Articles tagged with Conductive Polymers
Researchers created an ultra-small vision implant with single-neuron sized electrodes, allowing for thousands of 'pixels' to be stimulated simultaneously. The implant's unique combination of flexible materials ensures long-term functionality and stability.
A team from Pohang University of Science & Technology has developed a memory transistor that can adjust its threshold voltage through photocrosslinking. The innovation combines two molecules with a polymeric semiconductor to form a stable bond, enabling precise control of the semiconductor layer's structure.
Researchers at the University of Washington have solved a long-standing chemical mystery in organic electrochemical transistors (OECTs), which allow current to flow in devices like implantable biosensors. The study reveals that OECTs turn on via a two-step process, causing a lag, and off through a simpler one-step process.
Scientists at POSTECH create conducting polymers with exceptional electrical conductivity, rivaling graphene's performance. The breakthrough achieves ultrafast electron mobility and long phase coherence length, overcoming a major challenge in organic semiconductors.
Researchers from the Institute for Basic Science created QLEDs using a ternary nanocomposite film that enhances carrier delivery to quantum dots, resulting in optimal device performance. The devices exhibit high brightness and low threshold voltage, with no damage when stretched up to 1.5 times.
Researchers developed a nanosized polymer that selectively delivers chemotherapeutic drugs to blood vessels supporting tumor growth. The treatment eliminates colorectal cancer liver metastases and prolongs mice survival after a single dose-therapy.
Researchers discovered novel rheological patterns in connected ring polymers under continuous shear, governed by interplay between hydrodynamics and topology. Ring polymers exhibit unique tumbling motions, such as gradient-tumbling and slip-tumbling, affecting their mechanical properties and viscosity.
The study reveals two distinct dynamic patterns in ring polymers: gradient-tumbling and slip-tumbling. BRs undergo continuous tumbling around the gradient direction, while PCs maintain a fixed conformation with intermittent exchange of rings.
Researchers have developed a printable organic polymer that enables them to measure charge-to-spin conversion in spintronic materials at room temperature, revealing new insights into the mechanics of spintronics. The findings suggest longer spin lifetimes and tunability, paving the way for more efficient and energy-friendly devices.
Duke researchers have developed a new technique to engineer carbon-based semiconductors by wrapping metallic nanotubes in spiral polymers, transforming them into semiconducting forms that can be switched on and off. This method enables the creation of semiconductors that can control electricity with low-energy light wavelengths, openin...
Researchers at MIT have developed a new sensor that can detect tiny quantities of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in drinking water. The device uses lateral flow technology and can measure concentrations as low as 200 parts per trillion, offering a potential solution for consumer testing and industrial applications.
The team developed helical, magnetically active conductive polymers inspired by cyclosporine A, exhibiting unprecedented electron spin activity and anisotropy. The synthesized polymer demonstrated circularly polarized electron spin resonance in the microwave region.
Researchers have developed a new compound using MXenes, which can be used to create lightweight and efficient telecommunication antennas. This innovation has the potential to transform satellite communication and replace traditional manufacturing methods.
Scientists at University of Utah and University of Massachusetts Amherst uncover the physics behind dopant-polymer interactions that explain inconsistent conductivity issues in organic materials. The discovery reveals that a critical mass of electrons triggers collective screening, allowing rest of electrons to flow unimpeded.
Researchers created a polymer electrolyte membrane with an interpenetrating network that enhances fatigue resistance and prolongs the lifespan of fuel cells. The composite membrane exhibits a lifespan of 410 hours, compared to 242 hours for the original Nafion membrane.
Researchers at Linköping University have developed a new, sustainable way to create conductive inks for use in organic electronics. The new process uses benign solvents like water and has been shown to improve material properties and device performance.
Researchers at GIST designed two novel polymers to explore the properties of organic mixed ionic–electronic conductors. The polymers exhibited unique molecular orientation-dependent transient behaviors in organic electrochemical transistors.
A team at Pohang University of Science & Technology has successfully created the world's first plumber's nightmare structure in block copolymers, a complex configuration where polymer chain ends coalesce inward. This achievement showcases the potential for self-assembly in block copolymers and opens up new possibilities for materializi...
Researchers at KAIST develop a fluid switch using ionic polymer artificial muscles that operates at ultra-low power and produces a force 34 times greater than its weight. This technology has the potential to be immediately applied in various industrial settings.
A KAIST research team developed a new conductive polymer material that achieved both high electrical performance and elasticity, introducing the world’s highest-performing stretchable organic solar cell. The team built a device that can be stretched up to 40% during operation, demonstrating its applicability for wearable devices.
Researchers at KAIST have developed high-performance strains producing a variety of compounds, including succinic acid, biodegradable plastics, and biofuels. They provide insights into advancements in polyamide monomer production and synthesizing bio-based polyamides through chemical conversion.
Linköping University scientists create an electrically conductive substrate, eSoil, which enhances crop growth by up to 50% in just 15 days. This innovation enables efficient water and nutrient management, making it suitable for urban environments and areas with limited arable land.
Researchers at Linköping University have developed an aerogel material that can tune the transmission of terahertz signals between 13% and 91%, enabling various applications. The material's absorption property can be adjusted through a redox reaction, making it suitable for long-range signals from space or radar systems.
Embedding nanodiamonds in polymer can advance quantum computing and biological studies. The technique, developed at the University of São Paulo, enables integration of quantum emitters into photonic devices and cell marking applications.
Researchers at Washington State University have developed a single strand of fiber that combines the flexibility of cotton with the electric conductivity of polyaniline. The newly created material showed good potential for wearable e-textiles, including detecting hazardous exposures and tracking human vital signs.
Scientists at Pohang University of Science & Technology develop biopolymer-blended protective layer to stabilize zinc anodes in metal batteries. The film facilitates uniform nucleation of zinc, reducing the formation of twig-like crystals and improving battery longevity.
The researchers propose a hybrid organic–inorganic gas sensor design that enhances gas sensing performance while maintaining sensing speed. The proposed design outperforms conventional sensors in terms of chemical sensitivity to NO2, showcasing impressive durability and higher potential for long-term installation.
Researchers have created a fire-inhibiting, nonflammable gel polymer electrolyte for lithium-ion batteries, increasing ion conductivity by 33% and improving life characteristics by 110%. The electrolyte prevents radical chain reactions during combustion, effectively inhibiting battery fires.
Researchers developed a poly(p-terphenyl isatin) anion exchange membrane with quaternary ammonium and piperidine cations that provides excellent mechanical properties and OH-ion conductivity. The material's stability and tensile strength reach new heights, paving the way for industrialized application of anion-exchange membranes.
The team developed poly(triphenyl piperidinium) based high-temperature proton exchange membranes with improved physicochemical properties, demonstrating enhanced proton conductivity and mechanical stability. The membranes showed promising performance in fuel cell applications, with the highest peak power density achieved at 210 °C.
Researchers found an average of 41 microplastic particles per square meter per day settled from the atmosphere, while sediment samples contained denser particles with higher population densities. The study suggests clothing is likely the prominent source of microplastics to the Ganges River system.
A UH research team is developing innovative chemical processes to transform plastic waste into useful materials, aiming to create new ways to reuse and recycle polyolefins. The project seeks to produce durable thermoset materials that can be recycled multiple times, reducing environmental impact and promoting a circular plastics economy.
Matthew Sfeir will receive a $1.25 million grant to measure the quantum properties of conducting organic polymers using far-infrared and terahertz light sources. The research aims to develop transparent electrical conductors for advanced photonic and quantum-based technologies.
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.
Researchers at the University of Cambridge discovered that ions conduct faster than electrons in conjugated polymer electrodes, challenging conventional wisdom. This finding provides valuable insights into the factors influencing charging speed and offers opportunities to engineer materials with improved performance.
Developing a technique to create conductive polymer wire connections between electrodes enables artificial neural networks that overcome the limits of traditional computer hardware. The approach allows researchers to control and train the network using small voltage pulses.
