Angewandte Chemie International Edition · 2007 · 760 citations · 43 references
Natural SciencesChemistryMaterials ScienceAnalytical ChemistryNanomaterialsNanotechnologyChemical SensorsFluorescence SpectroscopyMolecular SensorsNanomaterial CharacterizationNanomaterial-based BiosensorsNanosensorsFluorescent NanobiosensorsFluorescent SensingGold Nanoparticle BiosensorsGold Nanoparticle DetectionGold Nanoparticle SynthesisGold NanostructuresNanoparticle-based SensingNanoparticles
Quenching upon aggregation: 11-Mercaptoundecanoic acid (11-MUA)-protected Au nanoparticles (11-MUA-AuNPs) are much more stable and fluoresce much more strongly than the corresponding unmodified AuNPs. After addition of 2,6-pyridinedicarboxylic acid, the 11-MUA-AuNPs bind to HgII with both high sensitivity and selectivity.
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Yuichi Negishi, Katsuyuki Nobusada, Tatsuya Tsukuda · Journal of the American Chemical Society · 2005 · 1.6K citations