Articles tagged with Membrane Lipids
Researchers have developed a non-invasive method to track electrical activity in lipid membranes by analyzing the position of surrounding water molecules. This approach reveals unexpected charge fluctuations and complex chemical behavior previously unknown.
Researchers from University of Groningen and Wageningen University created a micro-organism with a mixed membrane, contradicting the idea that this was an unstable mixture of lipids. The new life form was stable and grew at normal speed, supporting the hypothesis that a mixed membrane can be stable.
Researchers discovered that lipid asymmetry plays a key role in activating immune cells. By maintaining balance, the immune system can be controlled and potentially used to treat allergies, inflammation, or cancer. The study's findings suggest new avenues for treating these conditions by regulating membrane composition.
Researchers at Tohoku University have created a novel approach to screen drugs for their potential impact on the heart by cultivating lipid membranes around tiny holes in silicon chips. The team found that lipid membranes attached better to tapered holes, enabling more efficient testing of drug effects on ion channels.
A new study reveals that biological membranes display dynamic properties and exhibit unexpected undulations when embedded in polymer networks. The authors propose a theory elucidating the dynamics of such membranes and identify a new intermediate wavelength regime of membrane undulations.
The German Research Foundation will fund TRR 83 for a further four years to study biological membranes and their functions. Biological membranes with proteins and lipids mediate various functions, from barriers to signal transduction platforms.
Rutgers scientists found that eliminating an enzyme can increase risk of cancer and inflammation, while fine-tuning its activity could prevent obesity and related diseases. A balanced diet is crucial for maintaining the enzyme's balance.
Researchers have discovered that membrane lipids can activate the unfolded protein response (UPR), leading to increased protein production but also heightened sensitivity in cells. This new understanding may provide insights into various diseases, including those caused by viral infections and tumor growth.
Researchers developed a high-speed imaging technique that reveals molecular organization and chemical makeup in living samples, enabling real-time observation of disease progression. This technique could improve understanding of early disease stages and lead to targeted drug treatments.
A computational model of the soybean plasma membrane reveals that similar lipids cluster together due to van der Waals interactions. The research has applications for studying membrane proteins and understanding plant responses to stressful conditions.
Researchers from Oak Ridge National Laboratory used neutron scattering analysis to examine a living cell membrane at the nanoscale, resolving a long-standing debate about lipid molecule organization. They found tiny groupings of lipid molecules that are likely key to the cell's functioning.
Researchers discovered that thin parts of neuronal membranes are vulnerable to amyloid-beta protein, which builds up in Alzheimer's disease. The study found that thinner membrane fragments allow plaque to penetrate the cell, leading to cell death and memory loss.
Rice University researchers have developed a new method to analyze molecules in biomembranes, called SABERS. It uses plasmonic properties of gold nanoparticles to extract structural details from unlabeled molecules. The technique was tested on three structures and found the surfactant layer tilted by 25 degrees.
Researchers discovered that small hydrophobic nanoparticles can insert into lipid membranes but superhydrophobic ones can escape spontaneously. This finding may lead to revised security norms for nanomaterials and raises concerns about public health and environmental toxicity.
Researchers have revealed the bilayer properties of 21 distinct Lipid A types from 12 Gram-negative bacterial species through biomolecular systems simulation. This study provides crucial information for developing new antibiotics against 'bad bugs' like superbugs, with the goal of accelerating drug development and improving treatment o...
Scientists at Universität Bonn have discovered a lipid transfer process crucial for plant cell survival. This process enables the exchange of galactolipids between chloroplast membrane envelopes, facilitating photosynthesis and plant growth.
Researchers have developed a lipid-like peptoid material that can assemble into a sheet thinner than a soap bubble, with properties similar to those of cell membranes. The material can withstand various liquids and repair itself after damage, making it suitable for water purification, sensors, drug delivery, and energy applications.
Biochemists at the University of California San Diego develop synthetic membranes that can grow and remodel themselves like living mammalian cells. This breakthrough enables researchers to better understand lipid remodeling and its applications in drug targeting and disease mechanisms.
Researchers at WPI and Penn used laboratory experiments and computational modeling to study the interactions between molecular motors, filaments, and membranes. They found that a single myosin-1 molecule is not enough to generate sufficient force against slippery membranes, requiring up to 124 molecules working together.
Researchers at Goethe University Frankfurt discovered how yeast cells measure and adapt to the availability of saturated and unsaturated fatty acids in foodstuffs, which opens up new possibilities to understand membrane lipid production and distribution. This finding paves the way for targeting hormone-producing cells with more precision.
