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(a) Structure of a hexagonal TMD monolayer. M atoms are in black and X atoms are in yellow. (b) A hexagonal TMD monolayer seen from above. Transition-metal dichalcogenide (TMD or TMDC) monolayers are atomically thin semiconductors of the type MX 2, with M a transition-metal atom (Mo, W, etc.) and X a chalcogen atom (S, Se, or Te).
Nanoparticle monolayers can be used to create functional surfaces that have for instance anti-reflective or superhydrophobic properties. [2] [3] Monolayers are frequently encountered in biology. A micelle is a monolayer, and the phospholipid lipid bilayer structure of biological membranes is technically two monolayers. Langmuir monolayers are ...
A transmembrane domain (TMD, TM domain) is a membrane-spanning protein domain.TMDs may consist of one or several 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, although proteins such as membrane pumps and ion channels can contain polar residues.
Self-assembled monolayers (SAM) are assemblies of organic molecules that form spontaneously on surfaces by adsorption and organize themselves into more or less distinct domains (head group, chain/backbone, and tail/end group). [1] [2] In some cases, molecules that form the monolayer do not interact strongly with the substrate.
TMD may refer to: Arts and entertainment. Team Deathmatch, a gaming mode; ... Transition metal dichalcogenide monolayers, a thin semiconductor material;
Cross-sectional view of the structures that can be formed by phospholipids in an aqueous solution. A biological membrane, biomembrane or cell membrane is a selectively permeable membrane that separates the interior of a cell from the external environment or creates intracellular compartments by serving as a boundary between one part of the cell and another.
Following the proposal of Gorter and Grendel, doubts inevitably arose over the veracity of having just a simple lipid bi-layer as a membrane. For instance, their model could not provide answers to questions on surface tension, permeability, and the electric resistance of membranes.
Macrophages can die when in contact with monolayers of cord factor, but not when cord factor is in other configurations. [1] As the monolayer surface area of cord factor increases, so does its toxicity. [19] The length of the carbon chain on cord factor has also shown to affect toxicity; a longer chain shows higher toxicity. [20]