Generic Role of Polymer Supports in the Fine Adjustment of Interfacial Interactions between Solid Substrates and Model Cell Membranes

Langmuir ◽  
2015 ◽  
Vol 31 (15) ◽  
pp. 4473-4480 ◽  
Author(s):  
Fernanda F. Rossetti ◽  
Emanuel Schneck ◽  
Giovanna Fragneto ◽  
Oleg V. Konovalov ◽  
Motomu Tanaka
Keyword(s):  
Cell Membranes ◽  
Interfacial Interactions ◽  
Polymer Supports ◽  
Solid Substrates ◽  
Model Cell ◽  
Fine Adjustment

Role of bovine serum albumin and humic acid in the interaction between SiO2 nanoparticles and model cell membranes

2016 ◽  
Vol 219 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoran Wei ◽  
Xiaolei Qu ◽  
Lei Ding ◽  
Jingtian Hu ◽  
Wei Jiang
Keyword(s):  
Humic Acid ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Cell Membranes ◽  
Sio2 Nanoparticles ◽  
Model Cell

Cholesterol interactions with tetracosenoic acid phospholipids in model cell membranes: role of the double-bond position

Biochemistry ◽  
1990 ◽  
Vol 29 (14) ◽  
pp. 3466-3471 ◽  
Author(s):  
Eser Ayanoglu ◽  
Bich Huong Chiche ◽  
Mark Beatty ◽  
Carl Djerassi ◽  
Nejat Duzgunes
Keyword(s):  
Double Bond ◽  
Cell Membranes ◽  
Double Bond Position ◽  
Model Cell

The role of positively charged sites in the interaction between model cell membranes and γ-Fe2O3 NPs

2019 ◽  
Vol 673 ◽  
pp. 414-423 ◽  
Author(s):  
Hanqiong Zhang ◽  
Xiaoran Wei ◽  
Ling Liu ◽  
Qingzhu Zhang ◽  
Wei Jiang
Keyword(s):  
Cell Membranes ◽  
Model Cell ◽  
Positively Charged

scholarly journals Role of Nanoparticle Surface Functionality in the Disruption of Model Cell Membranes

Langmuir ◽  
2012 ◽  
Vol 28 (47) ◽  
pp. 16318-16326 ◽  
Author(s):  
Babak Y. Moghadam ◽  
Wen-Che Hou ◽  
Charlie Corredor ◽  
Paul Westerhoff ◽  
Jonathan D. Posner
Keyword(s):  
Cell Membranes ◽  
Surface Functionality ◽  
Nanoparticle Surface ◽  
Model Cell

Aggregation and interactions of chemical mechanical planarization nanoparticles with model biological membranes: role of phosphate adsorption

2016 ◽  
Vol 3 (1) ◽  
pp. 146-156 ◽  
Author(s):  
Xitong Liu ◽  
Kai Loon Chen
Keyword(s):  
Cell Membranes ◽  
Chemical Mechanical Planarization ◽  
Biological Membranes ◽  
Phosphate Adsorption ◽  
P Adsorption ◽  
Model Cell

Adsorption of phosphate on chemical mechanical planarization nanoparticles can significantly impact the interactions between the nanoparticles and model cell membranes.

scholarly journals Role of charge and hydration in effects of polysialic acid on molecular interactions on and between cell membranes.

