2026-10-12T01:43:04Z https://www.scidb.cn/oai

10.57760/sciencedb.07400 2023-09-27T14:03:02Z

2023-09-27 Dendritic silica with carbon dots and gold nanoclusters for dual nanozymes doi:10.57760/sciencedb.07400 en Many biochemical processes are accomplished by multiple enzymes, so it is important to develop nanocomposite microspheres with multiple enzyme mimetic ability. Here, well-designed nanozyme engineering (termed dSCS-Au NPs) was established for dual nanozymes with dendritic silica spheres (dSs) used as a carrier. The carbon dots (C-dots) were covalently immobilized into the interior surface of amino-terminated dSs, while gold nanoclusters (Au NCs) were linked to the surface of the dSs through activating agents of EDC/NHS. The dSCS-Au NPs exhibited excellent compatibility for two nanozymes, maintaining the superoxide dismutase (SOD)-like activity of C-dots and improving the horseradish peroxidase (HRP)-like activity of Au NCs. In addition, the HRP-like activity of dSCS-Au NPs could be regulated by changing the amount of loading of Au NCs. It has promising applications in biocatalysis with multiple enzyme reactions in the future. PEROXIDASE-MIMICKING; NANOPARTICLES; FLUORESCENCE; NANOSHEETS Lirong Zhao Ren, Xiangling Zhang, Jing Zhang, Wei Chen, Xudong Meng, Xianwei PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1039/c9nj05655f Science Data Bank