A study using molecular simulations suggests that polyunsaturated lipids can alter the binding rate of dopamine and adenosine receptors, affecting cell function in neurodegenerative diseases. This discovery could lead to new therapeutic pathways for regulating receptor binding.
A study published in the Biophysical Journal reveals a hepatitis C virus-derived peptide that kills a range of viruses while leaving host cells unharmed. The peptide targets cholesterol-rich membranes shared by many viruses, offering a promising strategy for developing new antiviral drugs.
A team of researchers found that ferredoxin-5 is necessary for nighttime growth and proper membrane organization in photosynthetic organisms. The protein's electron-donating abilities drive biochemical reactions that alter fatty acid saturation, leading to aberrant membrane structure and impaired metabolic processes.
Researchers found that sediment-entombed marine archaea's growth varies based on changes in ocean oxygen levels, affecting the accuracy of past ocean temperatures. This discovery highlights the need to consider oxygen levels when interpreting the TEX-86 index, a popular method for measuring ancient ocean temperatures.
Researchers have developed a second-generation synthetic water channel that improves on earlier attempts to mimic natural aquaporins. The peptide-appended pillar[5]arenes (PAP) membranes are more stable and easier to manufacture, making them suitable for highly efficient water purification membranes.
Researchers found that adenoviruses use ceramide lipids to trigger an infection by creating small pores in the cell membrane. The virus then multiplies in the nucleus and infects other cells. This discovery could lead to new anti-viral agents for gene therapy and vaccination.
Researchers at UC San Diego have designed and synthesized artificial cell membranes capable of sustained growth. The membranes mimic features of complex living organisms, adapting to environmental cues and supporting persistent phospholipid formation.
Researchers at the University of Basel measured the movement of natural channel proteins in artificial membranes for the first time. The results show that these proteins move up to ten times slower than in their natural environment, a phenomenon linked to membrane flexibility and fluidity.
Researchers from the University of Southampton have identified how the AH2 peptide remodels lipid membranes to form the membranous web, a structure essential for HCV replication. This discovery provides an important lead on how to develop therapeutic drugs to combat Hepatitis C virus
Researchers used advanced techniques to study single molecules and protein interactions on the cell membrane. The findings revealed that lipid rafts, previously thought to move within the membrane, do not exist. Instead, proteins may be anchored at specific positions on the surface, influencing cellular processes.
Researchers reconstituted cytokinesis, the final stage of cell division, using a cell-free system. The system mimics how the cleavage furrow is assembled, with signals directing molecular traffic. This breakthrough expands the scope of study and enables spatial manipulation of components.
A new systematic study of lipid membrane-electrolyte interactions provides insights into biological cell function and potential applications in medical diagnostics. The research uses liposomes to model biological membranes and demonstrates the role of ion adsorption in modulating membrane electrical characteristics.
Tiny bubbles can adapt to changing conditions by reorganizing their membranes, allowing them to sense and react to their environment. This emergent behavior could help design microbubbles for targeted drug delivery and offer new ways to tap chemical energy in biological systems.
Scientists have developed a technique to apply lipid membranes to synthetic surfaces, allowing for the precise positioning of functional biological molecules. This breakthrough enables the creation of novel hybrid bio-electronic devices and paves the way for the development of new drugs and disease treatments.
Atzberger's research focuses on the intersection of math and science, exploring how proteins move within lipid bilayer membranes. He developed a statistical mechanics description that captures essential features of membrane-protein dynamics, allowing for simple yet reliable calculations and simulations.
Researchers from the University of Southern Denmark have found that nonylphenol inhibits earthworms' ability to protect cells from cold damage, making them more vulnerable. The study also revealed that phenanthrene has an opposite effect, increasing cell membrane fluidity and resistance to cold in both earthworms and springtails.
Researchers have developed an X-ray stroboscope to study the movement of lipid molecules, revealing their dynamic properties and behavior. The technique allows for high-resolution imaging of molecular structure and dynamics, shedding light on the biology of cell membranes.
Researchers have developed a new technology to create artificial membranes on silicon surfaces, mimicking those found in living organisms. The process uses commercial chemicals and is the first time anyone has made an artificial membrane without mixing liquid solvents together.
New research in the FASEB Journal suggests that a specific combination of lipids contributes to how living creatures capture sunlight and convert it into energy. This natural combination is strikingly conserved throughout evolution, indicating its importance for ensuring light capture and conversion.
Researchers have identified a mechanism by which tiny gold particles can fuse with cell membranes without damaging cells. This discovery suggests possible strategies for designing nanoparticles that could get into cells more easily.
