Articles tagged with Electrostatics
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Researchers develop comprehensive model to analyze electrostatic and contact interaction between low-velocity lunar dust and spacecraft. The study focuses on the effects of plasma sheaths and electric charges on dust particles, aiming to improve long-term extravehicular activity and permanent station establishment on the lunar surface.
Researchers developed a new electrolyte additive to overcome low-temperature limitations of aqueous zinc metal batteries, enabling highly reversible zinc anodes. The innovation highlights the importance of interfacial engineering and cost-effective materials design in advancing energy storage technologies.
Scientists have found that a tiny worm uses static electricity to jump high into the air and attach to flying insects, with a charge of hundreds of volts initiating an attractive force. The researchers used experiments to investigate how electrostatic forces affect the success rate of nematodes connecting with insects.
Researchers developed highly conductive assemblies of gold complexes using ion-pairing, enabling solution-processed fabrication of conductive materials. The benzoporphyrin Au III complex expanded π-system increases dispersion forces, overcoming electrostatic repulsion between identically charged molecules.
Researchers develop triboelectric nanogenerators using closely packed small beads, which transfer electric charges efficiently to produce electricity. The use of melamine-formaldehyde beads offers a cost-effective alternative to traditional TENG technology.
Physicists from ISTA reveal that the contact history of materials determines how they exchange charge, explaining the unpredictability of contact electrification. By analyzing identical materials, they discovered a triboelectric series and found that repeated contact allows samples to evolve and order correctly.
Researchers have developed a new, low-cost triboelectric nanogenerator (TENG) that harnesses the power of tacky tape to generate electricity. The device produces up to 53 milliwatts of power and can light over 350 LED lights or power a laser pointer.
Researchers at Northwestern University have finally uncovered the mechanics of static electricity generated by rubbing objects together, explaining how forces on different parts of an object create electrical charges and a current. This breakthrough could lead to new solutions for industrial fires, pharmaceutical dosing, and other issu...
A new self-powered electrostatic tweezer offers superior accumulation and tunability of triboelectric charges, enabling flexible manipulation of objects in various scenarios. The device eliminates the need for complex electrode arrays and external power sources.
Researchers found that butterflies and moths collect enough static electricity while flying to attract pollen from flowers across air gaps of several millimeters or centimeters. This discovery suggests a trait that can be adaptive, allowing evolution to act upon it through natural selection.
A new technology combines femtosecond laser-designed lubricated slippery surfaces with electrostatic interactions to manipulate droplets. This allows for diverse working conditions and functions, including driving droplets on inclined surfaces, manipulating various liquids, and sorting particles.
Researchers developed a flexible static electricity-based sensor that detects objects within a certain range. The new technology has potential applications in smart devices and wearable technology, such as enhancing phone screens to recognize more finger gestures or detecting drowsiness while driving.
Researchers found that adding water to coffee beans before grinding reduces static electricity, resulting in less wasted coffee and cleaner grinders. Grinding with water also produces more consistent and intense espresso. The study's findings have significant economic implications for the $343.2 billion coffee industry.
Researchers found that nematode worm larvae can leap through the air and attach themselves to passing insects when exposed to certain electric fields. They observed dauer larvae consistently moving towards the lid of a petri dish, some reaching it in a fraction of a second.
Researchers at the University of Bristol discovered that static electricity can attract ticks to hosts, making it easier for them to find and attach. This finding has significant implications for reducing tick bites and spreading diseases.
The study developed conductive hydrogels with high sensing performance, excellent stretchability, and tensile strength, thanks to the use of cationic cellulose nanofiber-dispersed liquid metal. The hydrogels demonstrated a very high sensing sensitivity and good repeatability and durability.
Researchers utilize liquid crystal droplets to visualize electric field distribution within microelectrodes, revealing rotational and translational behaviors under applied voltage. The technique provides high spatial resolution and detection accuracy, enabling defect location analysis.
Researchers find that electrical discharge in Martian dust storms could be a major driving force of the planet's chlorine cycle. The study reveals high yields of chlorine gases from common chlorides when electrified by Martian conditions, indicating a promising pathway for converting surface chlorides to atmospheric phases.
Researchers at City University of Hong Kong develop a self-charging electrostatic face mask that can continuously replenish its electrostatic charge through the user's breathing. The mask provides high-efficiency airborne particle removal with 95.8% effectiveness after 60 hours of testing.
The study explores the impact of counteranions on stacked ion pairs, leading to variations in energy and orientation. The researchers developed a diverse set of assemblies with tunable properties by incorporating alkyl groups into positively charged squarylium dyes.
