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LABEL-FREE DETECTION OF Pb2+ USING SPECIFIC DNAZYME AND UNMODIFIED Au NANOPARTICLE PROBE

Author

Listed:
  • CHENGYONG LI

    (College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • ZIKE ZHAO

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • YAOQIAN LIU

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • LULU LV

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • BING QI

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • HAIXIA LIN

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • LEI HE

    (College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

  • SHENGLI SUN

    (#x2020;Monitoring Center of Ocean Resources and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China‡School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, P. R. China)

Abstract

A simple and sensitive Pb2+ sensor is developed based on label-free 17E DNAzyme and unmodified Au nanoparticles. On this basis, Pb2+ concentration can be judged according to the color variation of Au nanoparticles. The detection limit is 100nM and linear range is 100nM–16μM. It can serve as a measurement tool for Pb2+ rapid detection, which provides reference for the development of sensors in environmental monitoring and food safety.

Suggested Citation

  • Chengyong Li & Zike Zhao & Yaoqian Liu & Lulu Lv & Bing Qi & Haixia Lin & Lei He & Shengli Sun, 2018. "LABEL-FREE DETECTION OF Pb2+ USING SPECIFIC DNAZYME AND UNMODIFIED Au NANOPARTICLE PROBE," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(03), pages 1-6, April.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:03:n:s0218625x18500737
    DOI: 10.1142/S0218625X18500737
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