Noble metal-magnetic metal oxide composite particle and method for producing same
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United States of America Patent
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Issued Date -
Aug 17, 2006
app pub date -
Mar 10, 2004
filing date -
Mar 17, 2003
priority date (Note) -
Abandoned
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Abstract
The present invention provides a method for producing noble metal/magnetic metal oxide composite fine particles comprising the steps of dispersing magnetic metal oxide fine particles in a solution containing a noble metal ion or adding to the solution a metal ion that can form the magnetic metal oxide, and then irradiating the resulting dispersion or solution with ultrasonic waves, ionizing radiation or ultraviolet waves; and noble metal/magnetic metal oxide composite fine particles obtained according to the method. According to the method of the present invention, the desired composite particles can be stably mass-produced in a high yield. The composite particles thus obtained are for use in the field of medical care/diagnosis and like technical fields in particular.
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