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Updated: Jan 19, 2026

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One-Step Fabrication of Enzyme-Immobilized Reusable Polymerized Microcapsules from Microfluidic Droplets
Rohit Varshney1, Shubhra Sharma2, Bhanu Prakash1
1Habitat Centre, Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India.
Abstract:
Enzyme immobilization is an essential prerequisite for biocatalysis. In this context, emulsion provides an excellent template for assembling enzymes at the oil-water interface. A microfluidic approach has been adopted to produce oil-in-water-type emulsions stabilized by gold nanoparticle-catalase conjugates. In situ ring-opening polymerization of the oil phase produces solid core enzyme-immobilized microcapsules (MCs). These resultant MCs exhibited a K m value of 42 mM and shows 1.1-fold higher activity compared to free enzymes. Finally, the robust MCs showed excellent recyclability, which can meet the demand of industrial biotechnological applications.
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