Zwitterion headgroup orientation correlation, mobility, and the domain structure of membranes
Article Abstract:
Solutions of the unilamellar liposomes from dimyristoylphosphatidylcholine and from a mixture of dimyristoyl- and dipalmitoylphosphatidylcholine (mole fraction x=0.5) are investigated. Based on a theoretical model that considers the internal electric fields of the dielectrically heterogeneous liquids, the vesicle radius, the zwitterion relaxation time, a relaxation time distribution parameter, and a quantity that is directly related to the dipole orientation correlation factor are calculated from the measured spectra.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Structure of electrorheological fluids under an electric field and a shear flow: Experiment and computer simulation
Article Abstract:
The structure of electrorheological (ER) fluids, subjected to both an electric field and a shear flow, is investigated by using a computer simulation and an experimental approach. The results show that it is possible to achieve different patterns or microstructure and desired macroscopic properties of colloidal suspensions like ER fluids, magnetorheological suspensions, ferrofluids and electromagnetorheological fluids by applying external fields and simultaneously a shear flow.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Planar membranes interaction
Article Abstract:
A study analyzed the system of two parallel planar, arbitrarily charged surface immersed in a solution containing only one ionic species, the counterions under a mean field Poisson-Boltzmann approach. Results reveal that the system of two planar parallel dissociating membranes acts as a buffer for pressure values and for counterionic concentration values in regions interior to and far from the membranes.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Polarization rotation in a second harmonic reflection experiment from an isotropic surface of chiral troger base
- Abstracts: Characterization of the solvation and transport of the hydrated proton in the perfluorosulfonic acid membrane Nafion
- Abstracts: Optical constant determination in the infrared of uniaxially oriented monolayers from transmittance and reflectance measurements
- Abstracts: Exciton delocalization and initial dephasing dynamics of purple bacterial LH2. Absorbance detected magnetic resonance spectra of the FMO complex of prosthecochloris aestuarii reconsidered: exciton simulations
- Abstracts: Energy migration and transfer rates are invariant to modeling the fluorescence relaxation by discrete and continuous distributions of lifetimes