Liquid chromatography has had a major impact on modern biochemistry and biotechnology. It is important to recognize that this is due, in large part, to advances in the material science of fabricating new separation media. This proposal is directed at a new concept for the fabrication of chromatography packing materials; the creation of complementary molecular images of proteins at surfaces. Complementary molecular images will be created for proteins of unknown structure. It is anticipated that only a portion of the surface will be imaged and that this may be varied by the imaging conditions. This conclusion is based on the fact that imaging will occur at the sorbent- protein interface and work which has established that a portion of the surface of a protein can dominate adsorption at surfaces. It is a further goal of this proposal to diminish the stagnant mobile phase mass transfer limitations of these imaged media to the point that they will achieve separations an order of magnitude faster than conventional chromatographic materials. This will be achieved by using i) a large amount of binding surface relative to the amount of analyte to overcome limitations in adsorption kinetics and ii) very high porosity supports that allow intraparticulate convective transport.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
5R01GM025431-19
Application #
2391855
Study Section
Metallobiochemistry Study Section (BMT)
Project Start
1978-07-01
Project End
1999-03-31
Budget Start
1997-04-01
Budget End
1999-03-31
Support Year
19
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Purdue University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
072051394
City
West Lafayette
State
IN
Country
United States
Zip Code
47907
Xu, W; Regnier, F E (1999) Electrokinetically-driven cation-exchange chromatography of proteins and its comparison with pressure-driven high-performance liquid chromatography. J Chromatogr A 853:243-56
Paliwal, S K; de Frutos, M; Regnier, F E (1996) Rapid separations of proteins by liquid chromatography. Methods Enzymol 270:133-51
Ratnayake, C K; Regnier, F E (1996) Study of protein binding to a silica support with a polymeric cation-exchange coating. J Chromatogr A 743:15-23
Ratnayake, C K; Regnier, F E (1996) Lateral interaction between electrostatically adsorbed and covalently immobilized proteins on the surface of cation-exchange sorbents. J Chromatogr A 743:25-32
Patterson, D H; Harmon, B J; Regnier, F E (1994) Electrophoretically mediated microanalysis of calcium. J Chromatogr A 662:389-95
Regehr, M F; Paliwal, S K; Regnier, F E (1994) Ensemble averaging and digital filtering in chromatography and electrophoresis. J Chromatogr A 659:247-53
Wu, D; Regnier, F E (1993) Native protein separations and enzyme microassays by capillary zone and gel electrophoresis. Anal Chem 65:2029-35
Harmon, B J; Patterson, D H; Regnier, F E (1993) Electrophoretically mediated microanalysis of ethanol. J Chromatogr A 657:429-34
de Frutos, M; Paliwal, S K; Regnier, F E (1993) Liquid chromatography based enzyme-amplified immunological assays in fused-silica capillaries at the zeptomole level. Anal Chem 65:2159-63
Harmon, B J; Patterson, D H; Regnier, F E (1993) Mathematical treatment of electrophoretically mediated microanalysis. Anal Chem 65:2655-62

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