Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7892409 | System for pH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH. ... | 02/22/2011 |
| 7871507 | Medium for enhanced staining of single strand nucleic acids in electrophoresis A medium is provided, being adapted to be applied in electrophoretic separation of nucleic acids. The medium comprises a staining reagent adapted to stain nucleic acids. Said medium further comprises a urea derivative, adapted to interact with said staining reagent ... | 01/18/2011 |
| 7347922 | Multi-dimensional proteomic analysis method A multi-dimensional proteomic analysis method utilizing cationic electrophoresis is described. The method includes separating proteins in one direction using cationic electrophoresis and separating the proteins in a second orthogonal direction using other electropho... | 03/25/2008 |
| 7297244 | Capillary electrophoresis systems and additives Capillary electrophoresis systems, reagents, and processes for analyzing a sample which includes at least one protein constituent are disclosed. The processes involve introducing the sample into a capillary tube containing a buffer system, wherein said buffer system... | 11/20/2007 |
| 7175747 | Method for electrophoretically separating membrane proteins The one and two-dimensional separation of proteins extending through the membrane (membrane proteins) is a prerequisite for a complete analysis of the proteome of a functionally intact cell organelle. A substantial drawback of prior art methods for separating is tha... | 02/13/2007 |
| 7163610 | Conductive media for electrophoresis A series of low molarity conductive media based on non-buffering univalent cations, such as sodium chloride-sodium acetate (SCA), sodium boric acid (SB), lithium boric acid, and lithium acetate mitigate the “runaway” positive feedback heating loop produced by co... | 01/16/2007 |
| 7147762 | Method of electrophoresis The present invention relates a method of electrophoretic separation of protein and/or peptide components of a sample in a convection stabilized medium. More specifically, the method comprises the steps to contact the sample with the separation medium; to apply a vo... | 12/12/2006 |
| 7141153 | pK-matched running buffers for gel electrophoresis pK-matched buffers, each containing two effective buffering components: one weak base and one weak acid which have similar pKa at 25° C. (within 0.3 pK units). On agarose gels, the buffers in various concentrations were tested for separation of double-st... | 11/28/2006 |
| 7141152 | Analyte species separation system A analyte species separation system including a fluid flow field disposed between confining surfaces, the flow field having a first flow component flowing in a first direction and a second flow component flowing in a second, transverse, direction, and an electric fi... | 11/28/2006 |
| 7056426 | Pre-cast electrophoresis slab gels with extended storage life In pre-cast slab gel cassettes, the formation of pathways in which proteins can migrate between the gel and the walls of the cassette to form shadow bands is avoided by including a nonionic amphiphilic polymer in the monomer solution from which the gel is formed and... | 06/06/2006 |
| 6953520 | Capillary electrophoresis probes and method A novel class of capillary electrophoresis probes and a method of employing the same are described. The novel class of capillary electrophoresis probes are comprised of one or more vinylogous carboxylic acid compounds or their derivatives. In another aspect of the p... | 10/11/2005 |
| 6939453 | Electrophoresis process using ionic liquids Highly hydrophobic compounds and hydrophobic proteins are solubilized in a non-aqueous solvent containing an electrolyte for electrophoretic separation. The non-aqueous solvent is an ionic liquid or a mixture of an organic solvent containing an ionic liquid in an am... | 09/06/2005 |
| 6726821 | Polyacrylamide precast gels for electrophoresis, process for producing the same and electroporesis method by using the gels A precast acrylamide electrophoresis gel is disclosed, which includes a gel buffer solution containing either Tris and glycine or Tris, glycine and any one or more than two of ampholytes, and a monobasic acid, titrated to a specified pH range. With the gels constitu... | 04/27/2004 |
| 6366795 | Biomedical electrode with vital skin penetration An electrolyte (70) for use in a single-use biomedical electrode assembly (A, B, C, D) designed for receiving body-generated electrical signals at a patient's skin surface includes: Component Range (%) Skin... | 04/02/2002 |
| 6162338 | System for pH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.... | 12/19/2000 |
| 6143154 | System for PH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein the gel buffer has an approximately neutral pH.... | 11/07/2000 |
| 6096182 | System for pH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.... | 08/01/2000 |
| 6090252 | Buffer system for electrophoresis and use thereof A buffer system for conducting discontinuous polyacrylamide gel electrophoresis comprises a separation gel buffer solution, an anodic electrode solution and a cathodic electrode solution. According to the invention, the separation gel buffer contains a ba... | 07/18/2000 |
| 6059948 | System for pH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.... | 05/09/2000 |
| 5964999 | Methods for profiling oligosaccharides released from glycoproteins Methods for profiling oligosaccharides released from glycoproteins and methods for the electrophoretic separation of high mannose, complex and hybrid oligosaccharides are disclosed. The methods include first providing an analytical sample which includes a... | 10/12/1999 |
| 5922185 | System for pH-neutral stable electrophoresis gel A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.... | 07/13/1999 |
| 5849166 | Electrophoresis of nucleic acid fragments A method for electrophoresis of nucleic acid fragments present in the solution which contains an amount, e.g., 0.2% or more, of a reagent, e.g., glycerol, dithiolthreitol (DTT) and trehalose or other sugars, which interact to form a complex with borate or... | 12/15/1998 |
