Indentation response in porcine brain under electric fields

Soft Matter ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 623-632 ◽  
Author(s):  
Long Qian ◽  
Yifan Sun ◽  
Qian Tong ◽  
Jiyu Tian ◽  
Zhuang Ren ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Brain Tissue ◽  
Electric Fields ◽  
Porcine Brain ◽  
First Time ◽  
Indentation Response

Characterization of the mechanical behavior of brain tissue under varying electric fieldsviaindentation for the first time.

scholarly journals Characterization of Simple and Double Yeast Cells Using Dielectrophoretic Force Measurement

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3813 ◽  
Author(s):  
Fernando-Juan García-Diego ◽  
Mario Rubio-Chavarría ◽  
Pedro Beltrán ◽  
Francisco J. Espinós
Keyword(s):  
Electric Fields ◽  
Force Measurement ◽  
Point Of View ◽  
Yeast Cells ◽  
Instrumental Method ◽  
Particle Characterization ◽  
Dielectrophoretic Force ◽  
Cell Velocity ◽  
First Time

Dielectrophoretic force is an electric force experienced by particles subjected to non-uniform electric fields. In recent years, plenty of dielectrophoretic force (DEP) applications have been developed. Most of these works have been centered on particle positioning and manipulation. DEP particle characterization has been left in the background. Likewise, these characterizations have studied the electric properties of particles from a qualitative point of view. This article focuses on the quantitative measurement of cells’ dielectric force, specifically yeast cells. The measures are obtained as the results of a theoretical model and an instrumental method, both of which are developed and described in the present article, based on a dielectrophoretic chamber made of two V-shaped placed electrodes. In this study, 845 cells were measured. For each one, six speeds were taken at different points in its trajectory. Furthermore, the chamber design is repeatable, and this was the first time that measurements of dielectrophoretic force and cell velocity for double yeast cells were accomplished. To validate the results obtained in the present research, the results have been compared with the dielectric properties of yeast cells collected in the pre-existing literature.

635 Mechanical Characterization of Porcine Brain Tissue in High-rate Compression

2007 ◽  
Vol 2006.19 (0) ◽  
pp. 452-453
Author(s):  
Atsutaka TAMURA ◽  
Sadayuki HAYASHI ◽  
Isao WATANABE ◽  
Kazuaki NAGAYAMA ◽  
Takeo MATSUMOTO
Keyword(s):  
Brain Tissue ◽  
Mechanical Characterization ◽  
High Rate ◽  
Porcine Brain ◽  
Porcine Brain Tissue

Raman Spectroscopic Characterization of Porcine Brain Tissue Using a Single Fiber-Optic Probe

2007 ◽  
Vol 79 (2) ◽  
pp. 557-564 ◽  
Author(s):  
S. Koljenović ◽  
T. C. Bakker Schut ◽  
R. Wolthuis ◽  
A. J. P. E. Vincent ◽  
G. Hendriks-Hagevi ◽  
...  
Keyword(s):  
Brain Tissue ◽  
Fiber Optic ◽  
Spectroscopic Characterization ◽  
Single Fiber ◽  
Fiber Optic Probe ◽  
Raman Spectroscopic ◽  
Porcine Brain ◽  
Optic Probe ◽  
Porcine Brain Tissue

scholarly journals A Langmuir Probe – fluxgate magnetometer combination for Comet Interceptor

2021 ◽  
Author(s):  
Johan De Keyser ◽  
Sylvain Ranvier ◽  
Jeroen Maes ◽  
Jordan Pawlak ◽  
Eddy Neefs ◽  
...  
Keyword(s):  
Electric Fields ◽  
Langmuir Probe ◽  
Fluxgate Magnetometer ◽  
Magnetic Field Direction ◽  
Strong Activity ◽  
Plasma Environment ◽  
Spacecraft Potential ◽  
First Time

<p>ESA’s Comet Interceptor mission is a low budget, fast track mission to a dynamically new comet (DNC). As a DNC enters the inner solar system for the first time, it is expected to feature strong activity and to display a fluid-scale plasma environment, rather than the kinetic-scale environment encountered at weakly active objects such as 67P.  In situ characterization of this plasma environment is therefore one of the main mission objectives and is the object of the Dust-Fields-Plasma instrument, a suite of sensors for the measurement of the dust, the plasma populations, and the magnetic and electric fields and waves, with the field sensors being mounted on booms, all within strict mass, power, and budget constraints. In this context a sensor has been developed that harbors a fluxgate magnetometer at the center of a hollow spherical Langmuir probe. Precautions have been taken to minimize the possible interference between both, while at the same time being very lightweight. An engineering model has been built, tested and characterized in detail. Together with a companion Langmuir probe and an additional magnetometer in gradiometer configuration, the probe-magnetometer combination (COMPLIMENT + FGM) provides data regarding magnetic and electric fields and waves, total ion and electron densities and electron temperature, as well as the ambient nanodust population. It also offers reference data for the other sensors, such as magnetic field direction, spacecraft potential and total plasma density at high cadence, and integrated EUV flux.</p>

scholarly journals Viscoelastic characterization of porcine brain tissue mechanical properties under indentation loading

2021 ◽  
pp. 100041
Author(s):  
Sowmya N. Sundaresh ◽  
John D. Finan ◽  
Benjamin S. Elkin ◽  
Changhee Lee ◽  
Jingwei Xiao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Brain Tissue ◽  
Porcine Brain ◽  
Porcine Brain Tissue

TBE in Sweden

2020 ◽  
Keyword(s):  
Genetic Characterization ◽  
Immunoglobulin M ◽  
Enzyme Linked Immunosorbent Assay ◽  
Second Phase ◽  
Serum Samples ◽  
Tick Borne Encephalitis ◽  
Specific Immunoglobulin ◽  
Tick Borne Encephalitis Virus ◽  
First Time

Tick-borne encephalitis virus (TBEV) was isolated for the first time in Sweden in 1958 (from ticks and from 1 tick-borne encephalitis [TBE] patient).1 In 2003, Haglund and colleagues reported the isolation and antigenic and genetic characterization of 14 TBEV strains from Swedish patients (samples collected 1991–1994).2 The first serum sample, from which TBEV was isolated, was obtained 2–10 days after onset of disease and found to be negative for anti-TBEV immunoglobulin M (IgM) by enzyme-linked immunosorbent assay (ELISA), whereas TBEV-specific IgM (and TBEV-specific immunoglobulin G/cerebrospinal fluid [IgG/CSF] activity) was demonstrated in later serum samples taken during the second phase of the disease.

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