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Class 204/551 - Solid sorption or desorption


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process which involves electrophoretic or electro-osmotic
No. of patents: 71
Last issue date: 08/24/2010


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NumberTitleIssue Date
7780834Apparatuses and methods for electrochemically modifying the retention of species on chromatography material
An apparatus and method for electrochemically modifying the retention of a species on a chromatography material is disclosed. The apparatus comprises a housing having an effluent flow channel adapted to permit fluid flow therethrough. The effluent flow channel compr...
08/24/2010
7531075Method and apparatus for generating a high purity eluant
An apparatus and method for electrochemically modifying the retention of a species on a chromatography material is disclosed. The apparatus comprises a housing having an effluent flow channel adapted to permit fluid flow therethrough. The effluent flow channel compr...
05/12/2009
7402283Electrolytic eluent generator and method of use
An acid or base is generated in an aqueous solution by the steps of: (a) providing a source of first ions adjacent an aqueous liquid in a first acid or base generation zone, separated by a first barrier (e.g., anion exchange membra...
07/22/2008
7364646High-purity eluant generator
An apparatus and method for electrochemically modifying the retention of a species on a chromatography material is disclosed. The apparatus comprises a housing having an effluent flow channel adapted to permit fluid flow therethrough. The effluent flow channel compr...
04/29/2008
7314708Method and apparatus for electronic synthesis of molecular structures
A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats. These reactions include nucleic acid hybridization, antibody/antig...
01/01/2008
7291271Meso-frequency traveling wave electro-kinetic continuous adsorption system
The invention provides a non-cyclic, meso-frequency traveling wave electro-kinetic system capable of use in purification/separation and/or refrigeration/heat pump processes. In particular, the invention provides an adsorption system that can be used for fine or bulk...
11/06/2007
7288176Method and apparatus for generating high purity eluant
A method and apparatus is provided for generating a high purity eluant suitable for use in chromatography. The high purity eluant may be generated by providing water and a first stationary phase comprising exchangeable cations. Electrolysis ions are generated by the...
10/30/2007
7285219Chromatographic separation member and method
There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest ...
10/23/2007
7282294Hydrogen storage-based rechargeable fuel cell system and method
A dual mode electrochemical system comprises a first electrode capable of storing hydrogen, a second electrode, a substantially electrically insulating and substantially ionically conducting membrane interposed therebetween and an electrolyte. In a first mode, upon ...
10/16/2007
7276306System for the co-production of electricity and hydrogen
Described herein is a system for the co-generation of hydrogen gas and electricity, wherein the proportion of hydrogen to electricity can be adjusted from 0% to 100%. The system integrates fuel cell technology for power generation with fuel-assisted steam-electrolys...
10/02/2007
7241419Circuits for the control of output current in an electronic device for performing active biological operations
A circuit for control of an output current in a multiple unit cell array includes an array of unit cells arranged in rows and columns. Each unit cell includes a column select transistor being adapted for control by a column selector and a row select transistor being...
07/10/2007
7226429Method for removal of viruses from blood by lectin affinity hemodialysis
The present invention relates to a method for using lectins that bind to pathogens having high mannose surface glycoproteins or fragments thereof which contain high mannose glycoproteins, to remove them from infected blood or plasma in an extracorporeal setting. Acc...
06/05/2007
7172864Methods for electronically-controlled enzymatic reactions
A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats. These reactions include nucleic acid hybridizations, antibody/anti...
02/06/2007
7172896Integrated portable biological detection system
We have performed separation of bacterial and cancer cells from peripheral human blood in microfabricated electronic chips by dielectrophoresis. The isolated cells were examined by staining the nuclei with fluorescent dye followed by laser induced fluorescence imagi...
02/06/2007
7153476Large capacity acid or base generator apparatus
Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generatio...
12/26/2006
7153955Pentopyranosyl nucleic acid arrays, and uses thereof
The invention relates to a pentopyranosylnucleoside of the formula (I) or of the formula (II) their preparation and use for the production of a therapeutic, diagnostic and/or electronic component. ...
12/26/2006
7138042Alternating-polarity operation for complete regeneration of electrochemical deionization system
An electrically regeneratable battery of electrochemical cells for capacitive deionization (including electrochemical purification) and regeneration of electrodes is operated at alternate polarities during consecutive cycles. In other words, after each regeneration ...
11/21/2006
7127937Method for leak detection in gas feeding systems with redundant valves
A method for detecting leaks in a fuel cell system that includes a hydrogen storage tank, a primary shut-off valve and a secondary shut-off valve in a supply line. At shut-down, the primary shut-off valve is closed and the stack is temporarily left operating. The pr...
10/31/2006
7101661Apparatus for active programmable matrix devices
A system for performing molecular biological diagnosis, analysis and multistep and multiplex reactions utilizes a selfaddressable, selfassembling microelectronic system for actively carrying out controlled reactions in microscopic formats. Preferably, a fluidic syst...
09/05/2006
7060224Methods for the electronic, homogeneous assembly and fabrication of devices
Methods and apparatus are provided for the fabrication of microscale, including micron and sub-micron scale, including nanoscale, devices. Electronic transport of movable component devices is utilized through a fluidic medium to effect transport to a desired target ...
06/13/2006
7014744Method of purification and concentration using AC fields with a transfer tip
Embodiments of methods and devices are disclosed for the manipulation (e.g., concentration, purification, capture, trapping, location, transfer, etc.) of analytes, e.g., biomolecules, with respect to analyte-containing solutions using one or more electric fields.
03/21/2006
6955922Large capacity acid or base generator and method of use
Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generatio...
10/18/2005
6706196Method and apparatus for preventing scale deposits and removing contaminants from fluid columns
A method and apparatus provide fluid treatment at a plurality of distinct points using a length of energized magnetically conductive conduit in fluid communication with non-magnetic coupling devices. The instant invention prevents the formation and accumulation of c...
03/16/2004
6687638Inspection equipment integrity enhancement system
An inspection equipment integrity system uses independent sensors and processing capabilities to determine the integrity of inspection equipment. The sensors detect the presence of packages at predetermined positions. The system further receives input fro...
02/03/2004
6682701Large capacity acid or base generator apparatus
Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a bas...
01/27/2004
6423199Electrochemical ion exchange using carbollide systems
An electrochemical ion exchange cell comprises a metal carbollide as ion exchange material. The carbollide is preferably a polynuclear cobalt dicarbollide and is typically substituted by chlorine. Also novel are polynuclear metal carbollides comprising a ...
07/23/2002
6395143Biosorption system
The invention relates to a system, process and apparatus for separating biosorbent and sorbate. Biomass enclosed within a membrane system is coupled to an electrode, which is capable of being placed in contact with the sorbate containing material in the p...
05/28/2002
6316270Acid base or generator
A method for generating high purity acid or base in an aqueous stream for use as an eluent for chromatography and, particularly, ion chromatography. For generating a base for anion chromatography, the aqueous stream is directed through a cation exchange b...
11/13/2001
6309532Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes
An electrically regeneratable electrochemical cell (30) for capacitive deionization and electrochemical purification and regeneration of electrodes includes two end plates (31, 32), one at each end of the cell (30). A new regeneration method is applied to...
10/30/2001
6258237Electrophoretic diamond coating and compositions for effecting same
A method of depositing diamond particles on a surface of a substrate is provided. The method is effected by (a) charging the diamond particles by a positive charge to obtain positively charged diamond particles; and (b) electrophoretically depositing the ...
07/10/2001
6235219Compositions useful as desiccants and methods relating thereto
Compositions useful as desiccants are disclosed. The compositions may be prepared by admixing components comprising a hygroscopic material and an organic polymer in a solvent to form a solution, followed by drying the solution to remove solvent and provid...
05/22/2001
6225129Large capacity acid or base generation apparatus and method of use
Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a bas...
05/01/2001
6214204Ion-removal from water using activated carbon electrodes
An electrode for deionization of water is made of a continuous activated carbon structure. The activated carbon is derived from a synthetic carbon precursor. The structure has openings, inlet and outlet ends such that water entering the inlet end passes t...
04/10/2001
6096179Carbon-reinforced electrode and method of making same
A carbon-reinforced electrode is disclosed. The electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a car...
08/01/2000
6090259Liquid deionization apparatus having independently powered carbon-reinforced electrode structures
An apparatus for deionization of a liquid is disclosed. The apparatus has a number of deionization cells, each cell having two different types of electrodes. The first type of electrode is formed from a high surface area absorptive material ("HSAAM electr...
07/18/2000
6054053Methods of improving peak resolution in reversed-phase electrochromatography
Peak resolution in reversed-phase electrochromatography is improved in either of two alternative ways. The first is by a stepwise increase in the concentration of acetonitrile or other equivalent buffer constituent or modifier after the sample has been lo...
04/25/2000
6036921Acid or base generator with chromatograph
An apparatus for generating high purity acid or base in an aqueous stream for use as an eluent for chromatography and, particularly, ion chromatography. For generating a base for anion chromatography, the aqueous stream is directed through a cation exchan...
03/14/2000
6007771Method of cleaning non-permeable contact lens
Apparatus and methods for holding and cleaning non-permeable contact lenses which includes the application of an electromagnetic field about the contact lenses which are held in a cavity containing a conductive solution and an adsorbent membrane to captur...
12/28/1999
5980718Means for limiting and ameliorating electrode shorting
A fuse and filter arrangement for limiting and ameliorating electrode shorting in capacitive deionization water purification systems utilizing carbon aerogel, for example. This arrangement limits and ameliorates the effects of conducting particles or debo...
11/09/1999
5954937Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes
An electrically regeneratable electrochemical cell (30) for capacitive deionization and electrochemical purification and regeneration of electrodes includes two end plates (31, 32), one at each end of the cell (30). Two end electrodes (35, 36) are arrange...
09/21/1999
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