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Surfaces coated with target-induced fluorescent compounds for detection of target elements

  • US 7,629,179 B2
  • Filed: 03/03/2006
  • Issued: 12/08/2009
  • Est. Priority Date: 03/03/2005
  • Status: Expired due to Fees
First Claim
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1. A method for direct detection of a trace element, the method comprising:

  • (a) linking a surface of a nanoparticle with a compound to form a nanoparticle-linked compound, wherein the compound is selected from a group consisting of;

    2,3-diaminonapthalene (DAN);

    3,3,′

    -diaminobenzidine (DAB);

    4-[bis(carboxymethyl)-aminomethyl]-3-hydroxy-2-naphthoic acid (DHNA);

    acetic acid, 3,3′

    -[vinylenebis[(6-hydroxy-m-phenylene)methylenenitrilo]]tetra-, E-(8CI) (BDDS);

    8-amino-3,7,-dimethyl-10-phenyl-10H-phenazion-2-ylidene ammonium ion;

    3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium (thiamine);

    carboxymethyl-[4-[10-(4-dicarboxymethylaminobenzyl)anthracen-9-ylmethyl]phenyl]amino) acetic acid dipotassium salt (CDAPAP); and

    NMBDA, wherein NMBDA is a compound of the formula;

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