Engineered Polymer-Supported Biorthogonal Nanocatalysts Using Flash Nanoprecipitation.

Area of Science:

• Biomaterials Science
• Catalysis
• Nanotechnology

Background:

• Transition-metal catalysts (TMCs) are crucial for bioorthogonal transformations, enabling in situ therapeutic agent generation.
• Polymeric nanoparticles, or polyzymes, enhance the solubility and stability of insoluble TMCs for biological applications.
• Current polyzyme fabrication methods using precipitation have limitations in encapsulation efficiency and catalytic activity.

Purpose of the Study:

• To develop a novel method for fabricating polyzymes with high catalyst loading and optimized turnover efficiency.
• To control polyzyme size and catalyst loading through tunable process conditions.
• To demonstrate the biological applicability of these advanced polyzymes in cancer therapy.

Main Methods:

• Flash nanoprecipitation (FNP) was employed for the fabrication of polyzymes.
• Process conditions of FNP were tuned to control polyzyme size and catalyst loading.
• The efficacy of polyzymes was evaluated by their ability to transform a prodrug into an active drug in cancer cells.

Main Results:

• Polyzymes with significantly increased catalyst loading and optimized turnover efficiency were successfully created using FNP.
• The FNP method allowed for precise control over polyzyme size and catalyst loading.
• Demonstrated efficient in situ transformation of a non-toxic prodrug into an active therapeutic agent within cancer cells.

Conclusions:

• Flash nanoprecipitation offers a superior approach for polyzyme fabrication compared to traditional precipitation methods.
• The developed polyzymes exhibit enhanced catalytic activity and controlled properties for biomedical applications.
• These findings highlight the potential of FNP-fabricated polyzymes for targeted cancer therapy and in situ drug generation.