Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 5, Issue 16, Pages 8210-8216Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am402328t
Keywords
CuInS2/ZnS nanocrystals; microwave assisted; color tunable; human interleukin-6; fluoroimmunoassay
Funding
- National Natural Science Foundation of China (NSFC) [21171091, 21121091]
- 973 Program [2011CB933502]
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In this Article, we present a facile microwave-assisted synthesis route for the preparation of water-soluble and high-quality CuInS2/ZnS nanocrystals (NCs) with glutathione as the stabilizer. The as-prepared CuInS2/ZnS NCs exhibited small particle sizes (similar to 3.3 nm), long photoluminescence lifetimes, and color-tunable properties ranging from the visible to the near-infrared by varying the initial ratio of Cu/In in the precursors. The low-toxicity, highly luminescent and biocompatible CuInS2/ZnS NCs were applied to cell imaging, showing that they could be used as promising fluorescent probes. Furthermore, the CuInS2/ZnS NCs were used as the signal labels for a fluoroimmunoassay of the biomarker IL-6, showing their great potential for use as reliable point-of-care diagnostics for biomarkers of cancer and other diseases.
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