Researchers at MIT have created a metal-free, Jell-O-like material that can conduct electricity similarly to conventional metals. The material is made into a printable ink, which the researchers patterned into flexible, rubbery electrodes.
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.
Researchers have developed a solvent-free process to manufacture lithium-ion battery electrodes that are greener and cheaper than traditional methods. The new process produces electrodes that can charge faster, with a capacity of 78% in just 20 minutes.
Researchers at GIST have developed an IDT-based polymer with low thermal conductivity and high electronic conductivity, improving thermoelectric performance. The new material demonstrates a 6-fold increase in efficiency compared to conventional materials.
The team developed a working wood transistor that can regulate electric current without deteriorating, paving the way for wood-based electronics. The technology could potentially lead to applications such as regulating electronic plants, which is another strong research area at Linköping University.
Nagoya University researchers have developed a poly(styrenesulfonic acid)-based PEM with an ultrahigh density of sulfonic acid groups, exceeding five times that of typical commercially available membranes. The new membrane exhibits a proton conductivity of 0.93 S/cm at 80°C under 90%RH, six times higher than Nafion or Selemion under th...
Researchers developed an electrochemical sensor using 3D printing to detect Parkinson's disease at different stages by measuring levels of the protein PARK7/DJ-1. The sensor was miniaturized for portability and could be used for continual monitoring with alerts for physicians and patients.
Scientists from the University of Groningen have developed a theoretical framework to explain how charges move through organic solar cells. The study provides insights into the ultrafast charge transfer process, which is crucial for improving the material's efficiency.
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.
Scientists have developed a conductive polymer coating called HOS-PFM that can significantly enhance the performance of lithium-ion batteries in electric vehicles. The coating ensures battery stability and high charge/discharge rates while extending battery life by up to 15 years.
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.
A Chinese research team has successfully synthesized a stable polymer with a nickel backbone that exhibits conductive, thermally stable and interesting optoelectronic properties. The new material can be processed in solution and demonstrates strong length-dependent light absorption with narrow band gaps.
Researchers have created a new type of polymer that can be triggered by light, enabling faster chemical reactions and more efficient energy use. The polymers, which respond to different wavelengths of light, show promise for use in various fields, including pharmaceuticals and future Mars habitats.
Researchers at Linköping University developed an artificial neuron that closely mimics biological nerve cells, with 15 out of 20 neural features replicated. The 'conductance-based organic electrochemical neuron' uses ions to control electronic current and demonstrates biorealistic behavior.
Researchers at Pusan National University have developed a new, energy-efficient process to control the orientation of filler particles in thermally conductive polymer composites. This allows for improved heat dissipation in electronics and batteries, reducing energy costs and extending device lifespan.
A new study published in Marine Pollution Bulletin found significantly higher levels of polyethylene, polypropylene, acrylic, and polyamide in the North Atlantic gyre compared to other offshore locations. Inshore areas exhibited a diverse range of polymers, possibly influenced by proximity to various plastic sources.
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 create a material with disordered molecular structure that conducts electricity well, defying conventional theories. The material's stability and versatility make it promising for new electronic devices.
Researchers at UT Austin developed a stable EEG electrode that can be worn for up to four weeks without maintenance, enabling long-term monitoring of brain activity. This innovation has the potential to revolutionize non-invasive brain-computer interfaces and improve treatment outcomes for stroke patients.
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.
A POSTECH research team developed a new polymer electrolyte with different functional groups, resolving contradictions in mechanical strength and conductivity. This breakthrough enables the creation of artificial muscles that can produce fast switching and great strength.
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.
A researcher at the University of Tsukuba has developed a method for producing electrically conductive polymers with helical configurations, which can convert linearly polarized light into circular polarization. This approach may lead to cheaper and more energy-efficient electronic displays.
Researchers from the University of Tsukuba have synthesized polyaniline in various common solvents, enabling improved production and lower manufacturing costs. The discovery will facilitate versatile processing modes like inkjet printing and advance applications in printed circuit boards and other technologies.