Who is trying to precipitate poly-anions like melanins by poly-cations electrolytes?

The process of precipitating poly-anions like melanins using poly-cation electrolytes is often explored in the context of materials science and biochemistry. Researchers in these fields, particularly those studying biomaterials, drug delivery systems, or nanocomposites, may attempt this to create novel materials with specific properties. By utilizing poly-cations to interact with negatively charged poly-anions, they aim to engineer structures that exhibit enhanced stability, conductivity, or biocompatibility.