Articles tagged with Energy Transfer
Felix Castellano and Cédric Mongin discovered a thermally activated delayed photoluminescence mechanism in CdSe quantum dots, which can be controlled by adjusting the size of the nanoparticle and temperature. This process enables unique photoluminescent properties and could be useful for optoelectronic applications.
The new detector module MultiFLEXX enables faster data collection by measuring multiple angles and energies simultaneously, reducing measurement times by a factor of 10. This results in significant gains in acquisition efficiency, particularly useful for applications involving temperature or magnetic field mapping.
Gut microbes produce proteins that regulate NFIL3's circadian cycling, controlling fat absorption and export. This interaction may shed light on why disrupted clocks increase risk for obesity and diabetes.
Researchers have provided high-resolution insights into the light harvesting process of plants under low light conditions. The study reveals the structural features and energy transfer pathways within the C2S2M2-type PSII-LHCII supercomplex, shedding light on its functional regulation and oxygen-evolving activity.
Researchers at Kyushu University developed a novel design strategy for efficient light-emitting molecules using excited-state intramolecular proton transfer, achieving highly efficient thermally activated delayed fluorescence. This approach has the potential to improve the stability of OLEDs and unlock new properties.
Researchers from Imperial College London and Johannes Kepler University have determined the speed of crucial processes in photosynthesis for the first time using ultrafast imaging. The study reveals that the slowest step is not the water-splitting reaction, but rather the light harvesting and transfer process.
Scientists at Princeton University have discovered a vibrational resonance mechanism that enables the efficient transfer of light energy in cryptophyte algae. This finding provides valuable insights for designing artificial light-harvesting systems, potentially leading to more efficient solar energy collectors.
Researchers investigated Nepalese porters' load-carrying techniques and found that they do not use energy-conserving mechanisms like African women. Instead, porters move at a slow speed and take frequent breaks to conserve energy.
Researchers create novel nanotool that allows for simultaneous analysis of large numbers of molecules, enabling testing of protein and gene functionality under deformation. The new method uses self-assembled power gauges to apply precise forces on biomolecules.
Scientists have found that dye molecules can transfer energy quickly to each other, even when they are different types, which could lead to more efficient ways of harnessing sunlight. This discovery was made using special aggregates of four chromophores and was confirmed by X-ray structural analysis.
Researchers created a nanoscale drum using graphene to manipulate vibrations with high tunability and controllable coupling between modes. This enabled the creation of new notes and amplification of vibrations, opening doors to probing fundamental physics and improving sensor sensitivity.
Scientists have developed a system that can efficiently transfer electrical energy between separated circuits using metamaterials. This breakthrough enables wireless charging of mobile devices at longer distances than current technology.
Researchers at Syracuse University have developed a new energy transfer system that combines nanomaterials and biomaterials to produce bioluminescence. The system, demonstrated in ACS Nano, has high-efficient energy transfer between semiconductor quantum rods and luciferase enzymes.
Researchers found a way to control energy transfer between electrons and bismuth crystal lattice, enabling efficient conversion of waste heat into electricity. This discovery could improve the overall efficiency of solar cells by harnessing excess heat.
The Molecular Spectroscopy Group has created new multifunctional materials that mimic the photosynthetic organisms of plants. These materials capture a broad spectral range of light and convert it into chemical energy. They have been applied in various photonic applications, including tunable lasers and light modulators.
Researchers from Cyprus and Greece investigate Förster resonant energy transfer, a radiationless energy transmission process that promotes alternative contactless pathways for energy transfer. The study reveals the importance of understanding FRET in hybrid structures to develop novel devices with high efficiency.
Researchers have created a model microscopic system to demonstrate torque transmission at the nanoscale, overcoming thermal fluctuations and energy dissipation. The device uses colloidal particles to transfer rotational motion, revealing new transmission phenomena not seen in macroscopic machines.
A team of researchers, led by Yuri Lvov, has discovered that the key to thermalization in the FPU system lies in a gradual transfer of energy during coincidences of six modes. This nonreversible process leads to the irreversible transfer of energy and the eventual approach to thermal equilibrium.
Researchers at Sandia National Laboratories have developed a method to predict pressure-dependent chemical reaction rates, enabling better combustion efficiency and reduced emissions. This breakthrough has the potential to improve automotive vehicle design and address climate change.
