Abstract
Quantum dots (QDs) are semiconductor nanomaterials with a diameter typically in the range of 1–10nm. QDs have attracted great interest during the last decades mostly due to their unique optical characteristics, photostability, higher quantum yields, tunable size-dependent emissions, and biocompatibility. In addition, QDs can also exhibit sharp and well-peak shapes with stripping electrochemical responses of compounds. QDs were proposed as luminescent biological labels at the beginning, but now they are finding new important areas of application in analytical chemistry because their photoluminescent properties have been exploited in environmental monitoring, pharmaceutical and clinical analysis, and food quality control.
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