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Enzyme Cascade Reaction-Propelled Multicompartmental Colloidal Motors
Qihan Zhang1, Jun Liu1, Yingjie Wu1
1Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, No. 92 XiDaZhi Street, Harbin, 150001, P. R. China.
Chemistry, an Asian Journal
|June 27, 2022
Summary
Researchers developed biocompatible colloidal motors that move autonomously using enzyme cascade reactions. These motors utilize immobilized glucose oxidase (GOD) and catalase (CAT) for efficient biocatalysis in biological environments.
Area of Science:
- Biotechnology
- Nanotechnology
- Biomaterials
Background:
- Compartmentalization is essential for efficient biocatalytic processes.
- Developing autonomous systems for biological environments requires robust designs.
Purpose of the Study:
- To create a biocompatible multicompartmental colloidal motor capable of autonomous movement.
- To utilize enzyme cascade reactions for propulsion in biological settings.
Main Methods:
- Fabrication of multicompartmental colloidal motors using one-step microfluidic technology.
- Immobilization of glucose oxidase (GOD) and catalase (CAT) within distinct compartments.
- Utilizing pH-responsive alginate cores for fuel penetration and reaction facilitation.
Main Results:
- Successfully synthesized size-controllable colloidal motors.
- Demonstrated autonomous movement triggered by alkaline environments (pH 7.5).
- Achieved self-propulsion via GOD-catalase enzyme cascade in glucose medium.
Conclusions:
- Compartmentalized enzyme immobilization enhances enzyme stability and motor performance.
- These motors exhibit potential for applications requiring co-encapsulation and autonomous movement in biological systems.
- The pH-responsive nature allows operation in environments like the alkaline intestine.
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