Charged polymer interactions alter the structure and dynamics of surrounding water molecules, with implications in biological and technological applications, but studying these interactions across a broad concentration range has remained challenging. Here, the authors combine angle-resolved second harmonic scattering, dynamic light scattering, nuclear magnetic resonance, and molecular dynamics simulations to investigate the interactions between hyaluronan (HA) and different oligopeptides, observing selective, multivalent binding between HA and cationic peptides that induce solvent and solute restructuring as well as nanoscale dynamic clustering.
- Miguel Riopedre-Fernandez
- Bingxin Chu
- Hector Martinez-Seara