Theoretical calculations predict a significant difference in the bandgap between ordered and fully disordered ZnSnP2 materials. Experimental measurements support these predictions, suggesting a graded solar cell system that absorbs light across a wide spectrum.
Researchers have designed a new device that converts sea wave motion into electrical energy with high power density and robustness. The proposed electric linear planar switched reluctance generator addresses the challenges of low speed and irregular movements in ocean waves.
Researchers developed a new microscope that uses X-ray excited luminescence microscopy to image material properties. The technique combines optical microscopy's spatial resolution with synchrotron radiation's element and magnetic specificity, enabling the imaging of features as small as one micron.
A team of Japanese researchers developed a new method to 'heal' defects in gallium nitride (GaN) using hydrogen radicals. The process restored photoluminescence to nearly normal levels after chlorine plasma etching, improving optical and electrical performance.
Researchers have successfully transferred gallium nitride LEDs from silicon to copper substrates, reducing the quantum confined stark effect and increasing light output. The new substrate design eliminates absorptive materials, electrode shading, and improves crystal orientation, leading to enhanced efficiency and crack-free structures.
Researchers at National Taiwan University created a two-phase microfluidics technique to systematically stretch polymer strings suspended in fluid flow. By varying wall wettability, flow rate ratio, and Reynolds number, they controlled polymer extension, providing insights into biomolecule structure and behavior.
Researchers developed a new model of fluid dynamics and heat flow in human tears, revealing the cooling effect on tear film after each blink. The model accurately predicts the rate of cooling for both healthy individuals and those with dry eye conditions.
Researchers used diamond anvil cells to apply extreme pressure to argon, heating it with microsecond laser bursts to 2,500 degrees K. The results confirmed kinetic theory as a better model for argon's thermal conductivity than Green-Kubo formalism.
Scientists at Georgia Institute of Technology used acoustic fields to enhance heat transfer, removing vapor bubbles and suppressing insulating film formation. This led to improved boiling efficiency.
Researchers studied adhesion of E. coli to silver- and copper-coated porous clay ceramic surfaces, with silver nanoparticles showing highest affinity for bacteria. Copper may be a less expensive alternative to colloidal silver as a disinfectant coating.
A new technology harnesses power from a single droplet sliding along an electret film, producing electricity when it reaches maximum velocity. The device has potential for low-power portable devices and human body motion harvesting, with a prototype demonstrating peak output power of 0.18 microwatts.
A 'nanoclutch' has been designed to regulate the speed of nanomotors, allowing for stepless control. The device uses electrowetting forces and charged carbon nanotubes to transmit torque between tubes.
Scientists from the University of Cambridge and Toshiba Research Europe Ltd. developed an all-semiconductor quantum logic gate, a controlled-NOT (CNOT) gate, by coaxing nanodots to emit single photons of light on demand. This breakthrough brings researchers closer to creating powerful quantum computers.
Researchers developed a tiny vacuum channel transistor with applications in hazardous sensing, medical diagnostics, and telecommunications; the device operates at low voltages, making it competitive with semiconductor technology.
Engineers developed glucose-sensing microbeads using droplet microfluidics, allowing for non-invasive monitoring of cell cultures. The technique enables detection of local glucose concentrations and gradual changes due to cell metabolism.
Selected acoustic research papers are now available in lay language summaries. The collection explores various topics including microorganism trapping for water purification and the development of speech perception in monolingual and bilingual infants. Researchers also investigate ways to improve orchestra pit acoustics for musicians.
Researchers explore how humans perceive sound in complex environments and track patterns over time. Volcanoes' low-frequency sounds offer insights into eruption behavior, while acoustic diodes promise improved ultrasound imaging.
A study by McGill University researchers calculates that each kilometer of a deep underground mine could produce 150 kW of heat, enough to warm 5-10 Canadian households. The team develops a general model for predicting geothermal energy potential in other mines.
Researchers at MIT and NUS have developed a microfluidic system that uses natural margination to separate red blood cells from unwanted cellular components. The system demonstrates highly efficient removal of bacteria and inflammatory cells, with potential applications in treating sepsis.
A new DNA-based chemical sensor has been developed, capable of discriminating between very similar molecules, even at low concentrations. The system uses carbon nanotubes and fine-tuned DNA strands to produce a measurable electrical signal when exposed to target chemicals.
Scientists at Ben-Gurion University have created bioreactors that increase microalgae biomass yields dramatically. The innovative design, which synchronizes photosynthesis with flow patterns and illumination, has the potential to make microalgae an economically viable source of renewable energy.
Researchers have predicted that a thin plate can be levitated using the Casimir force in certain circumstances. The repulsive force increases as the plate gets thinner, making it easier to lift, but experimental testing is needed to confirm the models.
Researchers created a new electronic memory technology using nanodots, achieving faster data writing and erasing than mainstream charge-storage memory products. The system uses discrete silicon nanodots to store and remove charges, enabling quick and simple data operations.
Researchers created a graphene lens that focuses electrons by controlling the focal length through geometry changes. The graphene lens uses strained graphene to shepherd electrons to a fine point, allowing for high-speed data exchange without traditional cable restrictions.
A new mathematical model predicts optimal treatment length for prostate cancer patients to delay resistance, allowing clinicians to tailor therapy effectively. Intermittent androgen suppression therapy reduces side effects and improves patient outcomes.
