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Fluorescence sensors for imaging membrane lipid domains and cholesterol
(Elsevier Academic Press Inc., 2021-10)
Lipid membrane domains are supramolecular lateral heterogeneities of biological membranes. Of nanoscopic dimensions, they constitute specialized hubs used by the cell as transient signaling platforms for a great variety ...
Regulation of phase boundaries and phase-segregated patterns in model membranes
(Elsevier Science, 2018-10)
Demixing of components has long been described in model membranes. It is a consequence of non-ideal lateral interactions between membrane components, and it causes the presence of segregated phases, forming patches (domains) ...
L-ascorbic acid alkyl esters action on stratum corneum model membranes: an insight into the mechanism for enhanced skin permeation
(Elsevier Science, 2019-11)
L-ascorbic acid alkyl esters (ASCn) are lipophilic forms of vitamin C, which act as skin permeation enhancers. We investigated the physical changes induced by incorporating ASCn into stratum corneum (SC) lipid membranes ...
A generalization of the membrane-plate analogy to non-homogeneous polygonal domains consisting of homogeneous subdomains
(Acoustical Society of America Institute of Physics, 2010-04)
The well-known membrane-plate analogy that relates the natural frequencies when dealing with polygonal homogeneous domains is herein extended to non-homogeneous systems comprised of homogeneous subdomains. The analogy is ...
Spin label EPR suggests the presence of cholesterol rich domains in cultured insect cell membranes
(Academic Press Inc Elsevier Science, 2018-11)
Different spin labels were incorporated to the membranes of cultured insect UFL-AG-286 cells in order to characterize their physical properties by Electron Paramagnetic Resonance spectroscopy (EPR). The spectrum of the ...
Nanoscale Sub-Compartmentalization of the Dendritic Spine Compartment
(MDPI, 2021-11)
Compartmentalization of the membrane is essential for cells to perform highly specific tasks and spatially constrained biochemical functions in topographically defined areas. These membrane lateral heterogeneities range ...
Structural basis of molecular recognition of the Leishmania Small Hydrophilic Endoplasmic Reticulum-associated Protein (SHERP) at membrane surfaces
(Elsevier, 2011)
The 57-residue small hydrophilic endoplasmic reticulum-associated protein (SHERP) shows highly specific, stageregulated expression in the non-replicative vector-transmitted stages of the kinetoplastid parasite, Leishmania ...
The shape of the transmembrane domain is a novel endocytosis signal for single-spanning membrane proteins
(Company of Biologists, 2017-11-15)
Endocytosis is crucial for all cells as it allows them to incorporate material from the extracellular space and control the availability of transmembrane proteins at the plasma membrane. In yeast, endocytosis followed by ...
Vibration of non-homogeneous rectangular membranes with arbitrary interfaces
(Academic Press Ltd - Elsevier Science Ltd, 2007-09)
The study deals with the generalized solution of the title problem. The free vibration problem of a rectangular membrane with partial domains each of uniform density and arbitrary interface is tackled. Previous studies by ...
Cholesterol and desmosterol incorporation into ram sperm membrane before cryopreservation: Effects on membrane biophysical properties and sperm quality
(Elsevier Science, 2020-09-01)
Ram sperm are particularly sensitive to freeze-thawing mainly due to their lipid composition, limiting their use in artificial insemination programs. We evaluated the extent of cholesterol and desmosterol incorporation ...