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Title: Methods for separation of polymeric compounds

Patent ·
OSTI ID:1531555

Recently two techniques using free solution electrophoresis to separate charged-uncharged polymer conjugates have proven successful: End Labeled Free Solution Electrophoresis (ELFSE) for DNA sequencing, and Free Solution Conjugate Electrophoresis (FSCE) for molar mass profiling of uncharged polymers. Previous attempts have been made to analyze experimental data generated by these new techniques for the electrophoresis of molecules with varying charge distributions. However, the importance of the ends of the polymers in determining the polymer's overall mobility was neglected in previous work. Through a careful investigation and a reanalysis of the experimental data, it is determined here that this “end effect” critically impacts the behavior of polymers and charged-uncharged polymer conjugates during electrophoresis. In this way, the invention provides for methods that exploit this “end effect” for the separation of polymeric molecules on the basis of size, including for example DNA separation and sequencing techniques.

Research Organization:
Univ. of Ottawa, Ottawa, CA (United States); Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-99ER62789
Assignee:
University of Ottawa (Ottawa, CA); Northwestern University (Evanston, IL)
Patent Number(s):
7,371,533
Application Number:
11/241,990
OSTI ID:
1531555
Resource Relation:
Patent File Date: 2005-10-04
Country of Publication:
United States
Language:
English

References (36)

End-label, free-solution capillary electrophoresis of highly charged oligosaccharides journal November 1995
A very thin coating for capillary zone electrophoresis of proteins based on a tri(ethylene glycol)-terminated alkyltrichlorosilane journal February 2004
The molecular end effect and its critical impact on the behavior of charged-uncharged polymer conjugates during free-solution electrophoresis journal May 2005
A new concept for sequencing DNA by capillary electrophoresis journal January 1992
Free-solution electrophoresis of DNA modified with drag-tags at both ends journal May 2006
A Zimm model for polyelectrolytes in an electric field journal November 1996
A New Cloning Method for the Preparation of Long Repetitive Polypeptides without a Sequence Requirement journal October 2002
Branched polymeric labels used as drag-tags in free-solution electrophoresis of ssDNA journal November 2005
The free solution mobility of DNA journal November 1997
Electrophoresis of polyampholytes journal January 1998
Characterization of Glutamine Deamidation in a Long, Repetitive Protein Polymer via Bioconjugate Capillary Electrophoresis journal March 2004
End-Label Free-Solution Electrophoresis of the Low Molecular Weight Heparins journal August 1997
Electrophoresis of the nucleic acids journal June 1964
Molar Mass Profiling of Synthetic Polymers by Free-Solution Capillary Electrophoresis of DNA−Polymer Conjugates journal March 2001
Application of capillary electrophoresis to the analysis of the oligomeric distribution of polydisperse polymers journal August 1993
Multiplexed, High-Throughput Genotyping by Single-Base Extension and End-Labeled Free-Solution Electrophoresis journal September 2002
DNA mobility modifier patent-application May 2003
Protein polymer drag-tags for DNA separations by end-labeled free-solution electrophoresis journal June 2005
Simultaneous Action of Electric Fields and Nonelectric Forces on a Polyelectrolyte: Motion and Deformation journal May 1996
A new concept for separating nucleic acids by electrophoresis in solution using hybrid synthetic end labelled-nucleic acid molecules journal January 1993
Comblike, Monodisperse Polypeptoid Drag-Tags for DNA Separations by End-Labeled Free-Solution Electrophoresis (ELFSE) journal July 2005
End-labeled free-solution electrophoresis of DNA journal January 2005
Free-solution electrophoresis of DNA journal May 1998
Screening for genetic mutations journal March 1996
Electrophoresis of Composite Molecular Objects. 2. Competition between Sieving and Frictional Effects in Polymer Solutions journal July 2001
Critical factors for high-performance physically adsorbed (dynamic) polymeric wall coatings for capillary electrophoresis of DNA journal August 2002
A theoretical study of the possible use of electroosmotic flow to extend the read length of DNA sequencing by end-labeled free solution electrophoresis journal May 2006
Electrophoretic mobility of composite objects in free solution: Application to DNA separation journal January 1996
Profiling Solid-Phase Synthesis Products by Free-Solution Conjugate Capillary Electrophoresis journal May 2002
Theory of DNA Sequencing Using Free-Solution Electrophoresis of Protein-DNA Complexes journal May 1994
Tandem Isotachophoresis-Zone Electrophoresis via Base-Mediated Destacking for Increased Detection Sensitivity in Microfluidic Systems journal July 2003
Electrophoresis of Composite Molecular Objects. 1. Relation between Friction, Charge, and Ionic Strength in Free Solution journal January 2001
Separating DNA sequencing fragments without a sieving matrix journal August 1999
Efficient method for the preparation of peptoids [oligo(N-substituted glycines)] by submonomer solid-phase synthesis journal December 1992
Capillary electrophoretic separation of uncharged polymers using polyelectrolyte engines journal July 2001
Mobilities of Labeled and Unlabeled Single-Stranded DNA in Free Solution Electrophoresis journal November 1995

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