Membranes TRIZ Cases

A gas separation membrane sheet with an aspect ratio of at least 1.5 paired with a permeate spacer having an open space volume of at least 0.0004 m3/m2.

Varying porous zone thickness from center to periphery reduces average stress values and homogenizes distribution across the rigid support.

Winding tilted hollow fiber membranes reduces pressure loss and blood filling amounts in oxygenators while maintaining structural integrity.

Segmented atomic layer deposition prevents pore clogging during growth, enabling high-aspect-ratio nested coaxial nanostructures for chemical sensors.

Grooved rollers compress hollow fiber membranes to force washing fluid through the wall, eliminating large water baths and reducing energy consumption.

Crown ether inclusion complexes mediate interfacial polymerization to boost water flux while maintaining salt rejection in seawater desalination.

Alternating current on conductive membranes delays crystallization, preventing mineral scale formation and maintaining high water recovery.

A bubble trap accumulates gas leaking through capillary dialyser membranes, enabling quantitative integrity testing without prolonged observation.

Phase separation creates a co-continuous network that dissociates water while maintaining mechanical strength without complex supports.

Paraffin wax extraction creates uniform pores in polyethylene membranes, resolving the trade-off between mechanical strength and electrical performance.

A water purifier uses a flow path shifting valve to route water through distinct filter stages based on sensor readings.

Periodic deconcentration steps prevent excessive pressure buildup during high-solid concentration, reducing energy consumption and fouling.

Replacing ion exchange resin, this two-stage nanofiltration process removes sodium and calcium impurities while maintaining concentration.

Simulated moving bed chromatography resolves the trade-off between purification quality and industrial scalability.

Crosslinked hydrophilic polymer membrane incorporating alkali metal compounds enhances steam permeation rate and selectivity.

Parallel segmentation of a tangential flow filter reduces pressure differentials to prevent clogging and lysis during cerebrospinal fluid processing.

Thin conductor tracks on the membrane surface detect microscopic cracks by interrupting electrical current, enabling reliable condition monitoring.

Hydrophilic and hydrophobic patterns on substrate surfaces create isolated liquid columns for nano-pore sequencing, preventing sample contact with electrodes.

A microporous membrane uses controlled temperature phase separation to stabilize pore diameter uniformity across the cast film surface.

Integral potting bonds the cartridge assembly, eliminating complex mechanical fasteners and O-rings for reliable sealing.

A palladium membrane coated with a nanoporous ceramic layer enhances hydrogen permeance and structural integrity.

Automated priming via centrifugal force eliminates skilled technician requirements and filling errors in lab-on-disk particle filtration systems.

Dissolving polyamide resin in organic solvent at high temperature overcomes low water flow rates and fouling in conventional filtration membranes.

Self-cross-linked aromatic polyimide membranes use internal ester bonds to resolve the trade-off between gas separation selectivity and hydrolytic stability.

A multi-layer microporous polyolefin membrane combines polyethylene and high molecular weight polypropylene to enhance ion permeability.

Real-time membrane resistance monitoring triggers automatic backwash cycles, reducing chemical cleaning frequency and extending operational lifespan.

Diffusion bonding a densified mesh and filament layer creates a structural support that withstands high pressures while maintaining uniform permeability.

Disposable conductivity sensors and automated peristaltic pumps replace manual operations, eliminating cleaning validation time and contamination risks.

A membrane filtration cell applies electric and acoustic fields across a filtration membrane to prevent fouling.

A selective permeability membrane separates undesired fluids from multi-component liquids without chemical interaction.

A blood gas exchanger incorporates a movable restriction element within the gas inlet compartment to control oxygen delivery across hollow fiber bundles.

Diafiltration with adjusted pH and salts reduces membrane fouling, extending lifetime while separating phenolic compounds.

Intermediate spacer creates radial gap for partition insertion, preventing lumen collapse and maintaining heat exchange rates.

Porous hydrophobic membranes separate vapor from liquid in a hygroscopic reservoir, resolving high cost and complexity of atmospheric water extraction.

Ester-crosslinking joins polyimide layers in a composite hollow fiber membrane, preventing delamination during crosslinking.

A hollow fiber membrane embeds non-braided reinforcing filaments within its wall to maintain structural integrity.

Angled slots generate sustained vortices to suspend and transport particles, reducing membrane clogging and energy expenditure in cross-flow filtration.

A spinning membrane separator concentrates platelets from blood using centrifugal force and porous filtration within an automated disposable circuit.

A nested manifold arrangement connects parallel filters to process high flow rates in a compact footprint.

A photocurable (meth)acrylate adhesive forms cured features on reverse osmosis membranes using a polyether urethane component.

Thermal compression eliminates relaxation stress in PTFE membranes, preventing inter-laminar shearing during elevated temperature service.

Composite nanostructures with crumpled graphene oxide shells encapsulate metal nanoparticles to enhance filtration membranes.

Integrating pressure exchange with batch desalination overcomes large volume container limitations, enabling low-energy continuous seawater treatment.

Esterification converts residual carboxylic acids in sulfonated block copolymers to alkyl esters, preventing membrane defects and odors.

A transponder in a filter cartridge detects operating parameters via contactless electromagnetic signal analysis.

Recessed end cap passages allow test fluid flow to distinguish properly welded joints from plugged connections, ensuring reliable leak detection.

A microfluidic device uses a MEMS filter and ultrasound vibrator to separate exosomes from cells with high speed.

Integrating support formation and crosslinking into one step reduces process complexity while enhancing organic solvent resistance of the membrane.