Articles tagged with Polymer Architecture
Scientists from Tokyo Metropolitan University have created a new polymer that can effectively transport plasmid DNA into T-cells during CAR T-cell therapy. The polymer, called PAMAM-G2-Gu, is stable, non-toxic, and doesn't use viruses, making it a promising candidate for next-gen gene carriers.
A research team at Göttingen University has developed plasmonic molecules from nanoparticles using a novel process that precisely arranges the particles. This breakthrough enables the creation of large quantities of these compounds, which can be used for various functions in nanotechnology.
Researchers at FAMU-FSU College of Engineering developed two closely related polymers with different thermal behaviors, one soluble in water at low temperatures and the other insoluble. The polymers' unique properties open potential new applications in medicine and protein synthesis.
Scientists successfully synthesized long-chain mobile polymers on metallic surfaces using N-heterocyclic ballbot-type carbenes. This breakthrough enables self-assembly into ordered domains and cooperative behavior, holding promise for new applications in nanoelectronics and surface functionalization.
Researchers create a nanocapsulation strategy to solubilize insoluble aromatic polymers in water, enhancing their processing and development. The approach uses bent aromatic amphiphiles to form micelle-like nanocapsules that encapsulate hydrophobic molecules.
Scientists have successfully created macro-rotaxanes with multicyclic wheels, which hold long molecular chains together to modify the properties of soft polymers. These new structures offer improved damping efficiency and potential applications in next-generation polymers and molecular computing.
Semi-crystalline polymers' structure and properties depend on molecular chain entanglement. The researchers developed a model to predict their microscopic structure and properties, offering potential improvements or replacements with more sustainable materials.
Researchers investigated the fatigue behavior of 2D hybrid organic-inorganic perovskites (HOIPs), discovering they can survive over one billion cycles, outperforming most polymers under similar loading conditions. The study provides insights into designing and engineering these materials for long-term mechanical durability.
Researchers from Shinshu University develop a novel polymer interlocking mechanism to produce tough and additive-free latex films. The rotaxane-based strategy results in unusual crack propagation behavior, increasing tear resistance and preserving flexibility.
Scientists have found that mixtures of polymers can form phase-separated droplets, similar to lava lamps, which interact with cell membranes in unexpected ways. These interactions affect the exterior structure of cells, creating a mosaic of droplets and signaling to the outside.
Scientists at the University of Surrey have developed a new degradable adhesive that can dissolve adhesive residue left on recyclable materials, improving recycling processes and product quality. The additive, similar to commercial packaging tape, allows for faster label detachment and reduces environmental impact.
Researchers at KAUST have developed a simple technique to create highly porous organic polymers, known as poly(aryl thioether), for applications in photocatalysis and optoelectronics. The material exhibits high surface area and tunable porosity, making it suitable for removing organic micropollutants and toxic mercury ions from water.
Researchers studied fondant creation using automated kneading machines and light microscopy, linking it to theoretical physics models. The team found that different preparation methods influence fondant structure and texture, enabling better prediction and control.
Researchers discovered a way to strengthen polymers by introducing weaker bonds, increasing resistance to tearing up to tenfold. The approach doesn't alter other physical properties and can be used to improve the toughness of other materials like rubber.
Researchers from Tokyo Institute of Technology explore co-polymerization of glycol nucleic acid monomers with dicarboxylic acids to produce branched and linear xeno nucleic acid polymers. These findings suggest that diverse prebiotic organic molecules could have led to population-level differences in abundance of genetic polymers.
Researchers at HSE MIEM developed a theoretical model predicting optimal parameters for polymer coacervation, which will enhance the efficiency of polymer synthesis. The model considers factors such as polymer chain length and attraction strength, allowing chemists to synthesize tailored polymers.
A team of researchers from China and the UK has developed new ways to optimise the production of solar fuels by creating novel photocatalysts. These photocatalysts, such as titanium dioxide with boron nitride, can absorb more wavelengths of light and produce more hydrogen compared to traditional methods.
Researchers at Pohang University of Science & Technology (POSTECH) developed a technology for high-performance organic polymer semiconductors that exhibit both stretchability and electrical functionality. The molecular brake prevents slipping under stretching conditions, preserving up to 96% of electrical performance.
Scientists have developed a multi-layer, thin film sensor that automatically realigns during healing, mimicking human skin's layered structure. The material, comprising PPG and PDMS polymers, can self-heal and restore functionality without human input or effort.
Researchers developed a method to characterize nanomaterials using sequential infiltration synthesis in nanostructured polymers. This technique allows for the creation of extremely small structures on semiconductor surfaces, enabling further miniaturization of next-generation microelectronic components.
