Supramolecular structures were prepared in water by ionic self-assembly of oppositely charged iron(III) porphyrins and tested as a new class of catalase mimics. Iron(III) porphyrins carrying the positively charged groups, N-methyl-4-pyridinium (FeTMPyP), 4-pyridinium (FeTHPyP) and tetrafluoro-4-imidazoliumphenyl (FeTFHImP) were assembled with iron tetrakis(4-sulfonatophenyl)porphyrin (FeTSPP), at an optimized pH. The material with the best catalase activity (FeTHPyP:FeTSPP) showed 65-77 catalase units (U)/mg in the pH range 3.5-7.0, which was significantly higher than the 3 U/mg observed for the individual porphyrins. Analogous metal-free structures had no catalytic activity. Micro-scale structures with nanoscale features were observed by Scanning Electron Microscopy. Studies of the chemical composition of materials by X-ray Photoelectron Spectroscopy showed the formation of structures with a 1:1 ratio for (+):(‒) tectons. Characterization of particles in solution was carried out at different pH and before and after catalysis by UV-vis spectroscopy, Dynamic Light Scattering (measurement of hydrodynamic diameters) and Electrophoretic Light Scattering (measurement of zeta potentials).

超分子结构是通过带相反电荷的铁（III）卟啉的离子自组装在水中制备的，并作为一类新的过氧化氢酶模拟物进行测试。带有正电荷基团的铁（III）卟啉N将四甲基（4-磺酰基苯基）卟啉（FeTSPP）组装在最适pH下，将-甲基-4-吡啶鎓（FeTMPyP），4-吡啶鎓（FeTHPyP）和四氟-4-咪唑鎓苯基（FeTFHImP）组装在一起。具有最佳过氧化氢酶活性的材料（FeTHPyP：FeTSPP）在3.5-7.0的pH范围内显示65-77个过氧化氢酶单位（U）/ mg，明显高于单个卟啉的3 U / mg。类似的无金属结构没有催化活性。通过扫描电子显微镜观察具有纳米级特征的微尺度结构。通过X射线光电子能谱对材料的化学成分进行的研究表明，（+）：（‒）构造体以1：1的比例形成了结构。溶液中颗粒的表征是在不同pH值下以及通过紫外可见光谱法在催化前后进行的，