Semi-Permeable Membranes TRIZ Cases

Plasma etching creates perforation structures and separates semiconductor chips simultaneously, eliminating mechanical stress from sequential dicing.

Evapoporometry determines pore sizes via evaporation, avoiding high pressure that deforms membranes.

A microfluidic lid structure uses capillary action to load fluid into a discrete chamber.

A mixed gas of 2,3,3,3-tetrafluoropropene and perfluorocyclobutane forms a silicon etching deposit film soluble in peeling solutions.

Monolayer nanoparticle coatings trap polysulfides and prevent dendrite growth, extending lithium-sulfur battery lifespan.

A stent coated with antineoplastic agents induces apoptosis in circulating cancer cells during extracorporeal dialysis.

Gradient porous membrane prevents substance permeability deterioration while inducing angiogenesis in transplantation chambers.

Modified polytetrafluoroethylene emulsion mixed with lubricant enables extrusion calendaring and high-temperature stretching to produce a stable film.

Optimizing scaffold diameter and oxide ratios balances alkaline resistance against light scattering to enable durable gas sensor elements.

Segmented hollow fiber membrane bundles incorporate a porous outer filter to trap bubbles, resolving reliability contradictions in artificial lung devices.

A composite proton conducting membrane incorporates a nitrogen-containing additive to form metal ion complexes.

Laminating a modifying porous layer on a microporous polyolefin membrane improves electrode adhesion without deteriorating shutdown properties.

Molecular sieves reduce water content below azeotropic limits, enabling divided wall column distillation to separate components efficiently.

A gas sensor uses a size-selective fluoropolymer filter spanning the cavity to separate target molecules from larger contaminants.

Polymer-coated carbon nanotubes create perpendicular channels that prevent short circuits while boosting ionic conductivity.

Segmented composite membrane structure resolves the contradiction between high oxygen removal rate and low fuel leakage rate in jet fuel deoxygenation.

An electrodialyser produces sodium hydroxide for reacting with mineral ore to extract sodium carbonate.

Alkali-free glass seal with specific silica and zirconia ratios prevents base body erosion during repeated chemical washing cycles.

Molten thermoplastic replaces curable resin to eliminate curing delays and prevent capillary wicking.

Segmented sub-through holes in bonded substrates enable high aspect ratio pathways, resolving manufacturing limits on MEMS device thickness.

Dual filtration segments solid and chemical removal to recycle quaternary ammonium compounds while minimizing waste disposal costs.

Embedding amorphous carbon into zeolite membrane defects blocks non-selective transport, improving water-hydrogen separation selectivity.

Biaxially stretched ePTFE extrudates resolve strength-permeability trade-offs, achieving 135-175 psi burst pressure without coatings.

Acid oxidation removes metallic nanotubes to resolve chirality selectivity and production yield contradictions.

Leucite crystals precipitate within the glass matrix to resist thermal expansion mismatch and prevent gas leakage at high temperatures.

A control unit calculates pump angular velocity using pre-loaded mathematical relations to set blood flow in extracorporeal circuits.

Microfibrous media entraps catalysts to boost heat transfer, reducing reactor complexity while maintaining uniform temperature profiles.

Functionalized silanes modify oxidized silicon dioxide surfaces to prevent biomolecule adsorption and stabilize wetting characteristics.

Quaternary ammonium groups create cyclic five-member rings that resist caustic environments and reduce fouling in electrodialysis membranes.

An inorganic framework membrane concentrates olefins by reducing impurities to one-tenth, resolving durability and cost trade-offs.

Resin-bonded glass fiber paper replaces costly carbon media to cut manufacturing expenses while maintaining transport resistance.

A microfluidic sensor calibration system integrates a drop ejector to expel droplets for real-time flow measurement.

Exfoliated inorganic clays disperse in self-assembling polymers to create membranes that selectively separate water vapor from hydrous gas mixtures.

A channeled ceramic membrane structure directs oxygen ion transport through precisely spaced microchannels.

A composite filter media integrates a nanofiber layer onto a spunbond substrate to enhance filtration efficiency.

A spectroscopic membrane permeation cell integrates infrared-reflection absorption analysis with trans-membrane fluid rate measurement.

Embedded carbon nanotubes create high-flux pathways through polymer skin layers, resolving the trade-off between water permeability and rejection performance.

Incorporating partially saturated benzimidazole linkers into ZIF frameworks resolves low dopant ratios while enabling tunable phase transitions.

A sight tube links a fire department connection to a filtering suite that captures particles, oils, and bacteria from black iron pipe backwash before discharge.

A polyarylene ether sulfone combines isosorbide with tri-functional compounds to create a polymer structure.

Anti-solvent induced phase transition enables rapid alcohol soluble protein membrane formation while precisely regulating pore diameter and microstructure.

Seed-assisted sonication yields sub-micron MOF nanocrystals, resolving the trade-off between crystal precision and productivity in membrane synthesis.

Acid block anion selective membrane retards proton migration via Grotthuss mechanism blocking to enhance electrodialysis current efficiency.

A single-layer separator enmeshes nanofibers and microfibers to create a porous matrix with isotropic strength.

Finish processing eliminates protruding capsule shells from polymer matrices, suppressing location-dependent color differences caused by contact wear.

Gravity-assisted cellular sedimentation in vertical up-flow channels separates plasma without hemolysis, enabling reliable point-of-care diagnostics.

Reversible trimer-to-dimer structural changes in copper(I) complexes enable high-capacity alkene separation while maintaining low heat of adsorption.