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Title: Towards microfluidic reactors for cell-free protein synthesis at the point-of-care

Journal Article · · Small
 [1];  [2];  [1];  [2];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Cell-free protein synthesis (CFPS) is a powerful technology that allows for optimization of protein production without maintenance of a living system. Integrated within micro- and nano-fluidic architectures, CFPS can be optimized for point-of care use. Here, we describe the development of a microfluidic bioreactor designed to facilitate the production of a single-dose of a therapeutic protein, in a small footprint device at the point-of-care. This new design builds on the use of a long, serpentine channel bioreactor and is enhanced by integrating a nanofabricated membrane to allow exchange of materials between parallel reactor and feeder channels. This engineered membrane facilitates the exchange of metabolites, energy, and inhibitory species, prolonging the CFPS reaction and increasing protein yield. Membrane permeability can be altered by plasma-enhanced chemical vapor deposition and atomic layer deposition to tune the exchange rate of small molecules. This allows for extended reaction times and improved yields. Further, the reaction product and higher molecular weight components of the transcription/translation machinery in the reactor channel can be retained. As a result, we show that the microscale bioreactor design produces higher protein yields than conventional tube-based batch formats, and that product yields can be dramatically improved by facilitating small molecule exchange within the dual-channel bioreactor.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Work for Others (WFO)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1238743
Journal Information:
Small, Vol. 12, Issue 6; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (18)

Cell-free production of a therapeutic protein: Expression, purification, and characterization of recombinant streptokinase using a CHO lysate journal October 2017
Cell‐free protein synthesis: The transition from batch reactions to minimal cells and microfluidic devices journal January 2020
Tuning of salt separation efficiency by flow rate control in microfluidic dynamic dialysis journal September 2019
Interplay between materials and microfluidics journal April 2017
On-chip manufacturing of synthetic proteins for point-of-care therapeutics journal March 2019
Cell-free gene expression: an expanded repertoire of applications journal November 2019
High-yield production of “difficult-to-express” proteins in a continuous exchange cell-free system based on CHO cell lysates journal September 2017
Partitioning of hydrogels in 3D-printed microchannels journal January 2019
Flexible on-demand cell-free protein synthesis platform based on a tube-in-tube reactor journal January 2020
Integration of cell-free protein synthesis and purification in one microfluidic chip for on-demand production of recombinant protein journal September 2018
Cell-Free Synthetic Biology: Engineering Beyond the Cell journal October 2016
Streptokinase: An Efficient Enzyme in Cardiac Medicine journal January 2020
Application of Cell-Free Protein Synthesis for Faster Biocatalyst Development journal February 2019
Microfluidic Devices for Drug Delivery Systems and Drug Screening journal February 2018
Cell-Free Approaches in Synthetic Biology Utilizing Microfluidics journal March 2018
A User’s Guide to Cell-Free Protein Synthesis journal March 2019
Cell-Free Synthetic Biology Platform for Engineering Synthetic Biological Circuits and Systems journal May 2019
Application of cell-free protein synthesis for faster biocatalyst development text January 2019

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