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Biological membrane structure
The lipid bilayer (or phospholipid bilayer) is a thin polar membrane made of two layers of lipid molecules. These membranes form a continuous barrier around
Lipid_bilayer
Biological membrane that separates the interior of a cell from its outside environment
outside environment (the extracellular space). The cell membrane is a lipid bilayer, usually consisting of phospholipids and glycolipids; eukaryotes and some
Cell_membrane
Double layer of closely packed atoms or molecules
A bilayer is a double layer of closely packed atoms or molecules. The properties of bilayers are often studied in condensed matter physics, particularly
Bilayer
Material consisting of two layers of graphene
Bilayer graphene is a material consisting of two layers of graphene. One of the first reports of bilayer graphene was in the seminal 2004 Science paper
Bilayer_graphene
Lipid bilayer mechanics is the study of the physical material properties of lipid bilayers, classifying bilayer behavior with stress and strain rather
Lipid_bilayer_mechanics
A model lipid bilayer is any bilayer assembled in vitro, as opposed to the bilayer of natural cell membranes or covering various sub-cellular structures
Model_lipid_bilayer
Model of cell membranes
functional cell membranes. According to this biological model, there is a lipid bilayer (a two-molecule-thick layer consisting primarily of amphipathic phospholipids)
Fluid_mosaic_model
Enclosing or separating membrane in organisms acting as selective semi-permeable barrier
serous membranes. The lipid bilayer consists of two layers- an outer leaflet and an inner leaflet. The components of bilayers are distributed unequally
Biological_membrane
Type of membrane
transport regulated by proteins embedded in the membrane. A phospholipid bilayer is an example of a biological semipermeable membrane. It consists of two
Semipermeable_membrane
Membrane proteins that adhere temporarily to membranes with which they are associated
integral membrane proteins, or penetrate the peripheral regions of the lipid bilayer. The regulatory protein subunits of many ion channels and transmembrane
Peripheral_membrane_protein
membrane biology, fusion is the process by which two initially distinct lipid bilayers merge their hydrophobic cores, resulting in one interconnected structure
Lipid_bilayer_fusion
Substance of biological origin that is soluble in nonpolar solvents
lipid-bilayer matrix as revealed by magnetic resonance and electron microscope studies. A biological membrane is a form of lamellar phase lipid bilayer. The
Lipid
Layer packing of chain molecules with polar and nonpolar ends in a bulk liquid
bilayers separated by bulk liquid. In biophysics, polar lipids (mostly, phospholipids, and rarely, glycolipids) pack as a liquid crystalline bilayer,
Lamellar_phase
Physiology & Biophysics researcher, academic
structure prediction, peptide–bilayer interactions, cell membrane biophysics, structure of membranes and lipid bilayers, and antimicrobial peptides. He
Stephen_H._White
Oxygen-delivering blood cell and the most common type of blood cell
comprises a typical lipid bilayer, similar to what can be found in virtually all human cells. Simply put, this lipid bilayer is composed of cholesterol
Red_blood_cell
Ability of cell membranes to deform elastically
its environment. The primary constituent of a membrane is a phospholipid bilayer that forms in a water-based environment due to the hydrophilic nature of
Elasticity_of_cell_membranes
Nuclear membrane surrounding the nucleus in eukaryotic cells
envelope, also known as the nuclear membrane, is made up of two lipid bilayer membranes that in eukaryotic cells surround the nucleus, which encloses
Nuclear_envelope
Polymorph of silicon dioxide
bonds. One sheet of the second 2D silica variety is also called hexagonal bilayer silica (HBS); it can have either ordered or disordered (amorphous) structure
2D_silica
Type of membrane protein that is permanently attached to the biological membrane
with integral membrane proteins, or independently insert in the lipid bilayer in several ways. Three-dimensional structures of ~160 different integral
Integral_membrane_protein
Viscosity of the lipid bilayer of a cell membrane
In biology, membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane or a synthetic lipid membrane. Lipid packing can influence
Membrane_fluidity
Electrical behaviour of layered materials
two-dimensional materials can change their electrical properties. Materials such as bilayer graphene have been shown to have vastly different electronic behavior,
Twistronics
In cellular biology, thin layer, membrane, or plate of tissue
these disks are formed from vesicles, giving the lamellar sheet a lipid bilayer that plays a role in water diffusion. Another instance of cellular lamellae
Lamella_(cell_biology)
Composite structure formed by phospholipids
small artificial vesicle, spherical in shape, having at least one lipid bilayer. Due to their hydrophobicity and/or hydrophilicity, biocompatibility, particle
Liposome
Group of fatty molecules suspended in liquid by soaps and/or detergents
