Etching kinetics of swift heavy ion irradiated silicone rubber with insoluble additives or reaction products

2003 ◽  
Vol 209 ◽  
pp. 310-315
Author(s):  
D. Fink ◽  
M. Müller ◽  
A. Petrov ◽  
L. Farenzena ◽  
M. Behar ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
Heavy Ion ◽  
Reaction Products ◽  
Swift Heavy Ion ◽  
Kinetics Of

Kinetics of multicharged recoil ions produced in swift heavy ion atom collisions

1989 ◽  
Vol 110 (1-2) ◽  
pp. 145-147 ◽  
Author(s):  
J. P. Grandin ◽  
D. Hennecart ◽  
X. Husson ◽  
D. Lecler ◽  
I. Lesteven-Vaïsse
Keyword(s):  
Heavy Ion ◽  
Swift Heavy Ion ◽  
Kinetics Of ◽  
Recoil Ions

Micro-Raman and electronic structure study on kinetics of electronic excitations induced monoclinic-to-tetragonal phase transition in zirconium oxide films

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104425-104432 ◽  
Author(s):  
Mukesh Rawat ◽  
Arkaprava Das ◽  
D. K. Shukla ◽  
Parasmani Rajput ◽  
A. Chettah ◽  
...  
Keyword(s):  
Tetragonal Phase ◽  
Zirconium Oxide ◽  
Heavy Ion ◽  
Structure Study ◽  
Silicon Substrates ◽  
Electronic Excitations ◽  
Swift Heavy Ion ◽  
Shi Irradiation ◽  
Kinetics Of ◽  
Tetragonal Phase Transition

Monoclinic-to-tetragonal phase transformation (PT) in sputtering grown zirconium oxide (ZrO2) films on silicon substrates by electronic excitation (EE) induced by swift heavy ion (SHI) irradiation is reported.

scholarly journals Kinetics of Electrons from Plasma Discharge in a Latent Track Region Induced by Swift Heavy ION Irradiation

2015 ◽  
Vol 23 (s1) ◽  
pp. 45-52
Author(s):  
Stanislav Minárik
Keyword(s):  
Phonon Scattering ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
Space Distribution ◽  
Material Structure ◽  
Latent Track ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Kinetics Of ◽  
Detailed Derivation

Abstract While passing swift heavy ion through a material structure, it produces a region of radiation affected material which is known as a "latent track". Scattering motions of electrons interacting with a swift heavy ion are dominant in the latent track region. These phenomena include the electron impurity and phonon scattering processes modified by the interaction with the ion projectile as well as the Coulomb scattering between two electrons. In this paper, we provide detailed derivation of a 3D Boltzmann scattering equation for the description of the relative scattering motion of such electrons. Phase-space distribution function for this non-equilibrioum system of scattering electrons can be found by the solution of mentioned equation.

Video-microscopic measurement of cell-substratum traction forces generated by locomoting keratocytes

1993 ◽  
Vol 51 ◽  
pp. 188-189
Author(s):  
Tim Oliver ◽  
Michelle Leonard ◽  
Juliet Lee ◽  
Akira Ishihara ◽  
Ken Jacobson
Keyword(s):  
Silicone Rubber ◽  
Molecular Motors ◽  
Video Frame ◽  
Traction Forces ◽  
Cell Traction Forces ◽  
Latex Beads ◽  
Cell Traction ◽  
Local Cell ◽  
Microscopic Measurement ◽  
Kinetics Of

We are using video-enhanced light microscopy to investigate the pattern and magnitude of forces that fish keratocytes exert on flexible silicone rubber substrata. Our goal is a clearer understanding of the way molecular motors acting through the cytoskeleton co-ordinate their efforts into locomotion at cell velocities up to 1 μm/sec. Cell traction forces were previously observed as wrinkles(Fig.l) in strong silicone rubber films by Harris.(l) These forces are now measureable by two independant means.In the first of these assays, weakly crosslinked films are made, into which latex beads have been embedded.(Fig.2) These films report local cell-mediated traction forces as bead displacements in the plane of the film(Fig.3), which recover when the applied force is released. Calibrated flexible glass microneedles are then used to reproduce the translation of individual beads. We estimate the force required to distort these films to be 0.5 mdyne/μm of bead movement. Video-frame analysis of bead trajectories is providing data on the relative localisation, dissipation and kinetics of traction forces.

The Kinetics of Inhibition of the Action of Thrombin by the Fibrinopeptides Formed during the Clotting of Fibrinogen

1966 ◽  
Vol 16 (01/02) ◽  
pp. 277-295 ◽  
Author(s):  
A Silver ◽  
M Murray
Keyword(s):  
Amino Acids ◽  
Competitive Inhibition ◽  
Amorphous Material ◽  
Peptide Bond ◽  
Initial Reaction ◽  
Reaction Products ◽  
Coagulation Mechanism ◽  
Kinetics Of ◽  
Kinetics Of Inhibition ◽  
Burk Plot

SummaryVarious investigators have separated the coagulation products formed when fibrinogen is clotted with thrombin and identified fibrinopeptides A and B. Two other peaks are observed in the chromatogram of the products of coagulation, but these have mostly been dismissed by other workers. They have been identified by us as amino acids, smaller peptides and amorphous material (37). We have re-chromatographed these peaks and identified several amino acids. In a closed system of fibrinogen and thrombin, the only reaction products should be fibrin and peptide A and peptide B. This reasoning has come about because thrombin has been reported to be specific for the glycyl-arginyl peptide bond. It is suggested that thrombin also breaks other peptide linkages and the Peptide A and Peptide B are attacked by thrombin to yield proteolytic products. Thrombin is therefore probably not specific for the glycyl-arginyl bond but will react on other linkages as well.If the aforementioned is correct then the fibrinopeptides A and B would cause an inhibition with the coagulation mechanism itself. We have shown that an inhibition does occur. We suggest that there is an autoinhibition to the clotting mechanism that might be a control mechanism in the human body.The experiment was designed for coagulation to occur under controlled conditions of temperature and time. Purified reactants were used. We assembled an apparatus to record visually the speed of the initial reaction, the rate of the reaction, and the density of the final clot formed after a specific time.The figures we derived made available to us data whereby we could calculate and plot the information to show the mechanism and suggest that such an inhibition does exist and also further suggest that it might be competitive.In order to prove true competitive inhibition it is necessary to fulfill the criteria of the Lineweaver-Burk plot. This has been done. We have also satisfied other criteria of Dixon (29) and Bergman (31) that suggest true competitive inhibition.

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