Researchers engineered a lightweight material by fine-tuning interlayer interactions in 2D polymers, retaining desirable mechanical properties even as a multilayer stack. The material's strong interlayer interaction is attributed to hydrogen bonding among special functional groups.
A bilayer, nonwoven PET microfiber/polyvinylidene fluoride nanofiber membrane acts as a separator for LIB systems and prevents short circuits. The substrate significantly improves the mechanical and thermal properties of solid polymer electrolytes, enabling cells to operate over 2000 hours.
Researchers have successfully printed flexible electronics using polypyrrole and demonstrated its compatibility with living organisms, paving the way for patient-specific implants. The technology has potential applications in real-time health monitoring and treating conditions like epilepsy or pain.
The new technique allows for the production of a dozen different soft polymer material morphologies, including ribbons, nanoscale sheets, rods, and branched particles. By precisely controlling three sets of parameters during manufacturing, researchers can fine-tune the morphology of polymeric materials at the micro- and nano-scale.
Researchers have developed a method to transform lignin, a biopolymer found in biomass, into chemically recyclable plastics using light. This breakthrough could advance the circular plastic economy by producing next-generation materials with reduced waste.
Researchers at the University of Missouri have designed a soft and breathable material that can be worn on the skin without causing discomfort. The material, made from liquid-metal elastomer composite, has integrated antibacterial and antiviral properties to prevent the formation of harmful pathogens.
ETH Zurich researchers have created a range of affordable fluorescent inks with machine learning algorithms to determine the right molecular subunits. The new dyes can be used for security features and applications like solar power plants and organic light-emitting diodes.
Researchers at KAUST have developed a soft and flexible electronic 'e-skin' that can detect minute temperature differences between inhalation and exhalation, as well as touch and body motion. The material's island-bridge atomic structure provides an inherent softness and flexibility ideal for on-skin applications.
A Japanese research team successfully constructed the first polymeric Weaire-Phelan structure, a previously theoretical form predicted to be the most efficient solution for a century-old tessellation problem. The structure was achieved through a novel polymerization-induced phase separation method.
Researchers at Brookhaven National Laboratory create a new way to guide the self-assembly of novel nanoscale structures using simple polymers as starting materials. The team describes their approach in a paper published in Nature Communications, which shows that different shapes have dramatically different electrical conductivity.
A transdisciplinary team of QUT researchers has proposed a multi-pronged approach to tackle plastic pollution, combining DNA-like encoding of plastics with international law. The technology aims to trace plastic waste back to its source, enabling the identification of polluters and eventual phasing out of plastics.
Researchers have successfully segregated oppositely helical supramolecular polymers in a solution using audible sound, inducing surface vibrations and advection currents. This approach allows for the spatiotemporal control of chiral supramolecular systems, enabling the segregation of multiple aggregates.
Researchers used electron microscopy to study a new-age polymer's molecular structure and combined it with computer simulations to predict its electrical function. The findings suggest that aligning chains and rearranging molecules can improve electrical conduction in polymers.
Researchers have validated a new theory for molecular diffusion in polymer matrices, explaining how molecules move through complex media. The study found that temperature and molecule size significantly impact transport rates, enabling the design of more selective polymer membranes.
A University of Illinois team discovered liquid crystalline epoxy resins with high thermal conductivity, outperforming common polymers by up to 5 times. The breakthrough was achieved by precisely controlling the lengths of ethylene repeat units in the polymer structure.
Researchers at Hokkaido University have developed a one-pot-and-one-step synthesis procedure to create long and geometrically interlinked polymer molecules. This process can produce a wide range of advanced materials with applications in drug delivery, data storage, microelectronics, and nanolithography.
Researchers have developed stronger and more ductile microlattice materials by reducing unit sizes from 60 μm to 20 μm, enabling tailoring of mechanical properties. The size effect results in higher fracture strain and strength, making these materials suitable for various structural and functional applications.
Researchers at UT Austin developed a semicrystalline polymer that combines strength and flexibility, overcoming challenges of mixed materials in robotics and electronics. The new material is 10 times as tough as natural rubber and can be controlled with light.
Researchers have created a wearable insect repellent by encapsulating IR3535 in biodegradable polymer and shaping it into a ring or bracelet. The repellent continuously evaporates, forming a barrier for insects, offering several hours of protection.
The NTU-developed wind harvester generates a voltage of three volts at wind speeds as low as two meters per second, powering commercial sensor devices. The device can also store excess charge for extended periods in the absence of wind, serving as an alternative to smaller lithium-ion batteries.
