The present invention relates to a method of producing block copolymer membranes in fat sheet geometry having a surface morphology comprising ordered, isoporous nanopores. The method comprises providing a polymer solution of at least one amphiphilic block copolymer in a solvent; applying the polymer solution onto a substrate to provide a cast polymer solution; applying an electrical field to the cast polymer solution in a direction substantially perpendicular to the cast polymer solution; and thereafter immersing the cast polymer solution into a coagulation bath thereby inducing phase inversion to produce an integrally asymmetrical block copolymer membrane in flat sheet geometry.

The present invention relates to a method of producing block copolymer membranes in fat sheet geometry having a surface morphology comprising ordered, isoporous nanopores. The method comprises providing a polymer solution of at least one amphiphilic block copolymer in a solvent; applying the polymer solution onto a substrate to provide a cast polymer solution; applying an electrical field to the cast polymer solution in a direction substantially perpendicular to the cast polymer solution; and thereafter immersing the cast polymer solution into a coagulation bath thereby inducing phase inversion to produce an integrally asymmetrical block copolymer membrane in flat sheet geometry.

Disclosed herein are compositions and methods that involve inserting connector protein channels of bacteriophage DNA packaging motors into copolymeric membranes via liposome-polymer fusion, which can be used as nanopore sensors for biomedical applications such as high throughput protein sequencing or cancer diagnosis. For example, disclosed are compositions comprising a copolymeric membrane into which a connector protein channel of a bacteriophage packaging motor has been inserted.

Disclosed herein are compositions and methods that involve inserting connector protein channels of bacteriophage DNA packaging motors into copolymeric membranes via liposome-polymer fusion, which can be used as nanopore sensors for biomedical applications such as high throughput protein sequencing or cancer diagnosis. For example, disclosed are compositions comprising a copolymeric membrane into which a connector protein channel of a bacteriophage packaging motor has been inserted.

A permselective membrane is provided with a support membrane having selective permeability, and a coating layer formed on a surface of the support membrane and including a lipid bilayer membrane containing a channel substance. The support membrane includes a polyamide membrane providing permeation flux of 35 L/(m.sup.2.Math.h) or more at a pressure of 0.1 MPa. A method for producing the permselective membrane includes a step of treating a polyamide membrane with chlorine to produce the support membrane and a step of forming the lipid bilayer membrane on the support membrane.

A permselective membrane is provided with a support membrane having selective permeability, and a coating layer formed on a surface of the support membrane and including a lipid bilayer membrane containing a channel substance. The support membrane includes a polyamide membrane providing permeation flux of 35 L/(m.sup.2.Math.h) or more at a pressure of 0.1 MPa. A method for producing the permselective membrane includes a step of treating a polyamide membrane with chlorine to produce the support membrane and a step of forming the lipid bilayer membrane on the support membrane.

A thin film composite gas separation membrane comprising a polyether block amide copolymer coating layer and a nanoporous asymmetric support membrane with nanopores on the skin layer surface of the support membrane and gelatin polymers inside the nanopores on the skin layer surface of the support membrane. A method for making the thin film composite gas separation membrane is provided as well as the use of the membrane for a variety of separations such as separations of hydrogen sulfide and carbon dioxide from natural gas, carbon dioxide removal from flue gas, fuel gas conditioning, hydrogen/methane, polar molecules, and ammonia mixtures with methane, nitrogen or hydrogen and other light gases separations, but also for natural gas liquids recovery and hydrogen sulfide and carbon dioxide removal from natural gas in a single step.

A filtration vessel, having within constituent filter media is formed using plastic injection molding to meet the interior specifications of a high-pressure filtration encasement system while remaining a separate replaceable component. The encasement system supports and encases walls of the filtration vessel enabling the vessel to be designed with sufficient strength and resiliency to form a seal and constrain filter media prior to and after use without necessitating construction to endure independent high-pressure operations. The bottom or base of the vessel includes a plurality of holes through which the filtrate may flow. Interposed between the base of the vessel and the filter media is a semi-permeable barrier imbedded into the injection molded walls and base of the vessel. The barrier prevents residue from contaminating the filtrate.

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.