Magnetic nanoparticles surface-modified with dithiocarbamate

Details Magnetic nanoparticles surface-modified with dithiocarbamate Magnetic nanoparticles surface-modified with dithiocarbamate

2008-08-25

2011-10-25

Le, Hoa (Holly) (Department: 1788)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C427S215000, C427S216000, C427S220000, C564S017000, C564S074000, C564S075000, C564S100000, C977S773000, C977S838000

Reexamination Certificate

active

08043702

ABSTRACT:
A surface-modified, magnetic nanoparticle has one or more multi-dentate ligands bound to a surface of a magnetic nanoparticle. The one or more multi-dentate ligands are bound to the surface of the magnetic nanoparticle through one or more dithiocarbamate groups. The one or more multi-dentate ligands may be a compound of Formula II:in-line-formulae description="In-line Formulae" end="lead"?R2NCH2[CH2NR′CH2]m[CH2N(CS2−)CH2]q[CH2NHCH2]rCH2NR″2  (II)in-line-formulae description="In-line Formulae" end="tail"?where each R, R′, and R″ are independently H, a branched ethyleneimine unit, an unsubstituted or substituted alkyl, an unsubstituted or substituted alkenyl, or an unsubstituted or substituted aryl; and n is an integer from 1 to about 50.

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