Room temperature ferromagnetic gadolinium silicide nanoparticles

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United States of America Patent

PATENT NO 9907865
SERIAL NO

15332940

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Abstract

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A particle usable as T1 and T2 contrast agents is provided. The particle is a gadolinium silicide (Gd5Si4) particle that is ferromagnetic at temperatures up to 290 K and is less than 2 μm in diameter. An MRI contrast agent that includes a plurality of gadolinium silicide (Gd5Si4) particles that are less than 1 μm in diameter is also provided. A method for creating gadolinium silicide (Gd5Si4) particles is also provided. The method includes the steps of providing a Gd5Si4 bulk alloy; grinding the Gd5Si4 bulk alloy into a powder; and milling the Gd5Si4 bulk alloy powder for a time of approximately 20 minutes or less.

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Patent OwnerAddress
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC1805 COLLABORATION PLACE SUITE 2100 AMES IA 50010

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gupta, Shalabh Ames, US 27 134
Hadimani, Magundappa Ravi L Glen Allen, US 4 5
Harstad, Shane Rockford, US 1 0
Jiles, David C Ames, US 24 117
Pecharsky, Vitalij Ames, US 3 25

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