Researchers from Aarhus University have discovered a hypothesis that explains how the flippase functions in cell membranes, shedding light on genetic errors that cause serious diseases. The study provides new insights into the mechanism of lipid transport and has potential applications for diagnosis and treatment.
Researchers have used a novel imaging technique to study the interaction between an antimicrobial peptide and cell membranes, gaining insights into how it kills bacteria. The findings suggest that the peptide creates nanometer-sized pores in the cell membrane, leading to its disintegration and death.
Researchers developed a new method to create biomimetic membranes, allowing for the study of cell membrane functions and development of novel applications in medicine and biotechnology. The method uses lipid dip-pen nanolithography to write tailored patches of phospholipid membrane onto graphene substrates.
Scientists have successfully assembled model cell membranes on graphene surfaces using Lipid Dip-Pen Nanolithography (L-DPN). This breakthrough enables the study of complex systems and processes in a controlled environment.
Researchers discovered that BAR domain proteins induce strong clustering of phosphoinositides, generating extremely stable protein-lipid scaffolds on the membrane. These scaffolds may contribute to diverse cellular processes by creating lipid phase boundaries and trapping membrane-associated receptor and cargo molecules.
Scientists have identified two distinct patterns in cell membranes: spiral and uniform. The patterns are formed by highly organized lipids and vary according to temperature and lipid molecule type. Further research is needed to understand the significance of these patterns for biological functionality.
Scientists successfully reproduce protein recycling process, tracing Rab's extraction from lipid membrane. The study reveals GDI protein's active role in recycling Rab proteins, shedding light on disease-relevant interactions.
The lipid molecules of membranes, also known as phospholipids, form a bilayer with heads pointing outwards and fatty acid chains hanging inwards. Scientists have discovered enzymes that transport phospholipids across membranes, allowing for the alignment of biomembranes during cell division.
Researchers discovered that sphingolipids form larger domains than expected, clustering together to create micrometer-sized patches in the membrane. The presence of cholesterol affects lipid aggregation, but its role is more complex than initially thought.
A new study by University of Illinois researchers reveals that lipids in the cell membrane form larger domains than previously thought, with cholesterol playing a key role in their organization. The findings challenge current understanding of cell membrane structure and function.
Physicists at TUM and University of Michigan demonstrate the construction of synthetic membrane channels made entirely of DNA. The resulting pores exhibit electrical conductivity comparable to natural ion channels, suggesting potential applications as molecular sensors, antimicrobial agents, and nanodevices.
Researchers discovered two mechanisms that prevent neighboring membrane surfaces from sticking together due to hydration repulsion. The water molecules play a crucial role in maintaining the optimal distance between membranes.
Scientists at Purdue University have identified enzymes and biochemical compounds that are targeted and modified by the dengue virus during infection, suggesting a potential new therapy. Medications used to treat high cholesterol may also inhibit dengue's replication.
Scientists at NIST and NIH discovered that inhaled anesthetics may alter the organization of fat molecules in a cell's outer membrane, affecting nerve cell signaling. This finding opens up a new line of inquiry into the long-standing question of how anesthesia works.
Researchers developed a microfluidic device to produce stable, biocompatible lipid vesicles that mimic natural cell membranes. This breakthrough overcomes previous hurdles by generating precisely sized droplets in an oil environment, producing an oil-and-water membrane for lipid assembly.
Rutgers researchers identified a Type III PI4-kinase as an excellent target for panviral therapeutics. Blocking the enzyme was effective in stopping virus replication and saving host cells. The study found that viruses hijack this enzyme to manufacture a lipid necessary for replication.
Researchers find tau proteins interact with negatively charged lipids on cell membranes, causing protein aggregation and neuronal death. Compounds that prevent protein interaction with membranes offer hope for Alzheimer's patients.
Researchers developed a new tool to study the impact of spatial patterns on living cells, allowing them to control protein placement and study their behavior. The technique enabled them to test breast cancer cells and demonstrate the importance of cell adhesion molecules.
Researchers at the University of Illinois at Chicago have created a biosensor to measure membrane lipid levels, which can act as switches turning on or off protein-protein interactions. This technique allows for real-time quantification and monitoring of lipid molecules, potentially leading to new pathways for disease treatment.
Researchers from the University of Granada and CSIC have made significant progress in understanding lipid membranes used in drug products and gene therapies. The study discovered how certain membranes can invert their surface electrostatic charge, allowing them to function as positive charges in specific circumstances.