| 5817225 | Electrophoresis system for the purification, concentration and size fractionation of nucleic acids The present invention is an electrophoretic unit for the purification, concentration, and size fractionation of nucleic acids contaminated by organic acids, such as humic acids. The electrophoretic unit includes a counter ion, Bis (2-hydroxyethyl)-imino-t... | 10/06/1998 |
| 5614072 | Increased efficiency of electrophoretic separations by mobility matching The invention concerns electrophoresis and methods and electrolyte compositions for decoupling or isolating the dual functions of the electrolyte composition in order to increase separation selectivity or reduce electromigration dispersion, or both. An el... | 03/25/1997 |
| 5569364 | Separation media for electrophoresis Separation media for electrophoresis, and methods of filling and flushing of electrophoretic devices such as capillaries are described. By preparing submicron to above-micron sized cross-linked gel particles and using gel swelling equilibrium concepts, su... | 10/29/1996 |
| 5447612 | Buffering system and its use in electrophoretic processes A novel pH buffering system which is functionally stable under electrophoretic conditions employs buffering components in complementary buffer pairs. The buffering components are selected from among simple chemically defined ampholytes, weak acids and wea... | 09/05/1995 |
| 5407546 | Method for high-resolution two-dimensional electrophoresis and device for carrying out the same For high-resolution two-dimensional electrophoresis comprising the steps of carrying out, on a gel base, at first a first separation process in a first direction and then a second separation process in a direction vertical to the first direction by a tech... | 04/18/1995 |
| 5354442 | Matrix modification in the electrophoretic separation of nucleic acids The present invention is a method for enhancing the separation of polynucleotides or polypeptides of various chain lengths or a mixture of polynucleotides and polypeptides of various chain lengths using electrophoretic processes to sharpen sample componen... | 10/11/1994 |
| 5340453 | Analysis of carbohydrates Carbohydrate substances are separated or distinguished by a method which involves labelling carbohydrate substances with a labelling reagent comprising a fluorescent naphthalene ring structure having as a substituent a reactive group capable of reacting w... | 08/23/1994 |
| 5320727 | Electrophoresis A method of separating or distinguishing proteins by isoelectric focusing (IEF), comprises fluorescently labelling proteins by reacting monobromobimane or monochlorobimane with free sylphydryl groups of proteins, and subjecting the labelled proteins to is... | 06/14/1994 |
| 5314595 | Electrophoresis of nucleic acid fragments A method for electrophoresis of nucleic acid fragments present in the solution which contains an amount, e.g., 0.2% or more, of a reagent, e.g., glycerol, dithiothreitol (DTT) and trehalose or other sugars, which interact to form a complex with borate or ... | 05/24/1994 |
| 5275708 | Cetyltrimethylammonium bromide gel electrophoresis A discontinuous polyacrylamide and agarose gel electrophoresis system is provided which allows the fine separation of proteins based on molecular weight with the concomitant retention of native enzymatic activity. This system, referred to as the CAT gel, ... | 01/04/1994 |
| 5264098 | Method for the separation, identification and quantification of isoenzymes and isoforms of alkaline phosphatase The invention essentially relates to a method for the separation, identification and quantification of the isoenzymes and isoforms of alkaline phosphatase in samples of physiological fluid or tissue extracts, in which method a buffer, at least one nonioni... | 11/23/1993 |
| 5246558 | Method for the separation of glycosylated hemoglobin Hb A1c by agarose gel electrophoresis According to the invention, an agarose gel containing chondroitin sulfate is used as a support medium for electrophoresis for separating glycosylated hemoglobin Hb Alc from the other types of hemoglobins. A densitometric analysis of the gel after electrophores... | 09/21/1993 |
| 5230832 | Galactomannan-agarose binary gel for nucleic acid electrophoresis A method for forming an agarose electrophoretic gel by addition of gamma-irradiated clarified galactomannan (γCGM) to optically clarify the gel and improve the electrophoretic fractionation and resolution of oligonucleotides differing in molecular weight... | 07/27/1993 |
| 5171410 | Method and formulation for creating kinase isoform separation An improved gel formulation and method for high-voltage, short duration electrophoretic separation of isoforms of CK isoenzymes. The gel is an homogeneous mixture of agarose and a buffer having a molarity of about 0.05M. CK-MM and/or CK-MB isoforms are el... | 12/15/1992 |
| 5104508 | Analysis of carbohydrates A carbohydrate structure, possibly in the form of or derived from a glycoprotein or glycolipide, is analyzed by decomposing the structure into various constituent fragments, separating the fragments and viewing light from the separated fragments using a c... | 04/14/1992 |
| 4936963 | Polycationic buffers and method for gel electrophoresis of nucleic acids The present invention provides for polycationic buffers for the gel electrophoresis of and methods for obtaining improved separation and resolution of nucleic acids. In particular, the invention provides for a buffer consisting essentially of histidine fo... | 06/26/1990 |
| 4872965 | Contact lens cleaning apparatus An apparatus for cleaning soft contact lenses by the application of an electrical field and comprising a base which is made of non-conducting material for holding a lens, a fluid capable of transmitting the electrical charge, means for containing the elec... | 10/10/1989 |
| 4870004 | Apparatus and method of analyzing nucleic acid molecules Apparatus and method of sequencing nucleic acid molecules, including DNA and RNA molecules. Several copies of the molecules are labeled with a radioactive tracer and divided into separate groups. The groups of molecules are then each chemically cleaved to... | 09/26/1989 |
