scholarly journals Design of a faraday cage for biomedical measurements based on site electromagnetic field mapping

2021 ◽  
Author(s):  
Alfredo Cruz Valenzuela ◽  
Jaime Fabián Vázquez de la Rosa ◽  
Rodrigo Martín Salas ◽  
Sergio Solís Nájera ◽  
Lucia Medina
Keyword(s):  
Electromagnetic Field ◽  
Faraday Cage ◽  
Field Mapping ◽  
Biomedical Measurements

Near-field mapping of the electromagnetic field in confined photon geometries

2002 ◽  
Vol 66 (11) ◽  
Author(s):  
V. Zhuk ◽  
D.V. Regelman ◽  
D. Gershoni ◽  
M. Bayer ◽  
J.P. Reithmaier ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Near Field ◽  
Field Mapping

Recent Progress in Electromagnetic Field Mapping at the Nanoscale

Microscopy ◽  
2014 ◽  
Vol 63 (suppl 1) ◽  
pp. i1.2-i1 ◽  
Author(s):  
R. E. Dunin-Borkowski
Keyword(s):  
Electromagnetic Field ◽  
Recent Progress ◽  
Field Mapping

scholarly journals OpenEM – Electromagnetic field mapping robot for microwave and RF measurements

HardwareX ◽  
2019 ◽  
Vol 5 ◽  
pp. e00062
Author(s):  
Benjamin Wang ◽  
Rayan Sud ◽  
Michael Leung ◽  
Mimi Yang ◽  
Jesse A. Rodriguez ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Field Mapping ◽  
Rf Measurements

The effect of high-penetrating emission on the growth, superoxide accumulation and ATP/ADP ratio in Saccharomyces cerevisiae

2021 ◽  
pp. 1-8
Author(s):  
Li Qing ◽  
Tian Miao ◽  
Gao Peng ◽  
Teng Jie ◽  
Wang Bing ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Biological Effect ◽  
Adenosine Diphosphate ◽  
Yeast Cells ◽  
Control Group ◽  
Magnetic Vector Potential ◽  
Energy Status ◽  
Promoting Effect ◽  
Faraday Cage ◽  
Growth Promoting

Many kinds of physical field are able to affect the biological activity, such as electromagnetic field, magnetic field, scalar wave, magnetic vector potential and so on. Some works investigated a high-penetrating emission (HPE) generated by a LED generator that can affect the conductivity of water and the growth of dry yeast. In this research, the biological effect of the HPE of LED generator on S. cerevisiae was studied. The results showed that this kind of HPE could promote the growth of S. cerevisiae. With the decrease of initial concentration and the extension of exposure time, the growth promoting effect of HPE increased significantly. When the initial cell concentration was 2 × 102 cell/ml and exposed for 24 h, the number of yeast cells increased by 19.5% compared with the control group. Further studies showed that adenosine triphosphate (ATP) content and the ratio of ATP and adenosine diphosphate (ADP, ATP/ADP ratio) of exposed cells were higher than those of unexposed cells, indicating that exposed cells had higher cell viability and energy status. In addition, the intracellular superoxide (O2−) content decreased significantly after the HPE exposed. In this study, the stainless steel box acts as a Faraday cage to shield the electromagnetic field, so the biological effect of the HPE is not produced by the electromagnetic field. Nevertheless, the mechanism of the HPE is still unknown and needs further research. This is the first report on the effect of HPE on mitochondrial parameters, contributing to further study on HPE and revealing potential for future medical applications.

scholarly journals Development and testing of implanted carbon electrodes for electromagnetic field mapping during neuromodulation

2020 ◽  
Vol 84 (4) ◽  
pp. 2103-2116 ◽  
Author(s):  
Neeta Ashok Kumar ◽  
Munish Chauhan ◽  
Sri Kirthi Kandala ◽  
Sung‐Min Sohn ◽  
Rosalind J. Sadleir
Keyword(s):  
Electromagnetic Field ◽  
Carbon Electrodes ◽  
Field Mapping

Quantitation in thin Sections Within the Electron Microscope

1976 ◽  
Vol 34 ◽  
pp. 336-337
Author(s):  
J. Edie
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Electron Scattering ◽  
Volume Density ◽  
Thin Sections ◽  
Faraday Cage ◽  
Local Mass ◽  
Physical Measurements ◽  
Mass Volume ◽  
Varying Mass

In TEM image formation, the observed contrast variations within thin sections result from differential electron scattering within microregions of varying mass thickness. It is possible to utilize these electron scattering properties to obtain objective information regarding various specimen parameters (1, 2, 3).A pragmatic, empirical approach is described which enables a microscopist to perform physical measurements of thickness of thin sections and estimates of local mass, volume, density and, possibly, molecular configurations within thin sections directly in the microscope. A Faraday cage monitors the transmitted electron beam and permits measurements of electron beam intensities.

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