Andrew L Zydney

Andrew L Zydney

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Andrew L Zydney

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Mass Balance Model with Donnan Equilibrium Accurately Describes Unusual pH and Excipient Profiles during Diafiltration of Monoclonal Antibodies.

Biotechnol J 2019 Jul 20;14(7):e1800517. Epub 2019 May 20.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16801, USA.

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http://dx.doi.org/10.1002/biot.201800517DOI Listing
July 2019

Impact of protein fouling on nanoparticle capture within the Viresolve® Pro and Viresolve® NFP virus removal membranes.

Biotechnol Bioeng 2019 May 13. Epub 2019 May 13.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania.

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http://dx.doi.org/10.1002/bit.27017DOI Listing
May 2019

Multistage continuous countercurrent diafiltration for formulation of monoclonal antibodies.

Biotechnol Prog 2019 Apr 4:e2810. Epub 2019 Apr 4.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania.

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http://dx.doi.org/10.1002/btpr.2810DOI Listing
April 2019

New insights into the performance characteristics of the Planova-series hollow-fiber parvovirus filters using confocal and electron microscopy.

Biotechnol Bioeng 2019 Apr 14. Epub 2019 Apr 14.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania.

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https://onlinelibrary.wiley.com/doi/abs/10.1002/bit.26991
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http://dx.doi.org/10.1002/bit.26991DOI Listing
April 2019

Purification of a conjugated polysaccharide vaccine using tangential flow diafiltration.

Biotechnol Bioeng 2019 Mar 31;116(3):591-597. Epub 2018 Dec 31.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania.

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http://doi.wiley.com/10.1002/bit.26867
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http://dx.doi.org/10.1002/bit.26867DOI Listing
March 2019

Hollow fiber countercurrent dialysis for continuous buffer exchange of high-value biotherapeutics.

Biotechnol Prog 2019 Mar 21;35(2):e2763. Epub 2018 Dec 21.

Dept. of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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http://doi.wiley.com/10.1002/btpr.2763
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http://dx.doi.org/10.1002/btpr.2763DOI Listing
March 2019

Effects of polyamines on the ultrafiltration of plasmid DNA.

Biotechnol Prog 2019 Mar 24;35(2):e2765. Epub 2018 Dec 24.

Dept. of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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https://onlinelibrary.wiley.com/doi/abs/10.1002/btpr.2765
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http://dx.doi.org/10.1002/btpr.2765DOI Listing
March 2019

Transport Characteristics of Asymmetric Cellulose Triacetate Hemodialysis Membranes.

Blood Purif 2018 22;45(1-3):46-52. Epub 2017 Nov 22.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, USA.

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http://dx.doi.org/10.1159/000480491DOI Listing
February 2019

Effects of Plasma Proteins on the Transport and Surface Characteristics of Polysulfone/Polyethersulfone and Asymmetric Cellulose Triacetate High Flux Dialyzers.

Artif Organs 2018 Nov 17;42(11):1070-1077. Epub 2018 May 17.

Department of Chemical Engineering, The Pennsylvania State University, State College, PA, USA.

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http://doi.wiley.com/10.1111/aor.13154
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http://dx.doi.org/10.1111/aor.13154DOI Listing
November 2018

Intermolecular interactions in highly concentrated formulations of recombinant therapeutic proteins.

Curr Opin Biotechnol 2018 10 23;53:59-64. Epub 2017 Dec 23.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, United States. Electronic address:

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http://dx.doi.org/10.1016/j.copbio.2017.12.016DOI Listing
October 2018

Slit pores preferred over cylindrical pores for high selectivity in biomolecular filtration.

J Colloid Interface Sci 2018 May 20;517:176-181. Epub 2017 Dec 20.

Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA.

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http://dx.doi.org/10.1016/j.jcis.2017.12.056DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5858979PMC
May 2018

Improving extraction and post-purification concentration of membrane proteins.

Analyst 2018 Mar;143(6):1378-1386

Department of Chemical Engineering, The Pennsylvania State University, Pennsylvania, USA.

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http://dx.doi.org/10.1039/c7an01470hDOI Listing
March 2018

Countercurrent staged diafiltration for formulation of high value proteins.

Biotechnol Bioeng 2018 Jan 6;115(1):139-144. Epub 2017 Oct 6.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania.

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http://dx.doi.org/10.1002/bit.26441DOI Listing
January 2018

Chemical Degradation of Polyacrylamide during Hydraulic Fracturing.

Environ Sci Technol 2018 Jan 19;52(1):327-336. Epub 2017 Dec 19.

