Best Practices for DNA Template Preparation towards Improved Reproducibility in Cell-Free Protein Production -- Simple Extract Preparation Methods for E. coli-Based Cell-Free Expression -- Preparation and Screening of Cell-Free Extract from Non-Growing Escherichia coli A19 Cells -- Cell-Free Protein Synthesis Using Pichia pastoris -- A Streptomyces-Based Cell-Free Protein Synthesis System for High-Level Protein Expression -- In Vitro Reconstitution Platforms of Mammalian Cell-Free Expressed Membrane Proteins -- High-Throughput Experimentation Using Cell-Free Protein Synthesis Systems -- Cell-Free Gene Expression from DNA Brushes -- Efficient and Precise Protein Synthesis in a Cell-Free System Using a Set of In Vitro Transcribed tRNAs with Nucleotide Modifications -- Measurement of Transcription, Translation, and Other Enzymatic Processes during Cell-Free Expression Using PERSIA -- Cell-Free Noncanonical Redox Cofactor Systems -- Cell-Free Protein Synthesis for High-Throughput Biosynthetic Pathway Prototyping -- Metabolomics Analysis of Cell-Free Expression Systems Using Gas Chromatography-Mass Spectrometry -- Liposome Preparation by 3D-Printed Microcapillary-Based Apparatus -- Microfluidic Production of Porous Polymer Cell-Mimics Capable of Gene Expression -- Cell-Free Membrane Protein Expression into Hybrid Lipid/Polymer Vesicles -- Cell-Free Synthesis Strategies to Probe Co-Translational Folding of Proteins within Lipid Membranes -- Assembly of RNA Nanostructures from Double Crossover Tiles -- Cell-Free Biosensors and AI Integration -- ROSALIND: Rapid Detection of Chemical Contaminants with In Vitro Transcription Factor-Based Biosensors -- Optical Sensing in Cell-Free Expression -- Cell-Free Paper-Based Analysis of Gut Microbiota and Host Biomarkers -- Detection of Norovirus Using Paper-Based Cell-Free Systems -- A TXTL-Based Assay to Rapidly Identify PAMs for CRISPR-Cas Systems with Multi-Protein Effector Complexes -- Implementing Hands-On Molecular and Synthetic Biology Education Using Cell-Free Technology.

This detailed volume explores perspectives and methods using cell-free expression (CFE) to enable next-generation synthetic biology applications. The first section focuses on tools for CFE systems, including a primer on DNA handling and reproducibility, as well as methods for cell extract preparation from diverse organisms and enabling high-throughput cell-free experimentation. The second section provides an array of applications for CFE systems, such as metabolic engineering, membrane-based and encapsulated CFE, cell-free sensing and detection, and educational kits. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Cell‐Free Gene Expression: Methods and Protocols serves as an ideal guide for researchers seeking technical methods to current aspects of CFE and related applications.