Elasticity and phase behaviour of biomimetic membrane systems containing tetraether archaeal lipids was written by Vitkova, Victoria;Mitkova, Denitsa;Yordanova, Vesela;Pohl, Peter;Bakowsky, Udo;Staneva, Galya;Batishchev, Oleg. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2020.Category: alcohols-buliding-blocks The following contents are mentioned in the article:
Here we report on the bending elasticity and phase behavior of model lipid membranes containing tetraether archaeal lipids. The bending elasticity modulus of membranes composed of palmitoyl-oleoyl phosphatidylcholine and glycerol dialkyl glycerol tetraether extract from the archaeon Thermoplasma acidophilum′s plasma membrane is measured by anal. of the thermal shape fluctuations of nearly spherical giant unilamellar vesicles (tens of micrometers in size). The bending rigidity is reported to non-monotonically depend on the archaeal lipids′ concentration in the bilayer. At 50 wt% of tetraether lipids in the membrane we measure around 20% decrease of the bending modulus compared to the studied single-component phosphocholine bilayer. The membrane resistance to bending increases at archaeal lipids′ content higher than 70 wt%. These findings support the hypothesis about a probable looping conformation at very low amounts of bipolar lipids in the membrane and prevailing spanning tetraether mols. at higher concentrations Fluorescence microscopy reveals structural phase coexistence at low temperatures (6 °C) for 75 wt% of bolalipids in the bilayer. Laurdan spectroscopy measurements of large unilamellar vesicles (hundreds of nanometers in size) provide evidences for increased lipid ordering at the glycerol level induced by the presence of up to 90 wt% of bolalipid in the bilayer. The fatty acyl chain mobility probed by DPH fluorescence spectroscopy is significantly reduced in the presence of bolalipids. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Category: alcohols-buliding-blocks).
(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Category: alcohols-buliding-blocks
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts