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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Variable charge films for controlling microfluidic flow
Description:
A microfluidic device for carrying a liquid, the device comprising a microfluidic channel having an interior wall and a polyelectrolyte film on the interior wall whereby liquid carried by the channel contacts the polyelectrolyte film, ...
A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article...
Hydrophobic fluorinated polyelectrolyte complex films and associated methods
Description:
A polyelectrolyte film is provided, the polyelectrolyte film comprises an interpenetrating network of a net positively charged polymer and a net negatively charged polymer, wherein the net positively charged polymer, the net negatively...
Polymer mechanical damping composites and methods of production
Description:
A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged...
Combined vertical and rotational motion indexing mechanism
Description:
A mechanical indexing device. The device comprises a mechanism for converting linear motion into many different combinations of linear and rotary motion, whereby an object can be moved along a desired linear path and indexed through a...
Polyelectrolyte complex films for analytical and membrane separation of chiral compounds
Description:
The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates, capillary tubes, chromatographic packing...
Hydrophobic fluorinated polyelectrolyte complex films and associated methods
Description:
A fuel cell comprising a proton transporting membrane is provided. The proton transporting membrane comprises a polyelectrolyte film comprising a multilayer comprising an interpenetrating network of a net positively charged...
A method for controlling the attachment and growth of cells on a surface of an article, the method comprising contacting the article with living tissue, living organisms, or with water in an aqueous system comprising living organisms...
Ordered array of magnetized nanorods and associated methods
Description:
An ordered array of magnetized nanorods includes a plurality of metallic nanorods generally cylindrical in shape and including a nickel portion coated with a positively charged polyelectrolyte and a gold portion coated with an...
Stable iron oxide nanoparticles and method of production
Description:
A method of preparing a dispersion of stabilized iron oxide nanoparticles that comprise cores and coatings on the cores, which comprise zwitterionic functional groups chemically bound to the cores, using a single solution that comprises...
Analytical separations with polyelectrolyte layers, molecular micelles, or zwitterionic polymers
Description:
Polymeric surfactants (molecular micelles) are disclosed for use in open tubular capillary electrochromatography or in high performance liquid chromatography. For example, fused silica capillaries are coated with thin films of charged...
Apparatus for capillary electrophoresis and associated method
Description:
An apparatus and method for capillary zone electrophoresis includes a polyelectrolyte multilayer positioned in a capillary tube for analytical separations of macromolecules. The capillary comprises a passage defined by passage walls...
A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article...
Brain implantable electrodes having an increased signal to noise ratio and method for making same
Description:
Herein disclosed are an electrode and a method for making an electrode having an enhanced electrically effective surface providing an increased signal to noise ratio. The electrode having a metal surface selected from gold, tungsten, ...
This invention relates to an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region and a method for preparing such an article. The...
Method of preparing free polyelectrolyte membranes
Description:
A releaseable membrane structure for producing a free membrane containing a substrate, a release stratum on the substrate and a membrane stratum on the release stratum. The release stratum and the membrane stratum contain oppositely...
Biocompatible polyelectrolyte complexes and methods of use
Description:
An article comprising a polyelectrolyte complex comprising an interpenetrating network of at least one predominantly positively charged polyelectrolyte polymer and at least one predominantly negatively charged polyelectrolyte polymer, ...
Solid scintillators for detecting radioactive ions in solution
Description:
A scintillator for absorbing and concentrating radioactive ions within a solution, the scintillator including a solid scintillator and an ionic layer on a surface of and in contact with the solid scintillator. When radioactive ions are...
An article for controlling the attachment and growth of cells on a surface of the article, and a method for the use of the article is provided. The article comprises a substratum having a surface and a film on the surface, the film...
Polymer mechanical damping composites and methods of production
Description:
An article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte and being free...
Proton-transfer, low self-absorbing chromophores for use in scintillators
Description:
Proton-transfer, low self-absorbing chromophores of the formula: ##STR1## wherein R.sub.2 and R.sub.3 are independently hydrogen, alkyl, aryl, cyano, nitro, halo or an ether group, R.sub.4 is O or N--H, and R.sub.5 is thienyl, naphthyl, ...
Controlled transport through multiple reversible interaction point membranes
Description:
A method for causing a membrane to become permeable to a first chemical species, in which the membrane is contacted with a solution comprising a second chemical species. The membrane comprises a polyelectrolyte complex film comprising a...
Biocompatible polyelectrolyte complexes and methods of use
Description:
An article comprising a polyelectrolyte complex comprising an interpenetrating network of at least one predominantly positively charged polyelectrolyte polymer and at least one predominantly negatively charged polyelectrolyte polymer, ...
Controlled transport through multiple reversible interaction point membranes
Description:
A membrane comprising two or more macromolecules that interact via multiple reversible physical interaction points (MRIPM). The membrane further comprises a chemical species A, which interacts selectively or nonselectively with the MRIPM...
Apparatus for capillary electrophoresis comprising polyelectrolyte multilayers
Description:
An apparatus and method for capillary zone electrophoresis includes a polyelectrolyte multilayer positioned in a capillary tube for analytical separations of macromolecules. The capillary comprises a passage defined by passage walls...
Brain implantable electrodes having an increased signal to noise ratio and method for making same
Description:
Herein disclosed are an electrode and a method for making an electrode having an enhanced electrically effective surface providing an increased signal to noise ratio. The electrode having a metal surface selected from gold, tungsten, ...
Polyelectrolyte complex films for analytical and membrane separation of chiral compounds
Description:
The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates, capillary tubes, chromatographic packing...
Polymer mechanical damping composites and methods of production
Description:
A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged...
Polymers containing covalently-bonded, low self-absorbing, scintillating chromophores, polymerizable chromophores of the formula: ##STR1## wherein R.sub.1 is vinyl, .alpha.-methyl vinyl, vinyl phenyl, or vinyl benzyl, and R.sub.2 and R...
Apparatus for capillary electrophoresis and associated method
Description:
An apparatus and method for capillary zone electrophoresis includes a polyelectrolyte multilayer positioned in a capillary tube for analytical separations of macromolecules. The capillary comprises a passage defined by passage walls...
Polymer mechanical damping composites and methods of production
Description:
A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged...
A specimen holder including a housing having a specimen chamber in it. A window defining a wall of the chamber allows transmission of at least a portion of the x-radiation from X-ray diffraction spectometry apparatus on which the holder...
Apparatus for capillary electrophoresis with polyelectrolyte multilayer coating on the capillary walls
Description:
An apparatus for capillary zone electrophoresis includes a polyelectrolyte multilayer positioned in a capillary tube for analytical separations of macromolecules. The capillary comprises a passage defined by passage walls comprising...
A medium for isolating or releasing an electrostatically charged component from or into an aqueous composition. The medium has a polyelectrolyte film on at least one surface of an article wherein the polyelectrolyte film is characterized...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
