IrOx

Materials

ref material size size err size unit size type size comment BET b nanozyme b 10n b unit specific act sa 10n sa unit comment
7407 109 IrOx ~24.05 nm TEM The as-prepared nanoparticles show a spherica morphology with diameter of ~24.05±0.29 nm (Figure 1b)
8454 1455 IrOx TEM The as-prepared nanoparticles show a spherical morphology with diameter of ~24.05±0.29 nm (Figure 1b). They were composed by the accumulation of many small granules (2.28±0.4 nm) formed at the initial heating period (Figure S2).

Kinetics

ref material enzyme type substrate pH T km km err km 10n km unit vmax vmax err vmax 10n vmax unit kcat kcat err kcat 10n kcat unit kcat/km kcat/km 10n kcat/km unit comment
7367 1455 IrOx POD 1455
5994 109 IrOx POD TMB 19.27 mM 1.79 μM/s 109 109

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
6300 1455 IrOx Anti-tumor
5012 109 IrOx demonstrate for the first time that iridium oxide nanoparticles (IrOx) possess acid-activated oxidase and peroxidase-like functions and wide pH-dependent catalase-like properties. Integrating of glucose oxidase (GOD) could unlock its oxidase and peroxidase activities by gluconic acid produced by catalysis of GOD towards glucose in cancer cells, and the produced H2O2 can be converted to O2 to compensate its consumption in GOD catalysis due to the catalase-like function of the nanozyme, which result in continual consumption of glucose and self-supplied substrates for generating superoxide anion and hydroxyl radical.

References

ref title DOI material type comment
3340 109 Specific “Unlocking” Nanozyme‐based Butterfly Effect for Breaking the Evolutionary Fitness of Chaotic Tumor https://doi.org/10.1002/anie.201916142 Metal oxide Herein, we demonstrate for the first time that iridium oxide nanoparticles (IrOx) possess acid-activated oxidase and peroxidase-like functions and wide pH-dependent catalase-like properties.
4602 1455 New concept of tumor therapy: Specific “unlocking” of a nanozyme-based butterfly effect to break the evolutionary fitness of chaotic tumors https://doi.org/10.1002/anie.201916142 Metal oxide iridium oxide (IrOx)