Articles tagged with Permeability
Researchers have created a dark, rubbery film that combines physical textures with light-absorbing nanotubes to keep surfaces ice-free at -50 °C. The film operates using a two-tier defense mechanism, providing both passive and active anti-de-icing capabilities.
Researchers at the University of Rochester create a new process to turn ordinary metal tubes unsinkable by etching micro- and nano-pits on their surface, making them superhydrophobic. The tubes stay afloat in water, even when damaged or submerged for extended periods.
Scientists from the University of Tokyo have created a filter that can capture nanoparticles such as viruses while maintaining air flow, resulting in improved user comfort. The filter uses nanosheets with porphyrin molecules and is capable of achieving a particle filtration efficiency of 96%, exceeding N95 mask requirements.
Bank filtration (BF) was shown to effectively enhance the permeate quality of gravity-driven membrane (GDM) filtration by removing turbidity, particulate organic matter, and micropollutants. This pretreatment also improved membrane stability and increased stable flux, making it a promising strategy for treating polluted source water.
Scientists from SANKEN at Osaka University created an electrically controlled nanogate that can be tailored for specific molecules. The gate's diameter was adjusted using voltage, leading to distinct ion transport behaviors. This technology has the potential to enable precise control over molecule transport and reaction systems.
Concordia researchers propose a novel method using ultrasound-guided microbubbles to stimulate critical cytokine secretion in T cells, potentially re-activating them and increasing the release of proteins needed to fight cancer. The approach could complement existing treatments and improve outcomes.
Researchers create bioinspired directional structures to inhibit the wetting of molten droplets on super-melt-philic surfaces at high temperatures. The structures provide anisotropic energy barriers, hindering the movement of water and preventing wetting.
Researchers create universal method for creating wearable electronics with increased sweat permeability, enabling reliable long-term monitoring of biosignals. The device allows for continuous and stable monitoring of vital signs without signal disruption from perspiration.
Research suggests visfatin stimulates membrane raft clustering, leading to NLRP3 inflammasome activation and podocyte injury. The study highlights the role of membrane raft redox signaling in visfatin-induced inflammation and kidney damage.
Researchers used solid-state NMR to study the Fluc channel protein and discovered a new fluoride ion permeation model. The findings provide insights into the gating mechanisms in the Fluc channel, shedding light on its functionality.
Researchers developed a long-lasting skin coating agent that kills pathogens on the hands, boosting the natural hand barrier. The agent retained high antimicrobial activity even two hours after application, and reduced survival time of coronaviruses and influenza viruses.
Researchers have solved the long-standing puzzle of graphene's proton permeability using ultra-high spatial resolution measurements. Protons are strongly accelerated around nanoscale wrinkles, proving that perfect graphene crystals are permeable.
Researchers from The University of Warwick and The University of Manchester have solved the long-standing puzzle of why graphene is permeable to protons. Protons are strongly accelerated around nanoscale wrinkles in perfect graphene crystals, which could lead to more sustainable hydrogen production.
Researchers from Tokyo Institute of Technology discovered that amide-to-ester substitutions can significantly improve cyclic peptides' membrane permeability, making them suitable for clinical and therapeutic applications. The study used enhanced sampling molecular dynamics simulations to unravel the mechanism behind this effect.
Researchers at KAUST have developed a sustainable method for creating high-performance porous membranes from plastic waste, using bio-based solvents to dissolve polyolefins. This process reduces the environmental footprint of industrial separations and creates access to fresh water.
Researchers developed a novel acid-resistant nanofiltration membrane for efficient treatment of acidic wastewater. The membrane shows high permeation for H+ while maintaining high retention for organics, making it beneficial for 'zero discharge' in strongly acidic organic wastewater reclamation.
A novel permeable reactive barrier configuration, PC-PRB, is proposed to enhance hydraulic performance. The PC-PRB system converges plumes towards the PRB due to passive hydraulic decompression-convergent flow effect, increasing capture width and residence time.
A team of researchers from Kumamoto University has developed a transformable polyrotaxane carrier that can facilitate genome editing using Cas9RNP with high efficiency. The carrier, called amino-PRX, is multi-step transformable and has low cytotoxicity, making it an enormously promising candidate for safe and efficient delivery.
Researchers from Japan and Australia developed a clay film that preserves the quality of fruits like apples by reducing oxygen supply and ethylene diffusion. The film maintained a low respiration rate without depriving the fruit of oxygen, preventing decay.
Researchers develop new membranes to capture more efficient CO2 from mixed gases, addressing trade-off between permeability and selectivity. The technology increases CO2 selectivity by up to 150 times while retaining relative high permeability.
A team of biochemists at the University of Groningen discovered that membrane thickness, lipid phase, and sterol type are key factors in determining permeability. This knowledge can help companies optimize microbial production and improve drug design.