A team of researchers created a simple and inexpensive triboelectric nanogenerator using store-bought double-sided tape, plastic film, and aluminum metal. The device was able to produce higher power densities than previous versions, making it suitable for powering everyday devices such as LEDs and laser diodes.
Scientists at Tokyo Tech developed an electrostatic actuator capable of generating forces comparable to human muscles, but with lower voltage requirements. The device uses ferroelectric liquid crystals and a 3D-printed electrode to produce contraction and expansion at low voltages.
Researchers have demonstrated a power-efficient component for demultiplexing operation using silicon photonic MEMS, enabling efficient wavelength demultiplexing for fiber-optic communications. The compact footprint of the add-drop filter allows fast operation compared to established MEMS products.
The study reviews electrostatic atomization minimum quantity lubrication (MQL) mechanism and applications, highlighting its benefits in clean cutting and biolubricant development. Researchers propose future directions for improving coordination parameters and equipment integration.
Researchers at Gwangju Institute of Science and Technology improve triboelectric nanogenerators by using mesoporous carbon spheres to enhance charge transport and surface charge densities. The device achieves a 1300-fold higher output current, enabling potential sustainable energy harvesting.
Researchers at Rice University have created 2D chiral superstructures using three-sided pyramids, which could lead to breakthroughs in metamaterials. The structures, composed of ultrathin assemblies of particles, incorporate left-handed and right-handed domains and exhibit unique optical properties.
Researchers developed a simple physical model to explain DNA deformations caused by ions and temperature changes. The model reveals that salt-induced twist changes are driven by electrostatic interactions, while temperature-induced changes are related to DNA diameter variation. These findings provide new insights into the molecular mec...
A research team from City University of Hong Kong developed a multi-functional electrostatic droplet tweezer that can precisely trap and remotely guide liquid droplets on flat and tilted surfaces, as well as in oil mediums. The technology offers precise and programmable droplet manipulation with high velocity and agile direction steering.
Researchers have discovered stable and mobile excitons in metal, a breakthrough that could speed up digital communication. Excitons can travel rapidly through metal without electrical charge, making them promising candidates as an alternative to free electrons.
The researchers discovered two modes of transport that influence whether and how proteins attach themselves to a surface. The team found that rougher surfaces promote longer flights, while less hydrophobic surfaces facilitate quicker localized adsorption/desorption.
Researchers at Argonne National Laboratory discovered how microparticles can change direction when an electric stimulus is interrupted and reapplied with the same orientation. This emergent behavior has potential applications in microfluidic pumps for biomedical, chemical, and electronics applications.
Scientists at the University of Fukui developed a new triboelectric fabric that generates electricity from body movement, maintaining flexibility and breathability. The fabric, called AF-TENG, can power low-powered devices like LEDs and calculators, demonstrating its potential in wearable technology.
Researchers developed a technology to rapidly disinfect and recharge N95 respirators, restoring their filtration efficiency. The non-thermal method reduces plastic pollution and conserves electricity, limiting mask consumption to dozens per year.
Researchers at UC Berkeley created an insect-scale robot using electrostatic adhesion, allowing it to traverse complex terrain and make sharp turns with unprecedented speed and control. The robot can survive being stepped on by a human and operate for up to 19 minutes on battery power.
Engineers at UC Berkeley created an insect-scale robot using electrostatic adhesion to traverse complex terrain and avoid obstacles with incredible agility. The robot's design allows it to swerve, pivot, and make sharp turns with unprecedented speed and control.
Researchers at NYU Tandon School of Engineering developed stimuli-responsive coiled-coil fibrous hydrogels that can be triggered by temperature, pH, or light. These smart biomaterials have potential for tissue engineering, drug delivery, and wound healing applications.
Researchers reviewed various nanofibrous membranes for their filtration efficiency and pressure drop, highlighting the trade-off between mechanical adsorption and electrostatic adsorption in nanoparticle removal. Six filter classifications were also presented, including net/nanofiber and conductive filters.
Researchers at Lancaster University have demonstrated that the recent observation of field effect in superconductors can be explained by a simple mechanism involving electron injection. The team's findings unambiguously refute the claim of novel physics behind the phenomenon.
Researchers monitored honeybee hives to study their electrostatic field (ESF) data, revealing communication patterns and impact of pesticides on bee health. The findings indicate that weakened communications can signal colony stress and damage from environmental pollutants.