A new theoretical physics model reveals improved calculations of nitrous oxide photoabsorption, shedding light on its role in stratospheric ozone destruction. This breakthrough improves the accuracy of absorption cross sections and predicts major dissociation pathways.
Researchers at University of Southampton have developed a new hybrid energy transfer system that mimics the processes responsible for photosynthesis. The system enables efficient energy transfer over long distances, with potential applications in optoelectronic devices and synthetic systems.
Researchers at University College London found that certain molecular vibrations in plant cells exhibit non-classical behavior, enhancing the efficiency of energy transfer during photosynthesis. This discovery challenges classical physics explanations and has implications for understanding other biological processes.
Researchers at NC State University developed a new technology to transmit power wirelessly from a stationary source to a mobile receiver, overcoming previous limitations in efficiency and safety. The system can now efficiently recharge electric vehicles as they drive by, with the goal of increasing power transmission to 50 kW.
Researchers created ring-shaped complexes of protein and pigments that absorb more sunlight than natural ones. The designs use a combination of synthetic and natural pigments to capture a broader spectrum of light, allowing for efficient energy harvesting.
A team of researchers discovered that resonance frequency matching, alignment of the magnetic field, and impedance matching are crucial for efficient wireless power transfer. This technology could enable dynamic charging of electric vehicles on highways, increasing their driving ranges indefinitely.
Researchers have discovered a jerky, non-smooth energy transfer from a meteorite or missile to sand and dirt grains during impact. The study shows that the sound wave and grains behave differently than previously assumed, with pulses moving along networks of grains, or force chains.
Biophysicists have discovered that the Ras protein forms an upright pair on the cell membrane, contradicting previous assumptions. This finding has significant implications for understanding cancer development and potential drug targets.
Researchers found that constraining world trade is unlikely to help combat climate change, as emissions mainly originate from the production process of imported goods. The US current account deficit and China's energy mix are significant contributors to CO2 transfers.
Researchers from University of Michigan and MIT create 3-D images of vitamin B12 and its partner molecules twisting and contorting during a crucial reaction called methyltransfer. This process is vital for human health and has potential implications for alternative renewable energy sources.
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 at University of East Anglia will use a new ultrafast laser to study molecular energy transfer and design nanomachines and solar collectors. The equipment supports 2D electronic spectroscopy experiments to investigate the link between light-driven processes and molecular architecture.
Researchers at Berkeley Lab found structural images of CETP interacting with HDLs and LDLs, revealing a tunnel mechanism that facilitates cholesterol transfer. This discovery supports the design of next generation CETP inhibitors to prevent heart disease.
A NIST biophysicist and CU collaborator developed a microfluidic system that records biochemical reactions over milliseconds to seconds in living human cells modified as FRET sensors. The system measures sensor signals at two points in time at a rate of up to 15 cells per second, enabling the study of protein folding or neural activity.
A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils. The technology could increase the driving range of electric vehicles and transform highway travel, overcoming limitations such as limited battery life.
Researchers have discovered a way to create molecular 'circuitry' that can capture, direct, regulate and amplify raw solar energy. By leveraging the collective quantum properties of natural light-harvesting systems, scientists can design efficient antennas that transfer energy quickly and regulatedly.
A new theory of energy transfer in photosynthesis is being developed based on experimental findings that challenge the traditional dipole-based mechanism. Energy is rapidly and efficiently transferred when dipoles are orthogonally disposed, contrary to previous assumptions.
Berkeley scientists have identified quantum entanglement as a natural feature of photosynthesis, enabling efficient energy harvesting and transfer. This discovery holds implications for the development of artificial photosynthesis systems and quantum-based technologies.
A PhD student at the University of Copenhagen has developed a molecular gauge that can measure DNA structure without disrupting it, using luminescent markers. This tool holds the potential to reveal new insights into DNA function and mechanism, as well as understand how new drugs work.
Researchers used FRET to study GAT1 transporters and found correlations between oligomerization state and function. The results show the power of the FRET-based approach for distinguishing among distinct states of proteins.
Researchers develop method to study and control energy transfer pathways in molecules, enabling faster identification of efficient photovoltaic materials. This breakthrough could lead to more efficient and cheaper solar cells.
