In some embodiments, a filter membrane module includes at least one ceramic filter element made of a sintered, porous, ceramic structure, a potting material for potting the ceramic filter element, the potting material having an uncured state and a cured state, and a housing, wherein the potting material is a thermoplastic or a thermosetting plastic that in the cured state has a tensile strength in the range of about 2-65 MPa and a thermal expansion coefficient in the range of about 55-260×10−6/K, and a penetration depth of the potting material into the structure of the filter element is in the range of 0.24 mm to 3.0 mm, and a shrinkage after curing is less than 1.24%.

A first wafer has a first stop layer deposited on a substrate, the substrate used to form a base support structure. A second wafer has a second stop layer deposited on a sacrificial substrate, and a filter layer deposited on the second stop layer. A rib layer is deposited on one of: the first stop layer of the first layer; or a third stop layer that is deposited over the filter layer. A rib pattern is formed in the rib layer. The first and second wafers are flip bonded such that the rib pattern is joined between the filter layer and the first stop layer. Elongated voids are formed within the filter layer. The base support structure is formed within the substrate of the first wafer such that there is a fluid flow path between the base support structure, the rib layer, and the elongated voids of the filter layer.

Provided are methods, devices, and kits for the isolation of extracellular vesicles using silicon nanomembranes. A method for EV isolation includes the steps of collecting a biofluid sample, contacting the biofluid sample with a pre-filtration membrane, thereby forming a first filtrate and a first retentate, optionally, washing the first retentate of the pre-filtration membrane, contacting the first filtrate from the pre-filtration membrane with a capture membrane, thereb forming a second filtrate and a second retentate, optionally, washing the second retentate, and eluting the second retentate from the capture membrane or lysing the second retentate to recover the contents.

An evaporative emission control system for an automotive vehicle having an internal combustion engine and a fuel tank includes a membrane module disposed and connected between the internal combustion engine and the fuel tank, and configured to reduce discharge of fuel vapor generated from the fuel tank to the atmosphere. The membrane module includes a first passage and a second passage separated by a membrane, and the fuel vapor permeates the membrane in the membrane module. The evaporative emission control system further includes a buffer-volume housing connected to the membrane module by an additional passage and configured for storing fuel-rich vapor that has permeated the membrane. Furthermore, the evaporative emission control system includes an activated carbon filter disposed between the fuel tank and the membrane module, and a purge valve disposed between the membrane module and the engine.

The present technology provides micro fabricated filtration devices, methods of making such devices, and uses for microfabricated filtration devices. The devices may allow diffusion to occur between two fluids with improved transport resistance characteristics as compared to conventional filtration devices. The devices may include a compound structure that includes a porous membrane overlying a support structure. The support structure may define a cavity and a plurality of recesses formed in a way that can allow modified convective flow of a first fluid to provide improved diffusive transport between the first fluid and a second fluid through the membrane.

Methods for forming porous or nanoporous semiconductor materials are described. The methods allow for the formation of arrays pores or nanopores in semiconductor materials with advantageous pore size, spacing, pore volume, material thickness, and other aspects. Porous and nanoporous materials also are provided.

A pass or tube or a section thereof or U bend in a coil in a paraffin cracker having section having a pore size in the metal substrate from about 0.001 to 0.5 microns over coated with a dense metal membrane permits the permeation of one or more of H.sub.2, CH.sub.4, CO and CO.sub.2 from cracked gases moving the reaction equilibrium to the production of ethylene and reduces the load on the down-stream separation train of the steam cracker.

A perfluorocarbon-free membrane composed of a non-perfluorocarbon material having a first side and a second side opposite of the first side. The perfluorocarbon-free membrane also includes a plurality of pores, each having an inlet and outlet and each passing through the non-perfluorocarbon material so that each pore provides fluidic communication between the first and second sides of the non-perfluorocarbon material. A portion of the non-perfluorocarbon material extends over the inlet and outlet of each the plurality of pores so that a cross-sectional area of the inlets and outlets in a direction of the extension of the non-perfluorocarbon material is smaller than a cross-sectional area of the respective pore in the direction of the extension of the non-perfluorocarbon material. The perfluorocarbon-free membrane does not include a hydrophobic perfluorocarbon coating.

The present invention provides an omniphobic membrane and application thereof. The omniphobic membrane comprises a porous substrate which has a pore size between 0.4 and 2 m, a top coat, and an interface layer between the porous substrate and the top coat, and the omniphobic membrane has a carbon/silicon ratio between 40 and 60, and a hierarchical re-entrant structure. Furthermore, both of a process for fabricating the omniphobic membrane and a method for desalination of a liquid by membrane distillation are provided in the present invention.

The present disclosure discloses a preparation method of an organosilica/ceramic composite membrane with a gradient pore structure. The preparation method comprises: (1) selecting a porous ceramic material as a membrane support layer; (2) gradually replacing a solvent with water to prepare zirconium colloidal sols with different particle sizes, and successively coating the prepared zirconium colloidal sols onto a ceramic support from large to small so as to form a membrane transition layer with a gradient pore structure; and (3) catalytically synthesizing an organosilica polymeric sol using hydrochloric acid, coating the prepared organosilica sol onto the preheated transition layer through ultrasonic thermal spraying to undergo heat treatment, so as to prepare the organosilica/ceramic composite membrane with the gradient pore structure. According to the present disclosure, the transition layer with the gradient pore structure is prepared by using the zirconium colloidal sols with different particle sizes. An ultrathin defect-free organosilica separation layer is prepared through ultrasonic thermal spraying. As a result, the obtained organosilica/ceramic composite membrane can be applied to the fields of salt-containing dye wastewater treatment and polypeptide bioactive substance separation.