A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second layer is smaller than an average thickness of the first layer, and the second layer satisfies 0.56<?.sub.2, where an activity coefficient of nitrogen in the second layer, calculated by the COSMO-RS method, is ?.sup.2.sub.N2, an activity coefficient of carbon dioxide in the second layer is ?.sup.2.sub.CO2, and a separation performance parameter of the second layer at 25? C. is ?.sub.2=ln(?.sup.2.sub.N2)?ln(?.sup.2.sub.CO2).

The present disclosure provides methods, compositions, kits and apparatuses for stabilizing membranes, membrane proteins, and/or membranes containing membrane proteins using hydrophobin.

The present disclosure provides methods, compositions, kits and apparatuses for stabilizing membranes, membrane proteins, and/or membranes containing membrane proteins using hydrophobin.

The present invention provides a RO membrane or a FO membrane comprising a coating layer made of a phospholipid bilayer membrane and formed on a surface of a porous membrane body, having a high water permeate flow rate and salt rejection performance, the membrane being a permselective membrane comprising a porous membrane having a pore size of 5 nm to 50 nm and a coating layer made of a phospholipid bilayer and formed on a surface of the porous membrane, wherein (i) the phospholipid bilayer comprises phospholipid, amphotericin B, and ergosterol; (ii) a content of the amphotericin B is 3 to 20 mol % based on the phospholipid bilayer; (iii) a total content of the ergosterol and the amphotericin B in the phospholipid bilayer is 10 to 30 mol %.

A method of creating storing and using recycled graphene oxide materials to create highly resilient objects having desirable qualities of graphene.

A composition of five parts by mass of chitosan and one part graphene oxide is suspended in water. The composition may be used to form filtration layers of any size or shape and may be reinforced by additional layers. The composition may be used to construct a large filtration apparatus of any size or shape and may be used to form highly resilient, antimicrobial structures and surfaces for a variety of applications.

A composition of five parts by mass of chitosan and one part graphene oxide is suspended in water. The composition may be used to form filtration layers of any size or shape and may be reinforced by additional layers. The composition may be used to construct a large filtration apparatus of any size or shape and may be used to form highly resilient, antimicrobial structures and surfaces for a variety of applications.

In a method p for controlling translocation of a target polymer molecule through a nanopore, a clamp is reversibly bound to a sequential plurality of polymer subunits along the target polymer molecule length and the molecule and clamp are disposed in an ionic solution that is in fluidic communication with the nanopore. A constant translocation force is applied across the nanopore to induce travel of the target polymer molecule into the nanopore, until the clamp abuts the nanopore aperture and stops further travel of the target polymer molecule into the nanopore. Then a voltage control pulse is applied across the nanopore and/or a thermal control pulse is applied at the nanopore, with a pulse duration that steps the clamp along the target polymer molecule by no more than one polymer subunit in a direction opposite that of travel into the nanopore. No fuel is provided to the clamp.

In a method p for controlling translocation of a target polymer molecule through a nanopore, a clamp is reversibly bound to a sequential plurality of polymer subunits along the target polymer molecule length and the molecule and clamp are disposed in an ionic solution that is in fluidic communication with the nanopore. A constant translocation force is applied across the nanopore to induce travel of the target polymer molecule into the nanopore, until the clamp abuts the nanopore aperture and stops further travel of the target polymer molecule into the nanopore. Then a voltage control pulse is applied across the nanopore and/or a thermal control pulse is applied at the nanopore, with a pulse duration that steps the clamp along the target polymer molecule by no more than one polymer subunit in a direction opposite that of travel into the nanopore. No fuel is provided to the clamp.

Disclosed are apparatus and methods for blood and other biological fluid purification using a membrane with cell containing vascular channel systems and filtration channel systems. Also disclosed are methods of making the apparatus as well as methods of making membranes.