HKU researchers create ultra-strong aerogels by combining aramid nanofibers with polyvinyl alcohol, outperforming traditional aerogels in load-bearing structures. The new material has vast applicational values for diverse functional devices.
Researchers at the University of Massachusetts Amherst discovered that uniformly charged macromolecules can self-assemble into large structures through dipole-dipole interactions. This finding highlights the importance of dipoles in biological assembly processes and offers new insights into life's fundamental mysteries.
Researchers develop a method to synthesize bare aromatic polymers using dendrimer support, enabling high solubility and transfer to other materials. This innovation opens up new possibilities for creating hybrid materials with unique properties.
Researchers from Osaka University successfully modulated the thermal switching temperature of block copolymers to create a tunable thermal switch. This innovation enables practical functionality for flexible organic electronics at low cost.
Scientists from Shibaura Institute of Technology developed a simple method to produce polyethylenimine-based network polymers by dissolving triaziridine compounds in water. The resulting porous polymers exhibit versatile properties, including tailored morphological and mechanical characteristics.
Researchers at UBC Okanagan have created wearable human motion devices that can track a multitude of activities, including breathing and muscle contractions. The devices use a two-dimensional inorganic nanomaterial called MXene alongside a conductive polymer for electromagnetic interference shielding.
Researchers at the Beckman Institute for Advanced Science and Technology observed structural chirality in achiral conjugated polymers, which can enhance solar cells' charge capacity. This discovery introduces new opportunities for research at the convergence of biology and electronics.
Researchers have developed a new degradable polymer material with improved biodegradability, outperforming existing bioplastics like PLA or PCL. The material can degrade by over 70% in a week, making it suitable for applications such as thermosensitive nanoparticles for medicine administration.
Scientists at UMass Amherst developed a new theory to predict how double-gyroid networks form in polymer superstructures. The theory reveals the hidden geometry allowing polymers to assume this complex shape.
Researchers developed a new technique called dual-detection impulsive vibrational spectroscopy (DIVS) to measure two distinct types of vibrational signals. DIVS enables synchronous measurement of THz- and fingerprint region vibrations, offering high temporal resolution for real-time chemical analysis.
Researchers at the University of Illinois have developed a new type of water filtration membrane that mimics the natural process of morphogenesis. The membranes, made from soft polymers, exhibit complex 3D structures that allow them to efficiently separate pollutants from water.
Researchers at MIT have developed a new material that is stronger than steel and as light as plastic, with potential applications in car parts, cell phones, bridges, and other structures. The material, called polyaramide, self-assembles into sheets and has unique properties, including high elastic modulus and impermeability to gases.
Researchers developed an auto-switchable phosphazene-based catalyst to create well-defined diblock terpolymers in a single step, overcoming the limitations of traditional two-step polymerizations. This innovative approach offers vast potential for producing diverse polymers for various industrial applications.
A research team at the Beckman Institute for Advanced Science and Technology developed a chemical process to mimic trees' vascular systems in foamed polymers, adding structure and enabling directional fluid transport. The team discovered that increasing or decreasing gelation time enables direct control over the foam's cellular structure.
Researchers at Nagoya University and Zeon Corporation have developed a new thermoplastic rubber material, i-SIS, with an extremely high tensile toughness of 480 MJ/m³. The material's impact resistance surpasses that of glass-fiber-reinforced plastic (GFRP), making it suitable for use in automotive and other industries.
A team of researchers has developed a polymer that can form folded (ordered) and unfolded (disordered) domains using UV irradiation. The polymer's structure is controlled by non-bonding interactions between monomers, allowing it to be manipulated after formation.
Researchers at OIST Graduate University developed a new 3D scaffold design using 2-photon lithography that guides regenerating neurons in the right direction. The scaffolds promote directional growth of neurons, bridging gaps and repairing connections after spinal injuries.
Researchers at Durham University have developed a sugar-containing polymer coating that can repair damaged artificial joint implants by mimicking the way cartilage works to lubricate human joints. The coating uses water to create a slippery surface, protecting the surfaces from wear and tear.
Researchers developed a new membrane-based separation technology using MOF nanoparticles, which consumes up to 90% less energy than traditional methods. The technology overcomes interfacial adhesion problems by fabricating compatible MOF fillers, improving membrane performance.
Researchers designed a novel polymer to bind and strengthen silica sand for binder jet additive manufacturing, creating structures with intricate geometries and exceptional strength. The study demonstrates a 300-times-weight limit for a 3D-printed sand bridge.