Absolute magnetic susceptibility of rat brain tissue

Abstract

The measured susceptibilities are close to the value measured for high-performance liquid chromatography H2 O and depend on the amount of gray and white matter regions present in the samples.

Iron mapping using the temperature dependency of the magnetic susceptibility

“…While rat brain has been investigated with SQUID recently, we here present magnetic susceptibility profiles for human brain white and gray matter along with corresponding Curie constants and Curie temperatures. These data may contribute to a better understanding of the magnetic behavior of brain tissue.…”

Computing the Diamagnetic Susceptibility and Diamagnetic Anisotropy of Membrane Proteins from Structural Subunits

“…In short, experimental techniques are capable of directly measuring the DA and DS of materials, 19,26,27 but these methods are labor intensive, can be error prone, and are often experimentally limited by the properties of the sample, the purity of the sample, or the bulk nature of the measurements. 28 Computational techniques, on the other hand, are capable of screening the magnetic properties of molecules with well characterized chemical sequences. Most computational techniques use ab initio methods to estimate DS of simple molecules by applying molecular orbital theory 29,30 or valence electron wave functions 31−34 at the atomic 35−37 or bond 38,39 levels.…”

“…Additional experimental approaches for measuring the DS and DA of samples include induction methods using supraconducting quantum interference devices, − SQUID, to measure magnetic flux quanta as the sample passes through the detector coil or nuclear magnetic resonance (NMR) , methods to measure the differences in chemical shift between a sample and a reference in sample tubes of different shape factors. In short, experimental techniques are capable of directly measuring the DA and DS of materials, ,, but these methods are labor intensive, can be error prone, and are often experimentally limited by the properties of the sample, the purity of the sample, or the bulk nature of the measurements …”