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“… Ag nanoclusters … Cys with a detection limit as low as 10nM. Good linear correlations are obtained over the concentration range from 0.5 to 55 μM (quenched … μM and 120 to 220 μM (enhanced emission at 555 nm) and 120 to 200 μM (quenched emission at 430 nm), respectively.”
“AgNPs and Ag ions in the presence of L-cysteine accelerated the bacterial cell growth rate, thereby reducing the bioavailability of Ag ions released from AgNPs under the single and coexistence conditions.”
Journal of environmental sciences • 2018 | View Paper
“In marked contrast to previous studies, addition of the organic complexing agent cysteine (Cys) alongside Ag only marginally moderated toxicity, implying AgCys− complexes were bioavailable to this diatom species.”
“In the presence of Cr(3+), cysteine was able to induce the aggregation of Ag NPs thereby resulting in a change in yellow colour of the Ag colloid to purple.”