Protein Layer Formation on Artificial Membranes

2015 ◽  
pp. 80-89 ◽  
Author(s):  
E. Ritz ◽  
K. Andrassy ◽  
J. Bommer ◽  
E. Rauterberg
Keyword(s):  
Layer Formation ◽  
Artificial Membranes ◽  
Protein Layer

Advances on Biomedical Titanium Surface Interactions

2014 ◽  
Vol 19 ◽  
pp. 43-64 ◽  
Author(s):  
Maria Bousnaki ◽  
Petros Koidis
Keyword(s):  
Surface Properties ◽  
Adsorption Mechanism ◽  
Titanium Surface ◽  
Experimental Studies ◽  
Cell Activity ◽  
Layer Formation ◽  
Protein Layer ◽  
Tissue Integration ◽  
The Moment ◽  
Initial Adsorption

When used as an implanted material, titanium (Ti) surface controls the subsequent biological reactions and leads to tissue integration. Cells interactions with the surface, through a protein layer that is being formed from the moment Ti surface comes in contact with blood and its components, and indeed this protein layer formation, are regulated by surface properties such as topography, chemistry, charge and surface energy. Currently, the implementation of nanotechnology, in an attempt to support mimicking the natural features of extracellular matrix, has provided novel approaches for understanding and translating surface mechanisms whose modification and tailoring are expected to lead to enhanced cell activity and improved integration. Despite the fact that there has been extensive research on this subject, the sequence of interactions that take place instantly after the exposure of the implanted material into the biologic microenvironment are not well documented and need further investigation as well as the optimization of characteristics of Ti surface. This review, including theoretical and experimental studies, summarizes some of the latest advances on the Ti surface concerning modifications on surface properties and how these modifications affect biomolecular reactions and also attempts to present the initial adsorption mechanism of water and protein molecules to the surface.

Combined Passive and Active Microrheology Study of Protein-Layer Formation at an Air−Water Interface

Langmuir ◽  
2010 ◽  
Vol 26 (4) ◽  
pp. 2650-2658 ◽  
Author(s):  
Myung Han Lee ◽  
Daniel H. Reich ◽  
Kathleen J. Stebe ◽  
Robert L. Leheny
Keyword(s):  
Water Interface ◽  
Layer Formation ◽  
Protein Layer ◽  
Air Water Interface

Brownian dynamics of colloidal probes during protein-layer formation at an oil–water interface

Soft Matter ◽  
2011 ◽  
Vol 7 (17) ◽  
pp. 7635 ◽  
Author(s):  
Myung Han Lee ◽  
Steven P. Cardinali ◽  
Daniel H. Reich ◽  
Kathleen J. Stebe ◽  
Robert L. Leheny
Keyword(s):  
Brownian Dynamics ◽  
Water Interface ◽  
Layer Formation ◽  
Protein Layer ◽  
Oil Water ◽  
Colloidal Probes

Video real-time imaging of artificial membranes during freeze-drying by cryo-electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 16-17
Author(s):  
Alan S. Rudolph ◽  
Ronald R. Price
Keyword(s):  
Real Time ◽  
Self Assembly ◽  
Freeze Drying ◽  
Video Capture ◽  
Drying Process ◽  
Artificial Membranes ◽  
The Past ◽  
Cryo Electron Microscopy ◽  
Spherical Structures ◽  
Capture Techniques

We have employed cryoelectron microscopy to visualize events that occur during the freeze-drying of artificial membranes by employing real time video capture techniques. Artificial membranes or liposomes which are spherical structures within internal aqueous space are stabilized by water which provides the driving force for spontaneous self-assembly of these structures. Previous assays of damage to these structures which are induced by freeze drying reveal that the two principal deleterious events that occur are 1) fusion of liposomes and 2) leakage of contents trapped within the liposome [1]. In the past the only way to access these events was to examine the liposomes following the dehydration event. This technique allows the event to be monitored in real time as the liposomes destabilize and as water is sublimed at cryo temperatures in the vacuum of the microscope. The method by which liposomes are compromised by freeze-drying are largely unknown. This technique has shown that cryo-protectants such as glycerol and carbohydrates are able to maintain liposomal structure throughout the drying process.

Kinetics of compact layer formation and growth of 1,10-phenanthroline at the electrode surface

1990 ◽  
Vol 87 ◽  
pp. 1597-1607 ◽  
Author(s):  
L Benedetti ◽  
M Borsari ◽  
C Fontanesi ◽  
G Battistuzzi Gavioli
Keyword(s):  
Electrode Surface ◽  
Layer Formation ◽  
Compact Layer ◽  
Kinetics Of

Polipirolo sluoksnio formavimo ypatumų ir urino rūgšties molekulinių įspaudų susidarymo tyrimai

2020 ◽  
Author(s):  
◽  
Linas Sinkevičius
Keyword(s):  
Uric Acid ◽  
Layer Formation

Investigation of polypyrrole layer formation peculiarities and formation of uric acid molecular imprints

TECHNOLOGICAL CONTROL OF THE CONTACT PRESSURE ON THE CYLINDRICAL SUBSTRATE FROM THE SIDE OF THE COATING ADDITIVELY FORMED ON ITS EXTERNAL SURFACE

2020 ◽  
Author(s):  
Dmitriy Parshin
Keyword(s):  
Stress State ◽  
Contact Pressure ◽  
Mechanical Model ◽  
External Surface ◽  
Layer By Layer ◽  
Layer Formation ◽  
Technological Control ◽  
Manufactured Products ◽  
Arbitrary Thickness

The article gives an example of controlling the stress state parameters of additively manufactured products. The study was carried out on the basis of a developed non-classical mechanical model of the process of layer-by-layer formation of a coating of arbitrary thickness on a cylindrical substrate. The model is based on modern concepts of the mechanics of continuously growing bodies and allows one to obtain fairly simple analytical dependencies. On the basis of the latter, the problem of technological control of the evolution of contact pressure at the substrate – coating interface is solved in the article. A number of practically significant conclusions have been made.

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