Procion Blue HB (Reactive Blue 2) is a triazine dye that removes viral particles from plasma protein solutions.

I. Virus Removal
1. Prepare the solution: First, dissolve Reactive Blue 2 in an appropriate solvent, usually water or PBS. The concentration can be adjusted according to the experimental needs, usually 1-5 mg/mL.
2. Mix with plasma protein solution: Add the dissolved Reactive Blue 2 to the plasma protein solution, usually incubate at room temperature for a certain time (such as 1 hour).
3. Virus Removal: After the virus particles bind to Reactive Blue 2, the virus particles and dye can be removed from the plasma by ultrafiltration, centrifugation or other separation techniques.
4. Washing: Finally, wash the plasma protein solution with PBS or other buffer to remove unbound dye and virus particles.
II. Membrane Filtration Technology for Virus Removal
1. Membrane Filtration: Filter the plasma protein solution treated with Reactive Blue 2 through a membrane filter. Usually, a filter membrane with an appropriate pore size is selected to remove virus particles.
2. Monitoring: Use microscopy, flow cytometry or other detection methods to confirm the removal effect of virus particles.
3. Used for virus clearance research
1. Virus infection experiment: Study the virus removal efficiency by mixing the virus sample with plasma protein solution and treating it with Reactive Blue 2.
2. Detection of viral load: Use PCR, ELISA or other virus detection techniques to measure the concentration change of the virus before and after treatment to evaluate the removal effect.

The above information is based on published literature. Experimental procedures should be appropriately modified to meet specific research demands.

H2O: 10 mg/mL (12.92 mM), Sonication is recommended.

Ethanol: < 1 mg/mL (Insoluble)

DMSO: 110 mg/mL (142.09 mM), Sonication is recommended.