1994 ◽  
Vol 269 (37) ◽  
pp. 23039-23044 ◽  
Author(s):  
P. Yang ◽  
D. Major ◽  
U. Rutishauser
Keyword(s):  
Molecular Interactions ◽  
Cell Membranes ◽  
Polysialic Acid

Water transport across mammalian cell membranes

1996 ◽  
Vol 270 (1) ◽  
pp. C12-C30 ◽  
Author(s):  
A. S. Verkman ◽  
A. N. van Hoek ◽  
T. Ma ◽  
A. Frigeri ◽  
W. R. Skach ◽  
...  
Keyword(s):  
Water Transport ◽  
Cell Membranes ◽  
Water Channel ◽  
Water Channels ◽  
Channel Structure ◽  
Level Information ◽  
Selective Channel ◽  
Transcriptional Units ◽  
Measurement Strategies

This review summarizes recent progress in water-transporting mechanisms across cell membranes. Modern biophysical concepts of water transport and new measurement strategies are evaluated. A family of water-transporting proteins (water channels, aquaporins) has been identified, consisting of small hydrophobic proteins expressed widely in epithelial and nonepithelial tissues. The functional properties, genetics, and cellular distributions of these proteins are summarized. The majority of molecular-level information about water-transporting mechanisms comes from studies on CHIP28, a 28-kDa glycoprotein that forms tetramers in membranes; each monomer contains six putative helical domains surrounding a central aqueous pathway and functions independently as a water-selective channel. Only mutations in the vasopressin-sensitive water channel have been shown to cause human disease (non-X-linked congenital nephrogenic diabetes insipidus); the physiological significance of other water channels remains unproven. One mercurial-insensitive water channel has been identified, which has the unique feature of multiple overlapping transcriptional units. Systems for expression of water channel proteins are described, including Xenopus oocytes, mammalian and insect cells, and bacteria. Further work should be directed at elucidation of the role of water channels in normal physiology and disease, molecular analysis of regulatory mechanisms, and water channel structure determination at atomic resolution.

Elucidation of molecular interactions between lipid membranes and ionic liquids using model cell membranes

Soft Matter ◽  
2012 ◽  
Vol 8 (20) ◽  
pp. 5501 ◽  
Author(s):  
Seunghwan Jeong ◽  
Sung Ho Ha ◽  
Sang-Hyun Han ◽  
Min-Cheol Lim ◽  
Sun Min Kim ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Molecular Interactions ◽  
Lipid Membranes ◽  
Cell Membranes ◽  
Model Cell

Bouncing on thin air: how squeeze forces in the air film during non-wetting droplet bouncing lead to momentum transfer and dissipation

2015 ◽  
Vol 776 ◽  
pp. 531-567 ◽  
Author(s):  
Jolet de Ruiter ◽  
Rudy Lagraauw ◽  
Frieder Mugele ◽  
Dirk van den Ende
Keyword(s):  
Oscillation Mode ◽  
Interference Microscopy ◽  
Droplet Motion ◽  
Solid Substrates ◽  
Long Time ◽  
Lift Off ◽  
Continuous Presence ◽  
Air Film ◽  
Single Oscillation

Millimetre-sized droplets are able to bounce multiple times on flat solid substrates irrespective of their wettability, provided that a micrometre-thick air layer is sustained below the droplet, limiting $\mathit{We}$ to ${\lesssim}4$. We study the energy conversion during a bounce series by analysing the droplet motion and its shape (decomposed into eigenmodes). Internal modes are excited during the bounce, yet the viscous dissipation associated with the in-flight oscillations accounts for less than 20 % of the total energy loss. This suggests a significant contribution from the bouncing process itself, despite the continuous presence of a lubricating air film below the droplet. To study the role of this air film we visualize it using reflection interference microscopy. We quantify its thickness (typically a few micrometres) with sub-millisecond time resolution and ${\sim}30~\text{nm}$ height resolution. Our measurements reveal strong asymmetry in the air film shape between the spreading and receding phases of the bouncing process. This asymmetry is crucial for effective momentum reversal of the droplet: lubrication theory shows that the dissipative force is repulsive throughout each bounce, even near lift-off, which leads to a high restitution coefficient. After multiple bounces the droplet eventually hovers on the air film, while continuously experiencing a lift force to sustain its weight. Only after a long time does the droplet finally wet the substrate. The observed bounce mechanism can be described with a single oscillation mode model that successfully captures the asymmetry of the air film evolution.

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