Boosting Nanozyme Activity by Modulating pH
Author Information
Author(s): Li Tong, Wang Xiaoyu, Wang Yuting, Zhang Yihong, Li Sirong, Liu Wanling, Liu Shujie, Liu Yufeng, Xing Hang, Otake Ken-ichi, Kitagawa Susumu, Dong Hao, Wei Hui
Primary Institution: Nanjing University
Hypothesis
Can we modulate the microenvironmental pH of nanozymes to enhance their catalytic activities?
Conclusion
The study demonstrates that modifying the microenvironmental pH of nanozymes can significantly enhance their catalytic activities under neutral conditions.
Supporting Evidence
- The confinement of poly(acrylic acid) within MOF nanozymes lowers the local pH, enhancing their peroxidase-like activity.
- Experimental investigations and molecular dynamics simulations support the hypothesis that modulating pH can improve nanozyme performance.
- Nanozymes modified with poly(acrylic acid) showed a fourfold increase in activity at neutral pH compared to unmodified versions.
Takeaway
This research shows that by changing the pH around tiny catalysts called nanozymes, we can make them work better, like giving them a boost.
Methodology
The study involved confining polyacids and polybases within metal-organic framework (MOF) nanozymes to modulate their local pH and enhance their catalytic activities.
Limitations
The study primarily focuses on specific types of nanozymes and may not be generalizable to all nanozymes.
Digital Object Identifier (DOI)
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