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Title: Modular microfluidics for point-of-care protein purifications

Abstract

Biochemical separations are the heart of diagnostic assays and purification methods for biologics. On-chip miniaturization and modularization of separation procedures will enable the development of customized, portable devices for personalized health-care diagnostics and point-of-use production of treatments. In this report, we describe the design and fabrication of miniature ion exchange, size exclusion and affinity chromatography modules for on-chip clean-up of recombinantly-produced proteins. Our results demonstrate that these common separations techniques can be implemented in microfluidic modules with performance comparable to conventional approaches. We introduce embedded 3-D microfluidic interconnects for integrating micro-scale separation modules that can be arranged and reconfigured to suit a variety of fluidic operations or biochemical processes. In conclusion, we demonstrate the utility of the modular approach with a platform for the enrichment of enhanced green fluorescent protein (eGFP) from Escherichia coli lysate through integrated affinity and size-exclusion chromatography modules.

Authors:
 [1];  [2];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Work for Others (WFO); Defense Advanced Research Projects Agency (DARPA)
OSTI Identifier:
1286752
Grant/Contract Number:  
AC05-00OR22725; HR001134005
Resource Type:
Accepted Manuscript
Journal Name:
Lab on a Chip
Additional Journal Information:
Journal Volume: 15; Journal Issue: 8; Journal ID: ISSN 1473-0197
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Millet, L. J., Lucheon, J. D., Standaert, R. F., Retterer, S. T., and Doktycz, M. J. Modular microfluidics for point-of-care protein purifications. United States: N. p., 2015. Web. doi:10.1039/C5LC00094G.
Millet, L. J., Lucheon, J. D., Standaert, R. F., Retterer, S. T., & Doktycz, M. J. Modular microfluidics for point-of-care protein purifications. United States. https://doi.org/10.1039/C5LC00094G
Millet, L. J., Lucheon, J. D., Standaert, R. F., Retterer, S. T., and Doktycz, M. J. Thu . "Modular microfluidics for point-of-care protein purifications". United States. https://doi.org/10.1039/C5LC00094G. https://www.osti.gov/servlets/purl/1286752.
@article{osti_1286752,
title = {Modular microfluidics for point-of-care protein purifications},
author = {Millet, L. J. and Lucheon, J. D. and Standaert, R. F. and Retterer, S. T. and Doktycz, M. J.},
abstractNote = {Biochemical separations are the heart of diagnostic assays and purification methods for biologics. On-chip miniaturization and modularization of separation procedures will enable the development of customized, portable devices for personalized health-care diagnostics and point-of-use production of treatments. In this report, we describe the design and fabrication of miniature ion exchange, size exclusion and affinity chromatography modules for on-chip clean-up of recombinantly-produced proteins. Our results demonstrate that these common separations techniques can be implemented in microfluidic modules with performance comparable to conventional approaches. We introduce embedded 3-D microfluidic interconnects for integrating micro-scale separation modules that can be arranged and reconfigured to suit a variety of fluidic operations or biochemical processes. In conclusion, we demonstrate the utility of the modular approach with a platform for the enrichment of enhanced green fluorescent protein (eGFP) from Escherichia coli lysate through integrated affinity and size-exclusion chromatography modules.},
doi = {10.1039/C5LC00094G},
journal = {Lab on a Chip},
number = 8,
volume = 15,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

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