ISSN:
0392-6737
Keywords:
Biomagnetism (e.g., cardiomagnetism, neuromagnetism, tissue susceptibility) and magnetobiology (e.g., magnetic field effects on cellular processes, and on navigation and behaviour of various species
;
Superconducting quantum interference devices (SQUIDs) (including magnetometers electromagnetic radiation sources and detectors, and computer logic and memory devices
;
Other diagnostic imaging techniques
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary A preliminary study is here reported on a new potential marker for biomagnetic measurements. The marker consists of superparamagnetic polymer microspheres which were detected in the presence of external steady magnetic fields by means of an r.f.-SQUID magnetometer. The particles were prepared in samples differing in the concentration value and immersed in a homogeneous magnetic field of variable intensity. A simple model was taken into account for the distribution of the microspheres in the samples, so that the theoretical values were compared to the marker field values measured by the biomagnetic sensor. The overall sensitivity of the experimental apparatus and the minimum concentration value of the marker were then estimated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02463731
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