packing behavior of single-tail lipids in a bilayer. The difficulty in filling the volume of the interior of a bilayer, while accommodating the area per head
Micelle
Experimental technique in cell biology
binding. In addition, surface deposition of a fluorescing phospholipid bilayer (or monolayer) allows the characterization of hydrophilic (or hydrophobic)
Fluorescence recovery after photobleaching
Fluorescence_recovery_after_photobleaching
this barrier membrane consisted of two molecular layers of lipids—a lipid bilayer. New tools over the next few decades confirmed this theory, but controversy
History of cell membrane theory
History_of_cell_membrane_theory
Combination in the membranes of cells
ordered and tightly packed than the surrounding bilayer, but float freely within the membrane bilayer. While the existence of such microdomains is not
Lipid_raft
birefringence(or order) within lipid bilayers have been used to show how peptide and protein interactions can influence bilayer order, specifically demonstrating
Protein–lipid_interaction
Class of lipids
molecules (e.g., proteins, glycolipids, sterols) in a bilayer such as a cell membrane. Lipid bilayers occur when hydrophobic tails line up against one another
Phospholipid
Synthetic model membrane system
of membrane proteins. Nanodiscs are discoidal proteins in which a lipid bilayer is surrounded by molecules that are amphipathic molecules including proteins
Nanodisc
Type of membrane proteins
sensitive to local stress, most likely tension in the surrounding lipid bilayer. Mechanosensitive channels were discovered in 1983 in the skeletal muscle
Mechanosensitive_channels
Chemical compound
1,2-Dioleoyl-sn-glycerophosphoethanolamine is a non-bilayer lipid of the phosphatidylethanolamine class, it adopts non-lamellar reverse hexagonal structures
1,2-Dioleoyl-sn-glycerophosphoethanolamine
1,2-Dioleoyl-sn-glycerophosphoethanolamine
Protein emerging once on each face of a lipid bilayer
protein or bitopic protein is a transmembrane protein that spans the lipid bilayer only once. These proteins may constitute up to 50% of all transmembrane
Single-pass_membrane_protein
Ability of lipid molecules to move within a bilayer relative to temperature
In colloidal chemistry, one property of a lipid bilayer is the relative mobility (fluidity) of the individual lipid molecules and how this mobility changes
Lipid_bilayer_phase_behavior
Genus of flukes
distinctive tegument that is composed of two lipid bilayers instead of a single bilayer. The double bilayer may be an adaptation to survive the host's immune
Griphobilharzia
Lipid bilayer characterization is the use of various optical, chemical and physical probing methods to study the properties of lipid bilayers. Many of
Lipid bilayer characterization
Lipid_bilayer_characterization
Chemical compound
breathing. It also plays an important role in the study of liposomes and human bilayers. Lung surfactant (LS) is a surface-active material produced by most air-breathing
Dipalmitoylphosphatidylcholine
Dipalmitoylphosphatidylcholine
Chemical compound with both hydrophilic and lipophilic properties
polar-phosphate based head group and two hydrophobic fatty acid chains. Phospholipid bilayers are the major structural component of cell membranes, and serve as the
Amphiphile
Lipid globule proposed as a precursor of living cells
providing the cell with functionally specialized aqueous spaces. As the lipid bilayer of membranes is impermeable to most hydrophilic molecules (dissolved by
Protocell
Synthetic ion channels are de novo chemical compounds that insert into lipid bilayers, form pores, and allow ions to flow from one side to the other. They are
Synthetic_ion_channels
Chemotaxonomy markers of microoorganisms
Phospholipid bilayer. Each phospholipid consists of a polar hydrophilic head (red) and two hydrophobic fatty acid tails. The fatty acid structure affects
Phospholipid-derived fatty acids
Phospholipid-derived_fatty_acids
Any of the structures related to and formed from single sheets of graphene
metal matrix. Bilayer graphene displays the anomalous quantum Hall effect, a tunable band gap and potential for excitonic condensation. Bilayer graphene typically
Graphene_morphology
Method in molecular biology to make pores in cell membranes
high-voltage electric field induces a temporary destabilization of the lipid bilayer, resulting in the formation of nanoscale pores that permit the entry or
Electroporation
chain) region of the surrounding lipid bilayer. Nevertheless, the same membrane protein can be encountered in bilayers of different thickness. In eukaryotic
Hydrophobic_mismatch
Class of lipid compounds
molecules of fatty acids. They constitute about 0.25% of phospholipids in the bilayer. Phosphatidic acid consists of a glycerol backbone, with, in general, a
Phosphatidic_acid
Mathematical model of lipid membranes
hydrodynamic interactions between proteins embedded within curved lipid bilayer membranes, such as in vesicles and other structures. These works use related
Saffman–Delbrück_model
Chemical compound
cell membranes. Stephen G. Sligar. "Nanodisc Technology: Soluble Lipid Bilayer Systems for Structural and Functional Studies of Membrane Proteins".
