BACKGROUND Lecithin has been widely sold as a dietary supplement. 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) is a phospholipid that does not exist in nature and has been used in vitro to study lipid binding. We tested DMPC in vivo in apolipoprotein (apo) E-null mice. METHODS AND RESULTS DMPC or soy or egg lecithin at 1.0 mg/mL was added to the drinking water of 4-week-old apoE-null fe...

Continued focus on reducing carbon emissions and improving energy efficiency requires buildings to become grid-interactive not just behave as static consumers. A distributed model predictive control (DMPC) algorithm known Limited-Communication (LC) DMPC is modified enable buildings. grid-aggregator subsystem added that allows for a bulk grid power reference signal be followed while the individu...

We have studied the lipid binding of apoC-III with two types of mixed vesicles of DMPC (dimyristoyl phosphatidylcholine) and DPPC (dipalmitoyl phosphatidyl-choline). DMPC vesicles mixed with those of DPPC produce a macroscopic mixture in which the DMPC and DPPC vesicles remain intact. The circular dichroism and fluorescence spectra of apoC-III in the presence of this macroscopic mixture exhibit...

Gramicidin A was incorporated at a peptide/lipid ratio of 1:10 mol/mol in aligned bilayers of dimyristoyl phosphatidylcholine (DMPC), phosphatidylserine (DMPS), phosphatidylglycerol (DMPG), and phosphatidylethanolamine (DMPE), from trifluoroethanol. Orientations of the peptide and lipid chains were determined by polarized attenuated total reflection infrared spectroscopy. Lipid-peptide interact...

an inoculation of virulent leishmania major is known as leishmanization (lz) which is proven to be the most effective control measure against cutaneous leishmaniasis (cl). however, using lz is restricted due to various side effects such as uncontrolled lesion development. in the present research, the efficacy of cationic nanoliposomes containing cpg oligodeoxynucleotides (cpg odn) as an improve...

The regeneration kinetics of the integral membrane protein bacteriorhodopsin have been investigated in a lipid-based refolding system. Previous studies on bacteriorhodopsin regeneration have involved detergent-based systems, and in particular mixed dimyristoylphosphatidylcholine (DMPC)/CHAPS micelles. Here, we show that the short chain lipid dihexanoylphosphatidylcholine (DHPC) can be substitut...

Low-angle and wide-angle X-ray diffraction was used to examine the phase behavior, as a function of temperature, of fully hydrated multilamellar vesicles of dimyristoylphosphatidylcholine (DMPC) labeled with a difluoromethylene group in the sn-2 acyl chain at position 4,8, or 12. At temperatures near 5 OC, DMPC and 2-[ 12,12-FzIDMPC are both in the Lb (gel) phase with a D-spacing of 59.5 i 0.5 ...

Cardiolipins (CLs) are important biologically for their unique role in biomembranes that couple phosphorylation and electron transport like bacterial plasma membranes, chromatophores, chloroplasts and mitochondria. CLs are often tightly coupled to proteins involved in oxidative phosphorylation. The first step in understanding the interaction of CL with proteins is to obtain the pure CL structur...

The lipid transfer and mixing properties in hydrated dispersions of dimyristoyl phosphatidylcholine (DMPC)/dimyristoyl glycerol (DMG) binary mixtures have been investigated by using electron spin resonance spectroscopy of the spin-labelled lipid components. The assay system is based on the reduction in spectral broadening from spin-spin interactions that takes place by dilution of the spin-labe...

The major goal of this research was to examine how coumarin affects lipid model membranes. For reason, liposome membranes were formed using dimyristoyl phosphatidylcholine (DMPC) as zwitterionic lipid. influence on the morphology, packing order, fluidity, and hydration state specifically investigated by means microscopic (field emission scanning electron microscopy (FE-SEM)) spectroscopic (atte...