Researchers at NIST and VCU have developed a new approach to building better 'nanopore' biosensors by measuring the energy required for molecules to interact with these sensors. This laser-based heating method enables faster and more accurate measurements, potentially revolutionizing disease detection and treatment.
A team led by Associate Professor Jonathan Boreyko at Virginia Tech has developed a potential solution for frost removal using electrostatics. By creating an electric field, the negatively-charged top of the frost sheet attracts positively charged ions in water, causing frost particles to jump towards and break away from their substrate.
For the first time, scientists have shown that positively charged iodine (iodonium) can favorably interact with a silver cation, breaking the strong electrostatic repulsion. This unexpected affinity is useful for various applications, including cloud seeding and artificial rain generation.
The article reviews antimicrobial peptides (AMPs) with anticancer properties, highlighting their potential use in tumor therapy due to their ability to interact with negatively charged cell membranes. Recent advances and challenges in the application of these peptides are also discussed.
A Northwestern University research team has uncovered new findings on the role of ionic interaction within graphene and water. The insights could inform the design of energy-efficient electrodes for batteries and provide backbone ionic materials for neuromorphic computing applications.
Scientists have developed a method to balance the charge in optoelectronic devices using selective electrostatic doping of 2D materials. The technique, which involves controlling the voltage in a precise manner, enables the creation of powerful energy devices with improved characteristics.
Researchers found that nanofiber masks can be reused up to 10 times after spraying ethanol, while melt-blown filters lose efficiency after cleaning. This process inhibits pathogens and maintains air filtration rate.
Researchers developed a new descriptor named orbital electrostatic energy (OEE) to describe electrostatic properties of ions and arene π systems. OEE strongly correlates with binding energies, especially for multiply-shaped ion-π complexes.
Using electrostatic charge, researchers created crystalline materials resembling table salt and opals. This process allows for mass production of functional materials with adjustable size and shape.
The researchers developed a low-cost and straightforward liquid phase process to create an active sulfur material and carbon nanofiber composite. This composite showed higher discharge capacity and better cycle stability than traditional lithium-ion secondary batteries. The new battery technology has the potential to revolutionize the ...
Researchers have developed a new type of nanoelectromechanical relay enabling reliable high-temperature, non-volatile memory. The invention is crucial for all-electric vehicles and more-electric aircraft requiring electronics that can operate in extreme temperatures with high energy efficiency.
Researchers studied green fluorescent protein to understand how electric fields impact its twisting motion. They found that tuning the chromophore's electronic properties can significantly alter this process. This discovery could lead to developing light-sensitive proteins for biological imaging and optogenetics.
A new approach to electrostatic layer deposition has been reported, leading to efficient perovskite solar cells. The technique produces uniform electron transport layers without the need for a vacuum environment, enabling the creation of high-efficiency solar cells with improved power-conversion efficiencies.
A new technology has been developed to collect and convert static electricity into usable energy, which can be used to power devices such as sensors and calculators. The researchers successfully increased the amount of energy generated by a 'triboelectric nanogenerator' using a nanoimprinting process and poling technique, achieving a c...
Researchers at Hokkaido University developed adhesives inspired by mussels that utilize electrostatic interactions to stick to negatively charged surfaces in saltwater. The adhesiveness was largely thanks to the interaction between positively charged residues on the polymers and the negatively charged surfaces.
Northwestern University researchers have discovered a new method to control the formation of scroll-like cochleate structures, which could inform future drug-delivery strategies. By regulating electrostatic interactions and elastic energies, they were able to capture and release macromolecules in a size-selective manner.
Researchers developed a new model that shows rubbing two objects together produces static electricity by bending tiny deformations on the surface of materials. This phenomenon, called flexoelectricity, arises from the separation of charge in an insulator due to deformations such as bending.
A novel plasma water treatment method by electrical discharge has been developed, producing drinking water as suitable for consumption as ozonation, without carcinogens or high costs.
The researchers used electrostatic force microscopy with synchronized laser pulses to create a movie of recombination as it occurred, allowing them to spot speedy electrons and holes in motion. This new method may improve the efficiency of solar panels by reducing energy losses due to recombination.
A study by the University at Buffalo suggests that tiny structural changes occur at the surface of materials when they come into contact with each other, leading to the triboelectric effect. This phenomenon has the potential to unify existing theory and create more sustainable power sources for small electronic devices.
Researchers at Binghamton University have developed a new type of microelectromechanical system that uses electrostatic levitation to provide a more robust system, reducing damage to MEMS switches in cell phones and power lines.