Cross-Linker-Based Design of Selective Macroporous Polymer Resins for Uremic Toxin Removal

= 1.74), optimal pore architecture featuring hierarchical morphology with interconnected macro- and mesopores (average diameter 3.58 nm), collectively enhanced B2M capture. Conversely, urea adsorption was negligible across all MPR networks, with activated carbon outperforming synthetic materials. These contrasting profiles demonstrated the importance of cross-linker selection on adsorption selectivity, thus providing the platform for tuning and designing the right molecular chemistry to enable toxin-selective adsorbents for dialysis applications.