Patent application number | Description | Published |
20130240355 | FUNCTIONALIZATION OF GRAPHENE HOLES FOR DEIONIZATION - A method for deionization of a solution, the method comprising functionalizing plural apertures of a graphene sheet to repel first ions in the solution from transiting through the functionalized plural apertures. The non-transiting first ions influence second ions in the solution to not transit through the functionalized plural apertures. The graphene sheet is positioned between a solution flow path input and a solution flow path output. Solution enters the solution flow path input and through the functionalized plural apertures of the graphene sheet, resulting in a deionized solution on the solution flow path output side of the graphene sheet and a second solution containing the first ions and second ions on the solution flow path input side of the graphene sheet. | 09-19-2013 |
20130248367 | MOLECULAR SEPARATION DEVICE - A molecular separation device includes a chamber having an inlet and an outlet through which flows an aqueous suspension and a porous separation membrane positioned in the chamber substantially orthogonally to the flow of the aqueous suspension. An electrical charging device connects to the separation membrane to apply a periodic electric charge so as to collect components blocked by the porous separation membrane. Related methods are also disclosed. | 09-26-2013 |
20130277305 | SELECTIVELY PERFORATED GRAPHENE MEMBRANES FOR COMPOUND HARVEST, CAPTURE AND RETENTION - Devices and related methods for arresting and retaining molecules from solution upon the surface of a perforated graphene membrane with plural apertures selected to allow passage of the solutions' solvent while simultaneously arresting desired molecules upon the surface of the membrane. The method continues with arranging the perforated graphene membranes in a sequence of successively smaller plural aperture diameters to arrest and retain successively smaller molecules in series. The dislodging devices include electromagnetic, electromechanical and electrostatic configurations. | 10-24-2013 |
20140261999 | METHOD OF SEPARATING AN ATOMICALLY THIN MATERIAL FROM A SUBSTRATE - A method of separating an atomically thin material, such as graphene, from a substrate, such as copper, is disclosed. The method provides a composite sheet, such as a graphene-copper sheet, and then applies hypersonic waves to the composite sheet so as to break the bonds therebetween and separate a graphene sheet from the copper substrate. A system to implement the separation is also disclosed. | 09-18-2014 |
20150177480 | CONDENSATION INHIBITING LAYER, METHOD OF FORMING THE LAYER, AND CONDENSATION INHIBITING DEVICE - A condensation inhibiting layer includes an electrostrictive actuator film, and a treated surface formed on the electrostrictive actuator film and including a plurality of channels. | 06-25-2015 |
20150218210 | MOLECULAR SEPARATION DEVICE - A molecular separation device includes a chamber having an inlet and an outlet through which flows an aqueous suspension and a porous separation membrane positioned in the chamber substantially orthogonally to the flow of the aqueous suspension. An electrical charging device connects to the separation membrane to apply a periodic electric charge so as to collect components blocked by the porous separation membrane. Related methods are also disclosed. | 08-06-2015 |
20150258254 | METHODS FOR IN VIVO AND IN VITRO USE OF GRAPHENE AND OTHER TWO-DIMENSIONAL MATERIALS - Two-dimensional materials, particularly graphene-based materials, having a plurality of apertures thereon can be formed into enclosures for various substances and introduced to an environment, particularly a biological environment (in vivo or in vitro). One or more selected substances can be released into the environment, one or more selected substances from the environment can enter the enclosure, one or more selected substances from the environment can be prevented from entering the enclosure, one or more selected substances can be retained within the enclosure, or combinations thereof. The enclosure can for example allow a sense-response paradigm to be realized. The enclosure can for example provide immunoisolation for materials, such as living cells, retained therein. | 09-17-2015 |
20150258498 | GRAPHENE-BASED MOLECULAR SEPARATION AND SEQUESTRATION DEVICE AND METHODS FOR HARVEST AND RECOVERY - A device for separating a component from a medium includes at least one charging area to apply an electrical charge to the medium which aligns the medium according to a polarity of the electrical charge. At least one screening area is associated with the charging area to separate a component from the aligned medium. | 09-17-2015 |