Results 91 to 100 of about 116,668 (296)

Dielectric Properties of Phosphatidylcholine Membranes and the Effect of Sugars

Membranes, 2021
Simple carbohydrates are associated with the enhanced risk of cardiovascular disease and adverse changes in lipoproteins in the organism. Conversely, sugars are known to exert a stabilizing effect on biological membranes, and this effect is widely ...
Victoria Vitkova, Vesela Yordanova, Galya Staneva, Ognyan Petkov, Angelina Stoyanova-Ivanova, Krassimira Antonova, Georgi Popkirov   +6 more
doaj   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

The interaction between amyloid-β peptides and anionic lipid membranes containing cholesterol and melatonin.

PLoS ONE, 2014
One of the hallmarks of Alzheimer's disease is the formation of senile plaques, primarily consisting of amyloid-β (Aβ) peptides. Peptide-membrane and peptide-lipid interactions are thought to be crucial in this process.
Hannah Dies, Laura Toppozini, Maikel C Rheinstädter   +2 more
doaj   +1 more source

Modulation of elasticity and interactions in charged lipid multibilayers: monovalent salt solutions

, 2016
We have studied the electrostatic screening effect of NaCl solutions on the interactions between anionic lipid bilayers in the fluid lamellar phase using a Poisson-Boltzmann based mean-field approach with constant charge and constant potential limiting ...
Belička, Michal, Gupta, Santosh, Lu, Bing-Sui, Pabst, Georg, Podgornik, Rudolf   +4 more
core   +3 more sources

?2-Microglobulin Amyloid Fibril-Induced Membrane Disruption Is Enhanced by Endosomal Lipids and Acidic pH [PDF]

, 2014
Although the molecular mechanisms underlying the pathology of amyloidoses are not well understood, the interaction between amyloid proteins and cell membranes is thought to play a role in several amyloid diseases. Amyloid fibrils of ?2-microglobulin (?2m)
A Halle, A Ivankin, AD Petelska, AM Smith, B Boland, B Reed, C Cecchi, C Luquain, CJ Sarell, CL Bergstrom, CM Franzin, D Eisenberg, D Freeman, DE Lee, DP Smith, EE Ambroggio, Eric W. Hewitt, F Ferrone, F Gejyo, G van Meer, H Ohvo-Rekila, HD Gallala, HE White, I Benilova, IJ Morten, J Brotheru, J Brotherus, J Pan, J Villanueva, J Zimmerberg, JH Lee, JN Chebukati, JR Wherrett, JW Becker, K Berthelot, K Ditaranto, Kevin W. Tipping, L Milanesi, L Pieri, L Pieri, L Rajendran, M Arrasate, M Bostrom, M Bucciantini, M Duan, M Garcia-Garcia, M Stefani, MF Sciacca, MFM Engel, MFM Sciacca, MP Fogarty, MR Eftink, MY Porter, N Cremades, N Demaurex, N Liguori, Neil A. Ranson, NM Kad, NP Reynolds, Patrick van der Wel, Paul A. Beales, Rebecca Thompson, RF Chen, S Huterer, S Valleix, S Yamamoto, Sheena E. Radford, SL Myers, Sophia C. Goodchild, T Eichner, T Hayakawa, T Kobayashi, T Kobayashi, T Kobayashi, T Kobayashi, T Ookoshi, T Sheynis, T Umeda, Tania Sheynis, TE Frederick, TE Frederick, TL Williams, TL Williams, TP Knowles, TPJ Knowles, TR Jahn, TR Jahn, V Soura, VJ McParland, VN Uversky, Wei-Feng Xue, WF Xue, WF Xue, WF Xue, WF Xue, WF Xue, WG Wood, Y Hirakura, ZS Ji   +98 more
core   +4 more sources

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

Advanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

Functional role of water in membranes updated: A tribute to Träuble [PDF]

, 2015
The classical view of a cell membrane is as a hydrophobic slab in which only nonpolar solutes can dissolve and permeate. However, water-soluble non-electrolytes such as glycerol, erythritol, urea and others can permeate lipid membranes in the liquid ...
Bouchet, Ana María, Disalvo, Edgardo Anibal, Frías, María de los Ángeles, Hollmann, Axel, Martini, María Florencia, Pinto, Oscar Alejandro   +5 more
core   +1 more source

LL‐37 Driven Phase Transition and Stacking in Oligolamellar Gram‐Negative Bacterial Membrane Models

Advanced Functional Materials, EarlyView.
This work establishes oligolamellar bacterial membrane models to investigate how LL‐37 disrupts the complex dual‐bilayer architecture of Gram‐negative bacteria. Combining SAXS, cryo‐TEM, electrophoretic mobility measurements, and coarse‐grained simulations, it reveals cardiolipin‐driven phase transitions leading to bicelle‐like structures and membrane ...
Bettina Tran, Diane C.A. Lima, Linda Sandblad, Madeleine Ramstedt, Thereza A. Soares, Stefan Salentinig   +5 more
wiley   +1 more source

A swollen phase observed between the liquid-crystalline phase and the interdigitated phase induced by pressure and/or adding ethanol in DPPC aqueous solution

, 2006
A swollen phase, in which the mean repeat distance of lipid bilayers is larger than the other phases, is found between the liquid-crystalline phase and the interdigitated gel phase in DPPC aqueous solution. Temperature, pressure and ethanol concentration
Adachi T., Braganza L. F., Chu N., Harroun T. A., Hønger T., Inoko Y., Ito Y., Kaneshina S., Kawabata Y., Komura S., Kranenburg M., Lemmich J., Mason P. C., Matuoka S., Nagao M., Nagle J. F., Ohshima H., Okabe S., Okabe S., Pabst G., Seto H., Seto H., Simon S. A., Takeda T., Takeno H., Tenchov B. G., Tristram-Nagle S., Ueno S., Winter R., Winter R., Yamada N. L., Zilman A. G.   +31 more
core   +1 more source

Supported bilayers: combined specular and diffuse x-ray scattering [PDF]

, 2009
A new method is proposed for the analysis of specular and off-specular reflectivity from supported lipid bilayers. Both thermal fluctuations and the "static" roughness induced by the substrate are carefully taken into account.
Charitat, Thierry, Daillant, Jean, Malaquin, Linda   +2 more
core   +2 more sources