scholarly journals Diseño e implementación de un sistema de control de bobinas Helmholtz para la caracterización de micro y nanopartículas

2019 ◽  
pp. 19-26
Author(s):  
Reyna Michelle Rodriguez-Rizo ◽  
Azdrubal Lobo Guerrero-Serrano ◽  
Jesús Hazael Garcia-Gallegoz ◽  
Javier Gustavo Cabal-Velarde
Keyword(s):  
Uniform Magnetic Field ◽  
Helmholtz Coil ◽  
Uniform Field ◽  
Kinetic Characterization ◽  
Magnetic Microparticles ◽  
Helmholtz Coils ◽  
Coil System ◽  
Stepper Motors ◽  
Silicone Matrix

In this work we develop a system of arrangements of two pairs of Helmholtz coils positioned on the “x” and “y” axis for the kinetic characterization of microbots in a liquid medium at different densities. These spherical microbots are synthesized with magnetite magnetic microparticles embedded in a polymeric silicone matrix. One of the most specific contributions is the development of an automated Helmholtz coil arrangement system, which, when moved by stepper motors, the Helmholtz coil system becomes Maxwell coil system as distances are modified, causing distances a uniform field gradient instead of a uniform magnetic field. This system can be used in the redirection of microbots for the elimination of cancer cells by means of the hyperthermia technique; In addition, you can transport medications to specific areas for treatment because these microbots are biocompatible with the human body.

scholarly journals Design, Simulation, Modeling, and Implementation of a Square Helmholtz Coil in Contrast with a Circular Coil for MRI Applications

2019 ◽  
Vol 9 (6) ◽  
pp. 4990-4995
Author(s):  
S. M. A. Ghaly ◽  
M. O. Khan
Keyword(s):  
Magnetic Field ◽  
Uniform Magnetic Field ◽  
Axial Magnetic Field ◽  
Electrical Current ◽  
Helmholtz Coil ◽  
Matlab Simulation ◽  
Helmholtz Coils ◽  
Circular Coil ◽  
Mathematical Equations ◽  
Magnetic Resonance Imaging Mri

This paper focuses on Helmholtz-type coils that can produce a second-order homogeneity field to be used for Magnetic Resonance Imaging (MRI) applications. A Helmholtz coil is a device used for producing a region of a nearly uniform magnetic field. It consists of two identical magnetic coils that are placed symmetrically along a common axis, one on either side of the experimental area, separated by a distance equal to the radius of the circular coil and half-length of the side of the square coils. Each coil carries an equal electrical current flowing in the same direction. The main objective of this article is to calculate the magnetic field provided by the coils at any point in space and to show and compare the uniform magnetic field induced by the square and circular Helmholtz coils. With the aid of MATLAB simulation tool, mathematical equations are simulated to demonstrate the axial magnetic field produced by one and two loops. Also, the design and simulation of electrical modeling for square and circular Helmholtz coils are performed using PSPICE. Finally, these coils are realized and tested experimentally, and the results for square and circular Helmholtz coils are compared.

Kinetic Characterization of Anticarsia gemmatalis Digestive Serine- Proteases and the Inhibitory Effect of Synthetic Peptides

2018 ◽  
Vol 24 (11) ◽  
Author(s):  
Adriana M. Patarroyo-Vargas ◽  
Yaremis B. Merino-Cabrera ◽  
Jose C. Zanuncio ◽  
Francelina Rocha ◽  
Wellington G. Campos ◽  
...  
Keyword(s):  
Synthetic Peptides ◽  
Serine Proteases ◽  
Inhibitory Effect ◽  
Anticarsia Gemmatalis ◽  
Kinetic Characterization

scholarly journals Kinetic characterization of yeast alcohol dehydrogenases. Amino acid residue 294 and substrate specificity.

1987 ◽  
Vol 262 (8) ◽  
pp. 3754-3761
Author(s):  
A.J. Ganzhorn ◽  
D.W. Green ◽  
A.D. Hershey ◽  
R.M. Gould ◽  
B.V. Plapp
Keyword(s):  
Amino Acid ◽  
Substrate Specificity ◽  
Amino Acid Residue ◽  
Kinetic Characterization ◽  
Alcohol Dehydrogenases

Kinetic characterization of a slow-binding inhibitor of Bla2: thiomaltol

2012 ◽  
Vol 28 (1) ◽  
pp. 137-142 ◽  
Author(s):  
Sara R. Schlesinger ◽  
Britain Bruner ◽  
Patrick J. Farmer ◽  
Sung-Kun Kim
Keyword(s):  
Kinetic Characterization ◽  
Slow Binding Inhibitor

Kinetic characterization of Ca2+-ATPase (SERCA1) inhibition by tri-n-butyltin(IV) chloride. A docking conformation proposal

2014 ◽  
Vol 33 (6) ◽  
pp. 1211-1224
Author(s):  
Scheherezade García-Carrillo ◽  
Francisco J. Aranda ◽  
Antonio Ortiz ◽  
José A. Teruel
Keyword(s):  
Kinetic Characterization
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