Researchers at UCLA have found a surprise energy transfer mechanism from the solar wind to the Earth's magnetosphere, which could improve spacecraft safety and reliability. This discovery contradicts long-held assumptions about the control of energy transfer rate.
GridFTP, a protocol developed by Argonne National Laboratory, has been used to transfer unprecedented amounts of data at a rate of 200 megabytes per second. This technology enables large-scale collaborative science projects to share secure, robust, and high-speed bulk data.
The study reveals the precise orientation of the Fenna-Matthews-Olson (FMO) antenna protein on the membrane, allowing for efficient energy transfer. The 'taco shell' protein plays a crucial role in connecting the peripheral chlorosome antenna complex to the reaction center.
Scientists at Stanford University discovered that a hydrogen atom can transfer energy to a deuterium molecule through a glancing blow, changing the conventional wisdom on energy transfer. This finding has significant implications for understanding chemical reactions and interactions between molecules.
Research suggests that transference is more pronounced when an individual's energy resources are low, rather than abundant. Studies have shown that people tend to rely on automatic associations and fail to notice differences when they are tired or at a circadian mismatch.
Researchers created a triple port system for efficient energy transfer between different sources. The new converter transforms energy in a single step, making it more cost-effective and flexible.
Researchers created a hybrid device combining force and fluorescence to detect subtle conformational changes in biomolecules at extremely low applied forces. By probing the dynamics of Holliday junctions, they mapped transition states and deduced the structure of transient species.
Researchers used 2-D spectroscopy to study a bacteriochlorophyll complex and detected 'quantum beating,' where light-induced excitations meet and interfere constructively. This discovery explains the extreme efficiency of energy transfer in photosynthesis.
A study by Berkeley Lab and UC Berkeley reveals that quantum mechanical effects enable nearly instantaneous energy transfer in photosynthesis. Quantum beats, coherent electronic oscillations, play a crucial role in the process.
Researchers have developed a method for wireless energy transfer that uses non-radiative electromagnetic fields to power devices. The technology has the potential to recharge laptops and cell phones without wires, with an object the size of a laptop able to be charged within a few meters of a power source.
A team of researchers from Johns Hopkins University and Los Alamos National Laboratory found that large fluid vortices raid their smaller neighbors in an energy grab, sustaining a steady-state inverse energy cascade. This phenomenon forms a food-chain of vortices, with larger ones preying on smaller ones.
Scientists from 20 institutions collaborate on three grand challenges to study membrane proteins in cyanobacteria and subsurface metal-reducing bacteria. Early results show promising insights into environmental remediation, energy transfer, and natural processes.
The Caltech-led team captured the network prize at SC|05 by transferring 475 terabytes of high energy physics data in 24 hours and sustaining average data rates of over 100 gigabits per second. The team demonstrated the value of collaboration and achieved records while transferring data from running experiments.
Researchers developed a new fluorescent imaging technique using FRET (Fluorescence Resonance Energy Transfer) to track glutamate production in individual brain cells. This breakthrough technology will help better understand disease processes and construct new drugs.
Scientists have developed a new technique to track molecular energy transfer in photosynthesis, revealing distinct energy pathways and quantum mechanical effects. This breakthrough may lead to more efficient artificial photosynthesis systems and sustainable energy sources.
A new method has been developed to study protein folding, allowing scientists to visualize the process at a single molecule level. The technique uses fluorescent dyes and FRET to measure the efficiency of energy transfer between amino acids, providing valuable insights into protein structure and function.
Researcher Chris Molenaar developed a method to follow biomolecule movements in living cells, revealing interactions between proteins and RNA. The technique uses fluorescent probes and microscopy to visualize molecular mobility and interactions, providing insights into cell functioning.
Scientists have successfully measured wind's interaction with the ocean, revealing a pattern consistent with a 1957 theory. The findings could improve climate modeling and prediction of weather and wave activity.
Dlott and colleagues used mid-infrared lasers to excite hydroxyl stretching vibrations in alcohols, then probed with visible light to monitor energy flow. The study found that energy transfer occurs through bond interactions, increasing speed by about 400 femtoseconds for each methylene group.
Researchers developed a new fluorescence resonance energy transfer technique to track changes in protein structure, enabling precise correlation with functions. The method shows potential for understanding issues like biocompatibility of medical implants, blood clotting processes, and cancer metastasis.