Facultatea de Fizică
Universitatea "Al.I.Cuza" Iaşi
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| Titlu: Cristale lichide liotrope în componenţa membranelor biologice |
| Autori: Lucia Nicoleta Mărguţă, Simona Lenuţa Apostu, Raluca Camelia Frunză |
| Afiliere: Facultatea de Fizică, Universitatea Alexandru Ioan Cuza Iaşi
Bd. Carol I, nr. 11, Iaşi, 700506, România |
| Abstract: Liquid crystals are substances that exhibit a phase of matter with properties between those of a conventional
liquid, and those of a solid crystal. Lyotropic mesophases occur as a result of solventinduced
aggregation of the
constituent mesogens, typically amphiphilic, into micellar structures. Our paper is an introduction to the science of these
materials and their applications in the field of biological structures that exhibit liquid crystal behaviour. Lyotropic liquidcrystalline
nanostructures are abundant in living systems. In particular, biological membranes and cell membranes are a
form of liquid crystal. A biological membrane is an enclosing or separating tissue which acts as a barrier within or around
a cell. It is, almost invariably, a lipid bilayer, composed of a double layer of lipidclass
molecules, specifically
phospholipids, with occasional proteins intertwined, some of which function as channels. |
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