Get access

Photoluminescent Graphene Oxide Ink to Print Sensors onto Microporous Membranes for Versatile Visualization Bioassays

Authors

  • Qingsong Mei,

    1. Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031 (China)
    2. Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026 (China)
    Search for more papers by this author
  • Prof. Dr. Zhongping Zhang

    Corresponding author
    1. Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031 (China)
    2. Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026 (China)
    • Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031 (China)
    Search for more papers by this author

  • This work was supported by Natural Science Foundation of China (Nos. 20925518, 21175137).

Abstract

original image

Read all about it: Graphene oxide (GO) sensors can be formed on microporous membranes for the visual detection of peptides, protein, and DNA. Silver nanoparticles (AgNPs) modified with ligands, antibodies, and oligonucleotides adsorb onto the surface of GO nanosheets and quench the fluorescence. Upon addition of analytes, the AgNPs disassociate from the nanosheets, and thus the fluorescence is immediately restored.

Ancillary