High-throughput screening of biomolecules using cell-free gene expression systems

Area of Science:

• Biotechnology
• Molecular Biology
• Biochemistry

Background:

• Cell-free transcription and translation systems facilitate *in situ* and on-demand expression of peptides and proteins.
• Integration with microfluidic technology enables rapid screening, directed evolution, and selection of biomolecules in small volumes.

Purpose of the Study:

• To review the development of cell-free high-throughput screening (CF-HTS) methods.
• To discuss the operating principles and applications of CF-HTS technologies.
• To explore future advancements in CF-HTS.

Main Methods:

• Review of existing literature on cell-free high-throughput screening.
• Classification of CF-HTS into *in vitro* display and on-chip technologies.
• Discussion of principles and representative applications.

Main Results:

• Cell-free methods coupled with microfluidics allow efficient screening and evolution of biomolecules.
• CF-HTS applications are broadly categorized into *in vitro* display and on-chip technologies.
• Current methods offer rapid, on-demand expression and selection capabilities.

Conclusions:

• Cell-free high-throughput screening is a powerful tool for biomolecular discovery and engineering.
• Future advancements may arise from novel cell-free systems, miniaturization, and automation.
• Continued development promises to enhance the efficiency and scope of biomolecule selection.