Magnetic gels which change volume in response to voltage changes

Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Magnetic imaging agent

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424646, 424648, 436173, A61B 5055

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active

055320066

ABSTRACT:
Disclosed are compositions useful in nuclear magnetic resonance imaging comprising a matrix which exhibits a volume phase change in response to an electric field, the matrix containing a magnetic and preferably superparamagnetic component distributed therethrough.

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