. The separation is achieved through thermodynamic equilibrium of binding interactions rather than hydrodynamic flow patterns, simplifying the apparatus while preventing clogging through selective molecular recognition.

The patent extracts the essential separation function from complex flow systems and concentrates it in the affinity matrix material itself. The matrix provides both the separation mechanism and the structural framework, eliminating the need for separate membrane modules and flow control systems.