POPC
Family of viruses
Adenoviridae) are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double-stranded
Adenoviridae
Describes how neurons transmit electric signals
excitable cell as an electrical element (as shown in the figure). The lipid bilayer is represented as a capacitance (Cm). Voltage-gated ion channels are represented
Hodgkin–Huxley_model
Models for cell membranes
Danielli, that it was deduced that membranes have lipids, proteins, and a bilayer. The advent of the electron microscope, the findings of J. David Robertson
Membrane_models
Electric potential difference between interior and exterior of a biological cell
membrane. All animal cells are surrounded by a membrane composed of a lipid bilayer with proteins embedded in it. The membrane serves both as a capacitor and
Membrane_potential
Field of materials science
forms of solar cells includes single-layer organic photovoltaic cells, bilayer organic photovoltaic cells and heterojunction photovoltaic cells. However
Organic_electronics
ethanol can lead to the formations of non-lamellar phases also known as non-bilayer phases. Ethanol has been recognized as being an excellent solvent in an
Ethanol-induced non-lamellar phases in phospholipids
Ethanol-induced_non-lamellar_phases_in_phospholipids
40 nm and 500 nm, and they can either have one lipid bilayer (monolamellar) or multiple lipid bilayers (multilamellar). The positive charge of the phospholipids
Cationic_liposome
Class of lipids
amphipathic nature of glycerophospholipids. They are usually organized into a bilayer in membranes with the polar hydrophilic heads sticking outwards to the
Glycerophospholipid
Process where substrates are converted into more complex products in living organisms
phospholipids and cholesterol interact noncovalently in order to form the lipid bilayer. This reaction may be depicted as follows: Molecule 1 + Molecule 2
Biosynthesis
Type of photovoltaic
the electrons recombine with the holes without reaching the electrode. Bilayer cells contain two layers in between the conductive electrodes (Fig. 6)
Organic_solar_cell
Specialized subunit within a cell
own lipid bilayers (also called membrane-bound organelles) or are spatially distinct functional units without a surrounding lipid bilayer (non-membrane
Organelle
of a phospholipid bilayer, for example into a liposome, causes disturbances to the packing of the lipids on the side of the bilayer that has the larger
Amphipathic lipid packing sensor motifs
Amphipathic_lipid_packing_sensor_motifs
Generic term for amphiphilic substances of plant and animal origin
emulsifier. In aqueous solution, its phospholipids can form either liposomes, bilayer sheets, micelles, or lamellar structures, depending on hydration and temperature
Lecithin
How drugs induce reversible suppression of consciousness
effect is exerted through some perturbation of the lipid bilayer. Several types of bilayer perturbations were proposed to cause anaesthetic effect, including
Theories of general anaesthetic action
Theories_of_general_anaesthetic_action
Membrane-spanning protein domain
alpha-helices or a transmembrane beta barrel. Because the interior of the lipid bilayer is hydrophobic, the amino acid residues in TMDs are often hydrophobic,
Transmembrane_domain
Lipid molecules on cell membrane
compounds (structurally similar to fats and oils) which form the lipid bilayer of the cell membrane. The three major classes of membrane lipids are phospholipids
Membrane_lipid
Class of chemical compounds
all eukaryotic cell membranes, where they extend from the phospholipid bilayer into the extracellular environment. The essential feature of a glycolipid
Glycolipid
Exchange bias or exchange anisotropy occurs in bilayers (or multilayers) of magnetic materials where the hard magnetization behavior of an antiferromagnetic
Exchange_bias
Ion channel enzyme pump found in the membrane of all animal cells