Researchers at the University of Eastern Finland used molecular modeling to investigate nano-plastic transport into cell membranes. The study found that some microplastics can passively penetrate the membrane, potentially causing adverse health effects.
Researchers have developed a novel fluorinated gas membrane material that exceeds the Robeson upper limit, surpassing current bottlenecks in selectivity and permeability. This breakthrough enhances carbon-capture performance in real environments, offering a promising solution for reducing industrial carbon emissions.
Researchers at North Carolina State University created ultrathin, stretchable electronic material that is gas permeable, allowing sweat and volatile organic compounds to evaporate away from the skin. This breakthrough enables more comfortable long-term wear for biomedical or wearable technologies.
A team of researchers at NYU Tandon School of Engineering has developed a novel polymeric material that enhances oxygen permeability in fuel cells, generating more power while reducing the need for expensive materials like platinum. This breakthrough could drive greater adoption of hydrogen fuel cells in transportation and beyond.
A team of Penn State researchers is investigating the deformation properties and poromechanical behavior of anhydrite-containing rock samples. Their goal is to improve models that predict the evolution of permeability and seal in areas where anhydrite is found.
Researchers at the University of the Basque Country and Colorado State University have developed a class of biorenewable, biodegradable plastics that promote the circular economy. The new materials have suitable mechanical and barrier properties similar to commercial materials currently used in packaging.
A Rutgers-led study shows that permeable concrete pavement can reduce pavement temperature by up to 30% and reflect more heat than asphalt pavement. The design improves with high thermal conductivity, further reducing heat output.
Scorpion venom contains compounds that bind to K+ channels, inhibiting their function. High-speed atomic force microscopy revealed the association and dissociation dynamics of a peptide, AgTx2, with the K+ channel KcsA. The study found that AgTx2 binding is facilitated by an induced-fit mechanism, accelerating binding by 400-fold.
Research at AAPS PharmSci 360 reveals that heat and reapplication significantly increase oxybenzone absorption, potentially affecting safety and toxicity. The study aims to establish an in vitro-in vivo correlation and inform maximum UV filter levels.
Scientists from Shinshu University and PSL University have theoretically proved a new mechanism for separating air molecules using nanowindows in graphene. The study shows that the atomic vibration of the nanowindow-rim changes the effective nanowidow size, selectively allowing oxygen from air to pass through, with separation efficienc...
Researchers found that yokeless current sensors are prone to errors when measuring currents in iron conductors due to magnetic permeability. The study provides recommendations for designing more accurate sensors to improve the electrical grid's ability to respond to power surges and prevent catastrophic damage.
Researchers at KU Leuven have created a new membrane that significantly enhances the separation of methane and CO2 in natural gas and biogas. This breakthrough could lead to more efficient production of renewable fuels and chemicals.
Lawrence Livermore National Laboratory researchers developed a simulation to predict the permeability of drug molecules across cell membranes, enabling faster testing and development of nerve-agent treatments. The simulation shaved weeks off compound testing, reducing the time required from six weeks to just 16 hours.
The team of researchers produced a stable porous membrane that is thinner than a nanometre, consisting of two layers of graphene on which tiny pores were etched. The membrane can permeate tiny molecules and may be used for waterproof clothing, water filtration, or gas separation.
Researchers at the University of Cambridge have developed a new method to create highly permeable and selective membranes for molecular-level separation, using ultraviolet irradiation. The process increases the density of the membrane surface, allowing for improved separation of molecules with varying sizes.
A new rigid polymer sieve selectively separates gas molecules based on their sizes, allowing for highly permeable and selective gas separations. This breakthrough could lead to cheaper and more energy-efficient gas separation methods.
Researchers used computer prediction models to test a new docking seal, verifying its performance and improving upon costly experimental evaluations. The study showed significant correlations between experimental values and computer-modeled results, with some discrepancies attributed to extrapolation errors.
The OU research team has made significant discoveries on gas and liquids transport in shale gas reservoirs, developing a quad porosity model that accurately predicts phase behavior and permeability. The model's predictions show improved well performance and prolific production of rich gas-condensate fluids.
Researchers investigated rebamipide's intestinal permeability and found that an absorption enhancer, C12, increased its absorption in the colon. The study suggests using chitosan capsules as a specific delivery carrier for rebamipide to treat colitis effectively.
Researchers used NMR to study water in single-walled carbon nanotubes, revealing distinct properties. The findings could lead to more efficient desalination and demineralization using carbon nanotube membranes.
A recent study published in The New England Journal of Medicine found that higher doses of hemodialysis and more permeable artificial kidneys did not improve survival rates for all patients with end-stage kidney disease. However, selected subgroups, such as women and those treated with a more permeable membrane, showed significant impr...
NC State researchers create polymers that allow larger molecules to pass through, improving both permeability and selectivity. The 'reverse-selective' membranes have potential applications in natural-gas suppliers and petroleum processors.