Biodegradable Antibacterial Bioorthogonal Polymeric Nanocatalysts Prepared by Flash Nanoprecipitation
Stefano Fedeli1, Rui Huang1, Yavuz Oz1,2
1Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States.
ACS Applied Materials & Interfaces
|March 15, 2023
Summary
Researchers developed biodegradable nanocatalysts using a safe polymer and natural hemin. These nanocatalysts effectively treat bacterial biofilms by activating a pro-antibiotic, offering a safer approach for biomedical applications.
Area of Science:
- Biomaterials Science
- Catalysis
- Nanotechnology
Background:
- Bioorthogonal activation of pro-dyes and prodrugs with transition-metal catalysts (TMCs) is promising for medical imaging and therapy.
- Polymeric nanoparticles offer enhanced solubility and stability for TMCs but face challenges with biodegradability and heavy-metal toxicity.
Purpose of the Study:
- To create fully biodegradable nanocatalysts for biomedical applications.
- To address the limitations of nonbiodegradable nanomaterials and cytotoxic heavy-metal catalysts.
Main Methods:
- Engineered an FDA-approved polymer and the natural catalyst hemin to create biodegradable nanocatalysts.
- Utilized flash nanoprecipitation for kinetic stabilization, generating stable nanocatalysts.
- Demonstrated therapeutic potential by activating a pro-antibiotic for bacterial biofilm treatment.
Main Results:
- Successfully synthesized fully biodegradable nanocatalysts.
- Achieved enhanced solubility and stability of the nanocatalysts.
- Demonstrated effective treatment of bacterial biofilms via bioorthogonal pro-antibiotic activation.
Conclusions:
- Biodegradable nanocatalysts based on safe polymers and natural catalysts offer a promising alternative to traditional TMC nanostructures.
- This approach overcomes challenges related to material accumulation and catalyst toxicity.
- The developed nanocatalysts show significant therapeutic potential for treating bacterial infections.