Department of Civil and Environmental Engineering, ‡Department of Chemical Engineering, §Department of Material Science and Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.

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http://dx.doi.org/10.1021/acs.est.7b00792DOI Listing
January 2018

pH variations during diafiltration due to buffer nonidealities.

Biotechnol Prog 2017 11 4;33(6):1555-1560. Epub 2017 Sep 4.

Dept. of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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http://dx.doi.org/10.1002/btpr.2544DOI Listing
November 2017

Effect of zinc chloride and PEG concentrations on the critical flux during tangential flow microfiltration of BSA precipitates.

Biotechnol Prog 2017 11 4;33(6):1561-1567. Epub 2017 Sep 4.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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http://doi.wiley.com/10.1002/btpr.2545
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http://dx.doi.org/10.1002/btpr.2545DOI Listing
November 2017

Ultrafiltration behavior of monoclonal antibodies and Fc-fusion proteins: Effects of physical properties.

Biotechnol Bioeng 2017 09 18;114(9):2057-2065. Epub 2017 May 18.

Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802.

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http://dx.doi.org/10.1002/bit.26326DOI Listing
September 2017

Continuous countercurrent tangential chromatography for mixed mode post-capture operations in monoclonal antibody purification.

J Chromatogr A 2017 Aug 22;1511:37-44. Epub 2017 Jun 22.

Chromatan Corporation, 200 Innovation Blvd., Suite 260B, State College, PA 16803, United States. Electronic address:

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https://linkinghub.elsevier.com/retrieve/pii/S00219673173086
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http://dx.doi.org/10.1016/j.chroma.2017.06.018DOI Listing
August 2017

Silicon nanoporous membranes as a rigorous platform for validation of biomolecular transport models.

J Memb Sci 2017 Aug 17;536:44-51. Epub 2017 Apr 17.

Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, California, USA.

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http://dx.doi.org/10.1016/j.memsci.2017.04.030DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5604868PMC
August 2017

Effects of Histidine and Sucrose on the Biophysical Properties of a Monoclonal Antibody.

Pharm Res 2017 03 29;34(3):629-639. Epub 2016 Dec 29.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA.

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http://link.springer.com/10.1007/s11095-016-2092-0
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http://dx.doi.org/10.1007/s11095-016-2092-0DOI Listing
March 2017

Effects of solution conditions on characteristics and size exclusion chromatography of pneumococcal polysaccharides and conjugate vaccines.

Carbohydr Polym 2016 Nov 25;152:12-18. Epub 2016 Jun 25.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, United States. Electronic address:

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http://dx.doi.org/10.1016/j.carbpol.2016.06.095DOI Listing
November 2016

Effect of electrostatic interactions on the ultrafiltration behavior of charged bacterial capsular polysaccharides.

Biotechnol Prog 2016 11 21;32(6):1531-1538. Epub 2016 Oct 21.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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http://doi.wiley.com/10.1002/btpr.2367
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http://dx.doi.org/10.1002/btpr.2367DOI Listing
November 2016

Concentrating membrane proteins using ultrafiltration without concentrating detergents.

Biotechnol Bioeng 2016 10 28;113(10):2122-30. Epub 2016 Mar 28.

Department of Chemical Engineering, The Pennsylvania State University, 155 Fenske Laboratory, University Park, Pennsylvania, 16802.

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http://dx.doi.org/10.1002/bit.25973DOI Listing
October 2016

Effects of solution conditions on virus retention by the Viresolve® NFP filter.

Biotechnol Prog 2015 Sep-Oct;31(5):1280-6. Epub 2015 Jun 25.

Dept. of Bioproduct Research, Eli Lilly and Company, Indianapolis, IN, 46285.

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http://dx.doi.org/10.1002/btpr.2125DOI Listing
August 2016

Fouling of microfiltration membranes by flowback and produced waters from the Marcellus shale gas play.

Water Res 2016 08 26;99:162-170. Epub 2016 Apr 26.

Department of Civil and Environmental Engineering, The Pennsylvania State University, Fenske Laboratory, University Park, PA, 16802, United States; Department of Chemical Engineering, The Pennsylvania State University, Fenske Laboratory, University Park, PA, 16802, United States. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2016.04.049DOI Listing
August 2016

Size-based separation of supercoiled plasmid DNA using ultrafiltration.

J Colloid Interface Sci 2016 Jun 25;472:195-201. Epub 2016 Mar 25.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, United States. Electronic address:

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http://dx.doi.org/10.1016/j.jcis.2016.03.054DOI Listing
June 2016

Ultrafiltration of highly concentrated antibody solutions: Experiments and modeling for the effects of module and buffer conditions.

