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  • Title: Modification of Ag nanoparticles with mixed thiols for improved SERS detection of poorly adsorbing target molecules: detection of MDMA.
    Author: Stewart A, Bell SE.
    Journal: Chem Commun (Camb); 2011 Apr 21; 47(15):4523-5. PubMed ID: 21387053.
    Abstract:
    Here we report an example of a mixed thiol monolayer on the surface of Ag nanoparticles which promotes adsorption and quantitative SERS detection of 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy"); the thiols in the mixed monolayers act synergistically since MDMA does not adsorb onto colloids modified with either of the thiols separately.
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