Magnetic particles containing a copolymer core, magnetic...

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Separation or purification

Reexamination Certificate

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C530S415000, C530S811000, C530S815000, C435S176000, C435S180000, C435S814000, C436S526000, C436S527000, C436S531000

Reexamination Certificate

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07868145

ABSTRACT:
A magnetic particle and fabrication method thereof. The magnetic particle comprises a polymer core, a magnetic material layer covering the polymer core, and a silicon containing layer covering the magnetic material layer. In addition, the magnetic particle may further comprise a coupling agent on the silicon containing layer, and an active molecule connected to the coupling agent. The magnetic particles provide controllable size, uniform diameter distribution, high magnetization, improved storage stability, and modified surface for targeting biomolecules for biomaterial separation and environmental analysis.

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Liu et al. “Preparation and Development of Core-shell Magnetic Nanocomposite Particles” Materials Review, vol. 21, 2007, pp. 183-188.

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