Biotechnol Prog 2016 05 17;32(3):692-701. Epub 2016 May 17.

Dept. of Chemical Engineering, the Pennsylvania State University, University Park, PA, 16802.

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http://dx.doi.org/10.1002/btpr.2252DOI Listing
May 2016

Enhanced purification of plasmid DNA isoforms by exploiting ionic strength effects during ultrafiltration.

Biotechnol Bioeng 2016 Apr 29;113(4):783-9. Epub 2015 Sep 29.

Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, Pennsylvania.

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http://doi.wiley.com/10.1002/bit.25836
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http://dx.doi.org/10.1002/bit.25836DOI Listing
April 2016

Continuous downstream processing for high value biological products: A Review.

Authors:
Andrew L Zydney

Biotechnol Bioeng 2016 Mar 27;113(3):465-75. Epub 2015 Aug 27.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802.

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http://dx.doi.org/10.1002/bit.25695DOI Listing
March 2016

Performance optimization of continuous countercurrent tangential chromatography for antibody capture.

Biotechnol Prog 2016 03 17;32(2):430-9. Epub 2016 Mar 17.

Chromatan Corporation, 200 Innovation Blvd, Suite 260B, State College, PA, 16803.

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http://dx.doi.org/10.1002/btpr.2250DOI Listing
March 2016

Effects of chemical sanitization using NaOH on the properties of polysulfone and polyethersulfone ultrafiltration membranes.

Biotechnol Prog 2015 Jan-Feb;31(1):90-6. Epub 2014 Nov 13.

Dept. of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802.

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http://dx.doi.org/10.1002/btpr.2008DOI Listing
December 2015

Probing effects of pressure release on virus capture during virus filtration using confocal microscopy.

Biotechnol Bioeng 2015 Oct 12;112(10):2115-22. Epub 2015 May 12.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 6802.

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http://doi.wiley.com/10.1002/bit.25614
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http://dx.doi.org/10.1002/bit.25614DOI Listing
October 2015

Intermolecular Interactions and the Viscosity of Highly Concentrated Monoclonal Antibody Solutions.

Pharm Res 2015 Sep 2;32(9):3102-9. Epub 2015 Apr 2.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA.

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http://link.springer.com/10.1007/s11095-015-1690-6
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http://dx.doi.org/10.1007/s11095-015-1690-6DOI Listing
September 2015

Internal virus polarization model for virus retention by the Ultipor(®) VF Grade DV20 membrane.

Biotechnol Prog 2014 Jul-Aug;30(4):856-63. Epub 2014 Apr 2.

Pall Europe Ltd., 5 Harbourgate Business Park, Portsmouth, PO6 4BQ, U.K.

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http://dx.doi.org/10.1002/btpr.1897DOI Listing
March 2015

Recovery of small dye molecules from aqueous solutions using charged ultrafiltration membranes.

J Hazard Mater 2015 Mar 30;284:58-64. Epub 2014 Oct 30.

School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.

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http://dx.doi.org/10.1016/j.jhazmat.2014.10.031DOI Listing
March 2015

The osmotic pressure of highly concentrated monoclonal antibody solutions: effect of solution conditions.

Biotechnol Bioeng 2014 Mar 16;111(3):529-36. Epub 2013 Sep 16.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802.

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http://dx.doi.org/10.1002/bit.25104DOI Listing
March 2014

Effects of a pressure release on virus retention with the Ultipor DV20 membrane.

Biotechnol Bioeng 2014 Mar 25;111(3):545-51. Epub 2013 Sep 25.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802.

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http://dx.doi.org/10.1002/bit.25112DOI Listing
March 2014

Intermolecular interactions during ultrafiltration of pegylated proteins.

Biotechnol Prog 2013 May-Jun;29(3):655-63. Epub 2013 Mar 29.

Dept. of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.

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http://dx.doi.org/10.1002/btpr.1709DOI Listing
January 2014

Improved method for evaluating the dead volume and protein-protein interactions by self-interaction chromatography.

Anal Chem 2013 Oct 12;85(19):9101-6. Epub 2013 Sep 12.

Department of Chemical Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.

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http://dx.doi.org/10.1021/ac4017242DOI Listing
October 2013

Protein A chromatography at high titers.

Biotechnol Bioeng 2013 Sep 22;110(9):2445-51. Epub 2013 Apr 22.

EMD Millipore Corporation, 900 Middlesex Turnpike, Billerica, MA 01821, USA.

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http://dx.doi.org/10.1002/bit.24902DOI Listing
September 2013

Separation of plasmid DNA isoforms using centrifugal ultrafiltration.