Sodium–potassium pump, E2-Pi state. Calculated hydrocarbon boundaries of the lipid bilayer are shown as blue (intracellular) and red (extracellular) planes Identifiers
Sodium–potassium_pump
Basic unit of life forms
cell from its surrounding environment and is made mostly from a lipid bilayer of phospholipids, which are amphiphilic (partly hydrophobic and partly
Cell_(biology)
Family of waxy lipid molecules
lipids that make up sphingomyelin, one of the major lipids in the lipid bilayer. Contrary to previous assumptions that ceramides and other sphingolipids
Ceramide
Subfamily of viruses in the family Coronaviridae
lipid bilayer in which the membrane (M), envelope (E) and spike (S) structural proteins are anchored. The molar ratio of E:S:M in the lipid bilayer is approximately
Coronavirus
Class of peptides that have antimicrobial activity
antimicrobial peptides allows them to partition into the membrane lipid bilayer. The ability to associate with membranes is a definitive feature of antimicrobial
Antimicrobial_peptides
Israeli physicist
MacDonald, for "pioneering theoretical and experimental work on twisted bilayer graphene." Bistritzer received a bachelor's degree in physics from Tel
Rafi_Bistritzer
Type of magnetometer
to count spins. In 2022 a SQUID was constructed on magic angle twisted bilayer graphene (MATBG) A very common use case of SQUIDs is in magnetometry, where
SQUID
Database of protein structures
with respect to the lipid bilayer. Positions of the proteins are calculated using an implicit solvation model of the lipid bilayer. The results of calculations
Orientations of Proteins in Membranes database
Orientations_of_Proteins_in_Membranes_database
Structural support for biological cells
1: Microfilaments 2: Phospholipid Bilayer 3: Integrin 4: Proteoglycan 5: Fibronectin 6: Collagen 7: Elastin
Extracellular_matrix
InterPro Domain
deformation by insertion of the N-terminal helix into the inner leaflet of the bilayer, pushing the head groups apart. This would reduce the energy needed to
ENTH_domain
Grammostola mechanotoxin 4
binding and adsorption of the peptide to the lipid bilayer by positively contributing to its bilayer partitioning energy. Compared with other ICK peptides
GsMTx-4
lipid bilayer membrane. The hydrophobic surface of the membrane proteins is bound to the apposed lipid fatty acid chains of the membrane bilayer. For integral
Annular_lipid_shell
Topics referred to by the same term
walls consist of a double layer of non-rigid biomolecules Model lipid bilayer, an artificial chemical reconstruction of a biological cell wall Model
Model_(disambiguation)
Family of DNA viruses
the tegument containing both viral proteins and viral mRNAs and a lipid bilayer membrane called the envelope. This whole particle is known as a virion
Herpesviridae
Technique for making thin films
To make an LbL film with 5 bilayers one would deposit W+W-W+W-W+W-W+W-W+W-W, which would lead to a film with 5 bilayers, specifically + - + - + - + -
Layer_by_layer
Novel drug delivery system
Nanomedicine, the general field Micelle, lipid cored Liposome, lipid bilayer shell, an earlier form with some limitations Lipoplex, a complex of plasmid
Lipid-based_nanoparticle
Any small, fluid-filled, spherical organelle enclosed by a membrane
outside a cell, consisting of liquid or cytoplasm enclosed by a lipid bilayer. Vesicles form naturally during the processes of secretion (exocytosis)
Vesicle (biology and chemistry)
Vesicle_(biology_and_chemistry)
Transportation of solutes through membranes
ions and small molecules through biological membranes, which are lipid bilayers that contain proteins embedded in them. The regulation of passage through
Membrane_transport
Protein complex
bilayer. C8 is a complex made of the two proteins C8-beta and C8 alpha-gamma. C8 alpha-gamma has the hydrophobic area that inserts into the bilayer.
