GoldGold Sodium ThiomalateGold CompoundsMetal NanoparticlesGold AlloysGold Colloid, RadioactiveGold RadioisotopesOrganogold CompoundsAurothioglucoseNanotubesAuranofinGold Sodium ThiosulfateSensitivity and SpecificityMiningElectrodesSurface PropertiesBiosensing TechniquesNanotechnologyParticle SizeNanostructuresNanoshellsReproducibility of ResultsSilverElectrochemistryElectrochemical TechniquesThiomalatesSurface Plasmon Resonance