Biotechniques 2012 Jul;53(1):49-56

Department of Chemical Engineering, Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.2144/0000113890DOI Listing
July 2012

Separation of plasmid DNA isoforms by highly converging flow through small membrane pores.

J Colloid Interface Sci 2011 May 15;357(2):548-53. Epub 2011 Feb 15.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://linkinghub.elsevier.com/retrieve/pii/S002197971100189
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http://dx.doi.org/10.1016/j.jcis.2011.02.029DOI Listing
May 2011

Purification of singly PEGylated α-lactalbumin using charged ultrafiltration membranes.

Biotechnol Bioeng 2011 Apr 17;108(4):822-9. Epub 2010 Nov 17.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.1002/bit.22991DOI Listing
April 2011

Countercurrent tangential chromatography for large-scale protein purification.

Biotechnol Bioeng 2011 Mar 22;108(3):582-91. Epub 2010 Nov 22.

Chromatan, Inc., Dedham, MA, USA.

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http://doi.wiley.com/10.1002/bit.22960
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http://dx.doi.org/10.1002/bit.22960DOI Listing
March 2011

Role of electrostatic interactions during protein ultrafiltration.

Adv Colloid Interface Sci 2010 Oct 14;160(1-2):40-8. Epub 2010 Jul 14.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.1016/j.cis.2010.07.002DOI Listing
October 2010

Radius of gyration of plasmid DNA isoforms from static light scattering.

Biotechnol Bioeng 2010 Sep;107(1):134-42

Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, USA.

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http://doi.wiley.com/10.1002/bit.22787
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http://dx.doi.org/10.1002/bit.22787DOI Listing
September 2010

Characterizing the surface charge of synthetic nanomembranes by the streaming potential method.

J Colloid Interface Sci 2010 Aug 14;348(1):85-95. Epub 2010 Apr 14.

Department of Mechanical Engineering, The Ohio State University, 201 West 19th Avenue, Columbus, OH 43210, USA.

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http://dx.doi.org/10.1016/j.jcis.2010.04.017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2900191PMC
August 2010

Permeability - Selectivity Analysis for Ultrafiltration: Effect of Pore Geometry.

J Memb Sci 2010 Mar;349(1-2):405

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802.

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http://dx.doi.org/10.1016/j.memsci.2009.12.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821117PMC
March 2010

Solute partitioning and filtration by extracellular matrices.

Am J Physiol Renal Physiol 2009 Oct 8;297(4):F1092-100. Epub 2009 Jul 8.

Biomedical Engineering/ND20, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195, USA.

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http://dx.doi.org/10.1152/ajprenal.00162.2009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2775571PMC
October 2009

Size exclusion chromatography of plasmid DNA isoforms.

J Chromatogr A 2009 Aug 15;1216(35):6295-302. Epub 2009 Jul 15.

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, United States.

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http://dx.doi.org/10.1016/j.chroma.2009.07.009DOI Listing
August 2009

Membrane technology for purification of therapeutic proteins.

Authors:
Andrew L Zydney

Biotechnol Bioeng 2009 Jun;103(2):227-30

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1002/bit.22308DOI Listing
June 2009

Modeling electrostatic exclusion effects during ion exchange chromatography of monoclonal antibodies.

Biotechnol Bioeng 2009 Mar;102(4):1131-40

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1002/bit.22145DOI Listing
March 2009

High-Performance Silicon Nanopore Hemofiltration Membranes.

J Memb Sci 2009 Jan;326(1):58-63

Departments of Nephrology and Hypertension, Cleveland Clinic, Cleveland, Ohio.

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http://dx.doi.org/10.1016/j.memsci.2008.09.039DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2607036PMC
January 2009

Effect of solution pH on protein transmission and membrane capacity during virus filtration.

Biotechnol Bioeng 2008 May;100(1):108-17

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1002/bit.21735DOI Listing
May 2008

Separation of PEGylated alpha-lactalbumin from unreacted precursors and byproducts using ultrafiltration.

Biotechnol Prog 2007 Nov-Dec;23(6):1417-24. Epub 2007 Oct 3.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1021/bp070243wDOI Listing
March 2008

Salt-induced changes in plasmid DNA transmission through ultrafiltration membranes.

Biotechnol Bioeng 2008 Feb;99(2):390-8

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1002/bit.21575DOI Listing
February 2008

Performance characteristics of nanoporous carbon membranes for protein ultrafiltration.

Biotechnol Prog 2007 Sep-Oct;23(5):1157-62. Epub 2007 Sep 12.