Complement membrane attack complex
Complement_membrane_attack_complex
Proteins that are part of, or interact with, biological membranes
translation until it binds to a SRP-receptor on the surface of the lipid bilayer. Translocons are channels in the membrane which allow proteins to be moved
Membrane_protein
Species of amoeba
and is therefore a eukaryote. Its membrane consists of a phospholipid bilayer similar to other eukaryotic organisms.[citation needed] The first description
Amoeba_proteus
Category of enzyme
the cell membrane consists of a phospholipid bilayer. Phospholipid molecules are movable in the bilayer. These movements are categorized into two types:
Flippase
two-atomic-layer limit and modulated by the Fe-Pd content within the bilayer. The FePd bilayer remains half-metallic at room temperature, is structurally robust
Half-metal
unilamellar liposome is a spherical liposome, a vesicle, bounded by a single bilayer of an amphiphilic lipid or a mixture of such lipids, containing aqueous
Unilamellar_liposome
Canadian-American physicist (born 1951)
Wolf Prize in Physics, for predicting the magic angle that turns twisted bilayer graphene into a superconductor. He was born in Antigonish, Nova Scotia
Allan_H._MacDonald
Mix of ionophoric antibiotics
the structure of the gramicidin head-to-head dimer in micelles and lipid bilayers was determined by solution and solid-state NMR. Gramicidins A, B and C
Gramicidin
Single-molecule imaging technique
double-stranded or single-stranded DNA molecules on a supported lipid bilayer within a microfluidic chamber, where hydrodynamic flow aligns them against
DNA_curtain
Ancestor of all current life on Earth
modern genomes. These genes describe a complex life form with a lipid bilayer, and many co-adapted features, including the genetic code and ribosomes
Last universal common ancestor
Last_universal_common_ancestor
Hexagonal lattice made of carbon atoms
properties of bilayer graphene. One way to synthesize bilayer graphene is via chemical vapor deposition, which can produce large bilayer regions that almost
Graphene
Crystalline materials consisting of a single layer of atoms
experimentally confirmed in 2015. First-principle calculations predict that a bilayer Kagome-phase borophene is an anisotropic superconductor with strong electron-phonon
Single-layer_materials
epithelium bilayer and then dissolve in blood serum, allowing high oral bioavailability. These same properties then allow diffusion across the lipid bilayer and
Chameleon_(molecular)
Protein family
million daltons. Both are sometimes called giant hemoglobin or hexagonal bilayer haemoglobin. They are found in many annelids and arthropods (including
Erythrocruorin
Fractal describing electrons in a magnetic field
butterfly, as expected. In 2021 the butterfly was observed in twisted bilayer graphene at the second magic angle. In his original paper, Hofstadter considers
Hofstadter's_butterfly
Protein domain
Fibronectin type II domain is a collagen-binding protein domain. Fibronectin is a multi-domain glycoprotein, found in a soluble form in plasma, and in
Fibronectin_type_II_domain
Outermost layer of many types of the infectious agent
Numerous human pathogenic viruses in circulation are encased in lipid bilayers, and they infect their target cells by causing the viral envelope and cell
Viral_envelope
BILAYER
BILAYER
BILAYER
BILAYER
Girl/Female
Tamil
Rajkumari | ராஜகà¯à®®à®¾à®°à¯€
Princess
Boy/Male
Russian
Helper of man.
Girl/Female
Arabic, English, German, Indian, Russian
Faith; Hope
Girl/Female
Indian, Tamil
Poke Tree
Boy/Male
Tamil
Lord Shiva, The Sun
Girl/Female
Indian, Telugu
Raising
Boy/Male
Indian
A Vest Made of Sheepskin
Boy/Male
American, Australian, Bengali, Biblical, British, Chinese, Christian, Czechoslovakian, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Indian, Irish, Jamaican, Latin, Lebanese, Netherlands, Portuguese, Shakespearean, Slovenia, Swedish, Swi
Rock; Stone; River; Strong
Boy/Male
Hindu
A season
Girl/Female
American, Australian, Chinese, French, German, Latin, Spanish
Universal Battle; Powerful Fighter; Whole Battle; Battle Winner
BILAYER
BILAYER
BILAYER
BILAYER
BILAYER