Microfluidic-Assisted Fabrication of Clay Microgels for Cell-Free Protein Synthesis

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Abstract

Cell-free protein synthesis (CFPS) is a robust platform for the simple, rapid, and cost-effective in vitro production of proteins, as well as an important tool for cell-free synthetic biology research. Here, a microfluidic clay microgel system is reported, which creates compartmentalized microenvironments for CFPS capable of high-yield and repeated protein synthesis, as well as an artificial cell-like structure. As an advantageous platform for CFPS, a modular manner to prepare clay microgels with rationally designed functions is demonstrated: (i) gene/clay microgels enhance protein expression, (ii) gene/clay/magnetic nanoparticle microgels enable a repeated protein production system, and (iii) gene/clay microgels in microfluidic droplets serve as a cell-like structure. Beyond CFPS, considering the compatibility of clay microgels with hydrophilic functional materials, our clay microgels will provide a more general platform for preparing a variety of functional materials such as encapsulating drugs and cells, enabling more biomedical applications.

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