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1021/bp0701766DOI Listing
January 2008

Protein fouling of virus filtration membranes: effects of membrane orientation and operating conditions.

Biotechnol Prog 2006 Jul-Aug;22(4):1163-9

Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, USA.

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http://dx.doi.org/10.1021/bp050350vDOI Listing
October 2007

Ficoll is not a rigid sphere.

Am J Physiol Renal Physiol 2007 Oct 25;293(4):F1209-13. Epub 2007 Jul 25.

Department of Nephrology and Hypertension, The Cleveland Clinic, Cleveland, OH 44195, USA.

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http://dx.doi.org/10.1152/ajprenal.00097.2007DOI Listing
October 2007

In vitro comparison of peracetic acid and bleach cleaning of polysulfone hemodialysis membranes.

Artif Organs 2007 Jun;31(6):452-60

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.1111/j.1525-1594.2007.00387.xDOI Listing
June 2007

Ultrafiltration characteristics of pegylated proteins.

Biotechnol Bioeng 2006 Oct;95(3):474-82

Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, USA.

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http://dx.doi.org/10.1002/bit.21020DOI Listing
October 2006

Effect of membrane charge on flow and protein transport during ultrafiltration.

Biotechnol Prog 2006 Mar-Apr;22(2):484-92

Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, USA.

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http://dx.doi.org/10.1021/bp050324xDOI Listing
June 2006

Phosphate clearance for bleach reprocessed polysulfone hemodialyzers: effects of electrostatic interactions.

ASAIO J 2005 Nov-Dec;51(6):748-53

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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March 2006

Clarification of yeast cell suspensions by depth filtration.

Biotechnol Prog 2005 Sep-Oct;21(5):1552-7

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1021/bp0500821DOI Listing
February 2006

Controlling protein transport in ultrafiltration using small charged ligands.

Biotechnol Bioeng 2005 Sep;91(6):733-42

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.1002/bit.20543DOI Listing
September 2005

Effect of peracetic acid reprocessing on the transport characteristics of polysulfone hemodialyzers.

Artif Organs 2005 Feb;29(2):166-73

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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http://dx.doi.org/10.1111/j.1525-1594.2005.29028.xDOI Listing
February 2005

Separation of protein charge variants by ultrafiltration.

Biotechnol Prog 2004 Mar-Apr;20(2):543-9

Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.

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http://dx.doi.org/10.1021/bp034264bDOI Listing
December 2004

Effect of bleach reprocessing upon the clearance characteristics and surface charge of polysulfone hemodialyzers.

ASAIO J 2004 May-Jun;50(3):246-52

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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December 2004

Optimization of ultrafiltration/diafiltration processes for partially bound impurities.

Biotechnol Bioeng 2004 Aug;87(3):286-92

Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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http://dx.doi.org/10.1002/bit.20113DOI Listing
August 2004

Retention of small charged impurities during ultrafiltration.

Biotechnol Bioeng 2004 Jul;87(1):7-13

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802.

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http://doi.wiley.com/10.1002/bit.20009
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http://dx.doi.org/10.1002/bit.20009DOI Listing
July 2004

Effect of electrostatic, hydrodynamic, and Brownian forces on particle trajectories and sieving in normal flow filtration.

J Colloid Interface Sci 2004 Jan;269(2):425-31

Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

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January 2004

Use of protein charge ladders to study electrostatic interactions during protein ultrafiltration.

Biotechnol Bioeng 2004 Jan;85(2):166-76

Department of Chemical Engineering, University of Delaware, Newark, Delaware.

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http://dx.doi.org/10.1002/bit.10792DOI Listing
January 2004

Effect of membrane morphology on system capacity during normal flow microfiltration.

Biotechnol Bioeng 2003 Sep;83(5):537-43

Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania, USA.

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http://dx.doi.org/10.1002/bit.10699DOI Listing
September 2003

Separation of alpha-lactalbumin and beta-lactoglobulin using membrane ultrafiltration.

Biotechnol Bioeng 2003 Jul;83(2):201-9

Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.

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http://dx.doi.org/10.1002/bit.10659DOI Listing
July 2003

Application of a pore-blockage--cake-filtration model to protein fouling during microfiltration.

Biotechnol Bioeng 2002 Aug;79(3):260-70

Department of Thermodynamics and Applied Physics, University of Valladolid, Spain.

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http://dx.doi.org/10.1002/bit.10283DOI Listing
August 2002

Affinity ultrafiltration: effects of ligand binding on selectivity and process optimization.

Biotechnol Bioeng 2002 Feb;77(3):256-65

Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.

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February 2002