Researchers developed a biologically inspired control system that uses memory of past control experiences and outcomes to generate new actions. This approach shows promise for enhancing wind power conversion efficiency, outperforming traditional methods in simulations.
Researchers developed a new pulsed photoacoustic technique to detect a small number of cancer cells in vitro. The technique combines high optical contrast with high resolution, allowing for the detection of single cancer cells.
Researchers from the University of Florida have developed a new technique to create graphene patterns on silicon carbide using ion implantation. This method allows for selective graphene growth at lower temperatures and can be used to create graphene nanoribbons with nanoscale dimensions.
Researchers propose that quantum metabolism explains metabolic changes causing healthy cells to become cancerous, enabling cells to outcompete for space and nutrients. Understanding this process could lead to new cancer treatment approaches.
Princeton University researchers created a cellular automation model to investigate complex tumor-host interactions in cancer, revealing diverse growth dynamics and morphologies under varying pressures.
Cancer researchers employed game theory to study the physics of tumor evolution under stress conditions. They found that modifying their framework accounted for heterogeneous stress patterns, leading to emergent cooperative outcomes between cooperator and cheater cells.
Researchers successfully redirect an electrical discharge from its intended target to a normally less-attractive electrode using a virtual lightning rod created with femtosecond pulses of laser light. This feat demonstrates the potential of using laser-based lightning rods for research and protection.
Researchers from the University of Reading have designed a novel sunlight-measuring tool to detect cloud boundaries with greater precision. The device uses the natural swinging motion of a rising weather balloon to distinguish between clouds and clear air.
Researchers propose incorporating a lens made from new artificial materials to boost inductive coupling, increasing wireless power transfer efficiency. This could improve the efficiency of systems like cordless electric toothbrushes and mobile phones.
Researchers have developed an algorithm to predict how and when proteins misfold, leading to neurodegenerative diseases. The algorithm helps scientists understand protein dynamics and may aid in developing treatments for currently incurable diseases.
Researchers found that hibernating woodchucks have a higher resistance to cardiac arrhythmias due to their unique calcium handling properties. This insight may suggest new strategies for protecting non-hibernating animals from fatal cardiac arrhythmias induced by hypothermic stresses and myocardial ischemia.
Researchers at Lawrence Berkley National Laboratory's Center for Nanoscale Control of Geologic CO2 have engineered bacteria to speed up the formation of solid carbonate minerals, which can permanently trap carbon dioxide. This process could help remove excess CO2 from the atmosphere and mitigate global warming.
Researchers have found that bath salts contain two structurally similar chemicals that produce dissimilar effects on the brain's dopamine transport system. The combination of these chemicals enhances the effects of each other, leading to feelings of euphoria and long-lasting stimulation.
Researchers have discovered a crucial link between mitochondrial function and heart damage caused by chronic alcoholism. Using electron microscopic tomography, the team created the first 3D images of mitochondria, revealing tiny tethers linking them to another cell compartment where calcium is stored.
Researchers have identified a promising strategy for HIV vaccine design using mathematical techniques also used in quantum physics and stock market analyses. They found high-order evolutionary constraints in the Gag region of HIV, which could be targeted by vaccines.
Nicotine, a component of cigarette smoke, can change cell structure, leading to migration and invasion of smooth muscle cells that line blood vessels. This process contributes to the formation of fatty deposits known as plaque, the hallmark of heart and blood vessel disease.
Researchers discover that phytoplankton release their toxic cargo when exposed to blue light, which stimulates a process called exocytosis. This discovery provides a handle on understanding the development of huge phytoplankton blooms and affects several square miles of ocean's upper surface.
Scientists have found that the unfolded end of a protein, ColN-T, can still kill E. coli-like bacteria even after its toxic folded portion is removed. This discovery may lead to new, targeted ways to kill antibiotic-resistant microbes.
Venomous creatures' active surfaces evolve rapidly in response to environmental constraints, while non-active 'structural' surfaces change minimally. This phenomenon supports the Red Queen's hypothesis and may aid in designing novel synthetic proteins with tailored pharmaceutical properties.
The team's proof-of-concept motor utilizes carbon-based switches to activate artificial muscles, which then rotate a shaft without external electronics or hard metal parts. The device has the potential to open doors for softer, lighter electrostatic motors with applications in prosthetics and soft robots.
A new nano-coating developed by Georgia Tech researchers doubles the rate of heat transfer in pool boiling, increasing efficiency and potential applications for electronics and energy systems. The coating enhances rewetting of the solid surface, allowing bubbles to carry away more heat.
A new technique, virtual ghost imaging (VGI), enables imaging even under adverse conditions by harnessing the properties of entangled photons. Researchers used a Bessel beam to create VGI images despite obstacles such as clouds, heat distortion, and offsets.
Researchers created an organic LED light with a warm white color near point A and high color stability by adjusting layer heights. The final OLED has improved performance compared to traditional incandescent bulbs.
To achieve accurate measurements, an ensemble of 400 atomic clocks is required. The researcher uses statistical calculations to counter challenges in distributing data without degrading clock performance. These algorithms rely on understanding past accuracy to establish reliable reference times.
A team of aerospace engineers developed a prototype device that harnesses chest cavity vibrations to generate electricity for pacemakers, delivering eight times the required energy. The technology has potential as a biocompatible alternative to competing methods.