Articles tagged with Ion Current
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers at Virginia Tech have developed a new method for removing frost from surfaces using electrostatic defrosting (EDF), which can remove up to 75% of the frost without the need for heat or chemicals. The approach uses high voltage to polarize the frost, creating an electric field that detaches microscopic ice crystals.
Researchers at NJIT used artificial intelligence to discover new porous materials capable of revolutionizing multivalent-ion batteries. The AI-driven approach uncovered five entirely new materials with large, open channels ideal for moving bulky multivalent ions quickly and safely. These findings offer a promising solution for the futu...
A computational study conducted by Brazilian researchers found that current density and active species concentration are the main variables affecting capacity loss. The approach successfully mitigated cross-contamination, providing an optimal flow between electrolyte tanks under different operating conditions.
Scientists at NTU Singapore have developed a flexible, human cornea-thin battery that can store electricity from saline solution. The battery could power smart contact lenses with displays and augmented reality capabilities.
Researchers at the University of Missouri have developed a new method using nanopores to advance discoveries in neuroscience and medical applications. The technique allows for real-time detection of dynamic aptamer-small molecule interactions, which can aid in understanding DNA and RNA diseases and drug discovery.
Researchers develop an ionic device utilizing redox reactions to achieve a high number of reservoir states, enabling efficient complex nonlinear operations. The device demonstrated remarkable performance in solving second-order nonlinear dynamic equations and predicting future values with low mean square prediction error.
Researchers at Kyoto University have successfully created stable plasmas using microwaves, a key step towards harnessing nuclear fusion's massive energy potential. The team identified three crucial steps in plasma production and used Heliotron J to generate the dense plasmas.
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 at North Carolina State University used a new laser technique to improve the performance of lithium-ion batteries. The technique creates tiny defects in graphite material, which can enhance battery performance, increase current capacity by up to 20%, and reduce the risk of fires. However, excessive defects can lead to probl...
Researchers at Tokyo Institute of Technology have successfully synthesized a synthetic mechanosensitive potassium channel, exhibiting stimuli responsiveness and selective ion transport. The new ion channel could lead to breakthroughs in therapeutic treatments for ion-channel related diseases.
Researchers at PNNL have developed a sodium-ion battery with greatly extended longevity in laboratory tests. The new electrolyte recipe stabilizes the protective film on the anode and generates an ultra-thin protective layer, providing long cycle life and stability. This technology has potential for applications in light-duty electric ...
Scientists at NTU Singapore develop a new electrochromic window material that can block up to 70% of infrared radiation while allowing 90% of visible light to pass through. The material is designed to be energy-efficient and durable, with improved performance compared to existing technologies.
Researchers have discovered a new technique to locate the diffusion wake's signal in the quark-gluon plasma, a subatomic soup that flowed like a friction-free fluid after the Big Bang. This breakthrough may help scientists understand how matter emerged from this perfect fluid.
Researchers found a solution to overcome ion interference in perovskite transistors, enabling room-temperature operation. The breakthrough uses ferroelectric materials to mitigate ion transport, promising applications in low-cost electronics.
A newly developed LDH-based composite membrane enhances AZIFB performance by improving selectivity and hydroxide ion conductivity. The study achieved an operating current density of 200 mA cm‒‒, along with high energy efficiency of 82.36%.
Researchers use ultra-bright X-rays to measure ion velocity and concentration, providing unprecedented insight into battery performance. The breakthrough discovery opens doors to optimizing battery designs for specific uses.
Researchers from the University of Freiburg and US universities have developed a method to differentiate between individual amino acids in short peptides. They used an aerolysin nanopore to measure the ion current through the pore, enabling the sensitive measurement of peptide size and structure.
A new technique allows for color-tunability in a single GaN-based LED by manipulating emission properties of an atomic-type dopant. The result could pave the way for monolithic integration and comfortable warmer white light from LEDs.
Researchers used mathematical modeling to understand how cells communicate effectively in highly constricted spaces like olfactory cilia. The model showed that relying on Cl- ions instead of Na+ provides advantages for odor detection, enabling reliable responses despite an unstable external environment.
Researchers have successfully controlled plasma instabilities in a way that could lead to the efficient operation of ITER, a key step towards harnessing fusion power. The experiments used high-pressure plasmas and resonant magnetic perturbations to suppress large ELMs and produce benign ones.
Researchers discovered that sharks' electrosensing organs react in an all-or-none manner to tiny electrical fields, unlike skates which respond with graded currents. The study suggests that genes controlling ion channels may be responsible for this difference.
Researchers at UMD developed a new battery type that produces ionic electrical energy used by humans, powering brain functions and muscle movements. The battery uses grass to store energy and can be run at any voltage, making it suitable for medical devices and potential applications in neuroscience.
Researchers at UC San Francisco have cracked the mystery of electrosensation in skates, revealing new insights into how these animals detect prey. The study found that specific ion channels play a crucial role in this process, and that there are similarities between the skate's electrosensory system and the mammalian auditory system.
Researchers at Vienna University of Technology demonstrated that graphene can transport extremely high currents when impacted by highly charged xenon ions. The material's rapid electronic response allows it to withstand extreme currents without damage, making it a promising candidate for ultra-fast electronics applications.
A novel 3D porous aluminum-graphite battery exhibits excellent long-term cycling stability of over 1000 cycles with 89.4% capacity retention at 2C current rate. The design features a uniform carbon layer, alleviating mechanical stress and surface reactions.
New observations from NASA's Van Allen Probes have revealed the ring current behaves differently than previously thought. The high-energy protons in the ring current change in a completely different way from the low-energy protons, indicating a persistent ring current around Earth even during non-storm times.
Researchers at PPPL developed computer simulations capturing the evolution of an electric current inside fusion plasma without using a central electromagnet. The new method achieves high plasma currents by injecting radio-frequency waves and neutral beams into the plasma, showing promise for spherical tokamaks.
Researchers found that potassium current density increased sharply after 2 weeks of neural stem cell differentiation, indicating functional neurons. Neural stem cells from newborn rat hippocampus can be cultured and induced to differentiate into mature neurons in vitro.
Researchers have discovered that HCN channels, essential for the heart's electrical signals, are vital for normal repolarization. A new animal model showed a significant reduction in repolarization phase duration when one subtype of HCN channel protein was missing.
Scientists at Lawrence Berkeley National Laboratory have developed a powerful new sputter process that can deposit high-quality metal films in complex nanoscale patterns. The method, called 'self-sputtering far above the runaway threshold,' uses short high-power pulses to create a dense plasma of metal ions.
Researchers at the University of Illinois have mapped the interior of a key component of the relay system that allows acetylcholine to transmit its message. The muscle nicotinic receptor, a neurotransmitter-gated ion channel, responds to acetylcholine by opening its gate and allowing positively charged ions to flow into the cell.