Most SQUID-based biomagnetic studies of the human brain have sought to measure magnetic fields generated by electrical activity. In this paper we report preliminary results of the first systematic survey of brain tissue using SQUID moment magnetometers. In an attempt to locate and quantify the amount and concentrations of ferromagnetic materials present, using these techniques, we have found evidence suggesting the presence of small single-domain crystals of magnetite with a concentration of 10 ppb in cerebellar and cerebral cortical samples of human brain. The presence of these particles in vivo could have an influence on both the recording of evoked magnetic potentials and on some of the spin echoes recorded with MRI techniques
Samples taken from the human brain (Globus Pallidus) have been investigated by physical techniques s...
Recent research on developing and healing tissues suggests that small quasl-d. c Ionic currents (of ...
In this paper, an adequate account of the theory and practice of SQUIDs and of magnetoencephalograph...
Although the mineral magnetite (Fe_3O_4) is precipitated biochemically by bacteria, protists, and a ...
Ferritin, the iron storage nonhaeme-protein contains a ball of hydrated iron oxides (Fe_2O_3⋅nH_2O) ...
In recent years, a variety of animals have been found which are able to synthesize the ferromagnetic...
Globally, the demand for improved health care delivery while managing escalating costs is a major ch...
That the human brain contains magnetite is well established;however, its spatial distribution in the...
© 2018 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc. During the past several...
Globally, the demand for improved health care delivery while managing escalating costs is a major ch...
Ferromagnetic materials, magnetite crystals, have been extracted and identified from magnetotactic ...
In dieser Masterarbeit wurden ex-vivo Gewebeproben des menschlichen Gehirnsmithilfe eines Supraleitu...
Magnetite has a long and distinguished career as one of the most important minerals in geophysics, a...
A variety of living organisms has been found recently that are biochemically able to precipitate the...
Although ferrimagnetic material appears suitable as a basis of magneticfield perception in animals, ...
Samples taken from the human brain (Globus Pallidus) have been investigated by physical techniques s...
Recent research on developing and healing tissues suggests that small quasl-d. c Ionic currents (of ...
In this paper, an adequate account of the theory and practice of SQUIDs and of magnetoencephalograph...
Although the mineral magnetite (Fe_3O_4) is precipitated biochemically by bacteria, protists, and a ...
Ferritin, the iron storage nonhaeme-protein contains a ball of hydrated iron oxides (Fe_2O_3⋅nH_2O) ...
In recent years, a variety of animals have been found which are able to synthesize the ferromagnetic...
Globally, the demand for improved health care delivery while managing escalating costs is a major ch...
That the human brain contains magnetite is well established;however, its spatial distribution in the...
© 2018 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc. During the past several...
Globally, the demand for improved health care delivery while managing escalating costs is a major ch...
Ferromagnetic materials, magnetite crystals, have been extracted and identified from magnetotactic ...
In dieser Masterarbeit wurden ex-vivo Gewebeproben des menschlichen Gehirnsmithilfe eines Supraleitu...
Magnetite has a long and distinguished career as one of the most important minerals in geophysics, a...
A variety of living organisms has been found recently that are biochemically able to precipitate the...
Although ferrimagnetic material appears suitable as a basis of magneticfield perception in animals, ...
Samples taken from the human brain (Globus Pallidus) have been investigated by physical techniques s...
Recent research on developing and healing tissues suggests that small quasl-d. c Ionic currents (of ...
In this paper, an adequate account of the theory and practice of SQUIDs and of magnetoencephalograph...