The present disclosure describes membrane compositions and methods for preparing membrane compositions. In particular, the methods employ a layer-by-layer approach to membrane preparation. The membrane compositions provide significantly enhanced membrane performance over existing commercial membranes, particularly in terms of permeability and selectivity.

The present invention relates to a method for preparing a 3D biological bilayer membrane structure in a physiological buffer solution and a 3D biological bilayer membrane structure using the same, and more particularly, to a method for preparing a 3D biological bilayer membrane structure that is tightly sealed even under physiological ionic conditions by applying pressure during electroformation to improve a membrane fusion function, and a 3D biological bilayer membrane structure using the same.

The present disclosure describes biomimetic membrane compositions with specifically designed angstrom-scale pores, particularly the continuum of pore sizes between 3 and 10 . Further provided are methods of redesigning a protein pore for a desired pore size. The redesigned protein pores and biomimetic membranes based on these proteins provide high selectivity while maintaining high permeability and have many advantages over existing aquaporin-based membranes.

Various examples are provided for highly selective and ultra-high throughput filtration using bilayer two-dimensional (2D) material laminates and highly absorptive medium of 2D material laminates or solution dispersions. In one example, a 2D material bilayer membrane includes a first membrane layer; an interlinking layer of interlinking molecules disposed on the first membrane layer; and a second membrane layer disposed on the interlinking layer. The interlinking molecules electrostatically or covalently interlink the second membrane layer and first membrane layer.

Autonomous localized permeability material systems are provided that can include: a dynamically permeable porous material; and immobilized reagents operatively associated with the porous material in sufficient proximity to trigger a localized change in material pore size upon reagent reaction. Methods for preparing these materials are also provided as well as methods for autonomously modifying localized permeability of material.

The present invention relates to a water extraction system comprising a flow cell comprising a membrane; said membrane comprising an active layer comprising immobilized aquaporin water channels and a support layer, and said membrane having a feed side and a non-feed side; and an aqueous source solution in fluid communication with the feed side of the membrane.

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

Present invention relates to a thin film composite membrane wherein a thin selective layer, having incorporated amphiphilic vesicles, is supported by a microporous substrate. A process of preparing the thin film composite membrane and its use are also disclosed.

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.

The present invention provides, inter alia, compositions including at least one pliable layer comprising a plurality of silk fibroin nanofibrils, and at least one rigid layer comprising a plurality of mineral crystals, wherein each rigid layer is associated with at least one pliable layer, as well as methods for the production and use thereof.