Photostimulated vectorial electron transfer across the bilayer membrane of lipid vesicles in a system with CdS nanoparticles as photosensitizer and 1,4--bis(1,2,6-triphenyl-4-pyridyl)benzene as a reversible two-electron carrier

1995 ◽  
Vol 90 (2-3) ◽  
pp. 159-166
Author(s):  
T.I. Igumenova ◽  
V.N. Parmon
Keyword(s):  
Electron Transfer ◽  
Lipid Vesicles ◽  
Bilayer Membrane ◽  
Cds Nanoparticles ◽  
Electron Carrier

Bilayer Membrane Bending Stiffness by Tether Formation From Mixed PC-PS Lipid Vesicles

1990 ◽  
Vol 112 (3) ◽  
pp. 235-240 ◽  
Author(s):  
J. Song ◽  
R. E. Waugh
Keyword(s):  
Present Report ◽  
Membrane Surface ◽  
Lipid Vesicles ◽  
Phosphatidyl Serine ◽  
Bilayer Membrane ◽  
Bending Stiffness ◽  
New Approach ◽  
Lipid Mixtures ◽  
Membrane Bending ◽  
Membrane Surface Charge

Recently, a new approach to measure the bending stiffness (curvature elastic modulus) of lipid bilayer membrane was developed (Biophys. J., Vol. 55; pp. 509–517, 1989). The method involves the formation of cylindrical membrane strands (tethers) from bilayer vesicles. The bending stiffness (B) can be calculated from measurements of the tether radius (Rt) as a function of the axial force (f) on the tether: B =f·Rt/2π. In the present report, we apply this method to determine the bending stiffness of bilayer membranes composed of mixtures of SOPC (1-stearoyl-2-oleoyl phosphatidyl choline) and POPS (1-palmitoyl-2-oleoyl phosphatidyl serine). Three different mixtures were tested: pure SOPC, SOPC plus 2 percent (mol/mol) POPS, and SOPC plus 16 percent POPS. The bending stiffness determined for these three different lipid mixtures were not significantly different (1.6–1.8×10-12 ergs). Because POPS carries a net negative charge, these results indicate that changes in the density of the membrane surface charge have no effect on the intrinsic rigidity of the membrane. The values we obtain are consistent with published values for the bending stiffness of other membranes determined by different methods. Measurements of the aspiration pressure, the tether radius and the tether force were used to verify a theoretical relationship among these quantities at equilibrium. The ratio of the theoretical force to the measured force was 1.12 ± 0.17.

Photocatalytic electron transfer through the photopassive membrane of lipid vesicles

1983 ◽  
Vol 23 (3-4) ◽  
pp. 409-412 ◽  
Author(s):  
V. N. Parmon ◽  
M. I. Kharmov ◽  
I. M. Tsvetkov ◽  
S. V. Lymar ◽  
K. I. Zamaraev
Keyword(s):  
Electron Transfer ◽  
Lipid Vesicles

The dipole moment of the electron carrier adrenodoxin is not critical for redox partner interaction and electron transfer

2009 ◽  
Vol 103 (7) ◽  
pp. 997-1004 ◽  
Author(s):  
Frank Hannemann ◽  
Arnaud Guyot ◽  
Andy Zöllner ◽  
Jürgen J. Müller ◽  
Udo Heinemann ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Dipole Moment ◽  
Electron Carrier ◽  
Redox Partner ◽  
Partner Interaction

Investigating electron-transfer processes using a biomimetic hybrid bilayer membrane system

2013 ◽  
Vol 8 (3) ◽  
pp. 439-450 ◽  
Author(s):  
Wei Ma ◽  
Yi-Lun Ying ◽  
Li-Xia Qin ◽  
Zhen Gu ◽  
Hao Zhou ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Membrane System ◽  
Bilayer Membrane ◽  
Transfer Processes ◽  
Electron Transfer Processes

scholarly journals Visualizing the bidirectional electron transfer in a Schottky junction consisting of single CdS nanoparticles and a planar gold film

2017 ◽  
Vol 8 (7) ◽  
pp. 5019-5023 ◽  
Author(s):  
Zhimin Li ◽  
Yimin Fang ◽  
Yongjie Wang ◽  
Yingyan Jiang ◽  
Tao Liu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Gold Film ◽  
Cds Nanoparticles ◽  
Schottky Junction ◽  
Hot Electron ◽  
Plasmon Polaritons

The surface plasmon polaritons induced the injection of a hot electron into the CdS nanoparticles at a Schottky junction.

scholarly journals Synthetic Cell as a Platform for Understanding Membrane-Membrane Interactions

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 912
Author(s):  
Bineet Sharma ◽  
Hossein Moghimianavval ◽  
Sung-Won Hwang ◽  
Allen P. Liu
Keyword(s):  
Membrane Fusion ◽  
Intercellular Communication ◽  
Lipid Vesicles ◽  
Bilayer Membrane ◽  
Future Research ◽  
Membrane Interactions ◽  
Protein Insertion ◽  
Synthetic Cell ◽  
Challenges And Opportunities ◽  
Synthetic Cells

In the pursuit of understanding life, model membranes made of phospholipids were envisaged decades ago as a platform for the bottom-up study of biological processes. Micron-sized lipid vesicles have gained great acceptance as their bilayer membrane resembles the natural cell membrane. Important biological events involving membranes, such as membrane protein insertion, membrane fusion, and intercellular communication, will be highlighted in this review with recent research updates. We will first review different lipid bilayer platforms used for incorporation of integral membrane proteins and challenges associated with their functional reconstitution. We next discuss different methods for reconstitution of membrane fusion and compare their fusion efficiency. Lastly, we will highlight the importance and challenges of intercellular communication between synthetic cells and synthetic cells-to-natural cells. We will summarize the review by highlighting the challenges and opportunities associated with studying membrane–membrane interactions and possible future research directions.

Reduction of Methemoglobin via Electron Transfer across the Bilayer Membrane of Hb Vesicles

1997 ◽  
Vol 70 (5) ◽  
pp. 1171-1178 ◽  
Author(s):  
Shinji Takeoka ◽  
Takeru Ohgushi ◽  
Hiroyuki Nishide ◽  
Eishun Tsuchida
Keyword(s):  
Electron Transfer ◽  
Bilayer Membrane
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